/* ---------------------------------------------------------------------------
   Design tokens. Everything below draws from these, so light and dark stay
   consistent and a rebrand is a one-block change.
--------------------------------------------------------------------------- */
:root {
  --bg: #eef1f6;
  --bg-accent: #e3e9f5;
  --card: #ffffff;
  --card-raised: #ffffff;
  --text: #171c26;
  --muted: #687186;
  --border: #e1e5ec;
  --border-strong: #cfd5e0;

  --primary: #4059e6;
  --primary-strong: #3448c4;
  --primary-soft: #eceffd;
  --primary-text: #ffffff;

  --success: #177245;
  --success-soft: #e0f3e8;
  --warning: #96570a;
  --warning-soft: #fdf0d9;
  --danger: #bc2330;
  --danger-soft: #fce9ea;
  --neutral-soft: #edeff3;

  --track: #e7eaf0;
  --ring: rgba(64, 89, 230, 0.35);
  --shadow-sm: 0 1px 2px rgba(23, 28, 38, 0.05);
  --shadow-md: 0 1px 2px rgba(23, 28, 38, 0.05), 0 6px 20px -8px rgba(23, 28, 38, 0.14);
  --shadow-lg: 0 24px 60px -24px rgba(23, 28, 38, 0.35);
  --radius: 12px;
  --radius-sm: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --bg-accent: #131a28;
    --card: #171b22;
    --card-raised: #1c212a;
    --text: #e7eaef;
    --muted: #96a0b0;
    --border: #272d38;
    --border-strong: #353d4b;

    --primary: #7288ff;
    --primary-strong: #8b9dff;
    --primary-soft: rgba(114, 136, 255, 0.14);
    --primary-text: #0e1116;

    --success: #5fd396;
    --success-soft: rgba(95, 211, 150, 0.14);
    --warning: #f3c35c;
    --warning-soft: rgba(243, 195, 92, 0.14);
    --danger: #ff7b85;
    --danger-soft: rgba(255, 123, 133, 0.13);
    --neutral-soft: rgba(150, 160, 176, 0.14);

    --track: #272d38;
    --ring: rgba(114, 136, 255, 0.4);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px -10px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 60px -24px rgba(0, 0, 0, 0.75);
  }
}

/* ---------------------------------------------------------------------------
   Base
--------------------------------------------------------------------------- */
* { box-sizing: border-box; }
html { height: 100%; }
body {
  margin: 0;
  min-height: 100%;
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1100px 420px at 85% -120px, var(--bg-accent), transparent 70%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }
/* Role-gated controls; the server enforces the same rules. */
body:not(.is-admin) .admin-only { display: none !important; }
body:not(.is-super) .super-only { display: none !important; }

.muted { color: var(--muted); }
.error { color: var(--danger); min-height: 1em; margin: 0; }
code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 0.92em;
  background: var(--neutral-soft);
  padding: 1px 5px;
  border-radius: 5px;
}
small { font-size: 12px; }

::selection { background: var(--primary-soft); }
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }

/* ---------------------------------------------------------------------------
   Controls
--------------------------------------------------------------------------- */
button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 11px;
  transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
input:hover, select:hover, textarea:hover { border-color: var(--border-strong); }
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--ring);
}
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 0.75; }
textarea { width: 100%; resize: vertical; font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
label { display: grid; gap: 5px; font-weight: 500; }
label > small, label .muted { font-weight: 400; }

button { cursor: pointer; font-weight: 500; box-shadow: var(--shadow-sm); }
button:hover { border-color: var(--border-strong); background: var(--card-raised); }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
button:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--ring); }
button.primary {
  background: linear-gradient(180deg, var(--primary), var(--primary-strong));
  color: var(--primary-text);
  border-color: transparent;
}
button.primary:hover { filter: brightness(1.06); }
button.ghost { background: transparent; border-color: transparent; box-shadow: none; color: var(--muted); }
button.ghost:hover { color: var(--text); background: var(--neutral-soft); }
button.danger { color: var(--danger); }
button.danger:hover { background: var(--danger-soft); border-color: var(--danger); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }

/* ---------------------------------------------------------------------------
   Cards and layout
--------------------------------------------------------------------------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-md);
}

main { padding: 0 24px 32px; max-width: 1480px; margin: 0 auto; }
.tab-panel { display: grid; gap: 14px; padding-top: 16px; }

/* ---------------------------------------------------------------------------
   Login
--------------------------------------------------------------------------- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(380px, 100%); display: grid; gap: 14px; padding: 28px; }
.login-card h1 { font-size: 20px; margin: 0 0 4px; letter-spacing: 0.2px; }
.login-card h1::before {
  content: "";
  display: block;
  width: 40px; height: 40px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: var(--shadow-md);
}

/* ---------------------------------------------------------------------------
   Top bar
--------------------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--card) 85%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 650; letter-spacing: 0.2px; display: flex; align-items: center; gap: 10px; }
.brand::before {
  content: "";
  width: 22px; height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: var(--shadow-sm);
}
.sync-info { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sync-info > span.muted { font-size: 13px; }
.user-chip {
  padding: 3px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  background: var(--neutral-soft);
}

/* ---------------------------------------------------------------------------
   Tabs: a segmented control
--------------------------------------------------------------------------- */
.tabs {
  display: inline-flex; gap: 2px;
  margin: 16px 24px 0;
  padding: 4px;
  background: var(--neutral-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: fit-content;
}
.tabs button {
  border: none;
  background: transparent;
  box-shadow: none;
  border-radius: 999px;
  padding: 6px 16px;
  color: var(--muted);
}
.tabs button:hover { color: var(--text); background: color-mix(in srgb, var(--card) 60%, transparent); }
.tabs button.active {
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.tabs button:active { transform: none; }

/* Center the shell on very wide screens, matching main. */
@media (min-width: 1529px) {
  .tabs { margin-left: calc((100vw - 1480px) / 2); }
}

/* ---------------------------------------------------------------------------
   Toolbar, alert
--------------------------------------------------------------------------- */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar input[type="search"] { flex: 1 1 280px; }
.toolbar .muted { font-size: 13px; }

.alert {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
  border-left: 4px solid var(--danger);
  color: var(--danger);
  background: var(--danger-soft);
  box-shadow: var(--shadow-sm);
}
.alert button { background: var(--card); }

/* ---------------------------------------------------------------------------
   Tables
--------------------------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; vertical-align: middle; }
thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--card);
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
tbody tr { transition: background 100ms ease; }
tbody tr:hover { background: color-mix(in srgb, var(--neutral-soft) 55%, transparent); }
tbody tr:last-child td { border-bottom: none; }
td:first-child { font-weight: 550; }
.row-actions { display: flex; gap: 4px; }
.row-actions button { padding: 3px 9px; font-size: 13px; white-space: nowrap; box-shadow: none; }
.empty { text-align: center; color: var(--muted); padding: 36px 24px; margin: 0; }

/* ---------------------------------------------------------------------------
   Badges and usage bars
--------------------------------------------------------------------------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 550;
  border: 1px solid transparent;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.ok   { color: var(--success); background: var(--success-soft); }
.badge.warn { color: var(--warning); background: var(--warning-soft); }
.badge.bad  { color: var(--danger);  background: var(--danger-soft); }
.badge.off  { color: var(--muted);   background: var(--neutral-soft); }

.status-cell { display: grid; gap: 3px; min-width: 200px; max-width: 280px; justify-items: start; }
.status-reason { font-size: 12px; color: var(--muted); white-space: normal; word-break: break-word; }
.override { font-size: 12px; color: var(--warning); }

.limit { display: grid; gap: 4px; min-width: 150px; }
.bar { height: 6px; border-radius: 999px; background: var(--track); overflow: hidden; }
.bar > span {
  display: block; height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--success) 80%, var(--card)), var(--success));
  transition: width 200ms ease;
}
.bar.warn > span { background: linear-gradient(90deg, color-mix(in srgb, var(--warning) 80%, var(--card)), var(--warning)); }
.bar.bad > span { background: linear-gradient(90deg, color-mix(in srgb, var(--danger) 80%, var(--card)), var(--danger)); }

/* ---------------------------------------------------------------------------
   Forms
--------------------------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
.span-2 { grid-column: span 2; }
.row { display: flex; gap: 8px; }
.row input { flex: 1; }
.inline { display: flex; align-items: center; gap: 7px; font-weight: 400; }
.inline input[type="checkbox"] { accent-color: var(--primary); width: 15px; height: 15px; }
input[type="checkbox"] { accent-color: var(--primary); }
.actions { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.action-row { display: flex; gap: 8px; align-items: center; }

details {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  background: color-mix(in srgb, var(--neutral-soft) 40%, transparent);
}
details summary { cursor: pointer; color: var(--muted); font-weight: 500; }
details summary:hover { color: var(--text); }
details[open] summary { margin-bottom: 4px; }
details .form-grid { margin-top: 12px; }

.user-form { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)) auto; gap: 14px 16px; align-items: end; }
.user-form .error { grid-column: 1 / -1; }
.note-form { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto; gap: 14px 16px; align-items: end; }
.note-form .error { grid-column: 1 / -1; }

/* ---------------------------------------------------------------------------
   Events
--------------------------------------------------------------------------- */
.events { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.events li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: grid; gap: 3px;
  box-shadow: var(--shadow-sm);
}
.events .meta { display: flex; gap: 8px; color: var(--muted); font-size: 12px; flex-wrap: wrap; }
.compact { list-style: none; padding: 0; margin: 0; max-height: 220px; overflow: auto; display: grid; gap: 4px; }
.compact li { font-size: 13px; }

/* ---------------------------------------------------------------------------
   Dialogs
--------------------------------------------------------------------------- */
dialog {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  color: var(--text);
  width: min(640px, calc(100vw - 32px));
  padding: 0;
  box-shadow: var(--shadow-lg);
}
dialog::backdrop { background: rgba(10, 14, 22, 0.45); backdrop-filter: blur(3px); }
dialog[open] { animation: dialog-in 140ms ease-out; }
@keyframes dialog-in {
  from { opacity: 0; transform: translateY(8px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.dialog-body { padding: 20px; display: grid; gap: 12px; }
.dialog-body h2 { margin: 0; font-size: 17px; }
.dialog-body h3 { margin: 8px 0 0; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.4px; }
.fields { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.fields dt { color: var(--muted); }
.fields dd { margin: 0; word-break: break-all; }

/* ---------------------------------------------------------------------------
   Toast
--------------------------------------------------------------------------- */
.toast {
  position: fixed; right: 16px; bottom: 16px; z-index: 50;
  background: var(--card-raised);
  color: var(--text);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  padding: 10px 16px;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  max-width: min(420px, calc(100vw - 32px));
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}
.toast.show { opacity: 1; transform: none; }

/* ---------------------------------------------------------------------------
   Motion and small screens
--------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}
@media (max-width: 720px) {
  .form-grid, .note-form, .user-form { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  main, .topbar { padding-left: 16px; padding-right: 16px; }
  .tabs { margin-left: 16px; margin-right: 16px; }
  .card { padding: 16px; }
}