:root {
  --bg: #0a0c0b;
  --surface: #121614;
  --line: #262d29;
  --text: #f2f6ef;
  --text2: #a6b0a9;
  --volt: #c8ff2e;
  --pulse: #ff7a90;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root { --bg: #fbfcf9; --surface: #ffffff; --line: #dfe5df; --text: #0d110f; --text2: #4c5650; --volt: #4a7300; --pulse: #c0233f; color-scheme: light; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.brand { font-weight: 900; letter-spacing: .06em; color: var(--volt); text-decoration: none; font-size: 22px; }
nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
nav a { color: var(--text2); text-decoration: none; font-size: 14px; }
nav a:hover, nav a[aria-current] { color: var(--text); }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 4px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
h3 { font-size: 16px; margin: 20px 0 6px; }
p, li { color: var(--text); }
.muted { color: var(--text2); font-size: 14px; }
.note { border: 1px solid var(--line); background: var(--surface); border-radius: 14px; padding: 12px 16px; color: var(--text2); font-size: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--text2); font-weight: 600; }
a { color: var(--volt); }
form { display: grid; gap: 12px; max-width: 420px; }
label { display: grid; gap: 6px; font-size: 14px; color: var(--text2); }
input { height: 46px; border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--text); padding: 0 14px; font-size: 16px; }
button { height: 48px; border: 0; border-radius: 14px; font-weight: 700; font-size: 16px; cursor: pointer; background: var(--volt); color: #0a0c0b; }
button.danger { background: var(--pulse); }
button:disabled { opacity: .45; cursor: not-allowed; }
.msg { min-height: 22px; font-size: 14px; }
.err { color: var(--pulse); }
footer { margin-top: 48px; color: var(--text2); font-size: 13px; }
.cta { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 14px; font-weight: 700; text-decoration: none; background: var(--volt); color: #0a0c0b; }
.msg.err { color: var(--pulse); }
[hidden] { display: none !important; }