/* CSS Variables & Reset */
:root {
    --bg-primary: #050508;
    --bg-secondary: #0a0a10;
    --bg-sidebar: #08080c;
    --bg-card: rgba(20, 20, 30, 0.6);
    --bg-card-solid: #14141e;
    --bg-card-hover: rgba(30, 30, 45, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.04);
    --text-primary: #f0f0f5;
    --text-secondary: #9090a0;
    --text-muted: #606070;
    --accent-primary: #10b981;
    --accent-secondary: #059669;
    --accent-tertiary: #047857;
    --accent-cyan: #059669;
    --accent-green: #10b981;
    --accent-orange: #10b981;
    --accent-red: #10b981;
    --gradient-primary: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%);
    --gradient-secondary: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --gradient-warm: linear-gradient(135deg, #10b981 0%, #047857 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.02) 100%);
    --glow-primary: 0 0 40px rgba(16, 185, 129, 0.3);
    --glow-secondary: 0 0 40px rgba(5, 150, 105, 0.3);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --sidebar-width: 280px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Removed duplicate - handled above */

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
    max-width: 100vw;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Prevent text size adjustment on iOS */
html {
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

/* Smooth scrolling for mobile */
@media (prefers-reduced-motion: no-preference) {
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}
}

/* Better focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Improve tap targets on mobile */
@media (max-width: 768px) {
    button,
    a,
    input[type="checkbox"],
    input[type="radio"] {
        min-height: 44px;
        min-width: 44px;
    }
    
    input[type="text"],
    input[type="number"],
    input[type="password"],
    input[type="email"],
    select,
    textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}



/* Gradient text */
.gradient-text {
    position: relative;
}

/* Animated underline for nav items */
.nav-item span {
    position: relative;
}

.nav-item span::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-item:hover span::after {
    width: 100%;
}

/* Badge animation */
.hero-badge {
    animation: fadeInUp 0.6s ease-out;
}

/* Ripple effect on buttons */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

/* ====== ENHANCED ANIMATIONS ====== */

/* Magnetic hover effect for buttons */
.btn-primary {
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 10px 40px rgba(16, 185, 129, 0.4),
        0 0 80px rgba(16, 185, 129, 0.2);
}

/* Animated border gradient */
.tool-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(16, 185, 129, 0.5) 50%,
        transparent 70%
    );
    border-radius: calc(var(--radius-lg) + 2px);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    animation: borderRotate 4s linear infinite;
    background-size: 300% 300%;
}

@keyframes borderRotate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.tool-card:hover::before {
    opacity: 1;
}

/* Staggered card animations */
.tools-grid .tool-card {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
    animation: cardReveal 0.6s ease forwards;
}

.tools-grid .tool-card:nth-child(1) { animation-delay: 0.1s; }
.tools-grid .tool-card:nth-child(2) { animation-delay: 0.15s; }
.tools-grid .tool-card:nth-child(3) { animation-delay: 0.2s; }
.tools-grid .tool-card:nth-child(4) { animation-delay: 0.25s; }
.tools-grid .tool-card:nth-child(5) { animation-delay: 0.3s; }
.tools-grid .tool-card:nth-child(6) { animation-delay: 0.35s; }
.tools-grid .tool-card:nth-child(7) { animation-delay: 0.4s; }
.tools-grid .tool-card:nth-child(8) { animation-delay: 0.45s; }
.tools-grid .tool-card:nth-child(9) { animation-delay: 0.5s; }
.tools-grid .tool-card:nth-child(10) { animation-delay: 0.55s; }
.tools-grid .tool-card:nth-child(11) { animation-delay: 0.6s; }
.tools-grid .tool-card:nth-child(12) { animation-delay: 0.65s; }

@keyframes cardReveal {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}


/* Glowing text effect */
.section-title {
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-green);
    filter: blur(20px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.section-header:hover .section-title::after {
    opacity: 0.5;
}


/* Neon glow effect for sidebar items */
.nav-item:hover {
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.nav-item:hover svg {
    filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.6));
}


/* Blog card hover effects */
.blog-card-image {
    transition: transform 0.5s ease;
    overflow: hidden;
}

.blog-card:hover .blog-card-image {
    transform: scale(1.05);
}

.blog-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(255,255,255,0.1) 50%,
        transparent 60%
    );
    background-size: 200% 200%;
    animation: shimmerEffect 3s linear infinite;
}

@keyframes shimmerEffect {
    0% { background-position: 200% 200%; }
    100% { background-position: -200% -200%; }
}


/* Electric effect on buttons */
.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transform: translateX(-100%);
    transition: none;
}

.btn-primary:hover::before {
    animation: electricSlide 0.6s ease;
}

@keyframes electricSlide {
    to { transform: translateX(100%); }
}

/* Shake animation for errors */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.5s ease;
}

/* Success confetti burst */
@keyframes confettiBurst {
    0% { transform: scale(0) rotate(0deg); opacity: 1; }
    100% { transform: scale(1.5) rotate(180deg); opacity: 0; }
}

/* Matrix rain effect for background */
@keyframes matrixFall {
    0% { transform: translateY(-100%); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100vh); opacity: 0; }
}

/* Smooth scroll indicator */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform-origin: left;
    transform: scaleX(0);
    z-index: 1000;
}

/* Page transition effect */
.page-transition {
    animation: pageSlide 0.5s ease;
}

@keyframes pageSlide {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hover lift for all interactive elements */
.nav-item, .tool-card, .blog-card, .btn {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Elastic scale on click */
.tool-card:active {
    transform: scale(0.98) !important;
}

/* Rainbow border animation */
@keyframes rainbowBorder {
    0% { border-color: #10b981; }
    20% { border-color: #059669; }
    40% { border-color: #047857; }
    60% { border-color: #065f46; }
    80% { border-color: #059669; }
    100% { border-color: #10b981; }
}

/* Focus state animations */
input:focus, select:focus {
    animation: focusPulse 0.3s ease;
}

@keyframes focusPulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    100% { box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1); }
}

a {
    text-decoration: none;
    color: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Layout */
.app-layout {
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
    max-width: 100vw;
    position: relative;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden; /* Keep hidden to prevent horizontal scroll */
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-overflow-scrolling: touch;
    transition: width 0.3s ease, transform 0.3s ease;
}

/* Allow nav items to show tooltips outside sidebar */
.sidebar-nav {
    overflow: visible;
}

.sidebar.collapsed .nav-section {
    overflow: visible;
}

/* Start with sidebar collapsed by default */
.sidebar {
    width: 60px;
}

.sidebar.open {
    width: var(--sidebar-width);
}

/* Ensure collapsed sidebar shows icons only */
.sidebar.collapsed {
    width: 60px !important;
    transform: translateX(0);
    left: 0;
}

/* Hide logo by default - only show when sidebar is open */
.sidebar .logo {
    display: none !important;
}

.sidebar.open .logo {
    display: flex !important;
}

.sidebar.collapsed .logo {
    display: none !important;
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-section-title {
    opacity: 0;
    width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.2s ease, width 0.3s ease;
}

.sidebar.collapsed .logo {
    justify-content: center;
    gap: 0;
}

.sidebar.collapsed .logo-icon {
    margin: 0 auto;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 10px;
    gap: 0;
}

.sidebar.collapsed .nav-item svg {
    margin: 0 auto;
}

.sidebar.collapsed .sidebar-header {
    padding: 8px 10px 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.sidebar.collapsed .sidebar-header > div {
    display: none; /* Hide logo and close button when collapsed */
}

.sidebar.collapsed .sidebar-close-btn {
    display: none;
}

.sidebar.collapsed .nav-section {
    padding: 0 8px;
}

/* Tooltip for collapsed sidebar items */
.sidebar.collapsed .nav-item {
    position: relative;
    overflow: visible; /* Allow tooltips to escape */
}

.sidebar.collapsed .nav-item:hover::before {
    content: attr(data-tooltip);
    position: fixed; /* Use fixed positioning to escape sidebar clipping */
    right: auto;
    left: 76px; /* Position to the right of collapsed sidebar (60px + 16px) */
    top: var(--tooltip-top, 50%); /* Will be set dynamically by JS */
    transform: translateY(-50%) scale(0.8);
    padding: 10px 16px;
    background: linear-gradient(135deg, var(--bg-card-solid) 0%, rgba(20, 25, 35, 0.98) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    z-index: 10000; /* Very high z-index to appear above everything */
    pointer-events: none;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.7),
        0 4px 16px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.15),
        0 0 30px rgba(16, 185, 129, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    opacity: 0;
    animation: tooltipPopOut 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    backdrop-filter: blur(20px);
    min-width: max-content;
    max-width: 200px;
    text-align: left;
    margin-right: 0;
    transform-origin: left center;
}

.sidebar.collapsed .nav-item:hover::after {
    content: '';
    position: fixed; /* Use fixed positioning to escape sidebar clipping */
    right: auto;
    left: 70px; /* Position arrow between sidebar and tooltip */
    top: var(--tooltip-top, 50%); /* Will be set dynamically by JS */
    transform: translateY(-50%) scale(0.8);
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 6px solid rgba(20, 25, 35, 0.98);
    z-index: 10001; /* Above tooltip */
    opacity: 0;
    filter: drop-shadow(-2px 0 4px rgba(0, 0, 0, 0.3));
    animation: tooltipArrowPopOut 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transform-origin: center center;
}

@keyframes tooltipPopOut {
    0% {
        opacity: 0;
        transform: translateY(-50%) translateX(-10px) scale(0.8);
    }
    50% {
        transform: translateY(-50%) translateX(0) scale(1.05);
    }
    100% {
        opacity: 1;
        transform: translateY(-50%) translateX(0) scale(1);
    }
}

/* Ensure tooltips are always visible and not clipped */
.sidebar.collapsed .nav-item::before,
.sidebar.collapsed .nav-item::after {
    will-change: transform, opacity;
}

@keyframes tooltipArrowPopOut {
    0% {
        opacity: 0;
        transform: translateY(-50%) translateX(-5px) scale(0.8);
    }
    50% {
        transform: translateY(-50%) translateX(0) scale(1.1);
    }
    100% {
        opacity: 1;
        transform: translateY(-50%) translateX(0) scale(1);
    }
}

/* Ensure tooltips work on touch devices */
@media (hover: none) and (pointer: coarse) {
    .sidebar.collapsed .nav-item:active::before {
        animation: tooltipPopOut 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }
    .sidebar.collapsed .nav-item:active::after {
        animation: tooltipArrowPopOut 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }
}

/* Prevent tooltip from going off screen on left */
.sidebar.collapsed .nav-item:hover::before {
    max-width: min(200px, calc(100vw - 100px));
    word-wrap: break-word;
    white-space: normal;
    line-height: 1.5;
}

/* Enhanced hover effect on nav item when tooltip shows */
.sidebar.collapsed .nav-item:hover {
    background: var(--bg-card);
    transform: scale(1.05);
    z-index: 999;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

/* Adjust tooltip position if too close to left edge */
@media (max-width: 480px) {
    .sidebar.collapsed .nav-item:hover::before {
        right: calc(100% + 12px);
        font-size: 12px;
        padding: 8px 14px;
        max-width: min(180px, calc(100vw - 80px));
    }
    
    .sidebar.collapsed .nav-item:hover::after {
        right: calc(100% + 6px);
        border-left-width: 5px;
        border-top-width: 5px;
        border-bottom-width: 5px;
    }
}

/* Smooth width transitions for responsive changes */
.main-content {
    transition: margin-left 0.3s ease;
}

/* Start with collapsed sidebar margin */
.main-content {
    margin-left: 60px;
    max-width: calc(100vw - 60px);
    width: calc(100vw - 60px);
}

.sidebar.open ~ .main-content {
    margin-left: var(--sidebar-width);
    max-width: calc(100vw - var(--sidebar-width));
    width: calc(100vw - var(--sidebar-width));
}

/* Responsive main content for open sidebar */
@media (max-width: 900px) {
    .sidebar.open ~ .main-content {
        margin-left: clamp(200px, 25vw, 240px);
        max-width: calc(100vw - clamp(200px, 25vw, 240px));
        width: calc(100vw - clamp(200px, 25vw, 240px));
    }
}

@media (max-width: 768px) {
    .sidebar.open ~ .main-content {
        margin-left: clamp(160px, 28vw, 200px);
        max-width: calc(100vw - clamp(160px, 28vw, 200px));
        width: calc(100vw - clamp(160px, 28vw, 200px));
    }
}

@media (max-width: 600px) {
    .sidebar.open ~ .main-content {
        margin-left: clamp(140px, 30vw, 180px);
        max-width: calc(100vw - clamp(140px, 30vw, 180px));
        width: calc(100vw - clamp(140px, 30vw, 180px));
    }
}

@media (max-width: 480px) {
    .sidebar.open ~ .main-content {
        margin-left: clamp(120px, 28vw, 160px);
        max-width: calc(100vw - clamp(120px, 28vw, 160px));
        width: calc(100vw - clamp(120px, 28vw, 160px));
    }
}

/* Sidebar overlay for mobile - hidden since sidebar is always visible */
.sidebar-overlay {
    display: none;
}

.sidebar-header {
    padding: 24px 20px 28px;
    border-bottom: 1px solid var(--border-light);
    position: relative;
    display: flex;
    flex-direction: column;
}

.sidebar.open .sidebar-header {
    flex-direction: row;
}

.sidebar.open .sidebar-header > div {
    display: flex;
    width: 100%;
}

.sidebar-close-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    touch-action: manipulation;
}

.sidebar-close-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
    transform: scale(1.05);
}

.sidebar-close-btn:active {
    transform: scale(0.95);
}

.sidebar-close-btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

@media (max-width: 768px) {
    .hamburger-menu-btn {
        width: 40px;
        height: 40px;
    }
    
    .sidebar.collapsed .hamburger-menu-btn {
        margin: 0 auto 10px;
    }
    
    .sidebar-close-btn {
        width: 28px;
        height: 28px;
        min-width: 28px;
        min-height: 28px;
        padding: 5px;
    }
    
    .sidebar-close-btn svg {
        width: 16px;
        height: 16px;
    }
}

@media (max-width: 480px) {
    .hamburger-menu-btn {
        width: 36px;
        height: 36px;
    }
    
    .sidebar.collapsed .hamburger-menu-btn {
        margin: 0 auto 8px;
    }
    
    .sidebar-close-btn {
        width: 24px;
        height: 24px;
        min-width: 24px;
        min-height: 24px;
        padding: 4px;
    }
    
    .sidebar-close-btn svg {
        width: 14px;
        height: 14px;
    }
}

/* Hide logo when sidebar is collapsed */
.sidebar.collapsed .logo {
    display: none !important;
}

/* Show logo when sidebar is open */
.sidebar.open .logo {
    display: flex !important;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: default;
    pointer-events: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--glow-primary);
    animation: logoGlow 3s ease-in-out infinite alternate;
}

@keyframes logoGlow {
    0% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.3); }
    100% { box-shadow: 0 0 30px rgba(5, 150, 105, 0.5); }
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Sidebar Navigation */
.sidebar-nav {
    padding: 20px 0;
}

.nav-section {
    padding: 0 16px;
    margin-bottom: 28px;
}

.nav-section-title {
    display: block;
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 0 12px;
    margin-bottom: 12px;
}

.nav-list {
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    min-height: 44px;
}

.nav-item span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
    border-radius: 0 2px 2px 0;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item:hover::before {
    transform: scaleY(1);
}

.nav-item.active {
    background: var(--bg-card);
    color: var(--text-primary);
}

.nav-item.active::before {
    transform: scaleY(1);
}

.nav-item svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.nav-item:hover svg {
    transform: scale(1.1);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    overflow-x: hidden;
    max-width: calc(100vw - var(--sidebar-width));
    width: calc(100vw - var(--sidebar-width));
}

.content-header {
    padding: 20px 40px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(5, 5, 8, 0.8);
    backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.breadcrumb {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.breadcrumb:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.breadcrumb svg {
    transition: transform var(--transition-fast);
}

.breadcrumb:hover svg {
    transform: scale(1.1);
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Hero Section */
.hero-section {
    padding: 80px 40px 60px;
    position: relative;
    overflow: hidden;
}

/* Animated text reveal */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    animation: revealText 0.8s ease forwards;
}

.reveal-text:nth-child(1) { animation-delay: 0.1s; }
.reveal-text:nth-child(2) { animation-delay: 0.2s; }
.reveal-text:nth-child(3) { animation-delay: 0.3s; }
.reveal-text:nth-child(4) { animation-delay: 0.4s; }

@keyframes revealText {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animated gradient text */
.gradient-text {
    background: linear-gradient(
        90deg,
        #10b981,
        #059669,
        #047857,
        #10b981,
        #10b981,
        #10b981,
        #10b981
    );
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 6s linear infinite;
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}


/* Typewriter cursor effect */
.typewriter-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background: var(--accent-primary);
    margin-left: 4px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
    animation: heroOrb 15s ease-in-out infinite;
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(4, 120, 87, 0.1) 0%, transparent 70%);
    animation: heroOrb 20s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes heroOrb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease-out;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.1;
    max-width: 700px;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-title .gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 550px;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-subtitle strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stats */
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.stat-item {
    text-align: left;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn:hover::before {
    opacity: 1;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(3px);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.5);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--bg-card);
    border-color: var(--accent-primary);
    box-shadow: var(--glow-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 16px;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

/* Tools Section */
.tools-section {
    padding: 20px 40px 60px;
}

.section-header {
    margin-bottom: 32px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.section-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    transition: color var(--transition-fast);
}

.section-header:hover .section-title {
    color: var(--accent-green);
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.tool-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.tool-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.tool-card:hover {
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 60px rgba(16, 185, 129, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Card spotlight effect on hover */
.tool-card {
    --spotlight-x: 50%;
    --spotlight-y: 50%;
    background: 
        radial-gradient(
            600px circle at var(--spotlight-x) var(--spotlight-y),
            rgba(16, 185, 129, 0.06),
            transparent 40%
        ),
        var(--bg-card);
}

.tool-card:hover::before,
.tool-card:hover::after {
    opacity: 1;
}

.tool-icon {
    width: 52px;
    height: 52px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    transition: all var(--transition-normal);
}

.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--glow-primary);
}

.tool-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.tool-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
    transition: color var(--transition-fast);
}

.tool-card:hover h3 {
    color: var(--accent-green);
}

.tool-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.tool-card-arrow {
    position: absolute;
    bottom: 24px;
    right: 24px;
    width: 32px;
    height: 32px;
    background: var(--bg-card-solid);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-normal);
}

.tool-card:hover .tool-card-arrow {
    opacity: 1;
    transform: translateX(0);
}

.tool-card-arrow svg {
    width: 16px;
    height: 16px;
    color: var(--accent-primary);
}

/* Different tool card colors */
.tool-card[data-color="cyan"] .tool-icon { background: var(--gradient-secondary); }
.tool-card[data-color="cyan"]:hover { border-color: rgba(16, 185, 129, 0.3); }

.tool-card[data-color="pink"] .tool-icon { background: linear-gradient(135deg, #047857 0%, #047857 100%); }
.tool-card[data-color="pink"]:hover { border-color: rgba(4, 120, 87, 0.3); }

.tool-card[data-color="orange"] .tool-icon { background: var(--gradient-warm); }
.tool-card[data-color="orange"]:hover { border-color: rgba(5, 150, 105, 0.3); }

/* Blog Section */
.blog-section {
    padding: 60px 40px;
    border-top: 1px solid var(--border-color);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.blog-card {
    --spotlight-x: 50%;
    --spotlight-y: 50%;
    background: 
        radial-gradient(
            400px circle at var(--spotlight-x) var(--spotlight-y),
            rgba(16, 185, 129, 0.08),
            transparent 40%
        ),
        var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

.blog-card:hover {
    transform: translateY(-6px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.blog-card-image {
    height: 200px;
    background: var(--bg-card-solid);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.blog-card-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.3) 0%, transparent 50%);
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-card-category {
    display: inline-block;
    padding: 6px 12px;
    background: var(--bg-card-solid);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.blog-card-content {
    padding: 24px;
}

.blog-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title {
    color: var(--accent-green);
}

.blog-card-excerpt {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.blog-card-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.blog-card-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: white;
}

.blog-card-author-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-primary);
}

.blog-card-date {
    font-size: 11px;
    color: var(--text-muted);
}

.blog-card-read-time {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Footer */
.content-footer {
    padding: 32px 40px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.content-footer p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

.modal-content.e-sign-modal {
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    background: #2d2d2d;
    padding: 0;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(20px) scale(0.98);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--accent-red);
    color: white;
    transform: rotate(90deg);
}

/* E-Sign Signature Modal */
.e-sign-modal {
    max-width: 700px;
    padding: 0;
    text-align: left;
    background: #2d2d2d;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

@media (max-width: 768px) {
    .e-sign-modal {
        max-width: 95%;
    }
    
    .e-sign-modal-header {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .e-sign-tabs {
        flex-wrap: wrap;
    }
    
    .e-sign-tab {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .e-sign-tab-content {
        padding: 20px;
        min-height: 250px;
    }
    
    .e-sign-type-preview {
        padding: 30px;
        min-height: 150px;
    }
    
    .e-sign-cursive {
        font-size: 36px;
    }
    
    .signature-canvas {
        height: 180px;
    }
    
    .e-sign-modal-actions {
        padding: 12px 16px;
        flex-direction: column;
    }
    
    .btn-e-sign-close,
    .btn-e-sign-save-modal {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .e-sign-modal {
        max-width: 100%;
        border-radius: 0;
    }
    
    .e-sign-modal-header {
        padding: 10px 12px;
    }
    
    .e-sign-color-label {
        font-size: 12px;
    }
    
    #eSignColorPicker {
        width: 50px;
        height: 36px;
    }
    
    .e-sign-tab {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .e-sign-tab-content {
        padding: 16px;
        min-height: 200px;
    }
    
    .e-sign-type-preview {
        padding: 20px;
        min-height: 120px;
    }
    
    .e-sign-cursive {
        font-size: 28px;
    }
    
    .e-sign-type-input {
        font-size: 14px;
        padding: 10px 14px;
    }
    
    .signature-canvas {
        height: 150px;
    }
    
    .e-sign-image-drop-zone {
        padding: 30px 20px;
    }
    
    .e-sign-modal-actions {
        padding: 10px 12px;
    }
    
    .btn-e-sign-close,
    .btn-e-sign-save-modal {
        padding: 10px 20px;
        font-size: 14px;
    }
}

.e-sign-modal-header {
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.e-sign-color-picker-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.e-sign-color-label {
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
}

#eSignColorPicker {
    width: 40px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
    padding: 2px;
}

#eSignColorPicker::-webkit-color-swatch-wrapper {
    padding: 0;
}

#eSignColorPicker::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

#eSignColorPicker::-moz-color-swatch {
    border: none;
    border-radius: 2px;
}

.e-sign-save-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ffffff;
    font-size: 14px;
    cursor: pointer;
}

.e-sign-save-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.e-sign-tabs {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: #1f1f1f;
}

.e-sign-tab {
    flex: 1;
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: #9ca3af;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.e-sign-tab:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.e-sign-tab.active {
    color: #ffffff;
    border-bottom-color: #10b981;
    background: #2d2d2d;
}

.e-sign-tab-content {
    display: none;
    padding: 24px;
    min-height: 300px;
}

.e-sign-tab-content.active {
    display: block;
}

/* Type Tab */
.e-sign-type-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.e-sign-type-preview {
    background: #1f1f1f;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 40px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.e-sign-type-display {
    width: 100%;
    text-align: center;
}

.e-sign-cursive {
    font-family: 'Dancing Script', 'Brush Script MT', 'Lucida Handwriting', cursive;
    font-size: 48px;
    color: #ffffff;
    font-weight: 400;
    display: inline-block;
}

.e-sign-type-placeholder {
    color: #6b7280;
    font-size: 16px;
    font-style: italic;
}

.e-sign-type-input-container {
    display: flex;
    gap: 12px;
    align-items: center;
}

.e-sign-type-input {
    flex: 1;
    padding: 12px 16px;
    background: #1f1f1f;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: #ffffff;
    font-size: 15px;
    font-family: var(--font-main);
}

.e-sign-type-input:focus {
    outline: none;
    border-color: #10b981;
}

.e-sign-type-input::placeholder {
    color: #6b7280;
}

.btn-e-sign-clear {
    padding: 12px 20px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: #9ca3af;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-e-sign-clear:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.2);
}

/* Draw Tab */
.signature-canvas {
    width: 100%;
    height: 200px;
    max-width: 600px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    background: white;
    cursor: crosshair;
    display: block;
    margin: 0 auto;
    touch-action: none;
    user-select: none;
}

/* Image Tab */
.e-sign-image-upload {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.e-sign-image-drop-zone {
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: #1f1f1f;
}

.e-sign-image-drop-zone:hover,
.e-sign-image-drop-zone.dragover {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
}

.e-sign-image-drop-zone svg {
    color: #6b7280;
    margin-bottom: 12px;
}

.e-sign-image-drop-zone p {
    color: #ffffff;
    font-size: 15px;
    margin: 8px 0;
}

.e-sign-image-hint {
    color: #6b7280 !important;
    font-size: 13px !important;
}

.e-sign-image-preview {
    text-align: center;
}

.e-sign-image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.btn-e-sign-remove-image {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    color: #10b981;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-e-sign-remove-image:hover {
    background: rgba(16, 185, 129, 0.1);
    border-color: #10b981;
}

/* Modal Actions */
.e-sign-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: #1f1f1f;
}

.btn-e-sign-close {
    padding: 10px 24px;
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: 4px;
}

.btn-e-sign-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-e-sign-save-modal {
    padding: 10px 24px;
    background: #10b981;
    border: none;
    border-radius: 4px;
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-e-sign-save-modal:hover {
    background: #059669;
}

/* Tool UI Inside Modal */
.tool-ui {
    padding: 40px;
}

.tool-ui h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tool-ui .tool-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 15px;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 32px;
    text-align: center;
    background: var(--bg-card);
    transition: all var(--transition-normal);
    cursor: pointer;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--accent-primary);
}

.drop-zone:hover::before,
.drop-zone.dragover::before {
    opacity: 0.05;
}

.drop-zone-icon {
    font-size: 56px;
    margin-bottom: 20px;
    display: block;
    position: relative;
    z-index: 1;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.drop-zone h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.drop-zone p {
    color: var(--text-secondary);
    font-size: 14px;
    position: relative;
    z-index: 1;
}

/* File List */
.file-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.3s ease-out;
}

.file-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-name {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    color: var(--text-muted);
    font-size: 12px;
}

.file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 20px;
    padding: 6px 10px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

.file-remove:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

/* Options Panel */
.options-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
}

.options-panel h4 {
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.option-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.option-row label {
    min-width: 100px;
    font-size: 13px;
    color: var(--text-secondary);
}

.option-row input[type="text"],
.option-row input[type="number"],
.option-row input[type="password"],
.option-row select {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 13px;
    transition: all var(--transition-fast);
}

.option-row input:focus,
.option-row select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-process {
    flex: 1;
    min-width: 180px;
}

/* Progress */
.progress-container {
    margin-top: 24px;
    display: none;
}

.progress-container.active {
    display: block;
    animation: fadeInUp 0.3s ease-out;
}

.progress-bar {
    height: 8px;
    background: var(--bg-card);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 100px;
    transition: width 0.3s ease;
    width: 0%;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
}

/* Success state */
.success-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 32px;
    text-align: center;
    animation: fadeInUp 0.5s ease-out;
}

.success-icon {
    font-size: 64px;
    margin-bottom: 24px;
    animation: successPop 0.5s ease-out;
}

@keyframes successPop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.success-message h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.success-message p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 15px;
}

/* Blog Modal */
.blog-modal-content {
    padding: 48px;
    max-width: 720px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .blog-modal-content {
        padding: 32px 24px;
    }
    
    .blog-modal-title {
        font-size: 26px;
    }
    
    .blog-modal-body {
        font-size: 15px;
    }
    
    .blog-modal-body h2 {
        font-size: 20px;
    }
    
    .blog-modal-body h3 {
        font-size: 17px;
    }
}

@media (max-width: 480px) {
    .blog-modal-content {
        padding: 24px 16px;
    }
    
    .blog-modal-title {
        font-size: 22px;
    }
    
    .blog-modal-body {
        font-size: 14px;
    }
    
    .blog-modal-body h2 {
        font-size: 18px;
    }
    
    .blog-modal-body h3 {
        font-size: 16px;
    }
    
    .blog-modal-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

.blog-modal-header {
    margin-bottom: 32px;
}

.blog-modal-category {
    display: inline-block;
    padding: 6px 14px;
    background: var(--gradient-primary);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.blog-modal-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 16px;
}

.blog-modal-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 13px;
}

.blog-modal-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.blog-modal-body h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.blog-modal-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.blog-modal-body p {
    margin-bottom: 16px;
}

.blog-modal-body code {
    background: var(--bg-card);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 14px;
    color: var(--accent-primary);
}

.blog-modal-body pre {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--border-color);
}

.blog-modal-body pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.blog-modal-body ul, .blog-modal-body ol {
    margin: 16px 0;
    padding-left: 24px;
}

.blog-modal-body li {
    margin-bottom: 8px;
}

/* Responsive */
/* Large screens (1200px+) */
@media (min-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
}

/* Medium-large screens (900px - 1200px) */
@media (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .modal-content {
        max-width: 90%;
    }
}

/* Tablets and small laptops (768px - 900px) */
@media (max-width: 900px) {
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(200px, 25vw, 240px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(200px, 25vw, 240px);
        max-width: calc(100vw - clamp(200px, 25vw, 240px));
        width: calc(100vw - clamp(200px, 25vw, 240px));
    }
    
    .sidebar-toggle {
        display: none;
    }
    
    .sidebar-header {
        padding: 18px 16px 22px;
    }
    
    .logo-text {
        font-size: clamp(14px, 2vw, 16px);
    }
    
    .nav-item {
        padding: 9px 12px;
        font-size: clamp(12px, 1.5vw, 13px);
    }
    
    .content-header {
        padding: 16px 20px;
    }
    
    .hero-section {
        padding: 60px 24px 40px;
    }
    
    .hero-title {
        font-size: clamp(32px, 6vw, 48px);
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .tools-section,
    .blog-section {
        padding: 40px 24px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .hero-stats {
        gap: 32px;
        flex-wrap: wrap;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .modal-content {
        max-width: 95%;
        padding: 20px;
    }
    
    .tool-ui {
        padding: 24px;
    }
    
    .drop-zone {
        padding: 40px 24px;
    }
}

/* Small tablets and large phones (600px - 768px) */
@media (max-width: 768px) {
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(160px, 28vw, 200px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(160px, 28vw, 200px);
        max-width: calc(100vw - clamp(160px, 28vw, 200px));
        width: calc(100vw - clamp(160px, 28vw, 200px));
    }
    
    .sidebar-header {
        padding: 16px 12px 20px;
    }
    
    .logo {
        gap: 10px;
    }
    
    .logo-icon {
        width: clamp(32px, 5vw, 36px);
        height: clamp(32px, 5vw, 36px);
    }
    
    .logo-icon svg {
        width: clamp(16px, 2.5vw, 18px);
        height: clamp(16px, 2.5vw, 18px);
    }
    
    .logo-text {
        font-size: clamp(13px, 2vw, 15px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .nav-section {
        padding: 0 12px;
        margin-bottom: 22px;
    }
    
    .nav-section-title {
        font-size: clamp(9px, 1.2vw, 10px);
        padding: 0 10px;
    }
    
    .nav-item {
        padding: 9px 11px;
        font-size: clamp(11px, 1.5vw, 12px);
        gap: 10px;
        min-height: 40px;
    }
    
    .nav-item svg {
        width: clamp(14px, 2vw, 16px);
        height: clamp(14px, 2vw, 16px);
        flex-shrink: 0;
    }
    
    .nav-item span {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        min-width: 0;
    }
    
    .content-header {
        padding: 12px 16px;
    }
    
    .hero-section {
        padding: 50px 20px 30px;
    }
    
    .hero-title {
        font-size: clamp(28px, 7vw, 40px);
        margin-bottom: 16px;
    }
    
    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .tools-section,
    .blog-section {
        padding: 30px 20px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .section-subtitle {
        font-size: 13px;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 16px;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tool-card {
        padding: 20px;
    }
    
    .tool-icon {
        width: 44px;
        height: 44px;
    }
    
    .tool-card h3 {
        font-size: 16px;
    }
    
    .tool-card p {
        font-size: 12px;
    }
    
    .content-footer {
        padding: 24px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 16px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }
    
    .modal {
        padding: 16px;
    }
    
    .modal-content {
        max-width: 100%;
        max-height: 95vh;
        padding: 20px;
    }
    
    .modal-close {
        top: 12px;
        right: 12px;
        width: 32px;
        height: 32px;
    }
    
    .tool-ui {
        padding: 20px;
    }
    
    .tool-ui h2 {
        font-size: 24px;
    }
    
    .drop-zone {
        padding: 40px 20px;
    }
    
    .drop-zone-icon {
        font-size: 48px;
    }
    
    .drop-zone h3 {
        font-size: 16px;
    }
    
    .drop-zone p {
        font-size: 13px;
    }
    
    .file-item {
        padding: 12px 16px;
    }
    
    .options-panel {
        padding: 20px;
    }
    
    .option-row {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .option-row label {
        min-width: auto;
        margin-bottom: 8px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn-process {
        width: 100%;
    }
    
    .sidebar-toggle {
        top: 12px;
        left: 12px;
        width: 40px;
        height: 40px;
    }
    
    .sidebar-header {
        padding: 20px 16px 24px;
    }
    
    .logo-text {
        font-size: 16px;
    }
    
    .nav-item {
        padding: 12px 14px;
        font-size: 13px;
    }
}

/* Small phones (480px - 600px) */
@media (max-width: 600px) {
    body {
        font-size: 13px;
    }
    
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(140px, 30vw, 180px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(140px, 30vw, 180px);
        max-width: calc(100vw - clamp(140px, 30vw, 180px));
        width: calc(100vw - clamp(140px, 30vw, 180px));
    }
    
    .sidebar-header {
        padding: 14px 10px 18px;
    }
    
    .logo {
        gap: 8px;
    }
    
    .logo-icon {
        width: clamp(28px, 5vw, 32px);
        height: clamp(28px, 5vw, 32px);
    }
    
    .logo-icon svg {
        width: clamp(14px, 2.5vw, 16px);
        height: clamp(14px, 2.5vw, 16px);
    }
    
    .logo-text {
        font-size: clamp(12px, 2vw, 13px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
    }
    
    .sidebar-nav {
        padding: 16px 0;
    }
    
    .nav-section {
        padding: 0 10px;
        margin-bottom: 20px;
    }
    
    .nav-section-title {
        font-size: clamp(8px, 1.2vw, 9px);
        padding: 0 8px;
        margin-bottom: 10px;
        letter-spacing: 1px;
    }
    
    .nav-item {
        padding: 8px 10px;
        font-size: clamp(10px, 1.4vw, 11px);
        gap: 8px;
        min-height: 38px;
    }
    
    .nav-item svg {
        width: clamp(12px, 2vw, 14px);
        height: clamp(12px, 2vw, 14px);
        flex-shrink: 0;
    }
    
    .nav-item span {
        font-size: clamp(10px, 1.4vw, 11px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        min-width: 0;
    }
    
    .content-header {
        padding: 10px 12px;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .btn-ghost {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .hero-section {
        padding: 40px 16px 30px;
    }
    
    .hero-badge {
        font-size: 11px;
        padding: 6px 12px;
        margin-bottom: 20px;
    }
    
    .hero-title {
        font-size: clamp(24px, 8vw, 32px);
        line-height: 1.2;
        margin-bottom: 12px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 20px;
    }
    
    .hero-actions {
        gap: 12px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 13px;
    }
    
    .tools-section,
    .blog-section {
        padding: 24px 16px;
    }
    
    .section-header {
        margin-bottom: 24px;
    }
    
    .section-title {
        font-size: 20px;
        margin-bottom: 6px;
    }
    
    .section-subtitle {
        font-size: 12px;
    }
    
    .tools-grid,
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .tool-card {
        padding: 18px;
    }
    
    .tool-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 16px;
    }
    
    .tool-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .tool-card h3 {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .tool-card p {
        font-size: 12px;
    }
    
    .blog-card-content {
        padding: 20px;
    }
    
    .blog-card-title {
        font-size: 16px;
    }
    
    .blog-card-excerpt {
        font-size: 12px;
    }
    
    .content-footer {
        padding: 20px 16px;
    }
    
    .footer-content p {
        font-size: 12px;
    }
    
    .modal {
        padding: 12px;
    }
    
    .modal-content {
        padding: 16px;
        border-radius: var(--radius-md);
    }
    
    .modal-close {
        top: 10px;
        right: 10px;
        width: 28px;
        height: 28px;
        font-size: 18px;
    }
    
    .tool-ui {
        padding: 16px;
    }
    
    .tool-ui h2 {
        font-size: 20px;
        margin-bottom: 6px;
    }
    
    .tool-ui .tool-desc {
        font-size: 13px;
        margin-bottom: 24px;
    }
    
    .drop-zone {
        padding: 30px 16px;
    }
    
    .drop-zone-icon {
        font-size: 40px;
        margin-bottom: 16px;
    }
    
    .drop-zone h3 {
        font-size: 15px;
        margin-bottom: 6px;
    }
    
    .drop-zone p {
        font-size: 12px;
    }
    
    .file-list {
        gap: 8px;
    }
    
    .file-item {
        padding: 10px 12px;
    }
    
    .file-icon {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
    
    .file-name {
        font-size: 13px;
    }
    
    .file-size {
        font-size: 11px;
    }
    
    .options-panel {
        padding: 16px;
    }
    
    .options-panel h4 {
        font-size: 13px;
        margin-bottom: 16px;
    }
    
    .option-group {
        gap: 12px;
    }
    
    .option-row {
        gap: 10px;
    }
    
    .option-row label {
        font-size: 12px;
    }
    
    .option-row input[type="text"],
    .option-row input[type="number"],
    .option-row input[type="password"],
    .option-row select {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .action-buttons {
        gap: 10px;
    }
    
    .btn-process {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .progress-container {
        margin-top: 20px;
    }
    
    .progress-text {
        font-size: 12px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
        margin-top: 32px;
        padding-top: 24px;
    }
    
    .stat-value {
        font-size: 28px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .sidebar-toggle {
        display: none;
    }
    
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(120px, 28vw, 160px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(120px, 28vw, 160px);
        max-width: calc(100vw - clamp(120px, 28vw, 160px));
        width: calc(100vw - clamp(120px, 28vw, 160px));
    }
    
    .sidebar-header {
        padding: 12px 8px 16px;
    }
    
    .logo {
        gap: 6px;
        flex-wrap: wrap;
    }
    
    .logo-icon {
        width: clamp(26px, 5vw, 30px);
        height: clamp(26px, 5vw, 30px);
    }
    
    .logo-icon svg {
        width: clamp(13px, 2.5vw, 15px);
        height: clamp(13px, 2.5vw, 15px);
    }
    
    .logo-text {
        font-size: clamp(11px, 1.8vw, 13px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
        line-height: 1.2;
    }
    
    .sidebar-nav {
        padding: 14px 0;
    }
    
    .nav-section {
        padding: 0 8px;
        margin-bottom: 18px;
    }
    
    .nav-section-title {
        font-size: clamp(7px, 1vw, 8px);
        padding: 0 6px;
        margin-bottom: 8px;
        letter-spacing: 0.5px;
    }
    
    .nav-item {
        padding: 7px 8px;
        font-size: clamp(9px, 1.3vw, 10px);
        gap: 6px;
        min-height: 36px;
    }
    
    .nav-item svg {
        width: clamp(11px, 1.8vw, 13px);
        height: clamp(11px, 1.8vw, 13px);
        flex-shrink: 0;
    }
    
    .nav-item span {
        font-size: clamp(9px, 1.3vw, 10px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        min-width: 0;
    }
}

/* Very small phones (320px - 480px) */
@media (max-width: 480px) {
    body {
        font-size: 12px;
    }
    
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(100px, 25vw, 140px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(100px, 25vw, 140px);
        max-width: calc(100vw - clamp(100px, 25vw, 140px));
        width: calc(100vw - clamp(100px, 25vw, 140px));
    }
    
    .sidebar-header {
        padding: 10px 6px 14px;
    }
    
    .logo {
        gap: 5px;
        flex-direction: column;
        align-items: center;
    }
    
    .logo-icon {
        width: clamp(24px, 6vw, 28px);
        height: clamp(24px, 6vw, 28px);
    }
    
    .logo-icon svg {
        width: clamp(12px, 3vw, 14px);
        height: clamp(12px, 3vw, 14px);
    }
    
    .logo-text {
        font-size: clamp(10px, 1.6vw, 11px);
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
        line-height: 1.1;
    }
    
    .sidebar-nav {
        padding: 12px 0;
    }
    
    .nav-section {
        padding: 0 6px;
        margin-bottom: 16px;
    }
    
    .nav-section-title {
        font-size: clamp(6px, 0.9vw, 7px);
        padding: 0 4px;
        margin-bottom: 6px;
        letter-spacing: 0.3px;
    }
    
    .nav-item {
        padding: 6px 6px;
        font-size: clamp(8px, 1.2vw, 9px);
        gap: 5px;
        min-height: 34px;
        justify-content: flex-start;
    }
    
    .nav-item svg {
        width: clamp(10px, 1.6vw, 12px);
        height: clamp(10px, 1.6vw, 12px);
        flex-shrink: 0;
    }
    
    .nav-item span {
        font-size: clamp(8px, 1.2vw, 9px);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
        min-width: 0;
    }
    
    .content-header {
        padding: 8px 10px;
    }
    
    .hero-section {
        padding: 30px 12px 24px;
    }
    
    .hero-title {
        font-size: clamp(20px, 9vw, 28px);
    }
    
    .hero-subtitle {
        font-size: 13px;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 12px;
    }
    
    .btn svg {
        width: 16px;
        height: 16px;
    }
    
    .tools-section,
    .blog-section {
        padding: 20px 12px;
    }
    
    .section-title {
        font-size: 18px;
    }
    
    .tool-card {
        padding: 16px;
    }
    
    .tool-icon {
        width: 36px;
        height: 36px;
    }
    
    .tool-card h3 {
        font-size: 14px;
    }
    
    .modal-content {
        padding: 12px;
    }
    
    .tool-ui {
        padding: 12px;
    }
    
    .drop-zone {
        padding: 24px 12px;
    }
    
    .file-item {
        padding: 8px 10px;
    }
    
    .options-panel {
        padding: 12px;
    }
    
    .sidebar-toggle {
        display: none;
    }
    
    .sidebar {
        width: 140px;
    }
    
    .main-content {
        margin-left: 140px;
    }
    
    .sidebar-header {
        padding: 12px 8px 16px;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
    
    .logo-icon svg {
        width: 14px;
        height: 14px;
    }
    
    .logo-text {
        font-size: 11px;
    }
    
    .nav-section {
        padding: 0 8px;
        margin-bottom: 16px;
    }
    
    .nav-section-title {
        font-size: 8px;
        padding: 0 8px;
        margin-bottom: 8px;
    }
    
    .nav-item {
        padding: 6px 8px;
        font-size: 10px;
        gap: 6px;
    }
    
    .nav-item svg {
        width: 12px;
        height: 12px;
    }
    
    .nav-item span {
        font-size: 10px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

/* Very small screens (320px and below) */
@media (max-width: 320px) {
    .sidebar {
        width: 60px; /* Start collapsed */
    }
    
    .sidebar.open {
        width: clamp(90px, 22vw, 120px);
    }
    
    .sidebar.open ~ .main-content {
        margin-left: clamp(90px, 22vw, 120px);
        max-width: calc(100vw - clamp(90px, 22vw, 120px));
        width: calc(100vw - clamp(90px, 22vw, 120px));
    }
    
    .logo-text {
        font-size: 9px;
    }
    
    .nav-item span {
        display: none;
    }
    
    .nav-item {
        justify-content: center;
        padding: 8px 4px;
    }
    
    .nav-item svg {
        width: 16px;
        height: 16px;
    }
}

/* Landscape orientation adjustments */
@media (max-height: 500px) and (orientation: landscape) {
    .hero-section {
        padding: 30px 20px 20px;
    }
    
    .hero-title {
        font-size: 24px;
        margin-bottom: 8px;
    }
    
    .hero-subtitle {
        font-size: 13px;
        margin-bottom: 16px;
    }
    
    .hero-actions {
        gap: 8px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .sidebar-header {
        padding: 10px 8px 14px;
    }
    
    .sidebar-nav {
        padding: 10px 0;
    }
    
    .nav-section {
        margin-bottom: 12px;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .nav-item,
    .tool-card,
    .blog-card,
    .btn {
        min-height: 44px;
    }
    
    .nav-item {
        min-height: 44px;
        padding: 10px 12px;
    }
    
    .file-remove,
    .merge-file-delete,
    .organize-page-delete {
        min-width: 44px;
        min-height: 44px;
    }
    
    .modal-close {
        min-width: 44px;
        min-height: 44px;
    }
    
    .sidebar-toggle {
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Better touch targets for sidebar on mobile */
    .sidebar .nav-item {
        touch-action: manipulation;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .tool-card,
    .blog-card {
        border-width: 0.5px;
    }
}

/* Hamburger Menu Button (Top Left Corner) */
/* Hamburger Menu Button - Inside Sidebar Header */
.sidebar-header {
    position: relative;
}

.hamburger-menu-btn {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
    touch-action: manipulation;
    padding: 0;
    margin-bottom: 8px;
}

/* Perfect centering for hamburger icon */
.hamburger-menu-btn svg,
.hamburger-menu-btn .hamburger-icon {
    width: 20px;
    height: 20px;
    margin: 0;
    padding: 0;
    display: block;
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

/* Show hamburger when sidebar is collapsed - at the very top */
.sidebar.collapsed .hamburger-menu-btn {
    display: flex !important;
    position: relative;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    margin: 0 0 8px 0;
    order: -1; /* Ensure it's at the top */
}

/* Hide hamburger when sidebar is open */
.sidebar.open .hamburger-menu-btn {
    display: none !important;
}

.hamburger-menu-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    box-shadow: var(--glow-primary);
}

.sidebar.collapsed .hamburger-menu-btn:hover {
    transform: translateX(-50%) scale(1.05);
}

.hamburger-menu-btn:active {
    transform: translateX(-50%) scale(0.95);
}

.sidebar.open .hamburger-menu-btn:active {
    transform: scale(0.95);
}

.hamburger-menu-btn:hover svg,
.hamburger-menu-btn:hover .hamburger-icon {
    transform: rotate(90deg);
    transition: transform var(--transition-fast);
}

/* Perfect alignment for hamburger lines within the box - centered */
.hamburger-icon {
    display: block;
    margin: 0 auto;
}

.hamburger-icon line {
    transition: all var(--transition-fast);
    stroke-linecap: round;
}

/* Hamburger button visibility is handled above in .sidebar.collapsed/.open rules */

/* Mobile sidebar toggle - hidden since sidebar is always visible */
.sidebar-toggle {
    display: none !important;
}

/* File list sortable */
.file-list.sortable .file-item {
    cursor: grab;
}

.file-list.sortable .file-item:active {
    cursor: grabbing;
}

.file-item.dragging {
    opacity: 0.5;
}

/* Preview */
.preview-container {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: none;
}

.preview-container.active {
    display: block;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 16px;
}

.preview-page {
    aspect-ratio: 3/4;
    background: white;
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.preview-page:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.preview-page canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.preview-page img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.preview-page-number {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.preview-more {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card-solid);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.preview-header h4 {
    color: var(--text-primary);
    margin: 0;
}

.preview-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Selectable preview pages for split tool */
.preview-page.selectable {
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.preview-page.selectable:hover {
    border-color: var(--accent-primary);
    transform: scale(1.02);
}

.preview-page.selectable.selected {
    border-color: var(--accent-green);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.preview-page.selectable.selected .preview-zoom-icon {
    opacity: 1;
    background: var(--accent-green);
    color: white;
}

.preview-page.selectable .preview-zoom-icon {
    font-size: 18px;
    padding: 6px 10px;
}

.preview-zoom-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    background: rgba(0, 0, 0, 0.6);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
}

.preview-page:hover .preview-zoom-icon {
    opacity: 1;
}

/* Preview Lightbox */
.preview-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.preview-lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.lightbox-close:hover {
    background: var(--accent-red);
    color: white;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img,
.lightbox-content canvas {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border: none;
    background: var(--bg-card);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: var(--accent-primary);
    color: white;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-info {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Floating elements animation */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(2deg); }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* Gradient text utility */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glass effect utility */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
}

/* ============================================= */
/* Split PDF Tool Custom UI */
/* ============================================= */

.split-ui {
    max-width: 700px;
    margin: 0 auto;
}

.split-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.split-header svg {
    color: var(--accent-primary);
}

.split-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.split-file-info {
    margin-bottom: 24px;
}

.split-file-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
}

.split-file-icon {
    font-size: 28px;
    background: var(--bg-secondary);
    padding: 12px;
    border-radius: var(--radius-sm);
}

.split-file-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.split-file-details strong {
    color: var(--text-primary);
    font-size: 15px;
}

.split-file-details span {
    color: var(--text-secondary);
    font-size: 13px;
}

.split-file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.split-file-remove:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

.split-options {
    margin-bottom: 24px;
}

.split-label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
}

.split-method-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.split-method-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.split-method-card:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
}

.split-method-card.active {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.split-method-card strong {
    display: block;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 4px;
}

.split-method-card.active strong {
    color: var(--accent-primary);
}

.split-method-card span {
    color: var(--text-secondary);
    font-size: 12px;
}

.split-range-input {
    margin-top: 20px;
}

.split-range-input input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    margin-top: 8px;
    transition: all var(--transition-fast);
}

.split-range-input input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.split-range-input input::placeholder {
    color: var(--text-muted);
}

.split-hint {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 8px;
}

.btn-split {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-split:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.btn-split:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-split svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 640px) {
    .split-ui {
        padding: 0;
    }
    
    .split-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .split-file-card {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .split-method-cards {
        grid-template-columns: 1fr;
    }
    
    .split-range-input input {
        font-size: 14px;
        padding: 12px 14px;
    }
    
    .btn-split {
        padding: 14px 20px;
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .split-method-cards {
        grid-template-columns: 1fr;
    }
    
    .split-file-card {
        padding: 12px 16px;
    }
    
    .split-range-input input {
        font-size: 13px;
    }
}

/* ============================================= */
/* Merge PDF Tool Custom UI */
/* ============================================= */

.merge-ui {
    max-width: 900px;
    margin: 0 auto;
}

.merge-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.merge-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.merge-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition-fast);
}

.merge-close-btn:hover {
    color: var(--text-primary);
}

.merge-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
}

.merge-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.merge-instruction {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

/* Merge File List */
.merge-file-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.merge-file-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: grab;
    transition: all var(--transition-fast);
}

.merge-file-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card-hover);
}

.merge-file-item.dragging {
    opacity: 0.5;
    border-color: var(--accent-primary);
}

.merge-file-item.drag-over {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
}

.merge-file-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.merge-file-drag {
    color: var(--text-muted);
    flex-shrink: 0;
}

.merge-file-name {
    flex: 1;
    color: var(--text-primary);
    font-size: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.merge-file-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.merge-file-delete:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

/* Merge Action Buttons */
.merge-action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.btn-merge-organize {
    padding: 16px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.btn-merge-organize:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.btn-merge-quick {
    padding: 16px 24px;
    background: #10b981;
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.btn-merge-quick:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
}

/* Merge Pages View */
.merge-pages-view {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.merge-pages-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.merge-pages-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.merge-pages-info strong {
    color: var(--text-primary);
    font-size: 18px;
}

.merge-pages-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.merge-pages-actions {
    display: flex;
    gap: 12px;
}

.btn-merge-final {
    padding: 12px 20px;
    background: #10b981;
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-merge-final:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
}

/* Merge Pages Grid */
.merge-pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.merge-page-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: grab;
    transition: all var(--transition-fast);
}

.merge-page-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.merge-page-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.merge-page-card.drag-over {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
}

.merge-page-filename {
    padding: 8px 10px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 11px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.merge-page-preview {
    padding: 10px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    transition: transform var(--transition-fast);
}

.merge-page-preview canvas {
    max-width: 100%;
    max-height: 160px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.merge-page-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-secondary);
}

.merge-page-number {
    color: var(--text-secondary);
    font-size: 13px;
}

.merge-page-actions {
    display: flex;
    gap: 8px;
}

.merge-page-rotate,
.merge-page-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.merge-page-rotate:hover {
    color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.merge-page-delete:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

@media (max-width: 768px) {
    .merge-ui {
        padding: 0;
    }
    
    .merge-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .merge-drop-zone {
        padding: 40px 20px;
    }
    
    .merge-file-item {
        padding: 12px 16px;
    }
    
    .merge-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 640px) {
    .merge-action-buttons {
        grid-template-columns: 1fr;
    }
    
    .merge-pages-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .merge-pages-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .merge-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .merge-file-item {
        padding: 10px 12px;
    }
    
    .merge-file-number {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .merge-drop-zone {
        padding: 30px 16px;
    }
    
    .merge-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

/* ============================================= */
/* Compress PDF Tool Custom UI */
/* ============================================= */

.compress-ui {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.compress-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.compress-header-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.compress-header-icon svg {
    width: 24px;
    height: 24px;
}

.compress-title {
    font-size: 28px;
    color: var(--text-primary);
    margin: 0;
    font-weight: 700;
}

.compress-title span {
    color: var(--accent-primary);
}

.compress-drop-zone {
    border: 3px dashed var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: 50px 40px;
    background: var(--bg-card);
    margin-bottom: 24px;
    transition: all var(--transition-fast);
}

.compress-drop-zone:hover {
    background: rgba(16, 185, 129, 0.05);
    border-color: var(--accent-secondary);
}

.compress-drop-text {
    color: var(--text-primary);
    font-size: 18px;
    margin-bottom: 20px;
}

.btn-compress-select {
    padding: 14px 32px;
    background: #059669;
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-compress-select:hover {
    background: #047857;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 148, 136, 0.3);
}

.compress-file-list {
    margin-bottom: 24px;
}

.compress-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    gap: 16px;
}

.compress-file-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.compress-file-icon-pdf {
    width: 40px;
    height: 40px;
    background: #10b981;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.compress-file-icon-pdf svg {
    width: 20px;
    height: 20px;
}

.compress-file-details {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    flex: 1;
}

.compress-file-name {
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
}

.compress-file-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.compress-file-original {
    color: var(--text-secondary);
    font-size: 13px;
}

.compress-file-status {
    color: #10b981;
    font-size: 13px;
    font-weight: 500;
}

.compress-file-remove {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.compress-file-remove:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

.compress-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.compress-size-input {
    display: flex;
    align-items: center;
    gap: 8px;
}

.compress-size-input label {
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
}

.compress-size-input input {
    width: 100px;
    padding: 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 15px;
    text-align: center;
}

.compress-size-input input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.compress-size-unit {
    padding: 12px 16px;
    background: #059669;
    color: white;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.btn-compress-download {
    width: 100%;
    padding: 16px 32px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: 24px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-compress-download:hover:not(:disabled) {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-compress-download:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.compress-note {
    color: #059669;
    font-size: 14px;
    margin-top: 16px;
}

@media (max-width: 768px) {
    .compress-ui {
        padding: 0;
    }
    
    .compress-drop-zone {
        padding: 40px 24px;
    }
    
    .compress-file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .compress-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .compress-size-input {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 480px) {
    .compress-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .compress-title {
        font-size: 20px;
    }
    
    .compress-drop-zone {
        padding: 30px 16px;
    }
    
    .compress-file-item {
        padding: 12px 16px;
    }
    
    .compress-size-input input {
        width: 80px;
        font-size: 14px;
    }
}

/* ============================================= */
/* Edit & Sign PDF Tool Custom UI (E-Sign) */
/* ============================================= */

.edit-ui {
    max-width: 100%;
    margin: 0;
}

.edit-container {
    display: flex;
    gap: 0;
    min-height: 600px;
    position: relative;
}

.edit-main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.edit-drop-zone {
    flex: 1;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    background: var(--bg-card);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}

.edit-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.edit-drop-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: var(--text-primary);
}

.edit-drop-content svg {
    color: var(--text-secondary);
}

.edit-drop-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.edit-drop-content p {
    color: var(--text-secondary);
    font-size: 16px;
    margin: 0;
}

.btn-edit-select {
    padding: 12px 32px;
    background: var(--accent-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: 8px;
}

.btn-edit-select:hover {
    background: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.edit-pdf-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #e5e5e5;
    padding: 20px;
    overflow-y: auto;
    gap: 20px;
    justify-content: flex-start;
}

.edit-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-primary);
    gap: 16px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.edit-loading p {
    font-size: 16px;
    color: var(--text-secondary);
    margin: 0;
}

.edit-error {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--accent-red);
    text-align: center;
}

.edit-error p {
    font-size: 16px;
    margin: 0;
}

.edit-pdf-page {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.edit-pdf-canvas {
    max-width: 100%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    background: white;
    cursor: crosshair;
}

.e-sign-sidebar {
    width: 320px;
    background: var(--bg-sidebar);
    border-left: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
}

.e-sign-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.e-sign-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.e-sign-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.e-sign-close:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.e-sign-description {
    position: relative;
    padding: 12px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.e-sign-info-icon {
    position: absolute;
    top: 12px;
    right: 12px;
    color: var(--text-muted);
    cursor: help;
}

.e-sign-section h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 8px 0;
}

.e-sign-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0 0 12px 0;
    font-style: italic;
}

.e-sign-tools {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.e-sign-tool-btn {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.e-sign-tool-btn svg {
    width: 20px;
    height: 20px;
}

.e-sign-tool-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.e-sign-tool-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.e-sign-signature-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.e-sign-signature-field {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    padding: 16px;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
}

.e-sign-signature-field.dragover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
    border-style: dashed;
}

.e-sign-signature-display {
    flex: 1;
    font-family: 'Dancing Script', cursive, sans-serif;
    font-size: 20px;
    color: var(--text-primary);
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.e-sign-signature-display img {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
}

.e-sign-placeholder {
    color: var(--text-muted);
    font-style: italic;
    font-family: var(--font-main);
    font-size: 14px;
}

.e-sign-edit-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.e-sign-edit-btn svg {
    width: 16px;
    height: 16px;
}

.e-sign-edit-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.e-sign-add-initials {
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.e-sign-add-initials svg {
    width: 16px;
    height: 16px;
}

.e-sign-add-initials:hover {
    background: var(--bg-card);
    border-color: var(--accent-primary);
}

.btn-e-sign-save {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 12px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-e-sign-save svg {
    width: 18px;
    height: 18px;
}

.btn-e-sign-save:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

@media (max-width: 1024px) {
    .edit-container {
        flex-direction: column;
    }
    
    .e-sign-sidebar {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border-color);
        max-height: 50vh;
    }
    
    .edit-drop-zone {
        min-height: 400px;
        padding: 60px 30px;
    }
    
    .edit-pdf-viewer {
        padding: 16px;
    }
}

@media (max-width: 768px) {
    .edit-drop-zone {
        padding: 40px 20px;
        min-height: 300px;
    }
    
    .edit-drop-content h3 {
        font-size: 20px;
    }
    
    .edit-drop-content p {
        font-size: 14px;
    }
    
    .e-sign-sidebar {
        padding: 20px;
        max-height: 400px;
    }
    
    .e-sign-header h3 {
        font-size: 18px;
    }
    
    .e-sign-tools {
        gap: 6px;
    }
    
    .e-sign-tool-btn {
        width: 40px;
        height: 40px;
    }
    
    .e-sign-signature-field {
        padding: 12px;
        min-height: 60px;
    }
}

@media (max-width: 480px) {
    .edit-drop-zone {
        padding: 30px 16px;
        min-height: 250px;
    }
    
    .edit-drop-content h3 {
        font-size: 18px;
    }
    
    .e-sign-sidebar {
        padding: 16px;
    }
    
    .e-sign-tool-btn {
        width: 36px;
        height: 36px;
    }
    
    .e-sign-tool-btn svg {
        width: 18px;
        height: 18px;
    }
}

/* ============================================= */
/* Organize PDF Tool Custom UI */
/* ============================================= */

.organize-ui {
    max-width: 1100px;
    margin: 0 auto;
}

.organize-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.organize-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.organize-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    transition: color var(--transition-fast);
}

.organize-close-btn:hover {
    color: var(--text-primary);
}

.organize-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
}

.organize-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.organize-content {
    animation: fadeIn 0.3s ease;
}

.organize-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.organize-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.organize-info strong {
    color: var(--text-primary);
    font-size: 18px;
}

.organize-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.organize-actions {
    display: flex;
    gap: 12px;
}

.btn-organize-save {
    padding: 12px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-organize-save:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

/* Organize Pages Grid */
.organize-pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.organize-page-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: grab;
    transition: all var(--transition-fast);
}

.organize-page-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.organize-page-card.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.organize-page-card.drag-over {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
}

.organize-page-preview {
    padding: 12px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    transition: transform var(--transition-fast);
}

.organize-page-preview canvas {
    max-width: 100%;
    max-height: 180px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.organize-page-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-secondary);
}

.organize-page-number {
    color: var(--text-secondary);
    font-size: 13px;
}

.organize-page-actions {
    display: flex;
    gap: 8px;
}

.organize-page-rotate,
.organize-page-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.organize-page-rotate:hover {
    color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.organize-page-delete:hover {
    color: var(--accent-red);
    background: rgba(16, 185, 129, 0.1);
}

@media (max-width: 768px) {
    .organize-ui {
        padding: 0;
    }
    
    .organize-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .organize-drop-zone {
        padding: 50px 30px;
    }
    
    .organize-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 640px) {
    .organize-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .organize-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .organize-actions .btn {
        width: 100%;
    }
    
    .organize-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .organize-drop-zone {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .organize-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .organize-drop-zone {
        padding: 30px 16px;
    }
}

/* ============================================= */
/* Rotate PDF Tool Custom UI */
/* ============================================= */

.rotate-ui {
    max-width: 1100px;
    margin: 0 auto;
}

.rotate-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.rotate-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.rotate-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    transition: color var(--transition-fast);
}

.rotate-close-btn:hover {
    color: var(--text-primary);
}

.rotate-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
}

.rotate-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.rotate-content {
    animation: fadeIn 0.3s ease;
}

.rotate-toolbar {
    margin-bottom: 24px;
}

.rotate-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
}

.rotate-info strong {
    color: var(--text-primary);
    font-size: 18px;
}

.rotate-hint {
    color: var(--text-secondary);
    font-size: 13px;
}

.rotate-bulk-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-rotate-bulk {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-rotate-bulk:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-primary);
}

/* Rotate Pages Grid */
.rotate-pages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.rotate-page-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.rotate-page-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.2);
}

.rotate-page-preview {
    padding: 12px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    overflow: hidden;
}

.rotate-page-canvas-wrapper {
    transition: transform 0.3s ease;
}

.rotate-page-canvas-wrapper canvas {
    max-width: 100%;
    max-height: 180px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.rotate-page-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-secondary);
}

.rotate-page-number {
    color: var(--text-secondary);
    font-size: 13px;
}

.rotate-page-angle {
    color: var(--accent-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 4px;
}

/* Download Section */
.rotate-download-section {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.rotate-preview-note {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.btn-rotate-download {
    padding: 16px 40px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.btn-rotate-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

@media (max-width: 768px) {
    .rotate-ui {
        padding: 0;
    }
    
    .rotate-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .rotate-drop-zone {
        padding: 50px 30px;
    }
    
    .rotate-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}

@media (max-width: 640px) {
    .rotate-bulk-actions {
        flex-direction: column;
    }
    
    .btn-rotate-bulk {
        justify-content: center;
        width: 100%;
    }
    
    .rotate-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .rotate-drop-zone {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .rotate-pages-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .rotate-drop-zone {
        padding: 30px 16px;
    }
}

/* ============================================= */
/* Extract Text Tool Custom UI */
/* ============================================= */

.extract-ui {
    max-width: 1000px;
    margin: 0 auto;
}

.extract-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.extract-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.extract-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    transition: color var(--transition-fast);
}

.extract-close-btn:hover {
    color: var(--text-primary);
}

.extract-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.btn-extract-select {
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-extract-select:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.extract-note {
    color: var(--text-muted);
    font-size: 13px;
    flex: 1;
}

.extract-action-buttons {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.btn-extract-copy {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-extract-copy:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.btn-extract-download {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-extract-download:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.1);
}

.extract-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
}

.extract-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.extract-output {
    background: #0d0d12;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-height: 500px;
    overflow-y: auto;
    animation: fadeIn 0.3s ease;
}

.extract-output pre {
    padding: 24px;
    margin: 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.extract-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.extract-loading p {
    color: var(--text-secondary);
    margin-top: 16px;
}

.extract-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scrollbar styling for extract output */
.extract-output::-webkit-scrollbar {
    width: 8px;
}

.extract-output::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.extract-output::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.extract-output::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

@media (max-width: 768px) {
    .extract-ui {
        padding: 0;
    }
    
    .extract-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .extract-drop-zone {
        padding: 50px 30px;
    }
    
    .extract-output {
        max-height: 400px;
    }
}

@media (max-width: 640px) {
    .extract-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .extract-action-buttons {
        margin-left: 0;
        width: 100%;
        flex-direction: column;
    }
    
    .btn-extract-copy,
    .btn-extract-download {
        width: 100%;
    }
    
    .extract-drop-zone {
        padding: 40px 20px;
    }
    
    .extract-output {
        max-height: 300px;
    }
    
    .extract-output pre {
        padding: 16px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .extract-drop-zone {
        padding: 30px 16px;
    }
    
    .extract-output {
        max-height: 250px;
    }
}

/* ============================================= */
/* Images to PDF Tool Custom UI */
/* ============================================= */

.imagetopdf-ui {
    max-width: 1100px;
    margin: 0 auto;
}

.imagetopdf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.imagetopdf-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.imagetopdf-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    transition: color var(--transition-fast);
}

.imagetopdf-close-btn:hover {
    color: var(--text-primary);
}

.imagetopdf-drop-zone {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
    margin-bottom: 24px;
}

.imagetopdf-drop-zone:hover {
    border-color: var(--accent-green);
    background: rgba(16, 185, 129, 0.05);
}

.imagetopdf-icon {
    width: 64px;
    height: 64px;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.imagetopdf-icon svg {
    color: var(--accent-green);
}

.imagetopdf-drop-zone h3 {
    color: var(--text-primary);
    font-size: 18px;
    margin-bottom: 8px;
}

.imagetopdf-drop-zone p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* Images Grid */
.imagetopdf-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.imagetopdf-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1;
    transition: all var(--transition-fast);
}

.imagetopdf-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
}

.imagetopdf-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.imagetopdf-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 24px;
    height: 24px;
    background: var(--accent-green);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.imagetopdf-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-fast);
}

.imagetopdf-card:hover .imagetopdf-remove {
    opacity: 1;
}

.imagetopdf-remove:hover {
    background: var(--accent-red);
}

/* Footer */
.imagetopdf-footer {
    display: flex;
    justify-content: flex-end;
}

.btn-imagetopdf-convert {
    padding: 14px 28px;
    background: var(--accent-green);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.btn-imagetopdf-convert:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.btn-imagetopdf-convert:disabled {
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: not-allowed;
    border: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .imagetopdf-ui {
        padding: 0;
    }
    
    .imagetopdf-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .imagetopdf-drop-zone {
        padding: 50px 30px;
    }
    
    .imagetopdf-images-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}

@media (max-width: 640px) {
    .imagetopdf-images-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    
    .imagetopdf-footer {
        justify-content: stretch;
    }
    
    .btn-imagetopdf-convert {
        width: 100%;
        justify-content: center;
    }
    
    .imagetopdf-drop-zone {
        padding: 40px 20px;
    }
}

@media (max-width: 480px) {
    .imagetopdf-images-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .imagetopdf-drop-zone {
        padding: 30px 16px;
    }
}

/* ============================================= */
/* PDF to JPG Tool Custom UI */
/* ============================================= */

.pdftojpg-ui {
    max-width: 900px;
    margin: 0 auto;
}

.pdftojpg-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.pdftojpg-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.pdftojpg-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    padding: 8px 12px;
    transition: color var(--transition-fast);
}

.pdftojpg-close-btn:hover {
    color: var(--text-primary);
}

.pdftojpg-title-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.pdftojpg-title-icon {
    width: 48px;
    height: 48px;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdftojpg-title-icon svg {
    color: var(--accent-primary);
}

.pdftojpg-title-section h3 {
    margin: 0;
    font-size: 24px;
    color: var(--text-primary);
}

.pdftojpg-drop-zone {
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-card);
    margin-bottom: 24px;
}

.pdftojpg-drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(16, 185, 129, 0.05);
}

.pdftojpg-upload-icon {
    width: 64px;
    height: 64px;
    background: rgba(16, 185, 129, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.pdftojpg-upload-icon svg {
    color: var(--accent-primary);
}

.pdftojpg-drop-zone h4 {
    color: var(--text-primary);
    font-size: 18px;
    margin-bottom: 8px;
}

.pdftojpg-drop-zone p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* Quality Guide */
.pdftojpg-quality-guide {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 24px;
}

.pdftojpg-guide-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.pdftojpg-guide-header svg {
    color: var(--accent-primary);
}

.pdftojpg-guide-header h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 16px;
}

.pdftojpg-guide-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pdftojpg-guide-list li {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.pdftojpg-guide-list strong {
    color: var(--text-primary);
}

/* Options */
.pdftojpg-options {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    animation: fadeIn 0.3s ease;
}

.pdftojpg-option-group {
    margin-bottom: 20px;
}

.pdftojpg-label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
}

.pdftojpg-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pdftojpg-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.pdftojpg-format-buttons {
    display: flex;
    gap: 12px;
}

.pdftojpg-format-btn {
    flex: 1;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pdftojpg-format-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.pdftojpg-format-btn.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-pdftojpg-convert {
    width: 100%;
    padding: 14px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
    margin-top: 20px;
}

.btn-pdftojpg-convert:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

@media (max-width: 768px) {
    .pdftojpg-ui {
        padding: 0;
    }
    
    .pdftojpg-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .pdftojpg-drop-zone {
        padding: 50px 30px;
    }
    
    .pdftojpg-quality-guide {
        padding: 16px 20px;
    }
    
    .pdftojpg-options {
        padding: 20px;
    }
}

@media (max-width: 640px) {
    .pdftojpg-format-buttons {
        flex-direction: column;
    }
    
    .pdftojpg-drop-zone {
        padding: 40px 20px;
    }
    
    .pdftojpg-title-section {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .pdftojpg-drop-zone {
        padding: 30px 16px;
    }
    
    .pdftojpg-quality-guide {
        padding: 12px 16px;
    }
    
    .pdftojpg-options {
        padding: 16px;
    }
}