/* Tokens: DESIGN.md §3. Components use var(--token) only. */
:root {
  --bg:#F6F7F9; --surface:#FFFFFF; --surface-2:#EEF0F3; --border:#D9DDE3; --border-strong:#858C99;
  --text:#14171C; --text-2:#525866; --text-3:#646B78;
  --brand:#1F4FD1; --brand-hover:#1A43B3; --brand-soft:#E8EEFC; --on-brand:#FFFFFF;
  --success:#15803D; --success-soft:#F0F8F3;
  --warning:#B45309; --warning-soft:#FDF1E3;
  --danger:#B91C1C;  --danger-soft:#FBEAEA;
  --neutral:#5F6672; --neutral-soft:#ECEEF1;
  --focus:#1F4FD1;
  --shadow-float: 0 4px 16px rgba(0,0,0,.12);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#0F1115; --surface:#171A20; --surface-2:#1F232B; --border:#2C313A; --border-strong:#646B7A;
    --text:#E6E8EC; --text-2:#A7ADB8; --text-3:#7E8592;
    --brand:#6E95FF; --brand-hover:#8AA9FF; --brand-soft:#1B2747; --on-brand:#0F1115;
    --success:#4ADE80; --success-soft:#12291B;
    --warning:#FBBF24; --warning-soft:#2E2410;
    --danger:#F87171;  --danger-soft:#331616;
    --neutral:#9AA1AD; --neutral-soft:#22262E;
    --focus:#8AA9FF;
    --shadow-float: 0 4px 16px rgba(0,0,0,.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg:#0F1115; --surface:#171A20; --surface-2:#1F232B; --border:#2C313A; --border-strong:#646B7A;
  --text:#E6E8EC; --text-2:#A7ADB8; --text-3:#7E8592;
  --brand:#6E95FF; --brand-hover:#8AA9FF; --brand-soft:#1B2747; --on-brand:#0F1115;
  --success:#4ADE80; --success-soft:#12291B;
  --warning:#FBBF24; --warning-soft:#2E2410;
  --danger:#F87171;  --danger-soft:#331616;
  --neutral:#9AA1AD; --neutral-soft:#22262E;
  --focus:#8AA9FF;
  --shadow-float: 0 4px 16px rgba(0,0,0,.5);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2, h3 { line-height: 1.25; font-weight: 600; margin: 0; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 16px; }
p { margin: 0 0 12px; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 12px; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--text-2); }
.hint { color: var(--text-3); font-size: 12px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* Layout */
.app { display: grid; grid-template-columns: 216px 1fr; min-height: 100vh; }
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 16px 12px; }
.brand { font-weight: 600; font-size: 16px; padding: 4px 8px 16px; color: var(--text); }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav a { color: var(--text-2); padding: 8px; border-radius: 6px; font-weight: 500; }
.nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand); }
.sidebar-foot { margin-top: 24px; padding: 12px 8px 0; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-2); }
.sidebar-foot form { margin-top: 8px; }
.main { padding: 24px 32px 48px; max-width: 1200px; width: 100%; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; }
.stack { display: flex; flex-direction: column; gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* Panels */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.panel-body { padding: 16px; }
.panel > .table-wrap { border-radius: 0 0 8px 8px; }

/* Definition list */
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 24px; margin: 0; }
.facts dt { color: var(--text-2); }
.facts dd { margin: 0; overflow-wrap: anywhere; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--surface-2); color: var(--text-2); font-weight: 500; font-size: 12px; white-space: nowrap; position: sticky; top: 0; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }
.empty { padding: 24px 16px; color: var(--text-2); }

/* Badges (DESIGN.md §4) */
.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.badge--success { color: var(--success); background: var(--success-soft); }
.badge--brand   { color: var(--brand);   background: var(--brand-soft); }
.badge--warning { color: var(--warning); background: var(--warning-soft); }
.badge--danger  { color: var(--danger);  background: var(--danger-soft); }
.badge--neutral { color: var(--neutral); background: var(--neutral-soft); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 6px; border: 1px solid transparent;
  font: inherit; font-weight: 500; cursor: pointer; white-space: nowrap;
  transition: background-color 120ms, border-color 120ms, color 120ms;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--brand); color: var(--on-brand); }
.btn--primary:hover { background: var(--brand-hover); }
.btn--secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn--secondary:hover { background: var(--surface-2); }
.btn--danger { background: var(--danger); color: var(--on-brand); }
.btn--text { background: none; color: var(--brand); padding: 0 4px; height: auto; }
.btn--sm { height: 32px; padding: 0 12px; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field label { font-weight: 500; font-size: 12px; color: var(--text-2); }
input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="datetime-local"], select {
  height: 40px; padding: 0 12px; border: 1px solid var(--border-strong); border-radius: 6px;
  background: var(--surface); color: var(--text); font: inherit; min-width: 0; width: 100%;
}
input[type="number"] { font-variant-numeric: tabular-nums; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; align-items: end; }
.actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.action { border: 1px solid var(--border); border-radius: 8px; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.action h3 { font-size: 14px; }
.action p { margin: 0; color: var(--text-2); font-size: 12px; }
.inline-form { display: inline; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 24px; border: 1px solid transparent; }
.alert--success { background: var(--success-soft); color: var(--success); }
.alert--danger { background: var(--danger-soft); color: var(--danger); }
.alert--info { background: var(--brand-soft); color: var(--text); border-color: var(--border); }
.alert code { color: var(--text); }
.secret { display: block; margin-top: 8px; padding: 8px 12px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: 6px; font-size: 14px; user-select: all; overflow-wrap: anywhere; }

/* Log */
details summary { cursor: pointer; color: var(--brand); }
pre.raw { margin: 8px 0 0; white-space: pre-wrap; word-break: break-all; background: var(--surface-2); padding: 8px; border-radius: 4px; max-width: 640px; }

/* Login */
.auth { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth .panel { width: 100%; max-width: 360px; }
.auth form { display: flex; flex-direction: column; gap: 16px; }

.pager { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .main { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

.narrow { max-width: 560px; }
.stack--16 { gap: 16px; }
.row select, .row input[type="text"] { width: auto; }