/* ========================================
   Header & Navigation
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .header.scrolled {
    background: rgba(10, 10, 10, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-shadow: 0 0 15px var(--glow-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

.theme-toggle {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--color-text);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height for mobile */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-image: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?w=1920&h=1080&fit=crop');
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(255, 0, 107, 0.3));
}

.hero-content {
    position: relative;
    z-index: 10;
    color: white;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    animation: bounce 2s ease-in-out infinite;
}

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

/* ========================================
   Class Cards
   ======================================== */

.class-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.class-card-image {
    width: 100%;
    height: 250px;
    background-size: cover;
    background-position: center;
    position: relative;
}

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

.class-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.class-tag.intense {
    background: #FF4500;
}

.class-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.class-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.class-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.class-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ========================================
   Testimonials
   ======================================== */

.testimonials-section {
    background: var(--color-bg-alt);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stars {
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.testimonial-card p {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background-size: cover;
    background-position: center;
}

.testimonial-author strong {
    display: block;
    font-weight: var(--font-weight-semibold);
}

.testimonial-author span {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ========================================
   FAQ Section
   ======================================== */

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

.faq-item {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.faq-question:hover {
    color: var(--color-primary);
}

.faq-question svg {
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    margin: 0;
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
}

.cta-content {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-content h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-secondary {
    background: white;
    color: var(--color-primary);
    border: none;
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

[data-theme="dark"] .footer {
    background: var(--color-surface);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    color: var(--color-primary);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 0 15px var(--glow-color);
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

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

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

.footer-links a {
    opacity: 0.8;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

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

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

/* ========================================
   Quote Component
   ======================================== */

.quote {
    font-size: var(--font-size-lg);
    font-style: italic;
    padding: var(--spacing-lg);
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.quote cite {
    display: block;
    margin-top: var(--spacing-md);
    font-size: var(--font-size-base);
    font-style: normal;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-base);
        pointer-events: none;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

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

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

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

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

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* ========================================
   Social Media Gallery
   ======================================== */

.social-gallery-section {
    background: var(--color-bg);
}

.social-gallery {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
    margin: var(--spacing-xl) 0;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(255, 0, 107, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
    color: white;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.social-gallery-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Mobile: 2 columns */
@media (max-width: 640px) {
    .social-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet: 3 columns */
@media (min-width: 641px) and (max-width: 1024px) {
    .social-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}