/**
 * PDF Tools - Ana Stil Dosyası
 * Modern, responsive ve erişilebilir tasarım
 */

/* ===== CSS Variables ===== */
:root {
    /* Renkler */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Arka planlar */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    /* Metin */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Bordürler */
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    
    /* Gölgeler */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Container */
    --container-max: 1200px;
    --content-max: 800px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* ===== Accessibility - Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
}

/* ===== Layout ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    overflow: visible;
}

.content-container {
    max-width: var(--content-max);
    margin: 0 auto;
}

/* ===== Header ===== */
.header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-text {
    font-weight: 500;
    font-size: 1.7rem;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
}

.logo-icon {
    font-size: 2rem;
    display: flex;
    align-items: center;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.nav a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* Desktop Navigation Links */
.nav-links-desktop {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links-desktop > a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.nav-links-desktop > a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
}

.nav-links-desktop > a svg,
.nav-links-desktop .nav-dropdown-btn svg:first-child {
    width: 22px;
    height: 22px;
}

.nav-links-desktop > a span,
.nav-links-desktop .nav-dropdown-btn span {
    font-size: 0.7rem;
    font-weight: 500;
    white-space: nowrap;
}

/* Desktop All Tools Dropdown */
.nav-dropdown-desktop {
    position: relative;
}

.nav-dropdown-desktop .nav-dropdown-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 0.5rem 0.75rem;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-dropdown-desktop .nav-dropdown-btn:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

.nav-dropdown-desktop .nav-dropdown-btn svg[data-lucide="chevron-down"] {
    display: none;
}

.nav-dropdown-desktop .nav-dropdown-content,
.nav-dropdown-content-desktop {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 220px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    z-index: 1000;
    margin-top: 4px;
}

.nav-dropdown-desktop:hover .nav-dropdown-content {
    display: block;
}

.nav-dropdown-desktop .nav-dropdown-content a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-size: 0.9rem;
}

.nav-dropdown-desktop .nav-dropdown-content a svg,
.nav-dropdown-desktop .nav-dropdown-content a i {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.nav-dropdown-desktop .nav-dropdown-content a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* Navigation Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.nav-dropdown-btn:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-sm);
    z-index: 1000;
    margin-top: 4px;
}

.nav-dropdown:hover .nav-dropdown-content,
.nav-dropdown-content.show {
    display: block;
}

.nav-dropdown-content a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-dropdown-content a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* Desktop: Hide dropdown, show links */
@media (min-width: 769px) {
    .nav-dropdown:not(.nav-dropdown-desktop) {
        display: none;
    }
    
    .nav-dropdown-desktop {
        display: block;
    }
    
    .nav-links-desktop {
        display: flex;
    }
    
    .nav-privacy-link {
        display: none;
    }
    
    /* Hide mobile menu on desktop */
    .mobile-menu-left {
        display: none;
    }
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav {
        gap: var(--spacing-sm);
    }
    
    .nav > a.nav-privacy-link {
        display: none;
    }
    
    .nav-links-desktop {
        display: none;
    }
    
    /* Hide mobile menu in nav for desktop layout */
    .nav .nav-dropdown-mobile {
        display: none;
    }
    
    /* Show mobile menu on the left */
    .mobile-menu-left {
        display: block;
    }
    
    .nav-dropdown:not(.nav-dropdown-desktop) {
        display: block;
    }
    
    .mobile-menu-left .nav-dropdown-btn,
    .nav-dropdown-mobile .nav-dropdown-btn,
    .nav-dropdown:not(.nav-dropdown-desktop) .nav-dropdown-btn {
        position: relative;
        width: 44px;
        height: 44px;
        padding: 0;
        background: rgba(37, 99, 235, 0.1);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(37, 99, 235, 0.2);
        color: var(--primary-color);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
    }
    
    .mobile-menu-left .nav-dropdown-btn:hover,
    .nav-dropdown-mobile .nav-dropdown-btn:hover,
    .nav-dropdown:not(.nav-dropdown-desktop) .nav-dropdown-btn:hover {
        background: rgba(37, 99, 235, 0.15);
        border-color: rgba(37, 99, 235, 0.3);
        transform: scale(1.05);
    }
    
    .mobile-menu-left .nav-dropdown-btn svg,
    .nav-dropdown-mobile .nav-dropdown-btn svg,
    .nav-dropdown:not(.nav-dropdown-desktop) .nav-dropdown-btn svg {
        width: 22px !important;
        height: 22px !important;
    }
    
    /* Dark mode adjustments */
    [data-theme="dark"] .mobile-menu-left .nav-dropdown-btn,
    [data-theme="dark"] .nav-dropdown-mobile .nav-dropdown-btn,
    [data-theme="dark"] .nav-dropdown:not(.nav-dropdown-desktop) .nav-dropdown-btn {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.15);
        color: var(--text-primary);
    }
    
    [data-theme="dark"] .mobile-menu-left .nav-dropdown-btn:hover,
    [data-theme="dark"] .nav-dropdown-mobile .nav-dropdown-btn:hover,
    [data-theme="dark"] .nav-dropdown:not(.nav-dropdown-desktop) .nav-dropdown-btn:hover {
        background: rgba(255, 255, 255, 0.15);
        border-color: rgba(255, 255, 255, 0.25);
    }
    
    .nav-dropdown-content {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        height: 100dvh;
        max-height: none;
        margin-top: 0;
        border-radius: 0;
        border: none;
        padding: var(--spacing-lg);
        padding-top: 70px;
        padding-bottom: calc(env(safe-area-inset-bottom, 20px) + 60px);
        background: var(--bg-primary);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        animation: slideIn 0.3s ease;
        display: none;
    }
    
    .nav-dropdown-content.show {
        display: block;
    }
    
    .nav-dropdown:hover .nav-dropdown-content {
        display: none;
    }
    
    .nav-dropdown-content.show {
        display: block !important;
    }
    
    .nav-dropdown-content::before {
        content: 'PDF Tools';
        display: block;
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--primary-color);
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
        border-bottom: 2px solid var(--border-color);
    }
    
    .nav-dropdown-content a {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
        border-radius: var(--border-radius);
        margin-bottom: 2px;
    }
    
    .nav-dropdown-content a:hover,
    .nav-dropdown-content a:active {
        background: var(--primary-light);
        color: var(--primary-color);
    }
    
    /* Close button for mobile menu */
    .mobile-menu-close {
        position: fixed;
        top: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 44px;
        height: 44px;
        background: var(--bg-tertiary);
        border: none;
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1001;
        color: var(--text-primary);
        transition: all var(--transition-fast);
    }
    
    .mobile-menu-close:hover {
        background: var(--error-color);
        color: white;
    }
    
    /* Mobile menu footer */
    .mobile-menu-footer {
        margin-top: var(--spacing-xl);
        padding-top: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
    }
    
    .mobile-menu-footer a {
        color: var(--text-muted);
    }
    
    /* Hide desktop elements on mobile */
    .nav-dropdown-btn .btn-text,
    .nav-dropdown-btn .chevron-icon {
        display: none;
    }
    
    .nav-dropdown-btn .menu-icon {
        display: block;
    }
}

/* Desktop: hide menu icon, show text */
@media (min-width: 769px) {
    .nav-dropdown-btn .menu-icon {
        display: none;
    }
    
    .mobile-menu-close,
    .mobile-menu-footer {
        display: none;
    }
}

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

/* ===== Hero Section ===== */
.hero {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: var(--spacing-2xl) 0;
    text-align: center;
    overflow: hidden;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.hero-content {
    flex: 1;
    text-align: left;
}

.hero h1 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 0 var(--spacing-lg);
}

/* Hero Tools Icons */
.hero-tools {
    display: flex;
    gap: 1.5rem;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-tool-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 80px;
    height: 80px;
    padding: 0.75rem;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    cursor: default;
    transition: all 0.3s ease;
    animation: toolFloat 3s ease-in-out infinite;
}

.hero-tool-item:nth-child(1) { animation-delay: 0s; }
.hero-tool-item:nth-child(2) { animation-delay: 0.2s; }
.hero-tool-item:nth-child(3) { animation-delay: 0.4s; }
.hero-tool-item:nth-child(4) { animation-delay: 0.6s; }
.hero-tool-item:nth-child(5) { animation-delay: 0.8s; }

.hero-tool-item:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    transform: translateY(-5px) scale(1.05);
}

.hero-tool-item svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary-color);
    stroke-width: 2;
}

.hero-tool-item span {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 500;
}

@keyframes toolFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* Hero Animation - New Design */
.hero-animation {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    position: relative;
    min-height: 320px;
    padding-bottom: 20px;
}

/* Decorative Dots */
.hero-dots {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.dot {
    position: absolute;
    border-radius: 50%;
    animation: dotFloat 4s ease-in-out infinite;
}

.dot-1 {
    width: 12px;
    height: 12px;
    background: #22d3ee;
    top: 5%;
    right: 15%;
    animation-delay: 0s;
}

.dot-2 {
    width: 8px;
    height: 8px;
    background: #f97316;
    top: 20%;
    right: 5%;
    animation-delay: 0.5s;
}

.dot-3 {
    width: 10px;
    height: 10px;
    background: #a855f7;
    top: 10%;
    left: 10%;
    animation-delay: 1s;
}

.dot-4 {
    width: 6px;
    height: 6px;
    background: #fbbf24;
    bottom: 35%;
    right: 8%;
    animation-delay: 1.5s;
}

.dot-5 {
    width: 8px;
    height: 8px;
    background: #10b981;
    bottom: 40%;
    left: 5%;
    animation-delay: 2s;
}

@keyframes dotFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.8; }
    50% { transform: translateY(-8px) scale(1.2); opacity: 1; }
}

/* Folders */
.folder {
    position: absolute;
    bottom: 20px;
    width: 100px;
    height: 80px;
}

.folder-upload {
    left: 10%;
}

.folder-download {
    right: 10%;
}

.folder-tab {
    position: absolute;
    top: 0;
    left: 10px;
    width: 35px;
    height: 12px;
    border-radius: 6px 6px 0 0;
}

.folder-upload .folder-tab {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.folder-download .folder-tab {
    background: linear-gradient(135deg, #f97316, #ea580c);
}

.folder-body {
    position: absolute;
    top: 10px;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.folder-upload .folder-body {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
}

.folder-download .folder-body {
    background: linear-gradient(135deg, #fb923c, #f97316);
}

.folder-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.folder-icon svg {
    width: 20px;
    height: 20px;
    color: white;
    stroke-width: 2.5;
}

/* Mini docs inside folder */
.folder-docs {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 3px;
}

.mini-doc {
    width: 20px;
    height: 26px;
    background: white;
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
}

.mini-doc::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 4px;
    right: 4px;
    height: 3px;
    background: #ddd;
    border-radius: 2px;
}

.mini-doc::after {
    content: '';
    position: absolute;
    top: 11px;
    left: 4px;
    width: 8px;
    height: 2px;
    background: #eee;
    border-radius: 1px;
}

.folder-upload .mini-doc:nth-child(1) { transform: rotate(-8deg) translateY(5px); }
.folder-upload .mini-doc:nth-child(2) { transform: rotate(0deg) translateY(-2px); animation: docFloat 2s ease-in-out infinite; }
.folder-upload .mini-doc:nth-child(3) { transform: rotate(8deg) translateY(5px); }

.folder-download .mini-doc:nth-child(1) { transform: rotate(-5deg) translateY(3px); }
.folder-download .mini-doc:nth-child(2) { transform: rotate(5deg) translateY(3px); animation: docFloat 2s ease-in-out infinite 0.5s; }

@keyframes docFloat {
    0%, 100% { transform: translateY(-2px); }
    50% { transform: translateY(-10px); }
}

/* Flying Cards */
.flying-cards {
    position: absolute;
    width: 300px;
    height: 180px;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.arc-path {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.arc-line {
    stroke-dashoffset: 0;
    animation: arcDash 3s linear infinite;
}

@keyframes arcDash {
    to { stroke-dashoffset: -32; }
}

/* PDF Cards */
.pdf-card {
    position: absolute;
    background: white;
    border-radius: 10px;
    padding: 8px 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transform-origin: center;
}

.card-extract {
    left: 25%;
    top: 35%;
    transform: rotate(-15deg);
    animation: cardFloat1 3s ease-in-out infinite;
}

.card-compress {
    left: 50%;
    top: 5%;
    transform: translateX(-50%) rotate(0deg);
    animation: cardFloat2 3s ease-in-out infinite 0.5s;
}

.card-merge {
    right: 20%;
    top: 35%;
    transform: rotate(15deg);
    animation: cardFloat3 3s ease-in-out infinite 1s;
}

@keyframes cardFloat1 {
    0%, 100% { transform: rotate(-15deg) translateY(0); }
    50% { transform: rotate(-12deg) translateY(-12px); }
}

@keyframes cardFloat2 {
    0%, 100% { transform: translateX(-50%) rotate(0deg) translateY(0); }
    50% { transform: translateX(-50%) rotate(3deg) translateY(-15px); }
}

@keyframes cardFloat3 {
    0%, 100% { transform: rotate(15deg) translateY(0); }
    50% { transform: rotate(12deg) translateY(-12px); }
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-icon svg {
    width: 22px;
    height: 22px;
    stroke-width: 2;
}

.card-icon-red {
    background: #fef2f2;
}
.card-icon-red svg {
    color: #ef4444;
}

.card-icon-green {
    background: #ecfdf5;
}
.card-icon-green svg {
    color: #10b981;
}

.card-icon-blue {
    background: #eff6ff;
}
.card-icon-blue svg {
    color: #3b82f6;
}

.card-label {
    font-size: 11px;
    font-weight: 600;
    color: #374151;
    white-space: nowrap;
}

/* Stacked papers behind cards */
.pdf-card::before,
.pdf-card::after {
    content: '';
    position: absolute;
    background: #f8fafc;
    border-radius: 8px;
    z-index: -1;
}

.pdf-card::before {
    width: 100%;
    height: 100%;
    top: 4px;
    left: -4px;
    transform: rotate(-3deg);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.pdf-card::after {
    width: 100%;
    height: 100%;
    top: 8px;
    left: -8px;
    transform: rotate(-6deg);
    opacity: 0.7;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Ground line */
.ground-line {
    position: absolute;
    bottom: 15px;
    left: 5%;
    right: 5%;
    height: 2px;
    background: var(--border-color);
    border-radius: 1px;
}

/* Legacy - keep for compatibility */
.pdf-stack {
    display: none;
}

.pdf-page {
    display: none;
}

.pdf-header {
    width: 60%;
    height: 8px;
    background: linear-gradient(90deg, var(--primary-color), #7c3aed);
    border-radius: 4px;
    margin-bottom: 12px;
}

.pdf-line {
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    margin-bottom: 8px;
}

.pdf-line.short {
    width: 50%;
}

.pdf-line.medium {
    width: 75%;
}

/* Floating Icons */
.floating-icons {
    position: absolute;
    width: 140%;
    height: 140%;
    top: -20%;
    left: -20%;
    pointer-events: none;
    overflow: visible;
}

.float-icon {
    position: absolute;
    width: 36px;
    height: 36px;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.2);
    padding: 8px;
    border-radius: 50%;
    backdrop-filter: blur(4px);
    box-sizing: content-box;
}

.icon-1 {
    top: 5%;
    right: 0%;
    animation: floatIcon 3s ease-in-out infinite;
}

.icon-2 {
    top: 70%;
    right: -5%;
    animation: floatIcon 3s ease-in-out infinite 0.5s;
}

.icon-3 {
    bottom: 0%;
    left: 10%;
    animation: floatIcon 3s ease-in-out infinite 1s;
}

.icon-4 {
    top: 20%;
    left: -5%;
    animation: floatIcon 3s ease-in-out infinite 1.5s;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.1); }
}

/* Hero Responsive */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-animation {
        min-height: 260px;
        width: 100%;
        margin-top: var(--spacing-md);
    }
    
    .folder {
        width: 80px;
        height: 65px;
    }
    
    .folder-upload {
        left: 5%;
    }
    
    .folder-download {
        right: 5%;
    }
    
    .folder-tab {
        width: 28px;
        height: 10px;
    }
    
    .folder-icon {
        width: 28px;
        height: 28px;
    }
    
    .folder-icon svg {
        width: 16px;
        height: 16px;
    }
    
    .mini-doc {
        width: 16px;
        height: 20px;
    }
    
    .flying-cards {
        width: 240px;
        height: 140px;
    }
    
    .pdf-card {
        padding: 6px 10px;
    }
    
    .card-icon {
        width: 32px;
        height: 32px;
    }
    
    .card-icon svg {
        width: 18px;
        height: 18px;
    }
    
    .card-label {
        font-size: 10px;
    }
    
    .hero p {
        margin: 0 auto var(--spacing-lg);
    }
    
    .hero-tools {
        justify-content: center;
    }
    
    .floating-icons {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-animation {
        min-height: 220px;
    }
    
    .folder {
        width: 65px;
        height: 55px;
    }
    
    .folder-upload {
        left: 2%;
    }
    
    .folder-download {
        right: 2%;
    }
    
    .folder-docs {
        display: none;
    }
    
    .flying-cards {
        width: 200px;
        height: 120px;
    }
    
    .pdf-card::before,
    .pdf-card::after {
        display: none;
    }
    
    .card-extract {
        left: 15%;
    }
    
    .card-merge {
        right: 10%;
    }
    
    .dot {
        display: none;
    }
    
    .dot-1, .dot-2, .dot-3 {
        display: block;
    }
    
    .hero-tools {
        gap: 0.75rem;
    }
    
    .hero-tool-item {
        width: 65px;
        height: 65px;
        padding: 0.5rem;
    }
    
    .hero-tool-item svg {
        width: 22px;
        height: 22px;
    }
    
    .hero-tool-item span {
        font-size: 0.75rem;
    }
}

/* ===== Tools Grid ===== */
.tools-section {
    padding: var(--spacing-2xl) 0;
}

.why-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.tool-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow);
    transition: all var(--transition-normal);
    text-decoration: none;
    display: block;
    border: 1px solid transparent;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.tool-card:hover .tool-icon {
    animation: iconBounce 0.5s ease;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Tool Cards Staggered Entrance */
.tools-grid .tool-card {
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

.tools-grid .tool-card:nth-child(1) { animation-delay: 0.05s; }
.tools-grid .tool-card:nth-child(2) { animation-delay: 0.1s; }
.tools-grid .tool-card:nth-child(3) { animation-delay: 0.15s; }
.tools-grid .tool-card:nth-child(4) { animation-delay: 0.2s; }
.tools-grid .tool-card:nth-child(5) { animation-delay: 0.25s; }
.tools-grid .tool-card:nth-child(6) { animation-delay: 0.3s; }
.tools-grid .tool-card:nth-child(7) { animation-delay: 0.35s; }
.tools-grid .tool-card:nth-child(8) { animation-delay: 0.4s; }
.tools-grid .tool-card:nth-child(9) { animation-delay: 0.45s; }
.tools-grid .tool-card:nth-child(10) { animation-delay: 0.5s; }

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

.tool-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    display: block;
    color: var(--primary-color);
    stroke-width: 1.5;
}

/* Different colors for each tool card icon */
.tool-card:nth-child(1) .tool-icon { color: #3b82f6; } /* Merge - Blue */
.tool-card:nth-child(2) .tool-icon { color: #8b5cf6; } /* Split - Purple */
.tool-card:nth-child(3) .tool-icon { color: #06b6d4; } /* PDF to Word - Cyan */
.tool-card:nth-child(4) .tool-icon { color: #10b981; } /* Word to PDF - Green */
.tool-card:nth-child(5) .tool-icon { color: #f59e0b; } /* PDF to JPG - Amber */
.tool-card:nth-child(6) .tool-icon { color: #ec4899; } /* JPG to PDF - Pink */
.tool-card:nth-child(7) .tool-icon { color: #ef4444; } /* Compress - Red */
.tool-card:nth-child(8) .tool-icon { color: #f97316; } /* Remove Page - Orange */
.tool-card:nth-child(9) .tool-icon { color: #14b8a6; } /* Watermark - Teal */
.tool-card:nth-child(10) .tool-icon { color: #6366f1; } /* OCR - Indigo */

/* Hover states with matching colors */
.tool-card:nth-child(1):hover { border-color: #3b82f6; }
.tool-card:nth-child(2):hover { border-color: #8b5cf6; }
.tool-card:nth-child(3):hover { border-color: #06b6d4; }
.tool-card:nth-child(4):hover { border-color: #10b981; }
.tool-card:nth-child(5):hover { border-color: #f59e0b; }
.tool-card:nth-child(6):hover { border-color: #ec4899; }
.tool-card:nth-child(7):hover { border-color: #ef4444; }
.tool-card:nth-child(8):hover { border-color: #f97316; }
.tool-card:nth-child(9):hover { border-color: #14b8a6; }
.tool-card:nth-child(10):hover { border-color: #6366f1; }

.logo-icon {
    width: 56px;
    height: 56px;
    color: var(--primary-color);
}

.tool-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.tool-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* ===== Tool Page ===== */
.tool-page {
    padding: var(--spacing-xl) 0;
    flex: 1;
}

.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.tool-header h1 {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tool-header h1 svg {
    flex-shrink: 0;
}

/* Tool page icon colors */
.tool-icon-merge { color: #3b82f6; }
.tool-icon-split { color: #8b5cf6; }
.tool-icon-pdf-to-word { color: #06b6d4; }
.tool-icon-word-to-pdf { color: #10b981; }
.tool-icon-pdf-to-jpg { color: #f59e0b; }
.tool-icon-jpg-to-pdf { color: #ec4899; }
.tool-icon-compress { color: #ef4444; }
.tool-icon-remove { color: #f97316; }
.tool-icon-watermark { color: #14b8a6; }
.tool-icon-ocr { color: #6366f1; }

.tool-header h2 {
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 400;
}

.tool-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow);
    max-width: var(--content-max);
    margin: 0 auto;
    overflow: visible;
}

/* ===== File Upload ===== */
.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    background: var(--bg-secondary);
    position: relative;
}

.file-upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(37, 99, 235, 0.05) 50%, transparent 70%);
    background-size: 200% 200%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.file-upload-area:hover::before {
    opacity: 1;
    animation: shimmerBg 2s infinite;
}

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

.file-upload-area:hover,
.file-upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.file-upload-area.dragover {
    animation: pulse 1s ease infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.file-upload-area.dragover .upload-icon {
    animation: uploadBounce 0.5s ease infinite;
}

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

.file-upload-area input[type="file"] {
    display: none;
}

.file-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px 16px;
}

.file-input-hidden {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-input-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
}

.file-input-name {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
    transition: all var(--transition-normal);
}

.file-upload-area:hover .upload-icon {
    color: var(--primary-color);
    transform: scale(1.1);
}

.upload-text {
    color: var(--text-secondary);
}

.upload-text strong {
    color: var(--primary-color);
}

/* ===== File List ===== */
.file-list {
    margin-top: var(--spacing-lg);
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
    transition: all var(--transition-fast);
    animation: slideInRight 0.3s ease forwards;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.file-item.removing {
    animation: slideOutLeft 0.3s ease forwards;
}

@keyframes slideOutLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-20px);
    }
}

.file-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.file-item[draggable="true"] {
    cursor: grab;
}

.file-item[draggable="true"]:active {
    cursor: grabbing;
    transform: scale(1.02);
    box-shadow: var(--shadow);
}

.file-item.dragging {
    opacity: 0.5;
    background: var(--primary-light);
}

.file-icon {
    font-size: 1.5rem;
}

.file-name {
    flex: 1;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.remove-file {
    background: none;
    border: none;
    color: var(--error-color);
    font-size: 1.25rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.remove-file:hover {
    opacity: 1;
}

/* ===== Form Elements ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
    overflow: visible;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group label.checkbox-label,
.form-group label.radio-label {
    display: inline-flex;
    margin-bottom: 0;
    font-weight: normal;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--bg-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

select.form-control {
    cursor: pointer;
    -webkit-appearance: menulist;
    -moz-appearance: menulist;
    appearance: menulist;
    background-image: none;
    padding-right: var(--spacing-lg);
}

select.form-control:focus {
    box-shadow: 0 0 0 3px var(--primary-light);
}

select.form-control option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

[data-theme="dark"] select.form-control option {
    background: #0b1220;
    color: var(--text-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* ===== Checkbox & Radio ===== */
.checkbox-group,
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.checkbox-label,
.radio-label {
    display: inline-flex !important;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    margin-bottom: 0;
    font-weight: normal;
}

.checkbox-label input,
.radio-label input {
    width: 18px;
    height: 18px;
    min-width: 18px;
    min-height: 18px;
    cursor: pointer;
    margin: 0;
    flex-shrink: 0;
}

/* ===== Range Slider ===== */
.range-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.range-group input[type="range"] {
    flex: 1;
    cursor: pointer;
}

.range-value {
    min-width: 50px;
    text-align: right;
    font-weight: 500;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

/* Button Ripple Effect */
.btn::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.4s, opacity 0.8s;
}

.btn:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--border-color);
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* Button Loading State */
.btn.loading {
    pointer-events: none;
    position: relative;
}

.btn.loading .btn-text {
    opacity: 0;
}

.btn.loading::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
}

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

.btn-group {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ===== Progress Bar ===== */
.progress-container {
    margin: var(--spacing-lg) 0;
}

.progress-bar-bg {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, #60a5fa 50%, var(--primary-color) 100%);
    background-size: 200% 100%;
    border-radius: 4px;
    width: 0%;
    transition: width var(--transition-normal);
    animation: shimmer 1.5s infinite linear;
}

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

.progress-bar.complete {
    animation: progressComplete 0.5s ease forwards;
    background: var(--success-color);
}

@keyframes progressComplete {
    0% { transform: scaleX(1); }
    50% { transform: scaleX(1.02); }
    100% { transform: scaleX(1); }
}

.progress-text {
    text-align: center;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===== Messages ===== */
.error-message,
.success-message,
.warning-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    animation: slideIn 0.3s ease;
}

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

.error-message {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
    animation: slideIn 0.3s ease, shake 0.5s ease 0.3s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.success-message {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
    animation: slideIn 0.3s ease, successPop 0.4s ease 0.3s;
}

@keyframes successPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.success-message .success-icon {
    animation: checkBounce 0.5s ease 0.3s;
}

@keyframes checkBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.warning-message {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.error-icon,
.success-icon,
.warning-icon {
    font-size: 1.25rem;
}

.error-text,
.success-text,
.warning-text {
    flex: 1;
}

.error-close,
.success-close,
.warning-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    line-height: 1;
}

.error-close:hover,
.success-close:hover,
.warning-close:hover {
    opacity: 1;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 50;
    border-radius: var(--border-radius-lg);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Result Area ===== */
.result-area {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.result-area.hidden {
    display: none;
}

/* ===== Preview ===== */
.preview-area {
    margin-top: var(--spacing-lg);
}

.preview-image {
    max-width: 200px;
    max-height: 200px;
    object-fit: contain;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin-right: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* ===== Stats Display ===== */
.stats-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stats-item {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    text-align: center;
}

.stats-item span {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.stats-item strong {
    display: block;
    font-size: 1.25rem;
    margin-top: var(--spacing-xs);
}

.stats-item.highlight {
    background: var(--success-color);
    color: white;
}

.stats-item.highlight span,
.stats-item.highlight strong {
    color: white;
}

/* ===== Text Output ===== */
.text-output {
    width: 100%;
    min-height: 200px;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: monospace;
    font-size: 0.9rem;
    resize: vertical;
    background: var(--bg-secondary);
}

/* ===== Ad Placeholders ===== */
.ad-top,
.ad-middle,
.ad-bottom {
    margin: var(--spacing-lg) 0;
}

.ad-slot {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    width: 100%;
}

/* Mobile sticky ad */
.mobile-ad-sticky {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -6px 24px rgba(0, 0, 0, 0.08);
    padding: 0;
    z-index: 1200;
}

.mobile-ad-slot {
    width: 100%;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-ad-placeholder {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
}

.has-mobile-ad {
    padding-bottom: 0;
}

@media (min-width: 769px) {
    .mobile-ad-sticky {
        display: none;
    }
    .has-mobile-ad {
        padding-bottom: 0;
    }
}

/* ===== Footer ===== */
.breadcrumbs {
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: var(--spacing-md) 0;
    font-size: 0.95rem;
}

.breadcrumbs .container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.breadcrumbs a {
    color: var(--primary-color);
    font-weight: 600;
}

.breadcrumbs a:hover {
    color: var(--primary-hover);
}

.tip-box {
    color: var(--text-primary);
}

.tip-box p {
    color: inherit;
}

[data-theme="dark"] .tip-box {
    background: rgba(255, 255, 255, 0.06) !important;
    border-left-color: rgba(255, 255, 255, 0.25) !important;
    color: var(--text-primary);
}

[data-theme="dark"] .tip-box p,
[data-theme="dark"] .tip-box strong {
    color: var(--text-primary);
}

.crumb-sep {
    color: var(--text-muted);
}

.crumb-current {
    color: var(--text-primary);
}

.footer {
    background: #ffffff;
    color: var(--text-primary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-heading {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    font-weight: 600;
}

.footer ul {
    list-style: none;
}

.footer li {
    margin-bottom: var(--spacing-sm);
}

.footer a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(15, 23, 42, 0.08);
    color: var(--text-muted);
}

/* ===== Privacy Page ===== */
.privacy-content {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin: var(--spacing-xl) auto;
    max-width: var(--content-max);
}

.privacy-content h1 {
    margin-bottom: var(--spacing-xl);
}

.privacy-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-light);
}

.privacy-content ul {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.privacy-content li {
    margin-bottom: var(--spacing-sm);
}

.highlight-box {
    background: var(--primary-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary-color);
    margin: var(--spacing-lg) 0;
}

.highlight-box strong {
    color: var(--primary-color);
}

/* ===== SEO Content Section ===== */
.seo-content {
    background: var(--bg-primary);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.seo-content .seo-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.seo-content .seo-subtitle {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.seo-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

/* ===== FAQ Section ===== */
.faq-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-primary);
}

.faq-section .faq-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    text-align: center;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    background: var(--bg-secondary);
    transition: box-shadow var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--bg-tertiary);
}

.faq-question-title {
    margin: 0;
    font: inherit;
    color: inherit;
}

.faq-question i {
    flex-shrink: 0;
    transition: transform var(--transition-normal);
    color: var(--primary-color);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* FAQ Schema Markup */
.faq-section script[type="application/ld+json"] {
    display: none;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    /* Fix for mobile select dropdown positioning */
    .header {
        position: relative;
        transform: none !important;
    }

    .tool-page {
        position: relative;
        z-index: 1;
    }

    .tool-container {
        position: static;
        transform: none !important;
    }

    .form-group {
        position: static;
    }

    select.form-control {
        position: static;
    }

    .header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    /* Mobile menu on the left */
    .mobile-menu-left {
        order: 1;
    }
    
    .logo {
        order: 2;
        flex: 1;
        justify-content: center;
    }

    .nav {
        order: 3;
        width: auto;
        justify-content: flex-end;
        flex-wrap: nowrap;
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero p {
        font-size: 1rem;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .tool-container {
        padding: var(--spacing-lg);
    }

    .file-upload-area {
        padding: var(--spacing-xl);
    }

    .btn-lg {
        width: 100%;
    }

    .btn-group {
        flex-direction: column;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-display {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .tool-card {
        padding: var(--spacing-lg);
    }

    .file-item {
        flex-wrap: wrap;
    }

    .file-name {
        order: 1;
        width: 100%;
        margin-top: var(--spacing-sm);
    }
}

/* ===== Print Styles ===== */
@media print {
    .header,
    .footer,
    .ad-top,
    .ad-middle,
    .ad-bottom,
    .btn,
    .file-upload-area {
        display: none !important;
    }

    body {
        background: white;
    }

    .tool-container,
    .privacy-content {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== Dark Mode Support ===== */
[data-theme="dark"] {
    --bg-primary: #1e293b;
    --bg-secondary: #0f172a;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --primary-light: #1e3a5f;
}

[data-theme="dark"] .tool-card,
[data-theme="dark"] .tool-container,
[data-theme="dark"] .privacy-content {
    background: var(--bg-primary);
}

[data-theme="dark"] .form-control {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .loading-overlay {
    background: rgba(15, 23, 42, 0.9);
}

[data-theme="dark"] .file-upload-area {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .highlight-box {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .hero {
    background: #0f172a;
}

[data-theme="dark"] .footer {
    background: #0b1221;
    color: #e2e8f0;
}

[data-theme="dark"] .footer-heading {
    color: #e2e8f0;
}

[data-theme="dark"] .footer a {
    color: #cbd5e1;
}

[data-theme="dark"] .footer a:hover {
    color: #ffffff;
}

[data-theme="dark"] .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
}

[data-theme="dark"] .error-message {
    background: #450a0a;
    color: #fca5a5;
    border-color: #7f1d1d;
}

[data-theme="dark"] .success-message {
    background: #052e16;
    color: #86efac;
    border-color: #14532d;
}

/* Theme Toggle Switch */
.theme-toggle {
    position: relative;
    width: 70px;
    height: 36px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    padding: 4px;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    border-radius: 50%;
    left: 4px;
    transition: all 0.4s ease;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.4);
}

.theme-toggle:hover {
    transform: scale(1.05);
}

.theme-toggle svg {
    position: absolute;
    width: 16px;
    height: 16px;
    z-index: 1;
    transition: all 0.4s ease;
}

.theme-toggle .sun-icon {
    left: 10px;
    color: white;
    display: block;
}

.theme-toggle .moon-icon {
    right: 10px;
    color: #94a3b8;
    display: block;
    opacity: 0.5;
}

/* Dark Mode Toggle */
[data-theme="dark"] .theme-toggle {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

[data-theme="dark"] .theme-toggle::before {
    left: calc(100% - 32px);
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

[data-theme="dark"] .theme-toggle .sun-icon {
    color: #64748b;
    opacity: 0.5;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    color: white;
    opacity: 1;
}