/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #1a1a24;
    --bg-card-hover: #222233;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --accent: #e63946;
    --accent-glow: rgba(230, 57, 70, 0.3);
    --accent-subtle: rgba(230, 57, 70, 0.1);
    --border: rgba(255, 255, 255, 0.08);
    --radius: 12px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* === Navigation === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* === Hero === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: 
        linear-gradient(135deg, rgba(10, 10, 15, 0.9) 0%, rgba(10, 10, 15, 0.6) 50%, rgba(10, 10, 15, 0.9) 100%),
        radial-gradient(ellipse at 70% 50%, var(--accent-glow) 0%, transparent 60%),
        var(--bg-primary);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, var(--accent-subtle) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 0 24px;
}

.hero-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(4rem, 12vw, 10rem);
    letter-spacing: 8px;
    line-height: 0.9;
    background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--accent);
    font-weight: 300;
    font-style: italic;
    margin-bottom: 24px;
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
}

.cta-button {
    display: inline-block;
    padding: 14px 36px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--text-secondary);
    font-size: 1.5rem;
}

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

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

.section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: 2px;
}

/* === Philosophy === */
.philosophy {
    background: var(--bg-secondary);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.philosophy-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.philosophy-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.philosophy-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.philosophy-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Generations === */
.generations {
    background: var(--bg-primary);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.gen-card {
    display: flex;
    gap: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.gen-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent);
    opacity: 0;
    transition: var(--transition);
}

.gen-card:hover {
    border-color: var(--accent);
    transform: translateX(4px);
}

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

.gen-badge {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    color: var(--accent);
    min-width: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}

.gen-info h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.gen-specs {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.gen-specs span {
    background: var(--accent-subtle);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.gen-info p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.gen-highlights {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 8px;
}

.gen-highlights li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding-left: 20px;
    position: relative;
}

.gen-highlights li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* === Specs Table === */
.specs {
    background: var(--bg-secondary);
}

.specs-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.specs-table th,
.specs-table td {
    padding: 14px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.specs-table th {
    background: var(--bg-card);
    color: var(--accent);
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.3rem;
    letter-spacing: 1px;
}

.specs-table td:first-child {
    text-align: left;
    font-weight: 500;
    color: var(--text-primary);
}

.specs-table td {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.specs-table tr:hover td {
    background: var(--bg-card-hover);
}

.specs-table tr:last-child td {
    border-bottom: none;
}

/* === Engineering === */
.engineering {
    background: var(--bg-primary);
}

.eng-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.eng-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.eng-card:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-subtle);
}

.eng-card h3 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.eng-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Numbers === */
.numbers {
    background: var(--bg-secondary);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
    text-align: center;
}

.number-card {
    padding: 32px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.number-card:hover {
    border-color: var(--accent);
    transform: scale(1.05);
}

.number-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.number-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* === Community === */
.community {
    background: var(--bg-primary);
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.community-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.community-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

.community-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.community-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* === Quotes === */
.quotes {
    background: var(--bg-secondary);
    text-align: center;
}

.quotes-slider {
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quote {
    position: absolute;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    max-width: 700px;
    padding: 0 24px;
}

.quote.active {
    opacity: 1;
    transform: translateY(0);
}

.quote p {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.quote cite {
    color: var(--accent);
    font-size: 0.95rem;
    font-style: normal;
}

.quote-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.quote-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.quote-dots .dot.active {
    background: var(--accent);
}

/* === Footer === */
.footer {
    background: var(--bg-card);
    padding: 60px 0 24px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links h4 {
    margin-bottom: 16px;
    font-size: 1rem;
}

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

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.95);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .gen-card {
        flex-direction: column;
    }

    .gen-badge {
        font-size: 2rem;
        min-width: auto;
        justify-content: flex-start;
    }

    .philosophy-grid,
    .eng-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .numbers-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .numbers-grid {
        grid-template-columns: 1fr;
    }

    .gen-specs {
        flex-direction: column;
        gap: 8px;
    }

    .gen-specs span {
        display: inline-block;
        width: fit-content;
    }
}

/* === Animations (scroll reveal) === */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}