/* Base */
:root {
  --bg: #060e20;
  --panel: #0b1630;
  --text: #eaf2ff;
  --muted: #93a7c7;
  --accent: #2563eb;
  --accent-2: #1e40af;
  --border: #13223b;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell,
    Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1200px circle at 10% 10%, #050a12 0%, var(--bg) 60%, #050a12 100%),
    linear-gradient(180deg, rgba(37, 99, 235, 0.03), rgba(17, 24, 39, 0.02));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container { width: min(960px, 100%); margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(8, 12, 24, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}
.site-header .container { padding: 6px 12px; text-align: center; }
.site-header h1 { margin: 0; font-size: 1rem; font-weight: 600; line-height: 1.2; }
.site-header p { display: none; }
/* Top navigation */
.site-nav { display: none; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--text); }

/* Main */
main.container { padding: 24px 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}
.card h2 { margin: 0 0 8px; font-size: 1.25rem; }
.muted { color: var(--muted); margin: 0 0 12px; }

/* Prose (SEO section) */
.prose { line-height: 1.7; }
.prose p { margin: 0 0 12px; }
.prose h3 { margin: 16px 0 8px; font-size: 1.05rem; }
.prose ul { margin: 0 0 12px 18px; }
.prose a { color: var(--muted); text-decoration: underline; }
.prose a:hover { color: var(--text); }

.iframe-wrap { width: 100%; overflow: hidden; border-radius: 8px; }
.iframe-wrap iframe { display: block; width: 100%; min-height: 180px; border: 0; }
.iframe--hero iframe { min-height: 220px; }

/* Hero */
.hero {
  margin-bottom: 24px;
  padding: 20px;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(220px, 320px) 1fr;
  gap: 20px;
  align-items: center;
}
.hero-cover {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.hero-title { margin: 0 0 8px; font-size: clamp(1.4rem, 2vw, 1.8rem); }
.hero-subtitle { margin: 0 0 16px; color: var(--muted); }

/* Fancy card variant */
.card--glass {
  border: 1px solid transparent;
  background:
    linear-gradient(var(--panel), var(--panel)) padding-box,
    linear-gradient(135deg, color-mix(in oklab, var(--accent), transparent 80%), color-mix(in oklab, var(--accent-2), transparent 80%)) border-box;
}

/* Button */
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.2s ease;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.03); }
.btn:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(8, 12, 24, 0.85);
}
.site-footer .container { padding: 20px 16px; text-align: center; }
.site-footer small { color: var(--muted); }

/* Responsive tweaks */
@media (max-width: 640px) {
  .site-header h1 { font-size: 1rem; }
  .card { padding: 12px; }
  .hero { padding: 16px; }
  .hero-grid { grid-template-columns: 1fr; }
}