/* Quoll UI — a calm, evidence-first interface. */

:root {
  --bg: #f7f6f2;
  --panel: #ffffff;
  --ink: #1a1d21;
  --ink-soft: #4b5057;
  --muted: #8a8f97;
  --line: #e4e3de;
  --accent: #0a5f52;
  --accent-soft: #e5f1ee;
  --warn: #a65200;
  --danger: #a33737;
  --ok: #2e7d45;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 6px 24px rgba(0,0,0,.05);
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Apple Garamond", Baskerville, "Georgia", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 var(--font-sans);
  text-rendering: optimizeLegibility;
}

body { overflow-x: hidden; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: #f1efe9;
  padding: 2px 6px;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* Topbar ------------------------------------------------------ */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: grid;
  grid-template-columns: auto 1fr minmax(200px, 360px);
  align-items: center;
  gap: 24px;
  height: 60px;
}
.topbar-inner > * { min-width: 0; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 700; letter-spacing: 0.02em;
}
.brand-name { font-size: 18px; letter-spacing: 0.01em; }

.topnav { display: flex; gap: 18px; font-size: 15px; flex-wrap: wrap; }
.topnav a { color: var(--ink-soft); padding: 4px 0; border-bottom: 2px solid transparent; }
.topnav a.is-active { color: var(--ink); border-bottom-color: var(--accent); }

.topsearch { min-width: 0; }
.topsearch input[type="search"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  font-size: 14px;
}
.topsearch input[type="search"]:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.content { padding: 40px 24px 80px; }

@media (max-width: 860px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .content { padding: 24px 16px 56px; }
  .topbar-inner {
    grid-template-columns: 1fr;
    gap: 12px;
    height: auto;
    padding: 12px 0;
  }
  .topnav { gap: 14px; }
}

/* Hero -------------------------------------------------------- */
.hero { padding: 24px 0 36px; }
.hero-title { font: 600 40px/1.1 var(--font-serif); margin: 0 0 6px; letter-spacing: -0.01em; }
.hero-sub { margin: 0 0 20px; color: var(--ink-soft); }
.ask-form textarea {
  width: 100%;
  padding: 16px 18px;
  font: 16px/1.5 var(--font-sans);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  resize: vertical;
}
.ask-form textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.ask-actions { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; }
.checkbox { color: var(--ink-soft); font-size: 14px; display: inline-flex; gap: 8px; align-items: center; }

.btn {
  appearance: none; border: 0; cursor: pointer;
  padding: 10px 18px; font-size: 15px; font-weight: 500;
  border-radius: 8px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #084c42; }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); padding: 6px 12px; }
.btn-ghost:hover { background: var(--accent-soft); }

/* Cards ------------------------------------------------------- */
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 0 0 18px;
}
.card-compact { padding: 16px 18px; }
.card-title { margin: 0 0 12px; font-size: 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-soft); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 18px; }
@media (max-width: 720px) { .split, .grid-3 { grid-template-columns: 1fr; } }

.doc-list { list-style: none; margin: 0; padding: 0; }
.doc-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.doc-list li:last-child { border-bottom: 0; }
.doc-list li a { font-weight: 500; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Results ----------------------------------------------------- */
.search-header { margin: 0 0 18px; }
.results-title { font: 600 28px/1.2 var(--font-serif); margin: 0; }
.results-meta { margin-top: 4px; }
.results-meta .warn { color: var(--warn); }

.answer {
  background: var(--accent-soft);
  border-color: #c6ddd7;
  overflow: hidden;
}
.answer-body { font-size: 17px; line-height: 1.6; margin: 0 0 10px; }
.answer-points { margin: 4px 0 0; padding-left: 22px; }
.answer-uncertainty summary { cursor: pointer; color: var(--ink-soft); margin-top: 8px; }
.answer-uncertainty ul { margin-top: 6px; }

.results { display: flex; flex-direction: column; gap: 14px; }
.result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: break-word;
}
.result-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.result-title { font-size: 18px; font-weight: 600; overflow-wrap: break-word; word-break: break-word; min-width: 0; }
.result-score {
  font: 500 13px/1 var(--font-mono);
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
  flex-shrink: 0;
  white-space: nowrap;
}
.result-meta { margin-top: 2px; }
.result-snippet { margin: 10px 0 0; color: var(--ink-soft); line-height: 1.5; overflow-wrap: break-word; word-break: break-word; }
.result-feedback { display: flex; gap: 6px; margin-top: 8px; }
.feedback-btn { background: none; border: 1px solid var(--line); border-radius: 6px; padding: 2px 8px; font-size: 14px; cursor: pointer; opacity: 0.6; transition: opacity .15s, background .15s; }
.feedback-btn:hover { opacity: 1; background: var(--panel); }
.feedback-thanks { font-size: 13px; color: var(--ink-soft); }

/* Search filters --------------------------------------------- */
.search-filters { margin: 0 0 16px; }
.search-filters summary.filter-toggle { cursor: pointer; font-size: 14px; color: var(--ink-soft); user-select: none; list-style: none; display: flex; align-items: center; gap: 6px; }
.search-filters summary.filter-toggle::before { content: "▶"; font-size: 10px; transition: transform .15s; }
.search-filters[open] summary.filter-toggle::before { transform: rotate(90deg); }
.filter-form { padding-top: 12px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.filter-label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--ink-soft); }
.filter-input {
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  min-width: 140px;
  height: 34px;
  line-height: 1.4;
  vertical-align: middle;
}
.filter-input:focus { outline: 2px solid var(--accent); border-color: transparent; }
/* Native <select> ignores some inherited styles — override explicitly */
select.filter-input {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 28px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a8f97' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}
.filter-actions { display: flex; gap: 8px; align-items: center; }
@media (max-width: 720px) {
  .filter-row { flex-direction: column; align-items: stretch; }
  .filter-label, .filter-actions { width: 100%; }
  .filter-input { min-width: 0; width: 100%; }
  .filter-actions { flex-wrap: wrap; }
}

/* Library ----------------------------------------------------- */
.page-head { margin: 0 0 18px; }
.page-head h1 { font: 600 28px/1.2 var(--font-serif); margin: 0 0 4px; }
.filter-bar { display: flex; gap: 6px; margin: 0 0 16px; }
.filter { padding: 6px 12px; border-radius: 999px; color: var(--ink-soft); background: var(--panel); border: 1px solid var(--line); font-size: 14px; }
.filter.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }
.filter:hover { text-decoration: none; }

.library { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.library th, .library td { padding: 10px 14px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
.library th { background: #faf8f3; color: var(--ink-soft); font-weight: 500; white-space: nowrap; }
.library tr:last-child td { border-bottom: 0; }

.status-pill { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 999px; }
.status-processed { background: #e6f2ea; color: var(--ok); }
.status-queued { background: #fff4d6; color: var(--warn); }
.status-processing { background: #e3edf9; color: #1a4c82; }
.status-error { background: #fde2de; color: var(--danger); }
.status-deleted { background: #f0efeb; color: var(--muted); }

/* Document detail -------------------------------------------- */
.document { background: transparent; }
.doc-header { margin: 0 0 22px; }
.breadcrumbs { margin: 0 0 4px; color: var(--muted); font-size: 13px; }
.doc-title { font: 600 34px/1.15 var(--font-serif); margin: 0 0 6px; letter-spacing: -0.01em; }
.doc-source { margin-top: 6px; font-size: 13px; word-break: break-all; overflow-wrap: break-word; }

.doc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
}
@media (max-width: 860px) { .doc-grid { grid-template-columns: 1fr; } }

.doc-body .prose p { margin: 0 0 14px; line-height: 1.65; }
.doc-body h2 { font: 600 18px/1.2 var(--font-serif); margin: 24px 0 8px; }
.chunks .chunk { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; margin: 0 0 12px; }
.chunks .chunk p:last-child { margin: 0; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; font-size: 14px; }
.kv dt { color: var(--ink-soft); }
.kv dd { margin: 0; }

.prompt-dump {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
}

/* Document actions ------------------------------------------- */
.doc-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-xs { padding: 2px 8px; font-size: 12px; }
.ok { color: var(--ok); }

/* Section blocks --------------------------------------------- */
.section-block { margin: 0 0 28px; }
.section-block h2 { font: 600 18px/1.2 var(--font-serif); margin: 0 0 10px; }
.synthesis-note {
  background: var(--bg-soft,#f8f6f0);
  border-left: 3px solid var(--warn,#c9a227);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 20px;
  font-size: 1rem; /* match body text — do not inherit .small */
  line-height: 1.6;
  color: var(--ink-soft);
}
.synthesis-note span[title] { margin-left: 6px; cursor: help; color: var(--warn,#c9a227); }

/* Accordion -------------------------------------------------- */
.accordion { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.accordion-item { border-bottom: 1px solid var(--line); }
.accordion-item:last-child { border-bottom: 0; }
.accordion-head {
  cursor: pointer;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #faf8f3;
  user-select: none;
}
.accordion-head::before { content: "▸"; font-size: 10px; color: var(--muted); }
details[open] .accordion-head::before { content: "▾"; }
.accordion-body { padding: 12px 14px; font-size: 14px; line-height: 1.6; color: var(--ink-soft); }

/* Citations -------------------------------------------------- */
.citation-list { margin: 0; padding: 0 0 0 20px; display: flex; flex-direction: column; gap: 14px; }
.citation-item { font-size: 14px; line-height: 1.5; }
.citation-title { font-weight: 500; display: block; }
.citation-authors, .citation-year { display: inline; }
.citation-doi, .citation-url { display: inline; margin-left: 6px; white-space: nowrap; }
.citation-raw { margin: 4px 0 0; font-style: italic; }

/* Chunks collapse -------------------------------------------- */
.chunks-section summary.chunks-toggle {
  cursor: pointer;
  list-style: none;
  font: 600 14px/1.3 var(--font-sans);
  color: var(--ink-soft);
  padding: 10px 0;
  border-top: 1px solid var(--line);
  user-select: none;
}
.chunks-section summary.chunks-toggle::before { content: "▸ "; font-size: 10px; }
details[open].chunks-section summary.chunks-toggle::before { content: "▾ "; }
.chunks-section .chunks { margin-top: 12px; }

/* FAIR card -------------------------------------------------- */
.fair-card { }
.fair-bars { display: flex; flex-direction: column; gap: 7px; }
.fair-row-total { padding-bottom: 6px; border-bottom: 1px solid var(--line); margin-bottom: 2px; grid-template-columns: 1fr 32px; grid-template-rows: auto auto; }
.fair-row-total .fair-dim { grid-column: 1 / -1; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.fair-row-total .fair-bar-fill { background: var(--ink-soft); }
.fair-row { display: grid; grid-template-columns: 18px 1fr 32px; align-items: center; gap: 8px; }
.fair-dim { font: 700 12px/1 var(--font-mono); color: var(--accent); cursor: help; }
.fair-bar-track { height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; }
.fair-bar-fill { height: 100%; background: var(--accent); border-radius: 999px; }
.fair-pct { text-align: right; }

/* Tags ------------------------------------------------------- */
.tag-group { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.tag-group:last-child { margin-bottom: 0; }
.tag { font-size: 12px; padding: 2px 8px; border-radius: 999px; text-decoration: none; display: inline-block; }
.tag-topic { background: var(--accent-soft); color: var(--accent); }
.tag-topic:hover { opacity: 0.8; }
.tag-keyword { background: #f0efeb; color: var(--ink-soft); }
.tag-keyword:hover { opacity: 0.8; }
.tag-entity { background: #f5f0e8; color: #6b4c00; }
.tag-entity:hover { opacity: 0.8; }

/* Related signals -------------------------------------------- */
.related-list { }
.related-item { padding: 10px 0; }
.related-signals { display: flex; justify-content: space-between; margin-top: 2px; }
.related-label { }
.related-pct { font-family: var(--font-mono); }
.related-reason { margin: 2px 0 0; }

/* Saved list ------------------------------------------------- */
.saved-list li { padding: 10px 0; }

/* Footer ------------------------------------------------------ */
.footer { border-top: 1px solid var(--line); background: var(--panel); color: var(--ink-soft); margin-top: 40px; }
.footer-inner { display: flex; justify-content: space-between; gap: 12px; padding: 16px 24px; font-size: 13px; flex-wrap: wrap; }
@media (max-width: 600px) { .footer-inner { flex-direction: column; gap: 4px; } }

/* Answer confidence badge ------------------------------------ */
.answer-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.answer-header .card-title { margin-bottom: 0; }
.confidence-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  max-width: 100%;
}
.confidence-badge.confidence-high { background: #e6f2ea; color: var(--ok); }
.confidence-badge.confidence-medium { background: #fff4d6; color: var(--warn); }
.confidence-badge.confidence-low { background: #fde2de; color: var(--danger); }
.answer.confidence-high { border-color: #a8d8b3; }
.answer.confidence-low { border-color: #f5b8b2; }

/* Load more -------------------------------------------------- */
.load-more { text-align: center; margin-top: 24px; }

/* Library sortable headers ----------------------------------- */
.library th.sortable:hover { background: #f0ede6; cursor: pointer; }
.sort-icon { font-size: 11px; color: var(--muted); margin-left: 2px; }

/* Pagination ------------------------------------------------- */
.pagination { display: flex; align-items: center; gap: 10px; justify-content: center; margin-top: 24px; }
.pagination-info { min-width: 60px; text-align: center; }
.btn.disabled { opacity: 0.4; pointer-events: none; }

/* Citation row with copy button ------------------------------ */
.citation-row { display: flex; align-items: flex-start; gap: 10px; flex-wrap: wrap; }
.citation-content { flex: 1; }

@media (max-width: 720px) {
  .citation-row { flex-direction: column; }
  .copy-cite { align-self: flex-start; }
}

/* Full text reader ------------------------------------------- */
.full-text-reader {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  white-space: pre-wrap;
  max-height: 600px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  background: var(--panel);
}

/* FAIR popover ----------------------------------------------- */
.fair-help-btn {
  appearance: none; border: 1px solid var(--line); background: var(--bg);
  color: var(--ink-soft); border-radius: 50%; width: 16px; height: 16px;
  font-size: 10px; font-weight: 700; cursor: pointer; padding: 0;
  line-height: 1; vertical-align: middle; margin-left: 4px;
}
.fair-help-btn:hover { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.fair-popover {
  display: none; position: absolute; z-index: 100;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px; font-size: 13px; line-height: 1.5;
  width: 280px; right: 0; top: calc(100% + 6px);
}
.fair-popover.is-open { display: block; }
.fair-popover-close {
  appearance: none; border: 0; background: none; cursor: pointer;
  float: right; font-size: 16px; line-height: 1; color: var(--muted); padding: 0;
}
.fair-popover p { margin: 0 0 8px; }
.fair-popover p:last-child { margin: 0; }
.fair-explain { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 8px 0; }
.fair-explain dt { font-weight: 600; color: var(--accent); white-space: nowrap; }
.fair-explain dd { margin: 0; color: var(--ink-soft); }
.fair-card { position: relative; }

/* Sample query chips ----------------------------------------- */
.sample-queries {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-top: 14px;
}
.sample-queries-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--ink-soft); flex-shrink: 0;
}
.sample-query {
  appearance: none; border: 1px solid var(--line);
  background: var(--panel); border-radius: 100px;
  padding: 5px 14px; font-size: 13px; color: var(--ink-soft);
  cursor: pointer; transition: background 0.12s, border-color 0.12s, color 0.12s;
  text-align: left; line-height: 1.4; font-family: var(--font-sans);
}
.sample-query:hover {
  background: var(--accent-soft); border-color: var(--accent); color: var(--accent);
}

/* Print stylesheet ------------------------------------------- */
@media print {
  .topbar, .footer, .doc-actions, .fair-help-btn, .fair-popover,
  .chunks-section, .copy-cite, nav.pagination, .load-more { display: none !important; }
  body { background: #fff; font-size: 12pt; color: #000; }
  .container { max-width: 100%; padding: 0; }
  .content { padding: 0; }
  .doc-grid { grid-template-columns: 1fr; }
  .doc-sidebar { order: -1; }
  .card { border: 1px solid #ccc; box-shadow: none; page-break-inside: avoid; }
  .accordion-body { display: block !important; }
  details { open: true; }
  details summary { list-style: none; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 10pt; color: #555; }
  .doc-title { font-size: 20pt; }
  .tag { border: 1px solid #ccc; }
  .fair-bar-fill { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}