:root {
  --bg: #15171c;
  --panel: #1d2027;
  --panel-2: #232830;
  --text: #e8eaed;
  --text-dim: #9aa0a6;
  --accent: #4dabff;
  --ok: #4caf50;
  --warn: #ff9800;
  --err: #ef5350;
  --border: #2a2f38;
  --oai: #4caf50;
  --ant: #ff9800;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft Yahei", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 15px; line-height: 1.5;
  padding: 24px max(16px, env(safe-area-inset-left)) 48px;
  max-width: 1080px; margin: 0 auto;
}

header { margin-bottom: 24px; }
header h1 { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
header .sub { color: var(--text-dim); font-size: 13px; }
.prov-oai { color: var(--oai); font-weight: 600; }
.prov-ant { color: var(--ant); font-weight: 600; }

section { margin-bottom: 20px; }

.auth {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  background: var(--panel); padding: 14px 16px; border-radius: 10px; border: 1px solid var(--border);
}
.auth label { display: flex; align-items: center; gap: 10px; flex: 1 1 280px; }
.auth label span { color: var(--text-dim); font-size: 13px; white-space: nowrap; }
.auth input {
  flex: 1; min-width: 180px;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 10px; font: inherit; font-family: ui-monospace, monospace;
}
.hint { font-size: 12px; color: var(--text-dim); }

button {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 14px; cursor: pointer; font: inherit;
  transition: background 0.12s, border-color 0.12s;
}
button:hover:not(:disabled) { background: #2c323b; border-color: #3a4150; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.ghost { background: transparent; }
button.ghost.active { background: var(--accent); color: #fff; border-color: var(--accent); }
button.primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
  font-weight: 600; padding: 12px 24px; font-size: 16px;
}
button.primary:hover:not(:disabled) { background: #5fb7ff; }

.run { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.status { color: var(--text-dim); font-size: 13px; min-height: 1.4em; }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.cards .shared {
  grid-column: 1 / -1;
}
.card {
  background: var(--panel); border: 1px solid var(--border);
  padding: 16px 18px; border-radius: 10px;
}
.card .label {
  color: var(--text-dim); font-size: 13px; margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.card .label .pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.3px;
}
.pill.prov-oai { background: rgba(76, 175, 80, 0.15); color: var(--oai); border: 1px solid rgba(76, 175, 80, 0.4); }
.pill.prov-ant { background: rgba(255, 152, 0, 0.15); color: var(--ant); border: 1px solid rgba(255, 152, 0, 0.4); }
.card .label .model {
  color: var(--text-dim); font-size: 11px; font-family: ui-monospace, monospace;
}
.warn-tag {
  background: rgba(255, 152, 0, 0.18); color: var(--warn);
  border: 1px solid rgba(255, 152, 0, 0.4);
  padding: 2px 8px; border-radius: 4px; font-size: 11px;
}
.card.disabled { opacity: 0.6; }

.shared .value { font-size: 36px; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.shared .value .unit { font-size: 14px; color: var(--text-dim); margin-left: 6px; font-weight: 400; }
.shared .meta { color: var(--text-dim); font-size: 11px; margin-top: 6px; font-family: ui-monospace, monospace; }

.provider-openai { border-top: 2px solid var(--oai); }
.provider-claude { border-top: 2px solid var(--ant); }

.metric-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
.metric { padding: 6px 0; }
.metric.highlight { padding: 6px 12px; background: rgba(255,255,255,0.025); border-radius: 6px; }
.sublabel { color: var(--text-dim); font-size: 11px; margin-bottom: 4px; }
.value-sm { font-size: 26px; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.value-sm .unit { font-size: 12px; color: var(--text-dim); margin-left: 4px; font-weight: 400; }
.meta-sm { color: var(--text-dim); font-size: 10px; margin-top: 4px; font-family: ui-monospace, monospace; }

.trend-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.trend-head h2 { margin: 0; font-size: 16px; font-weight: 600; }
.range { display: flex; gap: 6px; }
.range button { padding: 4px 10px; font-size: 12px; }

.ref-panel {
  background: linear-gradient(180deg, #1f2530 0%, #1a1d24 100%);
  border: 1px solid #2f3a4a; border-left: 3px solid var(--accent);
  border-radius: 10px; padding: 14px 18px; margin-bottom: 14px;
}
.ref-title { color: var(--text); font-size: 13px; font-weight: 600; margin-bottom: 10px; display: flex; align-items: baseline; gap: 12px; }
.ref-meta { color: var(--text-dim); font-size: 11px; font-weight: 400; }
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ref-key { color: var(--text-dim); font-size: 11px; margin-bottom: 4px; }
.ref-val { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.ref-val .unit { font-size: 11px; color: var(--text-dim); margin-left: 4px; font-weight: 400; }
.ref-hint { color: var(--text-dim); font-size: 11px; margin-top: 10px; padding-top: 10px; border-top: 1px dashed #2a3140; }

.chart-block { margin-bottom: 16px; }
.chart-title { color: var(--text); font-size: 13px; font-weight: 600; margin-bottom: 8px; padding-left: 4px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.chart-title .chart-sub { color: var(--text-dim); font-size: 11px; font-weight: 400; }
.chart-wrap {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; height: 280px;
}
.chart-wrap.big { height: 360px; }
.chart-wrap.small { height: 200px; }
.dim { color: var(--text-dim); font-weight: 400; }
.hist-meta { color: var(--text-dim); font-size: 12px; margin-top: 8px; text-align: right; }

footer { color: var(--text-dim); font-size: 11px; text-align: center; margin-top: 32px; }

@media (max-width: 700px) {
  body { padding: 14px 12px 32px; }
  header h1 { font-size: 19px; }
  .cards { grid-template-columns: 1fr; }
  .shared .value { font-size: 28px; }
  .value-sm { font-size: 22px; }
  .chart-wrap { height: 240px; }
  .chart-wrap.big { height: 280px; }
  .ref-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .ref-val { font-size: 18px; }
}