:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --surface-2: #f8f9fb;
  --border: #e2e6ec;
  --text: #1b2430;
  --muted: #5f6b7a;
  --accent: #0b6bcb;
  --accent-ink: #ffffff;
  --accent-soft: #e6f0fb;
  --ok: #1a7f4b;
  --ok-soft: #e3f4ea;
  --warn: #9a6400;
  --warn-soft: #fdf1dc;
  --bad: #c0392b;
  --bad-soft: #fbe7e5;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141a;
    --surface: #171d25;
    --surface-2: #1d2530;
    --border: #2a3441;
    --text: #e6ebf1;
    --muted: #93a0b0;
    --accent: #4c9ef0;
    --accent-ink: #08121d;
    --accent-soft: #15283d;
    --ok: #4cc488;
    --ok-soft: #12291d;
    --warn: #e5b04a;
    --warn-soft: #2d2412;
    --bad: #f07167;
    --bad-soft: #321816;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: "Cascadia Mono", Consolas, ui-monospace, monospace; font-size: 13px; }
h1 { font-size: 20px; margin: 0; font-weight: 600; }
h2 { font-size: 16px; margin: 0 0 12px; font-weight: 600; }
h3 { font-size: 14px; margin: 0 0 8px; font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.hidden { display: none !important; }

/* layout */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 16px; font-weight: 600; font-size: 15px; }
.brand img { width: 26px; height: 26px; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 8px; color: var(--text);
}
.nav a:hover { background: var(--surface-2); text-decoration: none; }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav .section { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; padding: 14px 10px 4px; }
.sidebar .me { margin-top: auto; padding: 10px; border-top: 1px solid var(--border); font-size: 13px; }
.sidebar .me button { margin-top: 8px; width: 100%; }
.main { padding: 24px 28px 48px; min-width: 0; }
.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head .spacer { flex: 1; }
.menu-toggle { display: none; }

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 30; left: 0; width: 240px; transform: translateX(-100%); transition: transform .2s; box-shadow: var(--shadow); }
  .sidebar.open { transform: none; }
  .main { padding: 16px; }
  .menu-toggle { display: inline-flex; }
}

/* surfaces */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.card + .card { margin-top: 16px; }
.grid > .card, .ab-cards > .card { margin-top: 0; }
.grid { display: grid; gap: 16px; }
.grid.stats { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); margin-bottom: 16px; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { font-size: 28px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat .value.ok { color: var(--ok); }
.stat .value.bad { color: var(--bad); }

/* controls */
button, .btn {
  font: inherit; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  padding: 6px 12px; border-radius: 8px; display: inline-flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
button:hover, .btn:hover { background: var(--surface-2); text-decoration: none; }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.primary:hover { filter: brightness(1.08); }
button.danger { color: var(--bad); }
button.danger.solid { background: var(--bad); border-color: var(--bad); color: #fff; }
button.small, .btn.small { padding: 3px 8px; font-size: 12px; }
button:disabled { opacity: .55; cursor: default; }
input, select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; width: 100%;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
input[type=checkbox] { width: auto; }
input[type=color] { padding: 2px; height: 34px; width: 56px; }
textarea { min-height: 70px; resize: vertical; }
.search { max-width: 280px; }
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.toolbar .spacer { flex: 1; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field label { font-size: 12px; color: var(--muted); font-weight: 600; }
.field .hint { font-size: 12px; color: var(--muted); }
.check { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; background: none; padding: 8px 12px; color: var(--muted); }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* tables */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--surface-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td .actions { display: flex; gap: 4px; justify-content: flex-end; flex-wrap: wrap; }
.empty { padding: 28px; text-align: center; color: var(--muted); }
.pager { display: flex; align-items: center; gap: 8px; justify-content: flex-end; margin-top: 10px; }

/* badges */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--surface-2); border: 1px solid var(--border); white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.badge.warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.bad { background: var(--bad-soft); color: var(--bad); border-color: transparent; }
.badge.accent { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-soft); }
.tag { display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); margin: 1px 2px; }
.tag .swatch { width: 8px; height: 8px; border-radius: 50%; }
.taglist { display: flex; flex-wrap: wrap; gap: 4px; }

/* lists */
.list { display: flex; flex-direction: column; }
.list .item { display: flex; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); }
.list .item:last-child { border-bottom: 0; }
.list .item .grow { flex: 1; min-width: 0; }
.list .item > select { width: auto; flex: none; }
.kv { display: grid; grid-template-columns: 170px 1fr; gap: 6px 16px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
.copybox { display: flex; gap: 8px; align-items: stretch; }
.copybox code { flex: 1; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px; word-break: break-all; }
.ab-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin-bottom: 20px; }
.ab-card { cursor: pointer; }
.ab-card.active { outline: 2px solid var(--accent); }
.ab-card .title { font-weight: 600; display: flex; gap: 6px; align-items: center; }

/* chart */
.bars { display: flex; align-items: flex-end; gap: 4px; height: 120px; padding-top: 8px; }
.bars .bar { flex: 1; background: var(--accent); border-radius: 4px 4px 0 0; min-height: 2px; opacity: .85; position: relative; }
.bars .bar:hover { opacity: 1; }
.bar-labels { display: flex; gap: 4px; font-size: 11px; color: var(--muted); }
.bar-labels span { flex: 1; text-align: center; overflow: hidden; white-space: nowrap; }

/* modal */
.backdrop { position: fixed; inset: 0; background: rgba(10, 15, 22, .5); display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; z-index: 50; overflow-y: auto; }
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; width: 100%; max-width: 560px; box-shadow: 0 20px 50px rgba(0, 0, 0, .25); }
.modal.wide { max-width: 860px; }
.modal header { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; }
.modal header h2 { margin: 0; flex: 1; }
.modal .body { padding: 18px; }
.modal footer { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.form-error { color: var(--bad); background: var(--bad-soft); border-radius: 8px; padding: 8px 10px; margin-bottom: 12px; }

/* login */
.login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login .card { width: 100%; max-width: 380px; padding: 28px; }
.login .brand { justify-content: center; padding-bottom: 20px; font-size: 18px; }
.login .sso { width: 100%; justify-content: center; padding: 10px 12px; font-weight: 600; }
.login .sso svg { background: #fff; border-radius: 2px; padding: 1px; }
.local-login { margin-top: 18px; }
.local-login summary { cursor: pointer; color: var(--muted); font-size: 13px; margin-bottom: 12px; }

/* toasts */
#toasts { position: fixed; bottom: 16px; right: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 8px; box-shadow: var(--shadow); max-width: 360px; }
.toast.error { background: var(--bad); color: #fff; }
pre.json { background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px; overflow: auto; max-height: 300px; font-size: 12px; }
ol.steps li { margin-bottom: 6px; }