:root {
    --onyx: #0D1117;
    --obsidian: #161A22;
    --deep-indigo: #1E2742;
    --teal: #19B3A6;
    --gold: #C9A227;
    --off-white: #EAECEF;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --transition-fast: 150ms ease;
    --transition-normal: 220ms ease;
    --transition-slow: 350ms ease;

    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--onyx);
    color: var(--off-white);
    line-height: 1.6;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--off-white);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    line-height: 1.7;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.6;
    color: rgba(234, 236, 239, 0.9);
}

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

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

a:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 4px;
    border-radius: var(--border-radius-sm);
}

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

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--teal);
    color: var(--onyx);
    padding: 8px;
    z-index: 100;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal);
}

.main-nav.scrolled {
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--off-white);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-text {
    font-family: 'Playfair Display', serif;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--off-white);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

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

.nav-menu a {
    color: var(--off-white);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--teal);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 80%;
}

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

.nav-menu a.active {
    color: var(--teal);
}

@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--obsidian);
        flex-direction: column;
        padding: 5rem var(--spacing-xl) var(--spacing-xl);
        gap: var(--spacing-md);
        align-items: flex-start;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
        transition: right var(--transition-slow);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        width: 100%;
    }
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--gold);
    color: var(--onyx);
    border-color: var(--gold);
}

.btn-primary:hover {
    background: transparent;
    color: var(--gold);
    border-color: var(--gold);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(201, 162, 39, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--teal);
    border-color: var(--teal);
}

.btn-secondary:hover {
    background: var(--teal);
    color: var(--onyx);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(25, 179, 166, 0.3);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn:focus-visible {
    outline: 2px solid var(--teal);
    outline-offset: 4px;
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(13, 17, 23, 0.3) 0%,
        rgba(13, 17, 23, 0.7) 50%,
        rgba(13, 17, 23, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-xl);
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    margin-bottom: var(--spacing-md);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(234, 236, 239, 0.9);
    font-weight: 300;
}

.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%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--off-white);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

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

.wave-divider {
    width: 100%;
    height: 120px;
    display: block;
    margin: -2px 0;
}

.wave-divider.inverted {
    transform: scaleY(-1);
}

.intro-section,
.classes-preview,
.testimonials,
.cta-section {
    padding: var(--spacing-3xl) 0;
}

.intro-section {
    background: var(--deep-indigo);
}

.classes-preview {
    background: var(--onyx);
}

.testimonials {
    background: var(--obsidian);
}

.cta-section {
    background: var(--onyx);
}

.glass-card {
    background: rgba(30, 39, 66, 0.4);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(234, 236, 239, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.intro-card h2 {
    margin-bottom: var(--spacing-md);
}

.intro-card .lead {
    margin-bottom: var(--spacing-xl);
}

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

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

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(25, 179, 166, 0.1);
    border-radius: var(--border-radius-lg);
}

.feature-item h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.feature-item p {
    color: rgba(234, 236, 239, 0.8);
    font-size: 0.95rem;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: rgba(234, 236, 239, 0.7);
    margin-bottom: var(--spacing-xl);
}

.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.class-card {
    background: var(--obsidian);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid rgba(234, 236, 239, 0.05);
}

.class-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.class-image {
    position: relative;
    overflow: hidden;
    height: 240px;
}

.class-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.class-card:hover .class-image img {
    transform: scale(1.1);
}

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

.class-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.class-content p {
    color: rgba(234, 236, 239, 0.8);
    margin-bottom: var(--spacing-md);
}

.class-link {
    color: var(--teal);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition-fast);
}

.class-link:hover {
    gap: 8px;
}

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

.testimonial-card {
    padding: var(--spacing-xl);
}

.testimonial-stars {
    color: var(--gold);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    font-style: italic;
    color: rgba(234, 236, 239, 0.9);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.testimonial-author strong {
    color: var(--off-white);
    font-weight: 600;
}

.testimonial-author span {
    color: rgba(234, 236, 239, 0.6);
    font-size: 0.875rem;
}

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

.cta-card h2 {
    margin-bottom: var(--spacing-md);
}

.cta-card p {
    font-size: 1.125rem;
    color: rgba(234, 236, 239, 0.8);
    margin-bottom: var(--spacing-xl);
}

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

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

.main-footer {
    background: var(--obsidian);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid rgba(234, 236, 239, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--teal);
    font-size: 1.125rem;
}

.footer-section p {
    color: rgba(234, 236, 239, 0.7);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

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

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

.footer-section ul li a {
    color: rgba(234, 236, 239, 0.7);
    transition: color var(--transition-fast);
}

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

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: rgba(234, 236, 239, 0.7);
    line-height: 1.6;
}

.contact-info svg {
    flex-shrink: 0;
    margin-top: 4px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(25, 179, 166, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--teal);
    transform: translateY(-4px);
}

.social-links a svg {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    max-width: 1200px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    border-top: 1px solid rgba(234, 236, 239, 0.1);
    text-align: center;
    color: rgba(234, 236, 239, 0.5);
    font-size: 0.875rem;
}

.cookie-banner {
    position: fixed;
    bottom: -200px;
    left: 0;
    right: 0;
    z-index: 2000;
    background: rgba(22, 26, 34, 0.98);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(234, 236, 239, 0.1);
    padding: var(--spacing-lg);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    transition: bottom var(--transition-slow);
}

.cookie-banner.visible {
    bottom: 0;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.cookie-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.cookie-content p {
    flex: 1;
    min-width: 300px;
    color: rgba(234, 236, 239, 0.8);
    font-size: 0.95rem;
}

.cookie-content a {
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

@media (max-width: 768px) {
    .hero {
        min-height: 500px;
    }

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

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

    .intro-section,
    .classes-preview,
    .testimonials,
    .cta-section {
        padding: var(--spacing-xl) 0;
    }

    .features-grid,
    .classes-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }

    .cookie-buttons .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

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

    .btn {
        width: 100%;
    }
}