:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-2: #f1f3f9;
  --border: #e3e6ef;
  --text: #171a26;
  --muted: #646b80;
  --accent: #4f46e5;
  --accent-soft: #eceafd;
  --ok: #15803d;
  --ok-soft: #e6f6eb;
  --warn: #b45309;
  --warn-soft: #fdf1e2;
  --bad: #c0262d;
  --bad-soft: #fde8e8;
  --info: #2563eb;
  --info-soft: #e7effd;
  --shadow: 0 1px 2px rgba(16, 20, 40, .05), 0 4px 16px rgba(16, 20, 40, .04);
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1018;
    --panel: #161925;
    --panel-2: #1d2130;
    --border: #2a2f42;
    --text: #e8eaf2;
    --muted: #949bb2;
    --accent: #8b85ff;
    --accent-soft: #25234a;
    --ok: #4ade80; --ok-soft: #12301f;
    --warn: #fbbf24; --warn-soft: #3a2b0e;
    --bad: #f87171; --bad-soft: #3d1618;
    --info: #60a5fa; --info-soft: #142a4a;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
h1 { font-size: 22px; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0; }
code, pre { font-family: var(--mono); font-size: 12.5px; }
pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow: auto; white-space: pre-wrap; word-break: break-word; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: var(--mono); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }

/* layout */
.shell { display: grid; grid-template-columns: 232px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 18px 12px; position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 15px; padding: 4px 10px 18px; }
.logo { width: 28px; height: 28px; display: block; }
nav { display: flex; flex-direction: column; gap: 2px; }
nav a { color: var(--muted); padding: 8px 10px; border-radius: 8px; display: flex; gap: 10px; align-items: center; font-weight: 500; }
nav a:hover { background: var(--panel-2); color: var(--text); }
nav a.active { background: var(--accent-soft); color: var(--accent); }
.ico { width: 18px; text-align: center; }
.sidebar-foot { margin-top: auto; padding: 10px; }
main { padding: 28px 32px 60px; min-width: 0; max-width: 1400px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head p { margin: 4px 0 0; color: var(--muted); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.grid { display: grid; gap: 16px; }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; }
.stack { display: flex; flex-direction: column; gap: 16px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.card-head h2 { margin: 0; }

/* KPIs */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.kpi .label { color: var(--muted); font-size: 12px; font-weight: 500; }
.kpi .value { font-size: 24px; font-weight: 650; letter-spacing: -.02em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.kpi .sub { color: var(--muted); font-size: 12px; }

/* buttons & forms */
button, .btn { font: inherit; border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 7px 13px; border-radius: 8px; cursor: pointer; font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
button:hover, .btn:hover { background: var(--panel-2); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { filter: brightness(1.08); background: var(--accent); }
button.danger { color: var(--bad); }
button.sm { padding: 4px 9px; font-size: 12.5px; }
button.link { border: 0; background: none; color: var(--muted); padding: 0; }
button.link:hover { color: var(--text); background: none; }
button:disabled { opacity: .55; cursor: default; }
label { display: flex; flex-direction: column; gap: 5px; font-weight: 500; font-size: 13px; }
label .hint { font-weight: 400; color: var(--muted); font-size: 12px; }
input, select, textarea { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; width: 100%; min-width: 0; }
select, input:not([type="checkbox"]), .picker-trigger { height: 38px; }
textarea { resize: vertical; min-height: 80px; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
.form { display: grid; gap: 14px; }
.form .row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 500; }
.check input { width: auto; }
.field { display: flex; flex-direction: column; gap: 5px; font-weight: 500; font-size: 13px; min-width: 0; }
.hint.warn { color: var(--warn); }
.picker-trigger { width: 100%; padding: 8px 10px; font-weight: 400; justify-content: flex-start; gap: 8px; min-width: 0; }
.picker-trigger .mono { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picker-trigger .caret { margin-left: auto; color: var(--muted); }
.picker { border: 1px solid var(--border); border-radius: 10px; padding: 12px; display: grid; gap: 10px; background: var(--panel-2); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { border-radius: 999px; padding: 4px 12px; font-size: 12.5px; }
.chip.on { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.model-list { display: grid; gap: 6px; max-height: 380px; overflow-y: auto; }
.model-opt { display: grid; gap: 4px; width: 100%; text-align: left; padding: 10px 12px; font-weight: 400; justify-items: start; }
.model-opt.selected { border: 2px solid var(--accent); padding: 9px 11px; }
.model-opt.dim .mono { color: var(--muted); }
.model-top { display: flex; gap: 8px; align-items: center; justify-content: space-between; width: 100%; font-weight: 500; }
.model-purpose { color: var(--muted); font-size: 12.5px; }
.badges { display: flex; flex-wrap: wrap; gap: 5px; }
.picker-foot { display: flex; justify-content: space-between; gap: 8px; align-items: center; border-top: 1px solid var(--border); padding-top: 8px; }
fieldset { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px 14px; margin: 0; display: grid; gap: 12px; }
legend { padding: 0 6px; font-weight: 600; font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

/* tables */
.table-wrap { overflow-x: auto; margin: 0 -18px; padding: 0 18px; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th { text-align: left; font-size: 12px; font-weight: 600; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--panel-2); }
.empty { text-align: center; color: var(--muted); padding: 32px 10px; }

/* badges & bars */
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--panel-2); color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.error, .badge.critical { background: var(--bad-soft); color: var(--bad); }
.badge.blocked, .badge.warning { background: var(--warn-soft); color: var(--warn); }
.badge.info { background: var(--info-soft); color: var(--info); }
.badge.accent { background: var(--accent-soft); color: var(--accent); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; display: inline-block; }
.bar { height: 6px; border-radius: 999px; background: var(--panel-2); overflow: hidden; min-width: 80px; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: inherit; }
.bar.warn > span { background: var(--warn); }
.bar.bad > span { background: var(--bad); }
.meter-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 4px; gap: 8px; }

/* alerts */
.alerts { display: grid; gap: 8px; margin-bottom: 16px; }
.alert { display: flex; gap: 10px; align-items: center; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--panel); }
.alert.critical { background: var(--bad-soft); border-color: transparent; }
.alert.warning { background: var(--warn-soft); border-color: transparent; }
.alert.info { background: var(--info-soft); border-color: transparent; }
.alert a { margin-left: auto; white-space: nowrap; font-weight: 500; }

/* chart */
.chart { width: 100%; height: 220px; display: block; }
.chart .grid-line { stroke: var(--border); stroke-width: 1; }
.chart .axis { fill: var(--muted); font-size: 11px; }
.chart .b { fill: var(--accent); }
.chart .b.err { fill: var(--bad); }
.chart .b:hover { opacity: .8; }
.seg { display: inline-flex; flex-wrap: wrap; background: var(--panel-2); border-radius: 8px; padding: 2px; }
.seg button { border: 0; background: none; padding: 4px 10px; font-size: 12.5px; color: var(--muted); }
.seg button.on { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }

/* provider cards */
.prov-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.prov { display: flex; flex-direction: column; gap: 14px; }
.prov .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-row .v { font-weight: 650; font-size: 16px; font-variant-numeric: tabular-nums; }
.stat-row .l { color: var(--muted); font-size: 12px; }

/* playground */
.output { min-height: 120px; }
.meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: 12px; margin-top: 8px; }

/* modal & toast */
.backdrop { position: fixed; inset: 0; background: rgba(10, 12, 24, .45); display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal { background: var(--panel); border-radius: 14px; border: 1px solid var(--border); width: min(620px, 100%); max-height: 90vh; overflow: auto; padding: 22px; box-shadow: 0 20px 60px rgba(0, 0, 0, .25); }
.modal.wide { width: min(860px, 100%); }
.modal h2 { font-size: 17px; margin-bottom: 16px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
#toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 60; }
.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 10px; box-shadow: 0 8px 24px rgba(0, 0, 0, .2); max-width: 380px; }
.toast.error { background: var(--bad); color: #fff; }

.login { max-width: 360px; margin: 12vh auto; }
.login-logo { width: 44px; height: 44px; display: block; margin-bottom: 14px; }
.logo, .login-logo { border-radius: 22%; box-shadow: 0 0 0 1px rgba(255, 255, 255, .08); }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 6px 12px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.toggle { position: relative; width: 34px; height: 20px; flex: none; }
.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle span { position: absolute; inset: 0; background: var(--border); border-radius: 999px; transition: .15s; cursor: pointer; }
.toggle span::after { content: ""; position: absolute; width: 14px; height: 14px; left: 3px; top: 3px; border-radius: 50%; background: #fff; transition: .15s; }
.toggle input:checked + span { background: var(--ok); }
.toggle input:checked + span::after { transform: translateX(14px); }

@media (max-width: 1000px) {
  .split, .cols-2, .cols-3 { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; padding: 10px 16px; gap: 6px; }
  .brand { padding: 0 8px 0 0; }
  nav { flex-direction: row; overflow-x: auto; width: 100%; }
  nav a { white-space: nowrap; }
  .sidebar-foot { display: none; }
  main { padding: 20px 16px 48px; }
  .kv { grid-template-columns: 1fr; }
}