:root {
  --paper: #f7f6f2;
  --surface: #ffffff;
  --surface-soft: #fbfaf7;
  --ink: #18221c;
  --muted: #5f6f65;
  --rule: #d6ddd4;
  --accent: #2e7d4f;
  --accent-soft: #4caf78;
  --shadow-soft: 0 20px 50px rgba(24, 34, 28, 0.05);
  --serif: 'EB Garamond', Georgia, serif;
  --mono: 'JetBrains Mono', monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(76, 175, 120, 0.07), transparent 28%),
    linear-gradient(180deg, #faf8f4 0%, var(--paper) 100%);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
}

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 32px 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.92rem;
}

.shell {
  display: grid;
  gap: 24px;
}

.hero,
.panel,
.signal-card,
.discovery-card,
.gap-card,
.score-item {
  background: var(--surface);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-soft);
}

.hero {
  padding: 32px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  color: var(--accent);
  background: rgba(76, 175, 120, 0.08);
  font-family: var(--mono);
  font-size: 0.8rem;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 400;
  line-height: 1.08;
}

.subtitle {
  margin: 0;
  max-width: 680px;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-meta {
  margin-top: 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.88rem;
}

.hero-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-chip {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--rule);
  background: var(--surface-soft);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.panel {
  padding: 26px 28px 30px;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.6rem;
  font-weight: 400;
}

.section-note {
  margin: 0 0 18px;
  color: var(--muted);
}

.signals-grid,
.discoveries-grid,
.gaps-grid,
.score-grid,
.pipeline-grid,
.input-grid {
  display: grid;
  gap: 18px;
}

.signals-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.discoveries-grid,
.gaps-grid,
.score-grid,
.pipeline-grid,
.input-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.signal-card,
.discovery-card,
.gap-card,
.score-item,
.step-card,
.input-card,
.reason-card {
  padding: 18px 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-soft);
}

.stat-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 1.9rem;
  line-height: 1.1;
}

.signal-id,
.card-label {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.signal-card h3,
.discovery-card h3,
.gap-card h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.2;
}

.meta-list {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.96rem;
}

.meta-list strong {
  color: var(--ink);
  font-weight: 500;
}

.signal-card p,
.discovery-card p,
.gap-card p {
  margin: 0;
}

.signal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.paper-link {
  white-space: nowrap;
}

.refresh-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.refresh-button {
  appearance: none;
  border: 1px solid rgba(46, 125, 79, 0.28);
  background: var(--surface);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 10px 14px;
  cursor: pointer;
}

.refresh-button[disabled] {
  opacity: 0.6;
  cursor: wait;
}

.refresh-status {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.discovery-card {
  background: linear-gradient(180deg, #ffffff 0%, #fbfaf7 100%);
}

.step-card,
.input-card,
.reason-card {
  background: var(--surface);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-soft);
}

.step-index {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.78rem;
}

.step-card h3,
.input-card h3,
.reason-card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  font-weight: 400;
}

.input-card p,
.step-card p,
.reason-card p {
  margin: 0;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.source-card {
  padding: 16px 18px;
  border: 1px solid var(--rule);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.source-card strong {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
}

.sample-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 18px;
}

.reason-list {
  display: grid;
  gap: 12px;
}

.reason-label {
  display: block;
  margin-bottom: 5px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.76rem;
  text-transform: uppercase;
}

.status-panel,
.error-panel,
.noscript-panel {
  background: var(--surface-soft);
}

.error-panel .section-note {
  color: #7a4338;
}

@media (max-width: 720px) {
  .page {
    padding: 20px 16px 48px;
  }

  .hero,
  .panel,
  .signal-card,
  .discovery-card,
  .gap-card,
  .score-item,
  .step-card,
  .input-card,
  .reason-card {
    padding-left: 18px;
    padding-right: 18px;
  }

  .sample-grid {
    grid-template-columns: 1fr;
  }
}