/* PaperGuard SPA — low-saturation warm palette, generous whitespace. */
:root {
  --bg: #faf6f0;
  --panel: #ffffff;
  --ink: #3d3329;
  --muted: #8a7d6d;
  --line: #e7ddd0;
  --accent: #b5542f;
  --accent-dark: #96421f;
  --critical: #a63a2b;
  --high: #c06a35;
  --medium: #c79a3f;
  --low: #7d8f5a;
  --info: #8f8577;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-variant-numeric: slashed-zero; font-feature-settings: "zero" 1;
  line-height: 1.55;
}

.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1020px;
  margin: 0 auto;
  padding: 20px 32px;
  display: flex;
  align-items: baseline;
  gap: 18px;
}
.brand { font-size: 22px; font-weight: bold; letter-spacing: 0.02em; }
.tagline { color: var(--muted); font-size: 14px; }

.container { max-width: 1020px; margin: 0 auto; padding: 40px 32px 80px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px 32px;
  margin-bottom: 24px;
}
.panel h1 { font-size: 24px; margin: 0 0 8px; }
.panel h2 { font-size: 18px; margin: 0 0 14px; }
.lede { color: var(--muted); max-width: 62ch; }
.muted { color: var(--muted); }

.dropzone {
  display: block;
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  margin: 20px 0;
  background: #fdfaf5;
}
.dropzone.dragover { border-color: var(--accent); background: #faf1e8; }
.dropzone input { display: none; }
.dropzone-title { display: block; font-size: 17px; }
.dropzone-hint { display: block; color: var(--muted); font-size: 13px; margin-top: 6px; }

.file-list { list-style: none; padding: 0; margin: 0 0 20px; }
.file-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 8px;
  background: #fdfaf5;
  font-size: 14px;
}
.role-badge {
  background: #efe3d3;
  color: #7a5a38;
  border-radius: 12px;
  padding: 2px 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.actions { display: flex; align-items: center; gap: 16px; margin-top: 8px; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-family: inherit;
  letter-spacing: 0.06em;
  cursor: pointer;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:disabled { background: #d8c9ba; cursor: not-allowed; }

.btn-secondary {
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 22px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.loading { color: var(--muted); font-style: italic; }
.error { color: var(--critical); }
.success { color: #55663a; }

.status-banner {
  border-radius: 10px;
  padding: 20px 28px;
  font-size: 19px;
  font-weight: bold;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  border: 1px solid var(--line);
}
.status-banner.attention { background: #f6dcd2; color: var(--critical); }
.status-banner.minor { background: #f6ecd4; color: #8a6a20; }
.status-banner.clean { background: #e6ecd9; color: #55663a; }

.cards { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.card {
  flex: 1 1 140px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
}
.card .num { font-size: 30px; font-weight: bold; }
.card .lbl { color: var(--muted); font-size: 13px; text-transform: capitalize; }
.card.critical { border-top: 3px solid var(--critical); }
.card.high { border-top: 3px solid var(--high); }
.card.medium { border-top: 3px solid var(--medium); }
.card.low { border-top: 3px solid var(--low); }
.card.informational { border-top: 3px solid var(--info); }

.bar-row { display: flex; align-items: center; gap: 14px; margin: 10px 0; font-size: 14px; }
.bar-row .name { flex: 0 0 220px; }
.bar { flex: 1; height: 12px; background: #efe6da; border-radius: 6px; overflow: hidden; }
.bar span { display: block; height: 12px; background: var(--accent); border-radius: 6px; }
.bar-row .val { flex: 0 0 44px; text-align: right; color: var(--muted); }

.stats-grid { display: flex; flex-wrap: wrap; gap: 24px; font-size: 14px; }
.stats-grid .stat .num { font-size: 22px; font-weight: bold; }
.stats-grid .stat .lbl { color: var(--muted); }

.report-links { display: flex; flex-wrap: wrap; gap: 12px; }
.report-links a {
  display: inline-block;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 8px;
  padding: 8px 18px;
  text-decoration: none;
  font-size: 14px;
}
.report-links a:hover { background: var(--accent); color: #fff; }

.filters { display: flex; gap: 20px; margin-bottom: 18px; font-size: 14px; }
.filters label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); }
.filters select, .review-form input {
  font-family: inherit;
  font-size: 14px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
}

.issue-list { display: flex; flex-direction: column; gap: 12px; }
.issue-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  background: #fdfaf5;
  cursor: pointer;
}
.issue-card:hover { border-color: var(--accent); }
.issue-card .head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.issue-card .ri { font-weight: bold; }
.issue-card .type { color: var(--muted); font-size: 13px; }
.issue-card .claim { font-size: 14px; margin: 4px 0 0; }
.issue-card .meta { color: var(--muted); font-size: 13px; margin-top: 6px; }

.badge {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 12px;
  font-size: 12px;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.badge.critical { background: var(--critical); }
.badge.high { background: var(--high); }
.badge.medium { background: var(--medium); }
.badge.low { background: var(--low); }
.badge.informational { background: var(--info); }

.evidence-item {
  background: #faf3ea;
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  margin: 10px 0;
  border-radius: 0 8px 8px 0;
}
.evidence-item .src { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.evidence-item .quote {
  font-style: italic;
  background: #f3e7d7;
  padding: 2px 5px;
  border-radius: 4px;
}
.evidence-item .value { font-size: 13px; color: var(--muted); margin-top: 4px; }

.review-form { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 16px; font-size: 14px; }
.review-form label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); flex: 1 1 220px; }

.review-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.btn-review {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 9px 18px;
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
}
.btn-review:hover { border-color: var(--accent); color: var(--accent); }

.history-list { list-style: none; padding: 0; margin: 0; }
.history-list li { margin-bottom: 8px; }
.history-list a { color: var(--accent); text-decoration: none; }
.history-list a:hover { text-decoration: underline; }
.history-list .muted { font-size: 13px; margin-left: 8px; }

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  font-style: italic;
  text-align: center;
  padding: 24px 16px 40px;
}

/* PaperGuard X additions */
.audit-config { margin: 18px 0 6px; padding: 16px 18px; background: #faf3ea;
  border: 1px solid var(--line, #e7ddd0); border-radius: 10px;
  display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.config-row { display: flex; align-items: flex-start; gap: 14px; flex-wrap: wrap; }
.config-label { color: var(--muted, #8a7d6d); font-size: 12px; letter-spacing: .06em;
  text-transform: uppercase; min-width: 84px; padding-top: 9px; }
.config-value { color: #4a4238; padding-top: 8px; }
.mode-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; flex: 1; min-width: 260px; }
.mode-option { display: flex; align-items: flex-start; gap: 8px; cursor: pointer;
  padding: 10px 12px; background: #fff; border: 1px solid var(--line, #e7ddd0);
  border-radius: 8px; transition: border-color .15s, background .15s; }
.mode-option:hover { border-color: #c9a08a; }
.mode-option input { margin-top: 3px; accent-color: #b5542f; }
.mode-option:has(input:checked) { border-color: #b5542f; background: #fdf3ec; }
.mode-text { display: flex; flex-direction: column; gap: 2px; }
.mode-name { font-weight: 600; color: #4a4238; }
.mode-hint { color: var(--muted, #8a7d6d); font-size: 12px; line-height: 1.35; }
@media (max-width: 720px) {
  .mode-options { grid-template-columns: 1fr; }
  .config-label { padding-top: 0; min-width: 100%; }
}
.prov-chain { font-size: 13.5px; padding: 6px 10px; margin: 4px 0;
  border-left: 3px solid #b5542f; background: #faf3ea; }
.prov-chain.ok { border-left-color: #7d8f5a; }
.prov-chain.warn { border-left-color: #c79a3f; }

/* API connection status */
.api-status { margin: 6px 0 14px; font-size: 13px; color: var(--muted, #8a7d6d);
  padding: 6px 10px; border-radius: 6px; background: #f4efe8; word-break: break-all; }
.api-status.ok { color: #4c7a3f; background: #eef4e8; }
.api-status.bad { color: #a33b26; background: #f8e9e5; }

/* Provenance chains presentation */
.prov-summary { margin: 2px 0 10px; font-size: 13.5px; color: var(--muted, #8a7d6d); }
.prov-chain.pending { border-left-color: #c9c1b6; background: #f4f1ec; color: var(--muted, #8a7d6d); }
.prov-group { margin: 8px 0 2px; }
.prov-group summary { cursor: pointer; font-size: 13px; color: var(--muted, #8a7d6d);
  padding: 6px 10px; background: #f4f1ec; border-radius: 6px; user-select: none; }
.prov-group summary:hover { color: #4a4238; }
.prov-group[open] summary { margin-bottom: 6px; }

/* Conflict comparison (side-by-side) */
.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 10px 0 12px; }
.cmp-side { border: 1px solid var(--line, #e7ddd0); border-radius: 8px; padding: 12px 14px;
  background: #fff; cursor: pointer; transition: box-shadow .15s, border-color .15s, background .15s; }
.cmp-side:hover { border-color: #c9a08a; }
.cmp-side.active { border-color: #b5542f; background: #fdf3ec; box-shadow: 0 0 0 2px rgba(181, 84, 47, .18); }
.cmp-head { font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase;
  color: var(--muted, #8a7d6d); margin-bottom: 8px; }
.cmp-quote { font-size: 14px; line-height: 1.7; color: #3d372f; }
.cmp-value { margin-top: 8px; font-size: 12.5px; color: var(--muted, #8a7d6d); }
mark.num { background: transparent; color: inherit; cursor: pointer; }
.cmp-quote mark.num.diff, .cmp-value mark.num.diff, mark.num.diff {
  background: #c0392b; color: #fff; padding: 0 3px; border-radius: 3px;
  font-weight: 600; cursor: pointer; }
.cmp-quote mark.num.num-active, .cmp-value mark.num.num-active {
  background: #7d2d1d; color: #fff; }
.cmp-hint { font-size: 12px; margin: 2px 0 12px; }
@media (max-width: 720px) { .cmp { grid-template-columns: 1fr; } }

/* Conflict comparison blocks on the dashboard */
.conflict-block { border: 1px solid var(--line, #e7ddd0); border-radius: 10px;
  padding: 14px 16px; margin: 12px 0; background: #fff; }
.conflict-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 6px; }
.conflict-head .ri { font-weight: 700; color: #4a4238; }
.conflict-title { color: var(--muted, #8a7d6d); font-size: 13.5px; }

/* Source/location folded into the quote as a parenthetical */
.cmp-src { color: var(--muted, #8a7d6d); font-size: 12px; }

/* Language check panel */
.lang-row { border: 1px solid var(--line, #e7ddd0); border-radius: 8px;
  padding: 10px 12px; margin: 8px 0; background: #fff; font-size: 13.5px; }
.lang-row.spelling { border-left: 3px solid #c79a3f; }
.lang-row.grammar { border-left: 3px solid #7d8f5a; }
.lang-kind { display: inline-block; font-size: 11px; letter-spacing: .05em;
  text-transform: uppercase; color: var(--muted, #8a7d6d);
  background: #f4efe8; border-radius: 10px; padding: 1px 8px; margin-right: 8px; }
.lang-title { font-weight: 600; color: #4a4238; }
.lang-loc { color: var(--muted, #8a7d6d); font-size: 11.5px; margin: 5px 0 3px; }
.lang-quote { color: #3d372f; line-height: 1.6; }

/* Language error highlight inside full-paragraph quotes */
.lang-quote { margin-top: 4px; padding: 8px 10px; background: #faf7f2;
  border-radius: 6px; line-height: 1.75; }
.lang-quote mark.lang-err { background: #c0392b; color: #fff;
  padding: 0 3px; border-radius: 3px; font-weight: 600; }