:root {
    --bg: #0A0A0F;
    --surface: #12121A;
    --surface-alt: #1A1A26;
    --border: rgba(255,255,255,0.06);
    --accent: #00E5FF;
    --accent-alt: #00B4D8;
    --text-primary: #E8E8F0;
    --text-secondary: #A0A0B8;
    --text-tertiary: #606078;
    --success: #22C55E;
    --warning: #F59E0B;
    --error: #EF4444;
    --radius: 12px;
}

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

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

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.8; }

/* ── NAV ─────────────────────────────────── */
.nav {
    position: sticky; top: 0; z-index: 50;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.75rem 2rem;
    background: rgba(10,10,15,0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.nav-brand {
    display: flex; align-items: center; gap: 0.5rem;
    font-weight: 700; font-size: 0.9rem; letter-spacing: 0.04em;
    color: var(--accent);
}
.nav-brand svg { width: 20px; height: 20px; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--text-secondary); font-size: 0.8rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover, .nav-links a.active { color: var(--accent); opacity: 1; }

/* ── HERO ────────────────────────────────── */
.hero {
    text-align: center;
    padding: 6rem 2rem 4rem;
    background: radial-gradient(ellipse at center top, rgba(0,229,255,0.06) 0%, transparent 60%);
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.35rem 0.75rem; border-radius: 999px;
    background: rgba(0,229,255,0.08); border: 1px solid rgba(0,229,255,0.15);
    font-size: 0.7rem; font-weight: 600; color: var(--accent);
    margin-bottom: 1.5rem;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800; line-height: 1.15;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p { font-size: 1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto 2rem; }
.hero-cta {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.85rem 2rem; border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent), var(--accent-alt));
    color: var(--bg); font-weight: 700; font-size: 0.9rem;
    border: none; cursor: pointer;
    box-shadow: 0 4px 24px rgba(0,229,255,0.25);
    transition: transform 0.2s, box-shadow 0.2s;
}
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,229,255,0.35); color: var(--bg); }

/* ── FEATURES ────────────────────────────── */
.features { padding: 4rem 2rem; max-width: 1000px; margin: 0 auto; }
.features h2 { text-align: center; font-size: 1.5rem; margin-bottom: 2.5rem; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; }
.feature-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.5rem; transition: border-color 0.3s, transform 0.2s;
}
.feature-card:hover { border-color: rgba(0,229,255,0.2); transform: translateY(-2px); }
.feature-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.feature-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.4rem; }
.feature-card p { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.6; }

/* ── PRICING ─────────────────────────────── */
.pricing { padding: 4rem 2rem; text-align: center; }
.pricing h2 { font-size: 1.5rem; margin-bottom: 2rem; }
.pricing-cards { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; max-width: 700px; margin: 0 auto; }
.pricing-card {
    flex: 1; min-width: 280px; max-width: 320px;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 2rem 1.5rem; text-align: left;
}
.pricing-card.featured { border-color: var(--accent); box-shadow: 0 0 40px rgba(0,229,255,0.08); }
.pricing-card .tier { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-tertiary); font-weight: 600; }
.pricing-card .price { font-size: 2rem; font-weight: 800; margin: 0.5rem 0; }
.pricing-card .price span { font-size: 0.8rem; font-weight: 400; color: var(--text-tertiary); }
.pricing-card ul { list-style: none; margin: 1.25rem 0; }
.pricing-card ul li { font-size: 0.8rem; color: var(--text-secondary); padding: 0.3rem 0; padding-left: 1.25rem; position: relative; }
.pricing-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 700; }

/* ── LEGAL / PAGE CONTENT ────────────────── */
.page-content {
    max-width: 720px; margin: 0 auto; padding: 3rem 2rem 4rem;
}
.page-content h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.page-content .subtitle { font-size: 0.8rem; color: var(--text-tertiary); margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.page-content h2 { font-size: 1rem; font-weight: 700; margin: 2rem 0 0.75rem; color: var(--text-primary); }
.page-content p { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.75rem; }
.page-content ul { list-style: none; padding: 0; margin: 0.75rem 0; }
.page-content ul li { padding: 0.35rem 0 0.35rem 1.25rem; font-size: 0.85rem; color: var(--text-secondary); position: relative; }
.page-content ul li::before { content: "›"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.legal-highlight {
    background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
    padding: 1rem 1.25rem; margin: 1rem 0; font-size: 0.8rem;
}
.legal-warning {
    background: rgba(245,158,11,0.05); border: 1px solid rgba(245,158,11,0.15);
    border-radius: 8px; padding: 1rem 1.25rem; margin: 1rem 0;
    color: var(--warning); font-weight: 600; font-size: 0.8rem;
}

/* ── DOWNLOAD PAGE ───────────────────────── */
.download-hero {
    text-align: center; padding: 5rem 2rem 3rem;
    background: radial-gradient(ellipse at center top, rgba(0,229,255,0.05) 0%, transparent 60%);
}
.download-hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.75rem; }
.download-hero p { color: var(--text-secondary); max-width: 480px; margin: 0 auto 2rem; font-size: 0.95rem; }
.download-btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 1rem 2.5rem; border-radius: var(--radius);
    background: linear-gradient(135deg, var(--accent), var(--accent-alt));
    color: var(--bg); font-weight: 700; font-size: 1rem;
    border: none; cursor: pointer;
    box-shadow: 0 4px 24px rgba(0,229,255,0.25);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
}
.download-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,229,255,0.35); color: var(--bg); }
.download-meta { margin-top: 1.5rem; font-size: 0.75rem; color: var(--text-tertiary); }
.sys-reqs {
    max-width: 500px; margin: 3rem auto; text-align: left;
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem;
}
.sys-reqs h3 { font-size: 0.85rem; font-weight: 700; margin-bottom: 0.75rem; }
.sys-reqs li { font-size: 0.8rem; color: var(--text-secondary); padding: 0.25rem 0; }

/* ── FOOTER ──────────────────────────────── */
.footer {
    text-align: center; padding: 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem; color: var(--text-tertiary);
}
.footer-links { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 0.75rem; }
.footer-links a { color: var(--text-tertiary); font-size: 0.75rem; }
.footer-links a:hover { color: var(--accent); }

/* ── RESPONSIVE ──────────────────────────── */
@media (max-width: 640px) {
    .nav { padding: 0.75rem 1rem; }
    .nav-links { gap: 1rem; }
    .hero { padding: 4rem 1.5rem 3rem; }
    .features, .pricing { padding: 3rem 1.5rem; }
    .page-content { padding: 2rem 1.25rem 3rem; }
}