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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #141414;
    --bg-card-hover: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.1);
    --accent-glow: rgba(0, 212, 255, 0.15);
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.brand-icon {
    color: var(--accent);
    font-size: 1.3rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

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

.nav-btn {
    background: var(--accent-dim);
    color: var(--accent) !important;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all var(--transition);
}

.nav-btn:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.3);
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.version-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0a;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: #00bfe6;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-secondary);
}

/* Sections */
.section {
    padding: 6rem 2rem;
}

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

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

.section-tag {
    display: inline-block;
    padding: 0.3rem 0.85rem;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    border: 1px solid rgba(0, 212, 255, 0.15);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-card.wide {
    grid-column: span 2;
}

.feature-icon {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-dim);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 212, 255, 0.15);
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.feature-list li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* Architecture Flow */
.architecture-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.flow-step {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    text-align: center;
    min-width: 180px;
}

.flow-label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 0.4rem;
}

.flow-desc {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.flow-arrow {
    color: var(--text-muted);
    font-size: 1.5rem;
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.gallery-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

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

.gallery-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #000;
}

.gallery-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.gallery-info {
    padding: 1.25rem;
}

.gallery-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.gallery-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Specs Grid */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.spec-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all var(--transition);
}

.spec-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    background: var(--bg-card-hover);
}

.spec-icon {
    color: var(--accent);
    margin-bottom: 1.25rem;
    display: flex;
    justify-content: center;
}

.spec-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.spec-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Code Section */
.code-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border);
}

.code-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
}

.code-dot:nth-child(1) { background: #ff5f57; }
.code-dot:nth-child(2) { background: #febc2e; }
.code-dot:nth-child(3) { background: #28c840; }

.code-title {
    margin-left: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

.code-block {
    padding: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--text-secondary);
    overflow-x: auto;
    white-space: pre;
}

.code-comment { color: #555555; }
.code-keyword { color: #00d4ff; }
.code-string { color: #a8e6a3; }

/* CTA Section */
.cta-section {
    padding: 8rem 2rem;
}

.cta-content {
    text-align: center;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 212, 255, 0.03) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 4rem;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    position: relative;
}

.cta-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto 2rem;
    position: relative;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    position: relative;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 3rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-container p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition);
}

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

/* Responsive */
@media (max-width: 1024px) {
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-card.wide {
        grid-column: span 1;
    }
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    .specs-grid {
        grid-template-columns: 1fr;
    }
    .architecture-flow {
        flex-direction: column;
    }
    .flow-arrow {
        transform: rotate(90deg);
    }
    .section-header h2 {
        font-size: 2rem;
    }
    .cta-content {
        padding: 2.5rem 1.5rem;
    }
    .cta-content h2 {
        font-size: 2rem;
    }
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    .footer-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .nav-links a:not(.nav-btn) {
        display: none;
    }
}