:root {
  --bg: #ffffff;
  --bg-elev: #f6f7f9;
  --fg: #111318;
  --fg-muted: #5b6270;
  --border: #e2e5ea;
  --accent: #2f6fed;
  --accent-fg: #ffffff;
  --up: #16a34a;
  --down: #dc2626;
  --radius: 10px;
  --maxw: 960px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115; --bg-elev: #181b22; --fg: #e8eaf0; --fg-muted: #9aa3b2; --border: #2a2f3a; --accent: #5b8cff; --accent-fg: #0f1115;
  }
}
:root[data-theme="light"] {
  color-scheme: light;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115; --bg-elev: #181b22; --fg: #e8eaf0; --fg-muted: #9aa3b2; --border: #2a2f3a; --accent: #5b8cff; --accent-fg: #0f1115;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.site-header, .site-main, .site-footer { max-width: var(--maxw); margin: 0 auto; padding-inline: 16px; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-block: 12px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--fg); font-size: 1.15rem; }
.site-nav { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.site-nav a { text-decoration: none; }
.site-main { padding-block: 24px 48px; }
.site-footer { color: var(--fg-muted); font-size: 0.9rem; padding-block: 24px; border-top: 1px solid var(--border); }
.inline { display: inline; }
.linklike { display: inline-flex; align-items: center; min-height: 44px; background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.button { display: inline-flex; align-items: center; justify-content: center; background: var(--accent); color: var(--accent-fg); border: 0; border-radius: var(--radius); padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; min-height: 44px; }
.button.small { padding: 6px 12px; min-height: 44px; }
.button.secondary { background: var(--bg-elev); color: var(--fg); border: 1px solid var(--border); }
.button.danger { background: var(--down); color: #fff; }
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stack { display: grid; gap: 12px; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
label { display: grid; gap: 4px; font-size: 0.9rem; color: var(--fg-muted); }
input, select { font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-height: 44px; }
.error { color: var(--down); }
.muted { color: var(--fg-muted); }
.up { color: var(--up); } .down { color: var(--down); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
@media (max-width: 640px) {
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  tr { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; padding: 8px; }
  td { border: 0; padding: 4px 8px; }
  td::before { content: attr(data-label); display: block; font-size: 0.8rem; color: var(--fg-muted); }
}
.hero { padding-block: 32px; }
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0 0 12px; }
.login-buttons { display: grid; gap: 12px; max-width: 360px; }
.login-buttons[hidden] { display: none; }
@media (min-width: 1024px) {
  :root { --maxw: 1100px; }
  .site-header, .site-main, .site-footer { padding-inline: 24px; }
  .grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
}