:root {
  --brand: #2f6bff;
  --brand-soft: #e8efff;
  --bg: #f4f6fa;
  --card: #ffffff;
  --ink: #1a1d26;
  --sub: #6b7280;
  --line: #e6e9f0;
  --hover: #f5f7fb;
  --ok: #12b76a;
  --ok-soft: #e7f8f0;
  --warn: #f79009;
  --warn-soft: #fef4e6;
  --danger: #f04438;
  --danger-soft: #feeceb;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand: #5b8cff;
    --brand-soft: #1f2a44;
    --bg: #0f1115;
    --card: #181b22;
    --ink: #e7e9ee;
    --sub: #9aa1ad;
    --line: #2a2f39;
    --hover: #20242c;
    --ok-soft: #12321f;
    --warn-soft: #3a2a10;
    --danger-soft: #3a1714;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; }
.boot { padding: 80px 16px; text-align: center; color: var(--sub); }
.muted { color: var(--sub); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.hidden { display: none !important; }

/* ---------- buttons & inputs ---------- */
button, .btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 8px;
  padding: 6px 12px;
  line-height: 20px;
  white-space: nowrap;
}
button:hover { background: var(--hover); }
button:disabled { opacity: .55; cursor: default; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand); filter: brightness(1.06); }
.btn-danger { color: var(--danger); }
.btn-danger-solid { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger-solid:hover { background: var(--danger); filter: brightness(1.06); }
.btn-link { border: 0; background: none; color: var(--brand); padding: 2px 4px; }
.btn-link:hover { background: none; text-decoration: underline; }
.btn-link.danger { color: var(--danger); }
.btn-block { width: 100%; padding: 10px; }
.icon-btn { border: 0; background: none; font-size: 22px; line-height: 1; padding: 2px 8px; color: var(--sub); }

input, select, textarea {
  font: inherit;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 10px;
  width: 100%;
  min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
input[type=checkbox] { width: auto; accent-color: var(--brand); }
textarea { resize: vertical; min-height: 80px; line-height: 1.6; }
textarea.tall { min-height: 360px; }
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 13px; color: var(--sub); margin-bottom: 4px; }
label.field > small { display: block; color: var(--sub); font-size: 12px; margin-top: 4px; }
.row { display: flex; gap: 8px; align-items: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.check { display: inline-flex; align-items: center; gap: 6px; margin: 0 14px 8px 0; cursor: pointer; }
.switch { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; cursor: pointer; }

/* ---------- login ---------- */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; background: var(--card); border-radius: 16px; padding: 28px; box-shadow: var(--shadow); }
.login-card .brand { margin-bottom: 24px; }
.login-card .hint { color: var(--sub); font-size: 12px; margin: 16px 0 0; }
.error-text { color: var(--danger); font-size: 13px; min-height: 20px; margin: -4px 0 8px; }

.brand { display: flex; align-items: center; gap: 10px; }
.logo { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, #4c8dff, #1e4fe0); color: #fff; display: grid; place-items: center; font-weight: 700; }
.brand b { display: block; font-size: 15px; }
.brand small { display: block; color: var(--sub); font-size: 12px; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: 216px minmax(0, 1fr); min-height: 100vh; }
.side { background: var(--card); border-right: 1px solid var(--line); padding: 18px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.side .brand { padding: 0 8px 18px; }
.nav a { display: flex; align-items: center; justify-content: space-between; padding: 9px 12px; border-radius: 8px; color: var(--ink); margin-bottom: 2px; }
.nav a:hover { background: var(--hover); text-decoration: none; }
.nav a.active { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.nav .count { background: var(--danger); color: #fff; font-size: 11px; border-radius: 9px; padding: 0 6px; line-height: 18px; }
.main { min-width: 0; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 24px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 5; }
.top h1 { font-size: 18px; }
.top .who { color: var(--sub); font-size: 13px; }
.content { padding: 20px 24px 48px; max-width: 1360px; }

/* ---------- cards ---------- */
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; margin-bottom: 16px; border: 1px solid var(--line); }
.card h3 { font-size: 15px; margin-bottom: 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card-foot { display: flex; gap: 8px; justify-content: flex-end; border-top: 1px solid var(--line); margin: 6px -18px -18px; padding: 12px 18px; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat .label { color: var(--sub); font-size: 13px; }
.stat .value { font-size: 24px; font-weight: 650; margin-top: 2px; font-variant-numeric: tabular-nums; }
.stat .sub { color: var(--sub); font-size: 12px; }
.two-col { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 16px; }

.alert { border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; font-size: 13px; }
.alert.warn { background: var(--warn-soft); color: #9a5b00; }
.alert.info { background: var(--brand-soft); color: var(--brand); }
@media (prefers-color-scheme: dark) { .alert.warn { color: #f5b860; } }

/* ---------- chart ---------- */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 160px; padding-top: 18px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; min-width: 0; }
.bar { width: 100%; max-width: 28px; background: var(--brand); border-radius: 4px 4px 0 0; min-height: 2px; position: relative; }
.bar.alt { background: var(--ok); }
.bar-val { font-size: 11px; color: var(--sub); margin-bottom: 2px; font-variant-numeric: tabular-nums; }
.bar-label { font-size: 11px; color: var(--sub); margin-top: 4px; white-space: nowrap; }
.dist-row { display: grid; grid-template-columns: 96px 1fr 48px; gap: 10px; align-items: center; margin-bottom: 10px; }
.track { height: 8px; background: var(--hover); border-radius: 4px; overflow: hidden; }
.track > div { height: 100%; background: var(--brand); border-radius: 4px; }
.track.ok > div { background: var(--ok); }
.track.warn > div { background: var(--warn); }
.track.danger > div { background: var(--danger); }

/* ---------- tables ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 12px; }
.toolbar input[type=search] { width: 240px; }
.toolbar select { width: auto; }
.table-wrap { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow-x: auto; box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-weight: 500; color: var(--sub); font-size: 13px; background: var(--hover); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--hover); }
td .primary { font-weight: 500; }
td .secondary { color: var(--sub); font-size: 12px; }
.empty { text-align: center; color: var(--sub); padding: 36px 12px; }
.pager { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; color: var(--sub); font-size: 13px; flex-wrap: wrap; }
.pager .row button { padding: 4px 10px; }
.batchbar { display: flex; align-items: center; gap: 8px; background: var(--brand-soft); color: var(--brand); padding: 8px 12px; border-radius: 10px; margin-bottom: 12px; flex-wrap: wrap; }

.badge { display: inline-block; font-size: 12px; line-height: 20px; padding: 0 8px; border-radius: 10px; background: var(--hover); color: var(--sub); white-space: nowrap; }
.badge.blue { background: var(--brand-soft); color: var(--brand); }
.badge.green { background: var(--ok-soft); color: var(--ok); }
.badge.orange { background: var(--warn-soft); color: var(--warn); }
.badge.red { background: var(--danger-soft); color: var(--danger); }
.tags { display: flex; flex-wrap: wrap; gap: 4px; }

/* ---------- modal ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 17, 21, .45); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px 16px; z-index: 50; overflow-y: auto; }
.modal { background: var(--card); border-radius: 14px; width: 100%; max-width: 520px; box-shadow: 0 20px 50px rgba(0, 0, 0, .25); }
.modal.wide { max-width: 920px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.modal-head h3 { font-size: 16px; }
.modal-body { padding: 18px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--line); }
.modal-body h4 { font-size: 14px; margin: 18px 0 8px; }
.modal-body h4:first-child { margin-top: 0; }
dl.kv { display: grid; grid-template-columns: 96px 1fr; gap: 6px 12px; margin: 0; }
dl.kv dt { color: var(--sub); }
dl.kv dd { margin: 0; word-break: break-all; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.quota-item { margin-bottom: 12px; }
.quota-item .row { justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
.action-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.secret { background: var(--hover); border-radius: 8px; padding: 10px 12px; font-size: 18px; letter-spacing: 1px; text-align: center; user-select: all; }

.fb-item { border-bottom: 1px solid var(--line); padding: 14px 16px; }
.fb-item:last-child { border-bottom: 0; }
.fb-item .content { white-space: pre-wrap; margin: 6px 0; word-break: break-word; }
.fb-item .meta { color: var(--sub); font-size: 12px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.fb-item .note { background: var(--hover); padding: 6px 10px; border-radius: 8px; font-size: 13px; margin-top: 6px; }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; top: 20px; transform: translateX(-50%); background: #1f2329; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 14px; z-index: 100; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: calc(100vw - 32px); }
.toast.show { opacity: 1; }
.toast.err { background: var(--danger); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .two-col, .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; align-content: start; }
  .side { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 10px 12px; }
  .side .brand { padding: 0 4px 8px; }
  .nav { display: flex; overflow-x: auto; gap: 4px; }
  .nav a { white-space: nowrap; margin: 0; }
  .top { position: static; padding: 12px 16px; flex-wrap: wrap; }
  .content { padding: 16px 16px 40px; }
  .toolbar input[type=search] { width: 100%; }
  .grid-2 { grid-template-columns: 1fr; }
  .modal-backdrop { padding-top: 16px; }
}
.spacer { flex: 1; }
.name-col { min-width: 150px; }