:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #637083;
  --border: #e1e5eb;
  --primary: #2459d6;
  --primary-text: #ffffff;
  --danger: #c0352b;
  --warn-bg: #fff6e0;
  --warn-text: #7a5300;
  --error-bg: #fdecea;
  --error-text: #9b2a22;
  --info-bg: #eef3fd;
  --info-text: #2a447d;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --surface: #1b2129;
    --text: #e6eaf0;
    --muted: #97a2b2;
    --border: #2c3440;
    --primary: #5b8cff;
    --primary-text: #0b1220;
    --danger: #ff7b70;
    --warn-bg: #3a2f12;
    --warn-text: #f3d48a;
    --error-bg: #3b1a17;
    --error-text: #ffb4ab;
    --info-bg: #1b2a45;
    --info-text: #b9cdf7;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

[hidden] { display: none !important; }

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { font-weight: 600; font-size: 16px; }

nav { display: flex; gap: 4px; }

.tab {
  padding: 6px 12px;
  border: 0;
  border-radius: 6px;
  background: none;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}

.tab.active { background: var(--info-bg); color: var(--info-text); }

.user { margin-left: auto; display: flex; gap: 12px; color: var(--muted); }

.link { color: var(--primary); }

main { max-width: 1200px; margin: 0 auto; padding: 16px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
}

.login { max-width: 420px; margin: 64px auto; text-align: center; }

h1, h2 { margin: 0 0 8px; }
h2 { font-size: 16px; }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; word-break: break-all; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

.notice {
  padding: 10px 12px;
  margin-bottom: 16px;
  border-radius: 8px;
  background: var(--info-bg);
  color: var(--info-text);
}

.notice-warn { background: var(--warn-bg); color: var(--warn-text); }
.notice-error { background: var(--error-bg); color: var(--error-text); }

.toolbar { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }

.field { display: flex; flex-direction: column; gap: 4px; min-width: 200px; }
.field span { color: var(--muted); font-size: 12px; }
.grow { flex: 1; }
.narrow { min-width: 100px; }
.pager { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.pager .button + .button { margin-left: 0; }
.pager span { margin-right: auto; }

input, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.button {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

.button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.button.danger { color: var(--danger); }
.button.small { padding: 4px 10px; font-size: 13px; }
.button:disabled { opacity: 0.5; cursor: default; }
.button + .button { margin-left: 6px; }

.table-wrap { padding: 0; overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
tbody tr:last-child td { border-bottom: 0; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; align-items: end; }
.form-grid h2, .form-grid .actions { grid-column: 1 / -1; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }

.inline-form { display: flex; gap: 8px; margin: 12px 0; }

.inline-form input, .inline-form select { width: auto; flex: 1; min-width: 180px; }
.inline-form { flex-wrap: wrap; align-items: center; }

.check { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.check input { width: auto; }

.ns-picker select { min-width: 220px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}