:root {
  --color-bg: #0b1220;
  --color-surface: #0f172a;
  --color-text: #e5e7eb;
  --color-muted: #94a3b8;
  --color-primary: #2563eb;
  --color-primary-600: #1d4ed8;
  --color-accent: #22c55e;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,0,0,0.25);
  --maxw: 1100px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--color-text);
  background: radial-gradient(1200px 800px at 10% -10%, rgba(37,99,235,0.18), transparent 40%),
              radial-gradient(800px 800px at 90% 10%, rgba(34,197,94,0.16), transparent 40%),
              var(--color-bg);
  line-height: 1.6;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(180%) blur(8px); background: rgba(10,16,30,0.6); border-bottom: 1px solid rgba(148,163,184,0.14);} 
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--color-text); font-weight: 700; }
.brand img { height: 28px; width: auto; }
.brand-name { font-family: 'Anta', sans-serif; font-weight: 700; letter-spacing: 0.01em; }

.nav-links { display: flex; gap: 16px; align-items: center; }
.nav-links a { color: var(--color-muted); text-decoration: none; padding: 8px 12px; border-radius: 10px; }
.nav-links a:hover { color: var(--color-text); background: rgba(148,163,184,0.12); }
.nav-links a.active { color: white; background: rgba(37,99,235,0.2); }

.cta-btn { background: var(--color-primary); color: white; padding: 10px 16px; border: 0; border-radius: 12px; text-decoration: none; font-weight: 600; box-shadow: var(--shadow); }
.cta-btn:hover { background: var(--color-primary-600); }

.hero { padding: 64px 0 24px; }
.hero .lead { color: var(--color-muted); max-width: 720px; font-size: 1.1rem; }
.hero h1 { font-size: clamp(2rem, 2.6vw + 1rem, 3rem); line-height: 1.2; margin: 0 0 14px; }
.slogan { font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, 'Liberation Mono', 'Courier New', monospace; font-size: 1.05rem; letter-spacing: 0.01em; color: var(--color-muted); margin-top: 6px; }

.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.badge { border: 1px solid rgba(148,163,184,0.2); color: var(--color-muted); padding: 6px 10px; border-radius: 999px; font-size: 0.9rem; backdrop-filter: blur(6px); background: rgba(15,23,42,0.6); }

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-3 { grid-template-columns: 1fr; } }

.card { background: rgba(15,23,42,0.7); border: 1px solid rgba(148,163,184,0.14); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card h3 { margin-top: 0; }

.section { padding: 36px 0; }
.section h2 { font-size: 1.6rem; margin: 0 0 14px; }
.section .muted { color: var(--color-muted); }

.footer { margin-top: 40px; padding: 26px 0; color: var(--color-muted); border-top: 1px solid rgba(148,163,184,0.14); }
.footer a { color: var(--color-muted); text-decoration: none; }
.footer a:hover { color: var(--color-text); }

.input, textarea, select { width: 100%; background: rgba(15,23,42,0.8); border: 1px solid rgba(148,163,184,0.25); color: var(--color-text); padding: 12px 14px; border-radius: 12px; }
label { display: block; margin: 8px 0 6px; }
button { cursor: pointer; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border: 1px solid rgba(148,163,184,0.2); padding: 10px; text-align: left; }

/* --- Hero with media --- */
.hero-wrap { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: center; }
.hero-copy { }
.hero-media { border: 1px solid rgba(148,163,184,0.14); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: linear-gradient(180deg, rgba(15,23,42,0.6), rgba(15,23,42,0.2)); }
.hero-media img { display: block; width: 100%; height: auto; }
@media (max-width: 900px) { .hero-wrap { grid-template-columns: 1fr; } }

/* Accessibility utility */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,1px,1px); border: 0; }