* { box-sizing: border-box; }

:root {
  --bg: #FFFFFF;
  --bg-muted: #F7F6F3;
  --border: #E5E3DC;
  --text-primary: #1C1B18;
  --text-secondary: #6B6A62;
  --text-muted: #A19E93;
  --brand: #D97757;
  --brand-hover: #C6683F;
  --danger: #B54B3E;
  --success: #4B7A5B;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: #FBFAF7;
  color: var(--text-primary);
}

.wrap { max-width: 760px; margin: 0 auto; padding: 40px 24px 100px; }

header { margin-bottom: 24px; }
.header-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
h1 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 28px;
  font-weight: 500;
}
.subtitle {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-secondary);
}
#model-label { color: var(--text-primary); }

.mode-pill {
  font-size: 12px;
  color: var(--text-secondary);
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  background: var(--bg-muted);
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.metric-card {
  background: var(--bg-muted);
  border-radius: 8px;
  padding: 1rem;
}
.metric-label { font-size: 13px; color: var(--text-secondary); margin: 0 0 6px; }
.metric-value {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 26px;
  font-weight: 500;
  margin: 0;
  color: var(--text-primary);
}
.metric-value.danger { color: var(--danger); }

.panel {
  background: var(--bg);
  border: 0.5px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}
.panel h2 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 500;
}

.control-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.control-row label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
  flex: 1;
  min-width: 130px;
}
select, input[type="number"] {
  height: 36px;
  border: 0.5px solid var(--border);
  border-radius: 6px;
  padding: 0 10px;
  font-family: inherit;
  font-size: 13.5px;
  background: var(--bg);
  color: var(--text-primary);
}
select:focus, input:focus, button:focus {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

button#generate-btn {
  height: 36px;
  padding: 0 20px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
}
button#generate-btn:disabled { opacity: 0.5; cursor: default; }
button#generate-btn:hover:not(:disabled) { background: var(--brand-hover); }

.error-box {
  margin-top: 14px;
  padding: 10px 14px;
  background: #FBEEEC;
  border: 0.5px solid var(--danger);
  color: var(--danger);
  border-radius: 6px;
  font-size: 13px;
}

.empty { color: var(--text-muted); font-size: 13.5px; margin: 0; }

.qcard { border-top: 0.5px solid var(--border); padding: 14px 0; }
.qcard:first-child { border-top: none; padding-top: 0; }
.qnum { font-size: 12px; color: var(--text-muted); margin: 0 0 6px; }
.qtext { font-size: 15px; margin: 0 0 10px; line-height: 1.4; }
.opts { display: flex; gap: 8px; flex-wrap: wrap; }
.opt {
  font-size: 12.5px;
  padding: 4px 10px;
  border-radius: 6px;
  border: 0.5px solid var(--border);
  color: var(--text-secondary);
}
.opt.correct { border-color: var(--success); color: var(--success); }
.opt.lie { border-color: var(--danger); color: var(--danger); }
.opts-stacked { flex-direction: column; align-items: flex-start; }
.opt.stacked { width: 100%; }
.ref { font-size: 12px; color: var(--text-muted); margin: 8px 0 0; }
.explanation { font-size: 13px; color: var(--text-secondary); margin: 6px 0 0; font-style: italic; }

.log-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.log-table th {
  text-align: left;
  padding: 6px 10px;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 0.5px solid var(--border);
}
.log-table td { padding: 8px 10px; border-bottom: 0.5px solid var(--border); }
.log-table .empty { text-align: center; padding: 18px; }
.result-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px; }
.result-dot.ok { background: var(--success); }
.result-dot.err { background: var(--danger); }

.raw-json {
  background: var(--bg-muted);
  border: 0.5px solid var(--border);
  color: var(--text-secondary);
  padding: 14px;
  border-radius: 8px;
  font-family: ui-monospace, "SF Mono", monospace;
  font-size: 11.5px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 380px;
  overflow-y: auto;
  margin: 0;
}