:root {
    /* AKU-EB Color Palette - Updated to match index.html */
    --primary-green: #0A5C44;
    --accent-yellow: #DDAF2A;
    --white: #FFFFFF;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.15);
    
    /* Glassmorphism Variables */
    --glass-bg-heavy: rgba(255, 255, 255, 0.05);
    --glass-border-heavy: 1px solid rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(20px);
    
    /* Typography */
    --text-white: rgba(255, 255, 255, 0.95);
    --text-light: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --text-dark: #212529;
    
    /* Spacing & Effects */
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease;
    --border-radius: 16px;
    --border-radius-sm: 12px;
    --border-radius-lg: 24px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.2);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.3);
    
    /* Section Colors */
    --color-notes: #9b59b6;
    --color-worksheets: #f39c12;
    --color-syllabus: #1abc9c;
    --color-keys: #e74c3c;
    --color-ebooks: #3498db;
    --color-igcse: #e67e22;
    --color-videos: #DDAF2A;
    --color-mcqs: #e74c3c;
    --color-crqs: #3498db;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, #064130 0%, var(--primary-green) 100%);
    background-attachment: fixed;
    color: var(--text-white);
    line-height: 1.7;
    min-height: 100vh;
    font-weight: 400;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(221, 175, 42, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(10, 92, 68, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

/* BOTTOM NAVIGATION BAR - Like index.html */
header {
    position: fixed;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: fit-content;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 8px 25px;
    display: flex;
    gap: 20px;
    z-index: 9999;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    transition: var(--transition);
}

/* Show/hide on scroll */
header.hidden {
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
    visibility: hidden;
}

header.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

.header-container {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Logo in Navigation (Smaller) */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    overflow: hidden;
    padding: 5px;
    transition: var(--transition);
}

.logo-icon:hover {
    transform: scale(1.1);
    border-color: var(--accent-yellow);
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(1.2);
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-yellow) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: none; /* Hide text in bottom nav */
}

/* Compact Navigation */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 50px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--accent-yellow);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: #1a1a1a;
    background: var(--accent-yellow);
}

.nav-link i {
    font-size: 1rem;
}

/* Mobile Menu Button (Hamburger) for Bottom Nav */
.mobile-menu-btn {
    display: none;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-white);
    padding: 0;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-yellow);
    transform: scale(1.05);
}

/* Hero Section - Updated to match index.html */
.hero {
    padding: 60px 0 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-box {
    width: 90px;
    height: 90px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 12px;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.logo-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.2rem;
    margin-bottom: 10px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.1;
    color: var(--text-white);
}

.hero-subtitle {
    font-size: 1rem;
    margin-bottom: 45px;
    opacity: 0.8;
    line-height: 1.8;
    font-weight: 400;
    color: var(--text-light);
    max-width: 500px;
    margin: 0 auto 20px auto;
}

.aku {
    color: var(--accent-yellow);
}

/* Small Cards Grid - Like index.html */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.2rem;
    padding: 40px 0 120px;
}

.small-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1.8rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
}

.small-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    border-color: var(--accent-yellow);
}

.small-card i {
    font-size: 1.8rem;
    color: var(--accent-yellow);
    margin-bottom: 1rem;
    display: block;
}

.small-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--text-white);
}

.small-card p {
    font-size: 0.85rem;
    opacity: 0.7;
    color: var(--text-light);
}

/* Main content area padding for bottom nav */
main {
    padding-bottom: 100px;
}

/* Stats Section - Glassmorphism Design */
.stats {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 60px 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: 25px 20px;
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    min-width: 150px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(221, 175, 42, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-yellow);
    margin-bottom: 8px;
    line-height: 1;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* Section Titles */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-white);
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    position: relative;
    animation: fadeIn 1s ease-out;
}

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e6c260 100%);
    border-radius: 2px;
}

/* Resources Tabs */
.resources-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    background: var(--glass-bg-heavy);
    padding: 10px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    border: var(--glass-border-heavy);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    backdrop-filter: blur(10px);
    animation: fadeIn 1s ease-out 0.3s both;
}

.tab-btn {
    padding: 16px 25px;
    background: transparent;
    border: none;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
    flex: 1;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 92, 68, 0.1) 0%, rgba(76, 156, 122, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--text-white);
    background: linear-gradient(135deg, rgba(10, 92, 68, 0.2) 0%, rgba(76, 156, 122, 0.2) 100%);
    box-shadow: var(--shadow-card);
}

.tab-btn.active::before {
    opacity: 1;
}

.tab-btn:hover:not(.active) {
    color: var(--accent-yellow);
    background: rgba(221, 175, 42, 0.1);
}

/* Glassmorphism Filter Section */
.filter-section {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.filter-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-yellow) 100%);
}

.filter-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-title i {
    color: var(--accent-yellow);
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-label {
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-white);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-label i {
    color: var(--accent-yellow);
    font-size: 0.9rem;
}

.filter-select {
    padding: 14px 18px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 18px center;
    background-size: 16px;
    font-weight: 500;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-yellow);
    box-shadow: 0 0 0 4px rgba(221, 175, 42, 0.2);
    transform: translateY(-2px);
}

.filter-select option {
    background: var(--primary-green);
    color: var(--text-white);
    padding: 10px;
}

.filter-actions {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
    align-items: center;
}

.results-count {
    color: var(--text-light);
    font-size: 1rem;
    margin-top: 20px;
    padding: 14px 22px;
    background: rgba(10, 92, 68, 0.1);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--accent-yellow);
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Glassmorphism Search Box */
.search-box {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    background: var(--glass-bg-heavy);
    padding: 10px;
    border-radius: var(--border-radius-lg);
    border: var(--glass-border-heavy);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--accent-yellow);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.search-input {
    flex: 1;
    padding: 18px 24px;
    border: none;
    background: transparent;
    color: var(--text-white);
    font-size: 1.1rem;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
}

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

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.05);
}

.search-btn {
    padding: 18px 32px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e6c260 100%);
    border: none;
    border-radius: var(--border-radius-sm);
    color: #1a1a1a;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, #e6c260 0%, var(--accent-yellow) 100%);
}

/* Glassmorphism Resources Grid */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.resource-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(221, 175, 42, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.resource-card:nth-child(1) { animation-delay: 0.1s; }
.resource-card:nth-child(2) { animation-delay: 0.2s; }
.resource-card:nth-child(3) { animation-delay: 0.3s; }
.resource-card:nth-child(4) { animation-delay: 0.4s; }
.resource-card:nth-child(5) { animation-delay: 0.5s; }
.resource-card:nth-child(6) { animation-delay: 0.6s; }

.resource-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(221, 175, 42, 0.3);
}

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

.card-header {
    background: linear-gradient(135deg, rgba(10, 92, 68, 0.3) 0%, rgba(6, 65, 48, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23064130" cx="20" cy="20" r="5"/><circle fill="%23064130" cx="80" cy="80" r="8"/><circle fill="%23064130" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.card-body {
    padding: 25px;
}

.card-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.resource-list {
    list-style: none;
    margin-top: 20px;
}

.resource-list li {
    margin-bottom: 10px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.resource-list li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--accent-yellow);
    font-weight: bold;
}

.resource-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
    color: var(--text-light);
    font-size: 0.95rem;
}

.paper-type {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    background: rgba(76, 156, 122, 0.3);
    color: var(--text-white);
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.paper-type.mcqs {
    background: rgba(231, 76, 60, 0.3);
}

.paper-type.crqs {
    background: rgba(52, 152, 219, 0.3);
}

.paper-type.notes {
    background: rgba(155, 89, 182, 0.3);
}

.paper-type.worksheets {
    background: rgba(243, 156, 18, 0.3);
}

.paper-type.syllabus {
    background: rgba(26, 188, 156, 0.3);
}

.paper-type.keys {
    background: rgba(231, 76, 60, 0.3);
}

.paper-type.ebooks {
    background: rgba(52, 152, 219, 0.3);
}

.paper-type.igcse {
    background: rgba(230, 126, 34, 0.3);
}

/* Notes Selection - Glassmorphism */
.notes-selection {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.notes-selection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--color-notes) 0%, #8e44ad 100%);
}

.notes-selection-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.notes-selection-title i {
    color: var(--color-notes);
}

.notes-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

/* Answer Keys Section */
.keys-selection {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.keys-selection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--color-keys) 0%, #c0392b 100%);
}

.keys-selection-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.keys-selection-title i {
    color: var(--color-keys);
}

.keys-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

/* E-Books Section */
.ebooks-selection {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.ebooks-selection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--color-ebooks) 0%, #2980b9 100%);
}

.ebooks-selection-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.ebooks-selection-title i {
    color: var(--color-ebooks);
}

.ebooks-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

/* IGCSE Section */
.igcse-selection {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.igcse-selection::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--color-igcse) 0%, #d35400 100%);
}

.igcse-selection-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.igcse-selection-title i {
    color: var(--color-igcse);
}

.igcse-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

/* Glassmorphism Note Cards */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.note-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.note-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.note-card:nth-child(1) { animation-delay: 0.1s; }
.note-card:nth-child(2) { animation-delay: 0.2s; }
.note-card:nth-child(3) { animation-delay: 0.3s; }
.note-card:nth-child(4) { animation-delay: 0.4s; }
.note-card:nth-child(5) { animation-delay: 0.5s; }
.note-card:nth-child(6) { animation-delay: 0.6s; }

.note-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(155, 89, 182, 0.3);
}

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

.note-header {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.3) 0%, rgba(142, 68, 173, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.note-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%238e44ad" cx="20" cy="20" r="5"/><circle fill="%238e44ad" cx="80" cy="80" r="8"/><circle fill="%238e44ad" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.note-body {
    padding: 25px;
}

.note-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.note-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.note-features {
    list-style: none;
    margin: 20px 0;
}

.note-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.note-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-notes);
    font-weight: bold;
}

/* Glassmorphism Worksheet Cards */
.worksheets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.worksheet-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.worksheet-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.worksheet-card:nth-child(1) { animation-delay: 0.1s; }
.worksheet-card:nth-child(2) { animation-delay: 0.2s; }
.worksheet-card:nth-child(3) { animation-delay: 0.3s; }
.worksheet-card:nth-child(4) { animation-delay: 0.4s; }
.worksheet-card:nth-child(5) { animation-delay: 0.5s; }
.worksheet-card:nth-child(6) { animation-delay: 0.6s; }

.worksheet-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(243, 156, 18, 0.3);
}

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

.worksheet-header {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.3) 0%, rgba(230, 126, 34, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.worksheet-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23e67e22" cx="20" cy="20" r="5"/><circle fill="%23e67e22" cx="80" cy="80" r="8"/><circle fill="%23e67e22" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.worksheet-body {
    padding: 25px;
}

.worksheet-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.worksheet-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.worksheet-features {
    list-style: none;
    margin: 20px 0;
}

.worksheet-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.worksheet-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-worksheets);
    font-weight: bold;
}

/* Glassmorphism Syllabus Cards */
.syllabus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.syllabus-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.syllabus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 188, 156, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.syllabus-card:nth-child(1) { animation-delay: 0.1s; }
.syllabus-card:nth-child(2) { animation-delay: 0.2s; }
.syllabus-card:nth-child(3) { animation-delay: 0.3s; }
.syllabus-card:nth-child(4) { animation-delay: 0.4s; }
.syllabus-card:nth-child(5) { animation-delay: 0.5s; }
.syllabus-card:nth-child(6) { animation-delay: 0.6s; }

.syllabus-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(26, 188, 156, 0.3);
}

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

.syllabus-header {
    background: linear-gradient(135deg, rgba(26, 188, 156, 0.3) 0%, rgba(22, 160, 133, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.syllabus-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%2316a085" cx="20" cy="20" r="5"/><circle fill="%2316a085" cx="80" cy="80" r="8"/><circle fill="%2316a085" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.syllabus-body {
    padding: 25px;
}

.syllabus-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.syllabus-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.syllabus-features {
    list-style: none;
    margin: 20px 0;
}

.syllabus-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.syllabus-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-syllabus);
    font-weight: bold;
}

/* Glassmorphism Answer Key Cards */
.key-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.key-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.key-card:nth-child(1) { animation-delay: 0.1s; }
.key-card:nth-child(2) { animation-delay: 0.2s; }
.key-card:nth-child(3) { animation-delay: 0.3s; }
.key-card:nth-child(4) { animation-delay: 0.4s; }
.key-card:nth-child(5) { animation-delay: 0.5s; }
.key-card:nth-child(6) { animation-delay: 0.6s; }

.key-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(231, 76, 60, 0.3);
}

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

.key-header {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.3) 0%, rgba(192, 57, 43, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.key-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23c0392b" cx="20" cy="20" r="5"/><circle fill="%23c0392b" cx="80" cy="80" r="8"/><circle fill="%23c0392b" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.key-body {
    padding: 25px;
}

.key-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.key-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.key-features {
    list-style: none;
    margin: 20px 0;
}

.key-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.key-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-keys);
    font-weight: bold;
}

/* Glassmorphism E-Book Cards */
.ebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.ebook-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.ebook-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.ebook-card:nth-child(1) { animation-delay: 0.1s; }
.ebook-card:nth-child(2) { animation-delay: 0.2s; }
.ebook-card:nth-child(3) { animation-delay: 0.3s; }
.ebook-card:nth-child(4) { animation-delay: 0.4s; }
.ebook-card:nth-child(5) { animation-delay: 0.5s; }
.ebook-card:nth-child(6) { animation-delay: 0.6s; }

.ebook-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(52, 152, 219, 0.3);
}

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

.ebook-header {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.3) 0%, rgba(41, 128, 185, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ebook-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%232980b9" cx="20" cy="20" r="5"/><circle fill="%232980b9" cx="80" cy="80" r="8"/><circle fill="%232980b9" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.ebook-body {
    padding: 25px;
}

.ebook-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.ebook-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.ebook-features {
    list-style: none;
    margin: 20px 0;
}

.ebook-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.ebook-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-ebooks);
    font-weight: bold;
}

.ebook-cover {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.3) 0%, rgba(41, 128, 185, 0.3) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 4rem;
    margin-bottom: 20px;
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ebook-cover::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%232980b9" x="20" y="20" width="60" height="60" rx="5"/><rect fill="%233498db" x="25" y="25" width="50" height="50" rx="3"/></svg>');
    opacity: 0.2;
}

/* Glassmorphism IGCSE Cards */
.igcse-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.igcse-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.igcse-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(230, 126, 34, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.igcse-card:nth-child(1) { animation-delay: 0.1s; }
.igcse-card:nth-child(2) { animation-delay: 0.2s; }
.igcse-card:nth-child(3) { animation-delay: 0.3s; }
.igcse-card:nth-child(4) { animation-delay: 0.4s; }
.igcse-card:nth-child(5) { animation-delay: 0.5s; }
.igcse-card:nth-child(6) { animation-delay: 0.6s; }

.igcse-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(230, 126, 34, 0.3);
}

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

.igcse-header {
    background: linear-gradient(135deg, rgba(230, 126, 34, 0.3) 0%, rgba(211, 84, 0, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.igcse-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23d35400" cx="20" cy="20" r="5"/><circle fill="%23d35400" cx="80" cy="80" r="8"/><circle fill="%23d35400" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.igcse-body {
    padding: 25px;
}

.igcse-resource-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.igcse-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.igcse-features {
    list-style: none;
    margin: 20px 0;
}

.igcse-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.igcse-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-igcse);
    font-weight: bold;
}

/* Animation Videos Section - Glassmorphism */
.animations-section {
    background: var(--glass-bg-heavy);
    padding: 35px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 50px;
    border: var(--glass-border-heavy);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(15px);
    animation: fadeIn 1s ease-out 0.5s both;
}

.animations-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e6c260 100%);
}

.animations-title {
    color: var(--text-white);
    margin-bottom: 30px;
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.animations-title i {
    color: var(--accent-yellow);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.video-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
    position: relative;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.video-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(221, 175, 42, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.video-card:nth-child(1) { animation-delay: 0.1s; }
.video-card:nth-child(2) { animation-delay: 0.2s; }
.video-card:nth-child(3) { animation-delay: 0.3s; }
.video-card:nth-child(4) { animation-delay: 0.4s; }
.video-card:nth-child(5) { animation-delay: 0.5s; }
.video-card:nth-child(6) { animation-delay: 0.6s; }

.video-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(221, 175, 42, 0.3);
}

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

.video-header {
    background: linear-gradient(135deg, rgba(221, 175, 42, 0.3) 0%, rgba(230, 194, 96, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.video-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23e6c260" cx="20" cy="20" r="5"/><circle fill="%23e6c260" cx="80" cy="80" r="8"/><circle fill="%23e6c260" cx="60" cy="30" r="3"/></svg>');
    opacity: 0.1;
}

.video-body {
    padding: 25px;
}

.video-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
    line-height: 1.3;
}

.video-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 20px;
    font-weight: 500;
}

.video-features {
    list-style: none;
    margin: 20px 0;
}

.video-features li {
    margin-bottom: 8px;
    padding-left: 24px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.video-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-yellow);
    font-weight: bold;
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    margin-bottom: 20px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    background: rgba(0, 0, 0, 0.2);
}

.video-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* IGCSE Video Cards */
.igcse-video-card {
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    backdrop-filter: blur(10px);
}

.igcse-video-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-elevated);
    border-color: rgba(243, 156, 18, 0.3);
}

.igcse-video-header {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.3) 0%, rgba(230, 126, 34, 0.3) 100%);
    color: var(--text-white);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.igcse-video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    margin-bottom: 20px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    background: rgba(0, 0, 0, 0.2);
}

.igcse-video-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Glassmorphism Resource Viewer */
.resource-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(6, 65, 48, 0.95);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10001; /* Above bottom nav */
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.resource-viewer.active {
    opacity: 1;
    visibility: visible;
}

.viewer-content {
    background: var(--glass-bg-heavy);
    width: 95%;
    height: 95%;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-elevated);
    border: var(--glass-border-heavy);
    backdrop-filter: blur(20px);
    animation: zoomIn 0.4s ease-out;
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.viewer-header {
    background: linear-gradient(135deg, rgba(10, 92, 68, 0.3) 0%, rgba(6, 65, 48, 0.3) 100%);
    color: var(--text-white);
    padding: 22px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.viewer-title {
    font-size: 1.3rem;
    font-weight: 700;
}

.viewer-close {
    background: rgba(255, 255, 255, 0.1);
    border: var(--glass-border-heavy);
    color: var(--text-white);
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 8px;
    border-radius: var(--border-radius-sm);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.viewer-close:hover {
    background: rgba(221, 175, 42, 0.3);
    border-color: var(--accent-yellow);
    transform: rotate(90deg);
}

.viewer-body {
    flex: 1;
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.pdf-container {
    flex: 1;
    width: 100%;
    height: 100%;
    position: relative;
    background: rgba(0, 0, 0, 0.2);
}

.pdf-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: rgba(255, 255, 255, 0.05);
}

.pdf-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

/* Glassmorphism Footer */
footer {
    background: rgba(6, 65, 48, 0.9);
    color: var(--text-white);
    padding: 100px 0 80px; /* Extra bottom padding for bottom nav */
    position: relative;
    backdrop-filter: blur(15px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="%23064130" points="0,0 1000,1000 0,1000"/></svg>');
    opacity: 0.1;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    color: var(--accent-yellow);
    font-weight: 700;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: var(--text-light);
    transition: var(--transition);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--accent-yellow);
    padding-left: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    font-size: 1rem;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
    font-weight: 500;
}

/* Glassmorphism Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e6c260 100%);
    color: #1a1a1a;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 700;
    transition: var(--transition);
    text-align: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition);
}

.btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: var(--shadow-hover);
    color: #1a1a1a;
}

.btn:hover::before {
    left: 100%;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-yellow);
    color: var(--accent-yellow);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: linear-gradient(135deg, var(--accent-yellow) 0%, #e6c260 100%);
    color: #1a1a1a;
    border-color: transparent;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 45px;
    flex-wrap: wrap;
}

/* Quick Links */
.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-bottom: 40px;
}

.quick-link {
    padding: 14px 28px;
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    border-radius: 50px;
    color: var(--text-white);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.quick-link:hover {
    background: rgba(221, 175, 42, 0.2);
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 80px 50px;
    color: var(--text-light);
    grid-column: 1 / -1;
    background: var(--glass-bg-heavy);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    border: var(--glass-border-heavy);
    backdrop-filter: blur(10px);
}

.no-results i {
    font-size: 5rem;
    margin-bottom: 25px;
    color: var(--text-muted);
    opacity: 0.5;
}

.no-results h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
}

.no-results p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.6s ease-in-out;
}

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

/* Particles Animation */
.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
    }
}

/* JavaScript Scroll Behavior */
@keyframes slideUp {
    from {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }
    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    to {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }
}

/* Responsive Styles */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 0 40px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .filter-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .resources-grid,
    .notes-grid,
    .worksheets-grid,
    .syllabus-grid,
    .videos-grid,
    .ebooks-grid,
    .igcse-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats {
        gap: 20px;
    }

    .stat-item {
        min-width: 140px;
        padding: 20px 15px;
    }

    .stat-number {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 8px 20px;
        gap: 15px;
    }
    
    .nav-menu {
        gap: 10px;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .nav-link span {
        display: none; /* Hide text on mobile */
    }
    
    .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 320px;
        padding: 16px 24px;
    }
    
    .filter-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-actions {
        flex-direction: column;
        justify-content: center;
        gap: 15px;
    }
    
    .resources-grid,
    .notes-grid,
    .worksheets-grid,
    .syllabus-grid,
    .videos-grid,
    .ebooks-grid,
    .igcse-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .search-box {
        flex-direction: column;
        gap: 12px;
    }
    
    .search-btn {
        width: 100%;
        justify-content: center;
    }
    
    .stats {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .stat-item {
        width: 100%;
        max-width: 250px;
    }
    
    .resources-tabs {
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .tab-btn {
        flex: 1;
        min-width: 150px;
        padding: 14px 16px;
        font-size: 0.95rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 576px) {
    header {
        bottom: 15px;
        padding: 8px 15px;
        gap: 10px;
        width: 95%;
    }
    
    .nav-link {
        padding: 6px 8px;
    }
    
    .nav-link i {
        font-size: 1rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }
    
    .section-title::after {
        bottom: -10px;
        width: 60px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .container {
        padding: 0 25px;
    }
    
    .filter-section,
    .notes-selection,
    .keys-selection,
    .ebooks-selection,
    .igcse-selection,
    .animations-section {
        padding: 25px;
    }
    
    .card-header,
    .note-header,
    .worksheet-header,
    .syllabus-header,
    .key-header,
    .ebook-header,
    .igcse-header,
    .video-header {
        padding: 20px;
    }
    
    .card-body,
    .note-body,
    .worksheet-body,
    .syllabus-body,
    .key-body,
    .ebook-body,
    .igcse-body,
    .video-body {
        padding: 20px;
    }
    
    .resources-tabs {
        padding: 8px;
        gap: 3px;
    }
    
    .tab-btn {
        min-width: calc(50% - 6px);
        padding: 12px 8px;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 16px 28px;
        font-size: 1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .quick-links {
        flex-direction: column;
        align-items: center;
    }
    
    .quick-link {
        width: 100%;
        max-width: 280px;
        text-align: center;
        justify-content: center;
    }
    
    .viewer-content {
        width: 100%;
        height: 100%;
        border-radius: 0;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 400px) {
    header {
        padding: 6px 10px;
        gap: 5px;
    }
    
    .nav-link {
        padding: 5px 6px;
    }
    
    .nav-link i {
        font-size: 0.9rem;
    }
    
    .logo-icon {
        width: 30px;
        height: 30px;
    }
    
    .container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .stat-item {
        padding: 15px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.85rem;
    }
    
    .card-title,
    .note-title,
    .worksheet-title,
    .syllabus-title,
    .key-title,
    .ebook-title,
    .igcse-resource-title,
    .video-title {
        font-size: 1.1rem;
    }
    
    .tab-btn {
        min-width: 100%;
    }
    
    .small-card {
        padding: 1.2rem;
    }
    
    .small-card i {
        font-size: 1.5rem;
    }
    
    .small-card h3 {
        font-size: 1rem;
    }
    
    .small-card p {
        font-size: 0.8rem;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .hero-buttons,
    .search-box,
    .quick-links,
    .mobile-menu-btn {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .container {
        max-width: 100% !important;
        padding: 0 !important;
    }
    
    .resource-card,
    .note-card,
    .worksheet-card,
    .syllabus-card,
    .key-card,
    .ebook-card,
    .igcse-card,
    .video-card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .section {
        padding: 20px 0 !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-white: #ffffff;
        --text-light: #cccccc;
        --text-muted: #999999;
        --glass-border: 2px solid rgba(255, 255, 255, 0.2);
    }
    
    .resource-card:hover,
    .note-card:hover,
    .worksheet-card:hover,
    .syllabus-card:hover,
    .key-card:hover,
    .ebook-card:hover,
    .igcse-card:hover,
    .video-card:hover {
        border-width: 2px;
    }
}

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

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #053027 0%, #084a36 100%);
    }
    
    :root {
        --glass-bg: rgba(0, 0, 0, 0.2);
        --glass-border: 1px solid rgba(255, 255, 255, 0.15);
    }
    
    .filter-select option {
        background: #053027;
    }
}

/* Accessibility: Focus Styles */
*:focus {
    outline: 3px solid var(--accent-yellow);
    outline-offset: 3px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

*:focus-visible {
    outline: 3px solid var(--accent-yellow);
    outline-offset: 3px;
}

/* Selection Color */
::selection {
    background: rgba(221, 175, 42, 0.3);
    color: var(--text-white);
}

::-moz-selection {
    background: rgba(221, 175, 42, 0.3);
    color: var(--text-white);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: rgba(10, 92, 68, 0.5);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-yellow);
    border-radius: 6px;
    border: 3px solid rgba(10, 92, 68, 0.5);
}

::-webkit-scrollbar-thumb:hover {
    background: #e6c260;
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    animation: loading 1.5s infinite;
}

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

/* Tooltip */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    pointer-events: none;
}

[data-tooltip]:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-8px);
}

/* Badge for New Content */
.badge {
    display: inline-block;
    padding: 4px 10px;
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: 8px;
    vertical-align: middle;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.9;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 40px;
    color: var(--text-light);
    background: var(--glass-bg-heavy);
    border-radius: var(--border-radius-lg);
    border: var(--glass-border-heavy);
    backdrop-filter: blur(10px);
    margin: 40px auto;
    max-width: 600px;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--accent-yellow);
    margin-bottom: 20px;
    opacity: 0.7;
}

.empty-state-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-white);
    font-weight: 700;
}

.empty-state-description {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 25px;
    color: var(--text-light);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 80px; /* Above bottom nav */
    right: 30px;
    background: var(--glass-bg-heavy);
    border: var(--glass-border-heavy);
    backdrop-filter: blur(15px);
    padding: 20px 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-elevated);
    color: var(--text-white);
    font-weight: 500;
    z-index: 10000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    max-width: 400px;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-left: 4px solid #2ecc71;
}

.toast.error {
    border-left: 4px solid #e74c3c;
}

.toast.warning {
    border-left: 4px solid #f39c12;
}

.toast.info {
    border-left: 4px solid #3498db;
}

/* Performance Optimizations */
.will-change {
    will-change: transform, opacity;
}

.hardware-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* Lazy Loading */
.lazy-load {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.lazy-load.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Grid Fallback */
@supports not (display: grid) {
    .resources-grid,
    .notes-grid,
    .worksheets-grid,
    .syllabus-grid,
    .videos-grid,
    .ebooks-grid,
    .igcse-grid,
    .resource-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .resource-card,
    .note-card,
    .worksheet-card,
    .syllabus-card,
    .key-card,
    .ebook-card,
    .igcse-card,
    .video-card,
    .small-card {
        width: 320px;
        margin: 15px;
    }
}

/* IE11 Support */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .glass-effect {
        background: rgba(6, 65, 48, 0.95);
    }
    
    .resources-grid,
    .resource-grid {
        display: flex;
        flex-wrap: wrap;
    }
    
    .resource-card,
    .small-card {
        width: calc(33.333% - 30px);
        margin: 15px;
    }
}

/* Edge Support */
@supports (-ms-ime-align: auto) {
    .glass-effect {
        background: rgba(6, 65, 48, 0.95);
    }
}

/* Safari Specific */
@supports (-webkit-touch-callout: none) {
    .glass-effect {
        -webkit-backdrop-filter: blur(15px);
    }
    
    header,
    .filter-section,
    .notes-selection,
    .keys-selection,
    .ebooks-selection,
    .igcse-selection,
    .animations-section,
    .resource-card,
    .note-card,
    .worksheet-card,
    .syllabus-card,
    .key-card,
    .ebook-card,
    .igcse-card,
    .video-card,
    .small-card {
        -webkit-backdrop-filter: blur(15px);
    }
}

/* Firefox Specific */
@-moz-document url-prefix() {
    .glass-effect {
        background: rgba(6, 65, 48, 0.95);
    }
}

/* Final Optimizations */
@media (min-width: 1921px) {
    .container {
        max-width: 1600px;
    }
    
    .resources-grid,
    .notes-grid,
    .worksheets-grid,
    .syllabus-grid,
    .videos-grid,
    .ebooks-grid,
    .igcse-grid,
    .resource-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .resource-card:hover,
    .note-card:hover,
    .worksheet-card:hover,
    .syllabus-card:hover,
    .key-card:hover,
    .ebook-card:hover,
    .igcse-card:hover,
    .video-card:hover,
    .btn:hover,
    .quick-link:hover,
    .tab-btn:hover,
    .small-card:hover {
        transform: none;
    }
    
    .btn::before {
        display: none;
    }
    
    .stat-item:hover,
    .resource-card:hover,
    .note-card:hover,
    .worksheet-card:hover,
    .syllabus-card:hover,
    .key-card:hover,
    .ebook-card:hover,
    .igcse-card:hover,
    .video-card:hover,
    .small-card:hover {
        transform: none;
        border-color: var(--glass-border-heavy);
    }
    
    .mobile-menu-btn:active {
        background: rgba(221, 175, 42, 0.2);
    }
}