/* BookTrace styles -- inherits the EvidenceToolbox design system exactly
   (see parent CLAUDE.md "DESIGN SYSTEM" section). Additions specific to
   BookTrace (term chips, result groups, tooltips) use the existing accent
   colors only -- no new colors introduced. */

:root {
  --navy: #1F3B57;
  --teal: #1C8C8C;
  --teal-hover: #166f6f;
  --nav-bg: #17304a;
  --gold: #D9A441;
  --cream: #F7F3EC;
  --white: #FFFFFF;
  --body-text: #111111;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Lora', Georgia, serif;

  --max-width: 900px;

  /* Result group colors -- factual, not hierarchical (build spec 8.1) */
  --group-1-accent: #2D8F5C;   /* muted green: text match */
  --group-2-accent: #B8862C;   /* muted gold: split match */
  --group-3-accent: #2F6FAF;   /* muted blue: catalogue-only match */
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--body-text);
  background: var(--cream);
  margin: 0;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px;
}

section { margin: 40px auto; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; color: var(--navy); }
h2.section-title { font-size: 1.9rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.2rem; margin-top: 0; }

a { color: var(--teal); }
a:hover { color: var(--teal-hover); }

/* ---------- header ---------- */
.site-header {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 40px 20px;
  text-align: center;
}
.site-header .linen-texture {
  position: absolute; inset: 0; pointer-events: none; opacity: 0.18;
}
.site-header h1 {
  font-size: 2.4rem; letter-spacing: 1px; color: var(--white);
  margin: 0; position: relative;
}
.site-header .tagline {
  font-family: var(--font-display); font-style: italic; font-size: 1.2rem;
  color: var(--gold); margin: 8px 0 0; position: relative;
}

/* ---------- nav ---------- */
.site-nav {
  background: var(--nav-bg);
  border-bottom: 2px solid var(--teal);
  padding: 10px 20px;
}
.site-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; justify-content: center; flex-wrap: wrap; gap: 2rem;
}
.site-nav a {
  color: var(--white); font-size: 0.95rem; font-weight: 500;
  text-decoration: none; padding-bottom: 4px; border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a.active {
  color: var(--gold); border-bottom-color: var(--gold);
}

/* ---------- page subhead ---------- */
.page-subhead {
  font-weight: 500; font-size: 1.05rem; color: #444; margin-top: 0.25rem;
}

/* ---------- cards ---------- */
.card {
  background: var(--white);
  border-left: 6px solid var(--teal);
  border-radius: 0 6px 6px 0;
  padding: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  margin-bottom: 20px;
}

/* ---------- lists ---------- */
ul.styled-list { list-style: none; padding-left: 0; }
ul.styled-list li {
  position: relative; padding-left: 22px; margin-bottom: 0.4rem;
}
ul.styled-list li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 8px; height: 8px; border-radius: 50%; background: var(--teal);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-block; background: var(--teal); color: var(--white);
  font-weight: 600; padding: 12px 20px; border-radius: 4px;
  text-decoration: none; border: none; cursor: pointer; font-size: 1rem;
  font-family: var(--font-body);
}
.btn:hover { background: var(--teal-hover); color: var(--white); }
.btn.btn-secondary {
  background: transparent; color: var(--teal); border: 2px solid var(--teal);
  padding: 10px 18px;
}
.btn.btn-secondary:hover { background: var(--teal); color: var(--white); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--navy); color: var(--white); text-align: center;
  padding: 20px; font-size: 0.9rem; margin-top: 40px;
}
.site-footer a { color: var(--white); text-decoration: underline; }

/* ============================================================
   BookTrace-specific: search form
   ============================================================ */
.search-form label { font-weight: 600; display: block; margin-bottom: 4px; color: var(--navy); }
.search-form .field { margin-bottom: 1.25rem; }
.search-form .helper-text {
  font-size: 0.9rem; color: #555; margin-top: 4px;
}
.search-form .helper-text.caveat { font-style: italic; }
.search-form input[type=text],
.search-form input[type=number],
.search-form select {
  width: 100%; padding: 10px 12px; border: 1px solid #ccc; border-radius: 4px;
  font-family: var(--font-body); font-size: 1rem;
}
.search-form .given-name-field { width: 60%; }

.chip-input {
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
  border: 1px solid #ccc; border-radius: 4px; padding: 8px; background: var(--white);
}
.chip-input input {
  border: none; outline: none; flex: 1; min-width: 120px; font-size: 1rem;
  font-family: var(--font-body); padding: 4px;
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--cream); border: 1px solid var(--teal); border-radius: 999px;
  padding: 4px 10px; font-size: 0.9rem;
}
.chip button {
  background: none; border: none; color: var(--navy); cursor: pointer;
  font-size: 1rem; line-height: 1; padding: 0;
}

.checkbox-row, .radio-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.segmented-toggle { display: inline-flex; border: 1px solid var(--teal); border-radius: 4px; overflow: hidden; }
.segmented-toggle button {
  background: var(--white); border: none; padding: 8px 16px; cursor: pointer;
  font-family: var(--font-body); font-size: 0.95rem;
}
.segmented-toggle button.active { background: var(--teal); color: var(--white); }

.year-range { display: flex; gap: 12px; align-items: flex-end; }
.year-range .field { flex: 1; margin-bottom: 0; }

.search-tips {
  font-size: 0.9rem; color: #555; border: 1px dashed #ccc; border-radius: 4px;
  padding: 10px; margin-top: 8px;
}
.search-tips summary { cursor: pointer; font-weight: 600; color: var(--navy); }

/* ============================================================
   BookTrace-specific: results
   ============================================================ */
#results-area { margin-top: 20px; }

.empty-state, .loading-state, .negative-state {
  background: var(--white); border-left: 6px solid var(--teal);
  border-radius: 0 6px 6px 0; padding: 24px; text-align: left;
}
.negative-state.true-negative { border-left-color: var(--group-1-accent); }
.negative-state.partial-negative { border-left-color: var(--group-2-accent); }

.citation-box {
  background: var(--cream); border: 1px solid #ccc; border-radius: 4px;
  padding: 14px; font-family: var(--font-body); font-size: 0.95rem;
  margin: 12px 0; white-space: pre-wrap;
}

.truncation-banner {
  background: #fff3cd; border: 1px solid var(--gold); border-radius: 4px;
  padding: 10px 14px; margin-bottom: 16px; font-size: 0.9rem;
}

.group-header {
  border-top: 3px solid; border-bottom: 3px solid; padding: 10px 0;
  margin: 24px 0 12px;
}
.group-header h3 { margin: 0; font-size: 1.15rem; }
.group-header .group-count { font-size: 0.9rem; color: #555; }
.group-header.group-1 { border-color: var(--group-1-accent); }
.group-header.group-2 { border-color: var(--group-2-accent); }
.group-header.group-3 { border-color: var(--group-3-accent); }

.result-card {
  background: var(--white); border-radius: 6px; box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  padding: 16px 20px; margin-bottom: 14px;
}
.result-card .result-title { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; color: var(--navy); margin: 0; }
.result-card .result-meta { font-size: 0.9rem; color: #555; margin: 4px 0 10px; }
.result-card .term-dots { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 6px; }
.term-dot {
  display: inline-flex; align-items: center; gap: 5px; font-size: 0.85rem;
  padding: 3px 8px; border-radius: 999px; background: var(--cream);
}
.term-dot .dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.term-dot.found-text .dot { background: var(--group-1-accent); }
.term-dot.found-catalogue .dot { background: var(--group-3-accent); }
.term-dot.found-both .dot {
  background: linear-gradient(90deg, var(--group-1-accent) 50%, var(--group-3-accent) 50%);
}
.term-dot.not-found .dot { background: transparent; border: 2px solid #aaa; }
.result-card .result-summary { font-size: 0.9rem; color: #444; margin-bottom: 10px; }
.result-card .entity-fact { font-weight: 600; color: var(--navy); }
.result-card .result-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.result-details { margin-top: 14px; border-top: 1px solid #eee; padding-top: 14px; }
.result-details h4 { font-family: var(--font-display); font-size: 1rem; color: var(--navy); margin: 0 0 6px; }
.term-pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.term-pill {
  font-size: 0.85rem; padding: 4px 10px; border-radius: 999px; color: var(--white);
}
.term-pill.pill-text { background: var(--group-1-accent); }
.term-pill.pill-catalogue { background: var(--group-3-accent); }
.term-pill.pill-not-found { background: #999; }
.book-detail-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.book-detail-table td { padding: 4px 8px 4px 0; vertical-align: top; }
.book-detail-table td.label { font-weight: 600; color: var(--navy); width: 160px; }
.tooltip-icon {
  cursor: help; color: var(--teal); border-bottom: 1px dotted var(--teal);
}

/* ---------- modal (TOC viewer) ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center; z-index: 100;
  padding: 20px;
}
.modal-box {
  background: var(--white); border-radius: 6px; max-width: 640px; width: 100%;
  max-height: 80vh; overflow-y: auto; padding: 20px;
}
.modal-box .modal-label { font-style: italic; color: #555; font-size: 0.9rem; margin-bottom: 10px; }
.modal-box pre { white-space: pre-wrap; font-family: var(--font-body); font-size: 0.95rem; }

/* ---------- pagination ---------- */
.pagination { display: flex; gap: 10px; justify-content: center; margin: 20px 0; }

/* ---------- FAQ ---------- */
.faq-category-title {
  font-size: 1.4rem;
  margin: 32px 0 14px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--teal);
}
.faq-category-title:first-of-type { margin-top: 0; }
.faq-item { margin-bottom: 20px; }
.faq-item:last-child { margin-bottom: 0; }
.faq-q { font-weight: 600; color: var(--navy); margin-bottom: 4px; }
.faq-a a { color: var(--teal); text-decoration: none; }
.faq-a a:hover { color: var(--teal-hover); text-decoration: underline; }

/* ---------- inline citation example (FAQ + guide) ---------- */
.citation-example {
  background: var(--cream); border: 1px solid #ccc; border-radius: 4px;
  padding: 14px; font-size: 0.95rem; margin: 10px 0;
}

/* ---------- mobile ---------- */
@media (max-width: 640px) {
  .search-form .given-name-field { width: 100%; }
  .refine-search-toggle { display: block; margin: 12px 0; }
  .refine-search-body[hidden] { display: none; }
  .result-card { padding: 12px 14px; }
  .term-pill-row { flex-direction: column; }
  .book-detail-table td.label { width: 120px; }
}
@media (min-width: 641px) {
  .refine-search-toggle { display: none; }
}