/* Shared styles: public pages and the admin console. No external fonts or scripts. */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2330;
  --muted: #5d6778;
  --border: #dde1e8;
  --accent: #2458d6;
  --accent-text: #ffffff;
  --accent-soft: #e8eefc;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --ok: #1f7a4a;
  --ok-soft: #e6f4ec;
  --warn: #8a5a00;
  --warn-soft: #fdf3dc;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318;
    --surface: #171c23;
    --text: #e6e9ee;
    --muted: #9aa4b2;
    --border: #2a313b;
    --accent: #6b93ff;
    --accent-text: #0b1020;
    --accent-soft: #1b2744;
    --danger: #ff7b70;
    --danger-soft: #3a1714;
    --ok: #57c78b;
    --ok-soft: #13301f;
    --warn: #f0b64a;
    --warn-soft: #33270d;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); line-height: 1.5; font-size: 16px; }
a { color: var(--accent); }
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar .wrap { display: flex; align-items: center; min-height: 56px; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: 0.01em; }
main.wrap { padding-top: 32px; padding-bottom: 48px; }
.foot { color: var(--muted); font-size: 13px; padding-bottom: 32px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 12px; }
h2 { font-size: 20px; margin: 0 0 12px; }
h3 { font-size: 16px; margin: 0 0 8px; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); max-width: 640px; }
.hero { max-width: 760px; }
.buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.btn {
  display: inline-flex; flex-direction: column; align-items: flex-start; justify-content: center;
  gap: 2px; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); text-decoration: none; font: inherit; font-weight: 600;
  cursor: pointer; min-height: 40px;
}
.btn:hover { border-color: var(--accent); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-disabled { opacity: 0.55; cursor: not-allowed; }
.btn-small { padding: 4px 10px; min-height: 30px; font-size: 14px; }
.btn-sub { font-weight: 400; font-size: 13px; opacity: 0.85; }
.buttons .btn { min-width: 240px; padding: 14px 20px; }
@media (max-width: 560px) {
  .buttons .btn { width: 100%; min-width: 0; }
  h1 { font-size: 24px; }
}