:root {
  color-scheme: light;
  --bg: #f7f7f5;
  --panel: #ffffff;
  --border: #ddd8d0;
  --text: #1f1d1a;
  --muted: #6b6459;
  --accent: #1f5f4d;
  --supported: #1f7a3d;
  --not-in-source: #8a7a2a;
  --contradicted: #b23b3b;
  --recomputed: #6a3fa0;
  --pending: #9a938a;
  --error-bg: #fbe9e7;
  --error-border: #d98a80;
  --warn-bg: #fdf3d8;
  --warn-border: #e3c46a;
  --info-bg: #eef3f1;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding-block: 24px;
  padding-inline: 20px;
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

main { max-width: 900px; margin: 0 auto; }

.site-header {
  max-width: 900px;
  margin: 0 auto 24px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 20px; color: var(--accent); text-decoration: none; }
.tagline { color: var(--muted); font-size: 13px; }

.intro { color: var(--muted); max-width: 68ch; }

.fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 700px) {
  .fields { grid-template-columns: 1fr; }
}

.field label { display: block; font-weight: 600; margin-bottom: 6px; }
.field .cap { font-weight: 400; color: var(--muted); font-size: 13px; }

textarea {
  width: 100%;
  max-width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font: 13px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace;
  resize: vertical;
}

.wordcount { font-size: 12px; color: var(--muted); margin-top: 4px; text-align: right; }
.wordcount.over { color: var(--contradicted); font-weight: 600; }

.actions { margin-top: 16px; display: flex; gap: 10px; }

button {
  font: inherit;
  padding: 10px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  cursor: pointer;
}
#submit-btn { background: var(--accent); color: white; border-color: var(--accent); font-weight: 600; }
#submit-btn:disabled { opacity: 0.6; cursor: default; }

.banner {
  padding: 12px 16px;
  border-radius: 6px;
  border: 1px solid;
  margin-block: 16px;
}
.banner-error { background: var(--error-bg); border-color: var(--error-border); }
.banner-warn  { background: var(--warn-bg); border-color: var(--warn-border); }
.banner-info  { background: var(--info-bg); border-color: var(--border); }

.receipt-head h1 { margin-bottom: 8px; }
.meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 12px;
  font-size: 14px;
}
.meta dt { color: var(--muted); }
.meta dd { margin: 0; }

.status { text-transform: capitalize; font-weight: 600; }
.status-complete { color: var(--supported); }
.status-failed { color: var(--contradicted); }
.status-extracting, .status-matching { color: var(--not-in-source); }

.claims { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-direction: column; gap: 16px; }
.claim {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}
.claim-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.claim-type { text-transform: uppercase; font-size: 11px; letter-spacing: 0.05em; color: var(--muted); font-weight: 600; }

.verdict {
  font-weight: 700;
  font-size: 13px;
  text-transform: capitalize;
  padding: 3px 10px;
  border-radius: 999px;
  color: white;
}
.verdict-supported { background: var(--supported); }
.verdict-not_in_source { background: var(--not-in-source); }
.verdict-contradicted { background: var(--contradicted); }
.verdict-recomputed { background: var(--recomputed); }
.verdict-pending { background: var(--pending); }

.weak-evidence {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px dashed var(--not-in-source);
  color: var(--not-in-source);
  background: transparent;
}

blockquote {
  margin: 8px 0;
  padding: 8px 12px;
  border-left: 3px solid var(--border);
  background: var(--bg);
  border-radius: 0 4px 4px 0;
  font-size: 14px;
}
blockquote.source-span { border-left-color: var(--accent); }

.claim-detail {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 2px 10px;
  font-size: 13px;
  margin: 8px 0;
}
.claim-detail dt { color: var(--muted); }
.claim-detail dd { margin: 0; }

.note { font-size: 13px; color: var(--muted); margin: 6px 0; }
.method { font-size: 12px; color: var(--muted); margin: 4px 0 0; }
.method code { background: var(--bg); padding: 1px 5px; border-radius: 4px; }

.permalink { margin-top: 24px; font-size: 13px; color: var(--muted); word-break: break-all; }

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #16151a;
    --panel: #201f26;
    --border: #35333d;
    --text: #eceae6;
    --muted: #9a95a3;
    --accent: #4fbf98;
    --supported: #2f8f56;
    --not-in-source: #a8912f;
    --contradicted: #c14f4f;
    --recomputed: #8a5fce;
    --pending: #6b6675;
    --error-bg: #3a2320;
    --error-border: #7a3b34;
    --warn-bg: #3a3220;
    --warn-border: #7a6a34;
    --info-bg: #202a26;
  }
}