:root {
  color-scheme: light;
  --ink: #17201a;
  --muted: #59635f;
  --line: #d7ded9;
  --paper: #f7f8f4;
  --panel: #ffffff;
  --green: #214f3c;
  --blue: #1c4f78;
  --amber: #946400;
  --focus: #0a6ea8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  align-items: center;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 58px;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0;
}

.site-header nav {
  display: flex;
  gap: 18px;
  font-size: 0.94rem;
}

main {
  margin: 0 auto;
  max-width: 1180px;
  padding: 28px;
}

.search-band {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(240px, 0.8fr) minmax(320px, 1.2fr);
  padding: 34px 0 30px;
}

.eyebrow {
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  font-size: 2.3rem;
  line-height: 1.08;
  margin-bottom: 12px;
}

.search-copy p:last-child,
.results-heading p {
  color: var(--muted);
  max-width: 680px;
}

.search-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.search-form label,
.filters legend {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.search-row {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr auto;
  margin-top: 6px;
}

input[type="text"],
input[name="q"] {
  border: 1px solid #bdc8c0;
  border-radius: 6px;
  color: var(--ink);
  font: inherit;
  min-height: 44px;
  min-width: 0;
  padding: 10px 12px;
  width: 100%;
}

button {
  background: var(--green);
  border: 1px solid var(--green);
  border-radius: 6px;
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 750;
  min-height: 44px;
  padding: 0 18px;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus), transparent 65%);
  outline-offset: 2px;
}

.filters {
  border: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
}

.check {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: inline-flex;
  gap: 6px;
  min-height: 34px;
  padding: 5px 9px;
}

.check input {
  margin: 0;
}

.status-strip {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr);
  padding: 18px 0;
}

.status-strip div {
  align-items: baseline;
  display: flex;
  gap: 8px;
}

.status-strip strong {
  color: var(--amber);
  font-size: 1.4rem;
}

.status-strip span {
  color: var(--muted);
}

.results-heading {
  padding: 28px 0 10px;
}

.results-list,
.comparison-grid {
  display: grid;
  gap: 16px;
}

.source-group {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.source-group > header {
  align-items: center;
  background: #eef2ed;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  padding: 14px 16px;
}

.source-group h3,
.source-group p {
  margin-bottom: 0;
}

.source-group header span {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green);
  font-weight: 800;
  min-width: 34px;
  padding: 3px 8px;
  text-align: center;
}

.result-row {
  align-items: center;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr auto;
  padding: 15px 16px;
}

.result-row:last-child {
  border-bottom: 0;
}

.result-row h4 {
  margin-bottom: 5px;
}

.result-row p {
  color: var(--muted);
  margin-bottom: 6px;
}

.result-row small {
  color: var(--amber);
  font-weight: 700;
}

.result-row > span {
  color: var(--blue);
  font-weight: 800;
}

.starter-topics {
  padding: 28px 0;
}

.topic-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topic-links a,
.source-links a,
.comparison-item a {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: inline-flex;
  font-weight: 750;
  min-height: 38px;
  padding: 8px 12px;
}

.article-layout {
  align-items: start;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) 330px;
}

.article-body {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
}

.subtitle {
  color: var(--muted);
  font-size: 1.05rem;
}

.quality-banner {
  background: #f3efdf;
  border: 1px solid #dfcf9a;
  border-radius: 6px;
  color: #684600;
  font-weight: 750;
  margin-bottom: 22px;
  padding: 10px 12px;
}

.entry-text {
  font-size: 1.05rem;
  max-width: 78ch;
}

.citation-panel,
.comparison-item,
.empty-state {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.citation-panel {
  position: sticky;
  top: 82px;
}

.citation-panel h2 {
  font-size: 1rem;
}

dl {
  display: grid;
  gap: 8px;
  grid-template-columns: 96px 1fr;
  margin: 0 0 18px;
}

dt {
  color: var(--muted);
  font-weight: 750;
}

dd {
  margin: 0;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.scan-preview-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 12px 0 18px;
}

.scan-preview {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  display: block;
  overflow: hidden;
}

.scan-preview img {
  aspect-ratio: 3 / 4;
  background: #eef2ed;
  display: block;
  object-fit: cover;
  object-position: top;
  width: 100%;
}

.scan-preview span {
  display: block;
  font-size: 0.8rem;
  font-weight: 750;
  padding: 6px 8px;
}

.page-reference-details summary {
  color: var(--blue);
  cursor: pointer;
  font-weight: 800;
}

.page-list {
  columns: 2;
  max-height: 280px;
  overflow: auto;
  padding-left: 18px;
}

.comparison-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.comparison-item h2 {
  font-size: 1.05rem;
  margin-bottom: 5px;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 780px) {
  .site-header {
    padding: 0 16px;
  }

  main {
    padding: 18px;
  }

  .search-band,
  .article-layout {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.8rem;
  }

  .search-row,
  .status-strip {
    grid-template-columns: 1fr;
  }

  .citation-panel {
    position: static;
  }
}