:root {
    --primary-color: #007AFF;
    --primary-dark: #0051D5;
    --secondary-color: #5856D6;
    --accent-color: #FF9500;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --background: #FFFFFF;
    --surface: #F5F5F7;
    --border: #D2D2D7;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient: linear-gradient(135deg, #007AFF, #5856D6);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Helvetica', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-logo img {
    height: 40px;
    width: 40px;
    border-radius: 8px;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.nav-active {
    color: var(--primary-color);
}

.nav-menu a.nav-active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient);
    border-radius: 1px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F5F7FA 0%, #C3CFE2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 40%, rgba(0, 122, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(88, 86, 214, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 100px;
    height: 100px;
    background: rgba(0, 122, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    z-index: 1;
    position: relative;
}

.hero-content::before {
    content: '📚';
    position: absolute;
    top: 15%;
    left: 10%;
    font-size: 2rem;
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
    animation-delay: 2s;
}

.hero-content::after {
    content: '🎯';
    position: absolute;
    bottom: 20%;
    right: 15%;
    font-size: 2rem;
    opacity: 0.3;
    animation: float 7s ease-in-out infinite;
    animation-delay: 4s;
}

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

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.typing-text {
    color: var(--primary-color);
    animation: fadeInUp 1s ease-out 0.5s both;
    background: linear-gradient(135deg, #007AFF, #5856D6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: var(--text-secondary);
    max-width: 600px;
    animation: fadeInUp 1s ease-out 0.7s both;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease-out 0.9s both;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(0, 122, 255, 0.39);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px 0 rgba(0, 122, 255, 0.5);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: #EBEBEB;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.score-stats {
    display: flex;
    gap: 2rem;
    animation: fadeInUp 1s ease-out 1.1s both;
}

.stat {
    text-align: center;
}

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

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease-out 0.5s both;
}

.floating-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    max-width: 350px;
    animation: float 6s ease-in-out infinite;
}

.floating-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.stream-preview {
    background: var(--surface);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    text-align: center;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading {
    color: var(--text-secondary);
    animation: pulse 2s infinite;
}

.stream-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.stream-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(45deg);
    margin: 0.5rem auto;
}

/* Page Header Styles */
.page-header {
    padding: 4rem 0 2rem;
    text-align: center;
    background: linear-gradient(135deg, #F5F7FA 0%, #C3CFE2 100%);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Sections */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.features {
    padding: 6rem 0;
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.latest-content {
    padding: 6rem 0;
    background: var(--surface);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.content-card {
    background: white;
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.content-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

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

.content-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta {
    padding: 3rem 0;
    background: var(--gradient);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-logo img {
    height: 40px;
    width: 40px;
    border-radius: 8px;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: var(--transition);
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* YouTube Section */
.youtube-section {
    padding: 4rem 0;
    background: #f2f2f7;
}

.youtube-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.youtube-header {
    margin-bottom: 3rem;
}

.youtube-header h2 {
    font-size: 2.25rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.youtube-header p {
    font-size: 1.125rem;
    color: #86868b;
    font-weight: 400;
}

.youtube-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid #e5e5e7;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
}

.youtube-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    border-color: #d1d1d6;
}

.youtube-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.youtube-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #FF0000;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.youtube-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.youtube-details p {
    font-size: 0.9375rem;
    color: #515154;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.youtube-features {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    background: #f2f2f7;
    color: #515154;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.youtube-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    background: #FF0000;
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.youtube-btn:hover {
    background: #CC0000;
    transform: translateY(-1px);
    box-shadow: 0 6px 12px rgba(255, 0, 0, 0.3);
}

.youtube-btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.youtube-btn:hover svg {
    transform: translate(2px, -2px);
}

/* Mobile responsiveness for YouTube section */
@media (max-width: 768px) {
    .youtube-header h2 {
        font-size: 1.875rem;
    }
    
    .youtube-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .youtube-info {
        flex-direction: column;
        text-align: center;
    }
    
    .youtube-features {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .youtube-section {
        padding: 3rem 0;
    }
    
    .youtube-header {
        margin-bottom: 2rem;
    }
    
    .youtube-header h2 {
        font-size: 1.5rem;
    }
    
    .youtube-card {
        padding: 1.25rem;
        margin: 0 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.7;
    }
    50% { 
        transform: translateY(-20px) rotate(180deg); 
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .score-stats {
        justify-content: center;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .youtube-card {
        padding: 3rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .score-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .floating-card {
        max-width: 300px;
        padding: 1.5rem;
    }
    
    .youtube-card {
        padding: 2rem 1rem;
    }
}

/* Responsive adjustments for new pages */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .stream-container {
        grid-template-columns: 1fr;
    }
    
    .schedule-card {
        flex-direction: column;
        text-align: center;
    }
    
    .video-filters {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .about-hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-title {
        font-size: 2.5rem;
    }
    
    .founder-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .founder-links {
        justify-content: center;
    }
    
    .youtube-stats {
        gap: 1.5rem;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 3rem;
    }
    
    .timeline-marker {
        width: 40px;
        height: 40px;
        left: -5px;
    }
    
    .timeline-icon {
        font-size: 1rem;
    }
}

/* Resources Page - Apple-like Design */
.resources-hero {
    padding: 6rem 0 4rem;
    background: linear-gradient(135deg, #f8f9fc 0%, #ffffff 100%);
    text-align: center;
}

.resources-hero .hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1d1d1f;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.resources-hero .hero-subtitle {
    font-size: 1.25rem;
    color: #86868b;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

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

.section-header .section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.section-header .section-description {
    font-size: 1.125rem;
    color: #86868b;
    font-weight: 400;
}

/* Official Resources Section */
.official-resources {
    padding: 5rem 0;
    background: #ffffff;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.resource-card.main-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid #e5e5e7;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    max-width: 100%;
}

.resource-card.main-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #007AFF 0%, #34C759 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.resource-card.main-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #d1d1d6;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.resource-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-icon.college-board {
    background: linear-gradient(135deg, #007AFF 0%, #0056CC 100%);
    color: white;
}

.resource-icon.khan-academy {
    background: linear-gradient(135deg, #34C759 0%, #248A3D 100%);
    color: white;
}

.resource-icon svg {
    width: 14px;
    height: 14px;
}

.card-title-group {
    flex: 1;
}

.card-title-group h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1d1d1f;
    margin: 0 0 0.25rem 0;
    letter-spacing: -0.01em;
}

.card-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-badge.free {
    background: #e8f5e8;
    color: #34c759;
}

.card-badge {
    background: #e3f2fd;
    color: #007AFF;
}

.card-description {
    font-size: 0.875rem;
    color: #515154;
    line-height: 1.4;
    margin-bottom: 1rem;
}

.card-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #515154;
}

.feature-icon {
    font-size: 0.75rem;
}

.resource-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
}

.resource-btn.primary {
    background: #007AFF;
    color: white;
}

.resource-btn.primary:hover {
    background: #0056CC;
    transform: translateY(-1px);
}

.resource-btn.secondary {
    background: #f2f2f7;
    color: #1d1d1f;
}

.resource-btn.secondary:hover {
    background: #e5e5ea;
    transform: translateY(-1px);
}

.resource-btn svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.resource-btn:hover svg {
    transform: translate(2px, -2px);
}

/* Study Guidance Section */
.study-guidance {
    padding: 5rem 0;
    background: #f2f2f7;
}

.tips-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.tip-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid #e5e5e7;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
}

.tip-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    border-color: #d1d1d6;
}

.tip-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, #f2f2f7 0%, #e5e5ea 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: #007AFF;
}

.tip-icon svg {
    width: 18px;
    height: 18px;
}

.tip-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.tip-card p {
    font-size: 0.9375rem;
    color: #515154;
    line-height: 1.5;
    margin: 0;
}

/* Video Content Section */
.video-content {
    padding: 4rem 0;
    background: #ffffff;
}

.video-card {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, #1d1d1f 0%, #2d2d30 100%);
    border-radius: 20px;
    padding: 3rem;
    color: white;
    text-align: center;
}

.video-content-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.video-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.video-icon svg {
    width: 22px;
    height: 22px;
    color: white;
}

.video-text h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.video-text p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* CTA Section */
.resources-cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fc 0%, #ffffff 100%);
}

.cta-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #1d1d1f;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.cta-content p {
    font-size: 1.125rem;
    color: #86868b;
    margin-bottom: 2.5rem;
    line-height: 1.5;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 160px;
    justify-content: center;
}

.cta-btn.primary {
    background: #007AFF;
    color: white;
}

.cta-btn.primary:hover {
    background: #0056CC;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 122, 255, 0.3);
}

.cta-btn.secondary {
    background: #34C759;
    color: white;
}

.cta-btn.secondary:hover {
    background: #248A3D;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(52, 199, 89, 0.3);
}

.cta-btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.cta-btn:hover svg {
    transform: translate(2px, -2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .resources-hero .hero-title {
        font-size: 2.5rem;
    }
    
    .section-header .section-title {
        font-size: 2rem;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: 500px;
    }
    
    .resource-card.main-card {
        padding: 1.25rem;
    }
    
    .tips-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .tip-card {
        padding: 1.5rem;
    }
    
    .video-card {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 480px) {
    .resources-hero {
        padding: 4rem 0 3rem;
    }
    
    .resources-hero .hero-title {
        font-size: 2rem;
    }
    
    .official-resources, .study-guidance, .resources-cta {
        padding: 3rem 0;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .resources-grid {
        max-width: 100%;
        margin: 0 auto;
        padding: 0 1rem;
    }
    
    .resource-card.main-card {
        padding: 1rem;
    }
    
    .card-header {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .video-content-wrapper {
        gap: 1rem;
    }
    
    .video-text h3 {
        font-size: 1.5rem;
    }
}

/* Animation classes for scroll reveal */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
}

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