:root {
    --color-bg: #0f1117;
    --color-surface: #1a1d27;
    --color-border: #2a2d3a;
    --color-text: #e4e4e7;
    --color-text-muted: #a1a1aa;
    --color-accent: #3b82f6;
    --color-accent-hover: #2563eb;
    --color-gold: #d4a843;
    --font-sans: system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', monospace;
    --max-width: 960px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--color-border);
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gold);
    text-decoration: none;
    letter-spacing: 0.02em;
}

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

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.15s;
}

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

/* Main content */
main {
    flex: 1;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero */
.hero {
    padding: 6rem 0 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-gold);
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.subtitle {
    max-width: 540px;
    margin: 0 auto 2rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

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

/* Hero screenshot */
.hero-screenshot {
    text-align: center;
    padding: 0 0 3rem;
}

.hero-screenshot .screenshot {
    max-width: 100%;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background 0.15s, color 0.15s;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

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

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

.btn-secondary:hover {
    border-color: var(--color-text-muted);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem 0 4rem;
}

.feature {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
}

.feature h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.feature p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Page content */
.page-content {
    padding: 3rem 0 4rem;
}

.page-content h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-content h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 2rem 0 0.75rem;
    color: var(--color-text);
}

.page-content p, .page-content li {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.page-content ol, .page-content ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

/* Download grid */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.download-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
}

.download-card h3 {
    margin-bottom: 0.5rem;
}

.download-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0.75rem;
}

.badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: var(--color-border);
    color: var(--color-text-muted);
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 2rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 640px) {
    .hero h1 {
        font-size: 2.5rem;
    }

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

    .site-nav {
        padding: 1rem;
    }

    main {
        padding: 0 1rem;
    }
}