/* Basic reset */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }
figure, figcaption { margin: 0; }

:root {
  --bg: #0b0c10;
  --panel: #121317;
  --text: #e6e6e6;
  --muted: #b7b7b7;
  --accent: #5cc8ff;
  --accent-2: #8ae6cf;
  --border: #23252c;
  --shadow: rgba(0,0,0,0.25);
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #0b0c10 0%, #0d0f15 100%);
  color: var(--text);
  line-height: 1.55;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11,12,16,0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand .logo { font-size: 20px; }
.brand .title { font-weight: 700; letter-spacing: 0.4px; }

.nav { display: flex; gap: 14px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 8px;
  border-radius: 6px;
}
.nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

/* Hero */
.hero {
  padding: 72px 0 40px;
  background: radial-gradient(1200px 400px at 50% -50px, rgba(92,200,255,0.20), transparent 60%),
              radial-gradient(800px 300px at 20% 20%, rgba(138,230,207,0.16), transparent 60%);
}
.hero h1 { font-size: 40px; margin: 0 0 10px; }
.subtitle { color: var(--muted); margin: 0 0 20px; max-width: 800px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  background: #151821;
  box-shadow: 0 10px 20px var(--shadow);
}
.btn.primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #0a0c10; font-weight: 700; }
.btn:hover { transform: translateY(-1px); }

/* Sections */
.section { padding: 48px 0; }
.section.alt { background: #0e1016; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { margin: 0 0 14px; font-size: 28px; }
.section p { margin: 0 0 14px; }

.key-points, .bullets { margin: 12px 0 0; padding-left: 18px; }
.key-points li, .bullets li { margin: 6px 0; }

.figure { margin: 18px 0; }
.figure img { border: 1px solid var(--border); border-radius: 10px; background: #0b0e14; }
.figure figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; text-align: center; }

.two-col { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 24px; align-items: start; }
.figure.side img { width: 100%; }

.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 10px; }
.card {
  background: #12141c;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 6px 14px var(--shadow);
}
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

.footnote p { color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: #0b0c10; }
.site-footer .container { display: flex; gap: 10px; align-items: center; justify-content: center; padding: 18px 20px; color: var(--muted); font-size: 14px; }
.site-footer a { color: var(--accent); text-decoration: none; }

/* Responsive */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .header-inner { height: auto; padding: 10px 0; gap: 10px; align-items: flex-start; }
  .nav { flex-wrap: wrap; }
  .hero h1 { font-size: 32px; }
  .grid { grid-template-columns: 1fr; }
}