:root {
  --bg: #070b14;
  --panel: #101826;
  --line: #243049;
  --text: #e8eef8;
  --muted: #9aabc4;
  --accent: #3ee0c5;
  --accent-2: #7aa2ff;
  --warn: #f0c36a;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #16304a 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 6vw; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: rgba(7,11,20,.9); backdrop-filter: blur(8px); z-index: 5;
}
.brand { font-weight: 700; letter-spacing: .04em; color: var(--text); }
.brand span { color: var(--accent); }
nav a { margin-left: 18px; color: var(--muted); font-size: 14px; }
nav a:hover { color: var(--text); text-decoration: none; }
main { max-width: 980px; margin: 0 auto; padding: 48px 22px 80px; }
.kicker { color: var(--accent); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; }
h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.08; margin: 10px 0 16px; }
h2 { margin-top: 42px; font-size: 28px; }
.lede { font-size: 20px; color: #d5deec; max-width: 740px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 24px; }
.card, .faq, .callout {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px 18px 8px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p, .faq p { color: var(--muted); }
.btn {
  display: inline-block; background: var(--accent); color: #04140f; font-weight: 700;
  padding: 12px 16px; border-radius: 10px; margin-right: 10px; margin-top: 8px;
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.callout { margin-top: 28px; border-color: #2e5a4e; }
.note { color: var(--warn); font-size: 14px; }
footer { border-top: 1px solid var(--line); padding: 28px 6vw 48px; color: var(--muted); font-size: 14px; }
table { width: 100%; border-collapse: collapse; margin: 16px 0 28px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
code { color: var(--accent-2); }