:root {
    --bg-dark: #0b0f19;
    --bg-card: #111827;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #10b981;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --border: #1f2937;
}
* { box-sizing: border-box; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
body { background-color: var(--bg-dark); color: var(--text-main); line-height: 1.6; }
a { color: var(--text-main); text-decoration: none; transition: 0.2s; }
a:hover { color: var(--primary); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
header { border-bottom: 1px solid var(--border); background: rgba(11, 15, 25, 0.85); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
.nav-bar { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.logo { font-size: 1.35rem; font-weight: 700; display: flex; align-items: center; gap: 10px; color: #fff; }
.logo span { background: var(--primary); padding: 4px 10px; border-radius: 6px; font-size: 0.85rem; }
.nav-links { display: flex; gap: 28px; font-size: 0.95rem; }
.btn { background: var(--primary); color: #fff; padding: 10px 20px; border-radius: 6px; font-weight: 500; border: none; cursor: pointer; display: inline-block; }
.btn:hover { background: var(--primary-hover); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-main); }
.btn-outline:hover { border-color: var(--primary); }
.hero { padding: 90px 0 70px; text-align: center; border-bottom: 1px solid var(--border); background: radial-gradient(circle at top, #1e293b 0%, #0b0f19 70%); }
.badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.3); color: var(--accent); padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; margin-bottom: 24px; }
.dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; display: inline-block; box-shadow: 0 0 8px var(--accent); }
.hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 20px; letter-spacing: -0.02em; }
.hero p { color: var(--text-muted); max-width: 680px; margin: 0 auto 36px; font-size: 1.15rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; padding: 60px 0; }
.card { background: var(--bg-card); border: 1px solid var(--border); padding: 28px; border-radius: 12px; }
.card h3 { margin-bottom: 12px; font-size: 1.2rem; color: #fff; }
.card p { color: var(--text-muted); font-size: 0.95rem; }
.metrics-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; margin: 40px 0; }
.metrics-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.stat-item { background: var(--bg-dark); padding: 20px; border-radius: 8px; border: 1px solid var(--border); }
.stat-label { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 6px; }
.stat-value { font-size: 1.65rem; font-weight: 700; color: #fff; font-family: monospace; }
.code-block { background: #000; border: 1px solid var(--border); padding: 20px; border-radius: 8px; font-family: monospace; font-size: 0.9rem; color: #a5b4fc; overflow-x: auto; margin-top: 20px; }
.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.75); align-items: center; justify-content: center; z-index: 200; }
.modal-content { background: var(--bg-card); border: 1px solid var(--border); padding: 32px; border-radius: 12px; width: 100%; max-width: 420px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 0.9rem; color: var(--text-muted); }
.form-group input { width: 100%; padding: 10px 12px; background: var(--bg-dark); border: 1px solid var(--border); border-radius: 6px; color: #fff; }
.alert { display: none; padding: 12px; background: rgba(239, 68, 68, 0.15); border: 1px solid #ef4444; color: #fca5a5; border-radius: 6px; font-size: 0.85rem; margin-bottom: 16px; }
footer { border-top: 1px solid var(--border); padding: 48px 0; margin-top: 60px; color: var(--text-muted); font-size: 0.9rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }