:root {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-sunken: #131b2e;
  --color-border: #334155;
  --color-border-input: #7b8aa0;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-accent: #1f6aa5;
  --color-accent-text: #38bdf8;
  --color-on-accent: #ffffff;
  --color-danger: #b91c1c;
  --color-danger-text: #f87171;
  --color-success: #065f46;
  --color-success-text: #34d399;
  --color-warning-text: #fbbf24;
  --text-xs: 11px/16px;
  --text-sm: 12px/16px;
  --text-base: 13px/20px;
  --text-md: 14px/20px;
  --text-lg: 22px/28px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --space-0: 0px;
  --space-1: 2px;
  --space-2: 4px;
  --space-3: 8px;
  --space-4: 12px;
  --space-5: 16px;
  --space-6: 24px;
  --space-7: 32px;
  --font-sans: Segoe UI, Inter, system-ui, sans-serif;
  --font-mono: Consolas, ui-monospace, Menlo, monospace;
  --shadow-card: 0 1px 3px rgba(0,0,0,.4);
}

/* Uses the design tokens defined in tokens.css (served in the same stylesheet). */
* { box-sizing: border-box; }
html { color-scheme: dark; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font: 14px/20px var(--font-sans); }
a { color: var(--color-accent-text); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--color-accent-text); outline-offset: 2px; }
code { font-family: var(--font-mono); font-size: 13px; }

.bar { display: flex; align-items: center; gap: 24px; padding: 12px 24px; background: var(--color-surface-sunken); border-bottom: 1px solid var(--color-border); flex-wrap: wrap; }
.brand { font-size: 18px; font-weight: 700; color: var(--color-text); text-decoration: none; }
.bar nav { display: flex; gap: 16px; flex: 1; }
.bar nav a { text-decoration: none; }
.who { margin-right: 8px; }
main { max-width: 960px; margin: 0 auto; padding: 24px 16px 64px; }

h1 { font-size: 22px; line-height: 28px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 24px 0 8px; }
.muted { color: var(--color-text-muted); }
.small { font-size: 12px; }
.crumb { margin: 0 0 8px; color: var(--color-text-muted); }

.card { background: var(--color-surface); border-radius: var(--radius-md); padding: 20px; margin: 0 0 20px; box-shadow: var(--shadow-card); overflow-x: auto; }
.card.narrow { max-width: 420px; margin: 48px auto; }
.card.highlight { border: 1px solid var(--color-accent-text); }
.secret { display: block; padding: 12px; background: var(--color-surface-sunken); border-radius: var(--radius-sm); word-break: break-all; user-select: all; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
th { color: var(--color-text-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
td.num, th.num { text-align: right; }
.nowrap { white-space: nowrap; }

.badge { display: inline-block; padding: 2px 10px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; background: var(--color-surface-sunken); }
.badge.on { color: var(--color-success-text); }
.badge.off { color: var(--color-text-muted); }

label { display: block; margin: 0 0 4px; color: var(--color-text-muted); font-size: 12px; }
input, select { width: 100%; height: 36px; padding: 0 10px; border: 1px solid var(--color-border-input); border-radius: var(--radius-sm); background: var(--color-surface-sunken); color: var(--color-text); font: inherit; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; align-items: end; }
.actions { display: flex; }
form.inline { display: inline; }

.btn { height: 36px; padding: 0 16px; border: 0; border-radius: var(--radius-sm); font: inherit; font-weight: 700; cursor: pointer; color: var(--color-text); background: var(--color-border); }
.btn.sm { height: 28px; padding: 0 12px; font-size: 12px; }
.btn.primary { background: var(--color-accent); color: var(--color-on-accent); }
.btn.danger { background: var(--color-danger); color: var(--color-on-accent); }
.btn.ghost { background: transparent; border: 1px solid var(--color-border-input); }
.btn:hover { filter: brightness(1.15); }

.notice { padding: 10px 14px; border-radius: var(--radius-sm); margin: 0 0 16px; background: var(--color-surface); border-left: 4px solid var(--color-border-input); }
.notice.ok { border-left-color: var(--color-success-text); }
.notice.err { border-left-color: var(--color-danger-text); }

@media (max-width: 560px) {
  .bar { padding: 12px 16px; gap: 12px; }
  .card { padding: 16px; }
}