/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', 'Noto Sans Tamil', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: all 0.3s ease;
}

/* CSS Variables */
:root {
    /* Google Colors */
    --google-blue: #4285F4;
    --google-red: #EA4335;
    --google-yellow: #FBBC05;
    --google-green: #34A853;
    
    /* Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8faff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Card colors */
    --card-medical: linear-gradient(135deg, #ff6b6b, #ee5a52);
    --card-engineering: linear-gradient(135deg, var(--google-blue), #3b82f6);
    --card-law: linear-gradient(135deg, #8b5cf6, #7c3aed);
    --card-defense: linear-gradient(135deg, #059669, var(--google-green));
    --card-other: linear-gradient(135deg, #f59e0b, var(--google-yellow));
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: #334155;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Loading Spinner */
#loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-spinner.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border);
    border-top: 4px solid var(--google-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Floating Buttons */
.lang-toggle, .dark-mode-toggle, .search-toggle {
    position: fixed;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--google-blue);
    color: white;
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.lang-toggle {
    top: 20px;
    right: 20px;
    flex-direction: column;
    font-size: 12px;
    font-weight: 600;
}

.dark-mode-toggle {
    top: 90px;
    right: 20px;
    background: var(--google-yellow);
    color: #1e293b;
}

.search-toggle {
    bottom: 100px;
    right: 20px;
    background: var(--google-green);
}

.lang-toggle:hover, .dark-mode-toggle:hover, .search-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Search Overlay */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-container {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 24px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    position: relative;
}

#search-input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

#search-input:focus {
    border-color: var(--google-blue);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.search-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-close:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}

.search-results {
    margin-top: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.search-result-item:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.search-result-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.search-result-category {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Header */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--google-blue);
    text-decoration: none;
}

.nav-brand i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--google-blue);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--google-blue);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 2rem 80px;
    display: flex;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero::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="%23ffffff08" points="0,1000 1000,0 1000,1000"/></svg>');
    background-size: cover;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hero-title span:first-child {
    background: linear-gradient(45deg, #fff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title span:last-child {
    background: linear-gradient(45deg, var(--google-yellow), var(--google-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--google-yellow);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.cta-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.cta-btn.secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-btn.tertiary {
    background: var(--google-green);
    color: white;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.hero-illustration {
    position: relative;
    height: 400px;
}

.hero-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    animation: float 6s ease-in-out infinite;
}

.hero-card i {
    font-size: 32px;
    color: var(--google-yellow);
}

.hero-card span {
    font-weight: 600;
    font-size: 14px;
}

.card-1 {
    top: 20px;
    left: 20px;
    animation-delay: 0s;
}

.card-2 {
    top: 100px;
    right: 40px;
    animation-delay: 2s;
}

.card-3 {
    bottom: 60px;
    left: 40px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--google-blue), #3b82f6);
    color: white;
    padding: 120px 2rem 60px;
    text-align: center;
}

.breadcrumb {
    margin-bottom: 1rem;
    opacity: 0.8;
}

.breadcrumb a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.breadcrumb a:hover {
    opacity: 0.7;
}

.breadcrumb span {
    margin: 0 0.5rem;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto;
}

/* Filter Section */
.filter-section {
    background: var(--bg-secondary);
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
}

/* Ad Section */
.ad-section {
    padding: 2rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.ad-section .container {
    text-align: center;
}

/* Quick Access Section */
.quick-access {
    background: var(--bg-primary);
}

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.quick-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quick-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.quick-card.medical::before {
    background: var(--card-medical);
}

.quick-card.engineering::before {
    background: var(--card-engineering);
}

.quick-card.defense::before {
    background: var(--card-defense);
}

.quick-card.commerce::before {
    background: var(--card-commerce);
}

.quick-card.law::before {
    background: var(--card-law);
}

.quick-card.government::before {
    background: var(--card-government);
}

.quick-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.quick-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    margin-bottom: 1.5rem;
}

.quick-card.medical .quick-card-icon {
    background: var(--card-medical);
}

.quick-card.engineering .quick-card-icon {
    background: var(--card-engineering);
}

.quick-card.defense .quick-card-icon {
    background: var(--card-defense);
}

.quick-card.commerce .quick-card-icon {
    background: var(--card-commerce);
}

.quick-card.law .quick-card-icon {
    background: var(--card-law);
}

.quick-card.government .quick-card-icon {
    background: var(--card-government);
}

.quick-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.quick-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.quick-card-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.quick-card:hover .quick-card-arrow {
    color: var(--google-blue);
    transform: translateX(4px);
}

/* Featured Sections */
.featured-sections {
    background: var(--bg-secondary);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.featured-card {
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.featured-thumbnail {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.featured-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.featured-card:hover .featured-thumbnail img {
    transform: scale(1.05);
}

.featured-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(66, 133, 244, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.featured-content {
    padding: 2rem;
}

.featured-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.featured-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.featured-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--google-blue);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.featured-btn:hover {
    background: #3b82f6;
    transform: translateY(-2px);
}

/* Success Stories */
.success-stories {
    background: var(--bg-primary);
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.story-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.story-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.story-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
}

.story-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.story-content {
    text-align: center;
}

.story-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.story-achievement {
    color: var(--google-blue);
    font-weight: 500;
    margin-bottom: 1rem;
}

.story-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-style: italic;
}

/* Latest Updates */
.latest-updates {
    background: var(--bg-secondary);
}

.updates-container {
    max-width: 800px;
    margin: 0 auto;
}

.update-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.update-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.update-date {
    text-align: center;
    min-width: 60px;
}

.date-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--google-blue);
}

.date-month {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.update-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.update-content p {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Exam Cards */
.exams-section {
    background: var(--bg-primary);
}

.exams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.exam-card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.exam-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.exam-card[data-category="medical"]::before {
    background: var(--card-medical);
}

.exam-card[data-category="engineering"]::before {
    background: var(--card-engineering);
}

.exam-card[data-category="law"]::before {
    background: var(--card-law);
}

.exam-card[data-category="defense"]::before {
    background: var(--card-defense);
}

.exam-card[data-category="commerce"]::before {
    background: var(--card-commerce);
}

.exam-card[data-category="agriculture"]::before {
    background: var(--card-agriculture);
}

.exam-card[data-category="design"]::before {
    background: var(--card-design);
}

.exam-card[data-category="paramedical"]::before {
    background: var(--card-paramedical);
}

.exam-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.exam-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.exam-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
}

.exam-icon.medical {
    background: var(--card-medical);
}

.exam-icon.engineering {
    background: var(--card-engineering);
}

.exam-icon.law {
    background: var(--card-law);
}

.exam-icon.defense {
    background: var(--card-defense);
}

.exam-icon.commerce {
    background: var(--card-commerce);
}

.exam-icon.agriculture {
    background: var(--card-agriculture);
}

.exam-icon.design {
    background: var(--card-design);
}

.exam-icon.paramedical {
    background: var(--card-paramedical);
}

.exam-title h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.exam-category {
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.exam-content {
    display: grid;
    gap: 1.5rem;
}

.exam-details {
    display: grid;
    gap: 1rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

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

.detail-item span {
    color: var(--text-secondary);
    line-height: 1.5;
}

.exam-syllabus h4,
.exam-tips h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.exam-syllabus ul,
.exam-tips ul {
    list-style: none;
    padding: 0;
}

.exam-syllabus li,
.exam-tips li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    position: relative;
    padding-left: 1.5rem;
}

.exam-syllabus li:before,
.exam-tips li:before {
    content: '•';
    color: var(--google-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.exam-syllabus li:last-child,
.exam-tips li:last-child {
    border-bottom: none;
}

/* Exam Calendar */
.exam-calendar {
    background: var(--bg-secondary);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.calendar-item {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    display: flex;
    gap: 1rem;
    transition: all 0.3s ease;
}

.calendar-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.calendar-date {
    text-align: center;
    min-width: 60px;
}

.calendar-date .month {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.calendar-date .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--google-blue);
}

.calendar-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.calendar-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Section Styles */
.section {
    padding: 80px 0;
    position: relative;
}

.section:nth-child(even) {
    background: var(--bg-secondary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--google-blue), var(--google-green));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-tab {
    padding: 12px 24px;
    border: 2px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--google-blue);
    border-color: var(--google-blue);
    color: white;
    transform: translateY(-2px);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Card Styles */
.card {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--google-blue), var(--google-green));
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    background: var(--google-blue);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.card-content {
    margin-bottom: 20px;
}

.card-content p {
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0;
}

.card-tag {
    padding: 4px 12px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--border);
}

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

.card-btn {
    padding: 8px 16px;
    background: var(--google-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-btn:hover {
    background: #3b82f6;
    transform: translateY(-1px);
}

/* Exam specific card styles */
.card[data-category="medical"] .card-icon {
    background: var(--card-medical);
}

.card[data-category="engineering"] .card-icon {
    background: var(--card-engineering);
}

.card[data-category="law"] .card-icon {
    background: var(--card-law);
}

.card[data-category="defense"] .card-icon {
    background: var(--card-defense);
}

.card[data-category="other"] .card-icon {
    background: var(--card-other);
}

/* College Categories */
.college-category {
    margin-bottom: 3rem;
}

.college-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
}

/* Roadmaps */
.roadmaps-container {
    max-width: 900px;
    margin: 0 auto;
}

.roadmap-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.roadmap-tab {
    padding: 12px 24px;
    border: 2px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.roadmap-tab:hover,
.roadmap-tab.active {
    background: var(--google-green);
    border-color: var(--google-green);
    color: white;
}

.roadmap-content {
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.roadmap-step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
    position: relative;
}

.roadmap-step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 24px;
    top: 48px;
    bottom: -16px;
    width: 2px;
    background: linear-gradient(180deg, var(--google-blue), var(--google-green));
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--google-blue), var(--google-green));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    padding: 60px 0 20px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--google-blue);
    margin-bottom: 16px;
}

.footer-brand i {
    font-size: 28px;
}

.footer-section h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--google-blue);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}

.social-links a:hover {
    background: var(--google-blue);
    color: white;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Bottom Navigation */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 8px 0;
    z-index: 100;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px 4px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.bottom-nav-item i {
    font-size: 18px;
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--google-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 1rem 60px;
        text-align: center;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-stats {
        justify-content: center;
        gap: 1rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .hero-illustration {
        height: 300px;
    }

    .page-header {
        padding: 100px 1rem 40px;
    }

    .section {
        padding: 60px 0;
    }

    .container {
        padding: 0 1rem;
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .quick-access-grid,
    .featured-grid,
    .stories-grid,
    .exams-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .filter-tabs,
    .roadmap-tabs {
        gap: 0.5rem;
    }

    .filter-tab,
    .roadmap-tab {
        padding: 8px 16px;
        font-size: 14px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .cta-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

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

    .bottom-nav {
        display: flex;
    }

    .lang-toggle, .dark-mode-toggle, .search-toggle {
        width: 48px;
        height: 48px;
    }

    .lang-toggle {
        top: 16px;
        right: 16px;
        font-size: 10px;
    }

    .dark-mode-toggle {
        top: 76px;
        right: 16px;
    }

    .search-toggle {
        bottom: 90px;
        right: 16px;
    }

    .search-container {
        width: 95%;
        margin: 20px;
    }

    .roadmap-content {
        padding: 20px;
    }

    .roadmap-step {
        gap: 16px;
        margin-bottom: 24px;
    }

    .step-number {
        width: 40px;
        height: 40px;
    }

    .exam-card {
        padding: 1.5rem;
    }

    .exam-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .exam-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 1rem;
    }

    .hero {
        padding: 90px 0.5rem 40px;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .section-header p {
        font-size: 1rem;
    }

    .card {
        padding: 20px;
    }

    .hero-card {
        padding: 16px;
    }

    .hero-card i {
        font-size: 24px;
    }

    .hero-card span {
        font-size: 12px;
    }

    .featured-content,
    .story-card,
    .exam-card {
        padding: 1.5rem;
    }

    .quick-card {
        padding: 1.5rem;
    }

    .quick-card-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

/* Print Styles */
@media print {
    .lang-toggle,
    .dark-mode-toggle,
    .search-toggle,
    .search-overlay,
    .header,
    .bottom-nav,
    .hero-illustration {
        display: none !important;
    }

    .hero {
        padding: 2rem 0;
        background: none;
        color: #000;
    }

    .section {
        padding: 1rem 0;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}