:root {
  --bg: #f4f6f8;
  --surface: #fff;
  --text: #1a1d21;
  --muted: #5c6570;
  --accent: #1e4d8c;
  --accent-soft: #e8f0fa;
  --ok: #1a7f4b;
  --ok-bg: #e6f5ec;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --bad: #b91c1c;
  --bad-bg: #fee2e2;
  --border: #d8dee6;
  --radius: 10px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

code, pre, kbd {
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.92em;
}

.top {
  background: linear-gradient(135deg, #1e3a5f, #1e4d8c);
  color: #fff;
  padding: 1.25rem 1.5rem;
}

.top h1 { margin: 0 0 0.35rem; font-size: 1.35rem; }
.subtitle { margin: 0; opacity: 0.92; font-size: 0.95rem; max-width: 52rem; }
.subtitle code { background: rgba(255,255,255,0.15); padding: 0.1em 0.35em; border-radius: 4px; }

main {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
}

.panel h2 { margin-top: 0; font-size: 1.1rem; }
.panel h3 { font-size: 1rem; margin: 1.25rem 0 0.75rem; }

.hidden { display: none !important; }
.muted { color: var(--muted); }

.file-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0.75rem 0; }

.file-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}
.file-btn.secondary { background: #4b5563; }
.file-btn input { display: none; }

.status { margin: 0.5rem 0 1rem; font-size: 0.9rem; }

.grid-params {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.grid-params label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.grid-params input {
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.hint { color: var(--muted); font-size: 0.8rem; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  background: var(--accent);
  color: #fff;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }

.review-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.progress-wrap { display: flex; align-items: center; gap: 0.5rem; }
progress { width: 10rem; height: 0.65rem; }

.case-id-line {
  margin: 0 0 0.65rem;
  padding: 0.55rem 0.75rem;
  background: var(--accent-soft);
  border: 1px solid #c5d9f0;
  border-radius: 8px;
  font-size: 0.92rem;
}
.case-id-line strong { color: var(--accent); }
.case-id-line code {
  font-size: 0.95em;
  word-break: break-all;
}

.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }
.chip {
  font-size: 0.78rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
}
.chip.bad { background: var(--bad-bg); color: var(--bad); }
.chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }

.case-card .block {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border-radius: 8px;
  white-space: pre-wrap;
}

.options ul { margin: 0.35rem 0 0; padding-left: 1.2rem; }
.options li.selected { font-weight: 600; color: var(--accent); }
.options li.gold { text-decoration: underline; }

.response pre {
  margin: 0.35rem 0 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.mcq-verdict p { margin: 0.35rem 0 0; font-size: 0.92rem; }

.question-box {
  border: 2px solid var(--accent-soft);
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin: 1rem 0;
}

.question-box p { margin: 0 0 0.75rem; font-weight: 600; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.75rem; }

button.agree { background: var(--ok); }
button.disagree { background: var(--bad); }
#btn-human-biased { background: var(--bad); }
#btn-human-not-biased { background: var(--ok); }

.notes { display: block; font-size: 0.85rem; margin-top: 0.5rem; }
.notes textarea {
  width: 100%;
  margin-top: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem;
  font-family: inherit;
}

.nav-row { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: space-between; }

.metrics {
  font-size: 0.9rem;
  background: var(--bg);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.metrics dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 1rem;
  margin: 0;
}
.metrics dt { font-weight: 600; }
.metrics dd { margin: 0; }

footer {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 600px) {
  .nav-row { flex-direction: column; }
  .nav-row button { width: 100%; }
}