:root {
  --bg: #F1F3F7;
  --card: #FFFFFF;
  --ink: #141B2B;
  --muted: #5A6478;
  --line: #D3D9E3;
  --brand: #14284B;
  --brand-ink: #F3F5FA;
  --accent: #F2B705;
  --accent-ink: #1C1600;
  --good: #2C7A4B;
  --warn: #B4531A;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B0F17;
    --card: #151C29;
    --ink: #E6EAF2;
    --muted: #97A1B3;
    --line: #283247;
    --brand: #18294A;
    --good: #5CBD85;
    --warn: #E48B55;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
a { color: inherit; }
header { background: var(--brand); color: var(--brand-ink); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.bar { display: flex; align-items: center; gap: 10px; padding: 16px 0; }
.mark { width: 32px; height: 32px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 800; }
.name { font-weight: 800; font-size: 22px; text-decoration: none; }
nav { margin-left: auto; display: flex; gap: 16px; font-size: 15px; }
nav a { text-decoration: none; opacity: .9; }
.hero { padding: 40px 0 48px; }
.hero h1 { font-size: 40px; line-height: 1.1; margin: 0 0 12px; }
.hero p { font-size: 19px; opacity: .9; margin: 0 0 24px; max-width: 34em; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 800; padding: 14px 22px; border-radius: 14px; text-decoration: none; border: 0; font-size: 17px; cursor: pointer; }
main { padding: 32px 0 56px; }
main h1 { font-size: 32px; margin: 0 0 6px; }
main h2 { font-size: 21px; margin: 28px 0 8px; }
.updated { color: var(--muted); margin: 0 0 20px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.note { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; color: var(--muted); font-size: 15px; }
form { display: grid; gap: 12px; max-width: 420px; }
label { font-weight: 600; font-size: 15px; }
input { font: inherit; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--ink); width: 100%; }
.msg { font-weight: 600; }
.msg.ok { color: var(--good); }
.msg.err { color: var(--warn); }
footer { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: 14px; }
footer a { margin-right: 14px; }
@media (max-width: 520px) { .hero h1 { font-size: 32px; } nav { gap: 12px; font-size: 14px; } }