:root {
  --bg: #f7f8f6;
  --bg-alt: #ffffff;
  --text: #1c2422;
  --text-muted: #55625d;
  --border: #dde2de;
  --accent: #2c5f4f;
  --accent-dark: #1c4438;
  --good: #4c8c3c;
  --good-bg: #eaf4e4;
  --bad: #c1622b;
  --bad-bg: #fbebe0;
  --ugly: #a3282f;
  --ugly-bg: #f8e1e0;
  --mixed-bg: linear-gradient(90deg, var(--good-bg), var(--bad-bg));
  --max-width: 920px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181a;
    --bg-alt: #1b2124;
    --text: #e7ece9;
    --text-muted: #a3aca7;
    --border: #313a3d;
    --accent: #7fbfa4;
    --accent-dark: #a6d9c2;
    --good: #79c364;
    --good-bg: #1f2c1c;
    --bad: #e08a4f;
    --bad-bg: #302019;
    --ugly: #e3676c;
    --ugly-bg: #331c1d;
    --mixed-bg: linear-gradient(90deg, #1f2c1c, #302019);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Georgia", "Iowan Old Style", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent-dark); }
a:hover { color: var(--accent); }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

header.hero {
  background: var(--accent-dark);
  color: #f4f7f5;
  padding: 3rem 0 2.5rem;
}
header.hero a { color: #d7ecdf; }

.venue-tag {
  display: inline-block;
  font-family: system-ui, sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1rem;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 1rem;
}

.authors {
  font-family: system-ui, sans-serif;
  font-size: 1rem;
  margin: 0 0 0.25rem;
}
.affiliations {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  color: #cfe3d7;
  margin: 0 0 1.5rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.btn {
  font-family: system-ui, sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: #f4f7f5;
  color: var(--accent-dark);
}
.btn-primary:hover { background: #ffffff; }
.btn-outline {
  border-color: rgba(255,255,255,0.55);
  color: #f4f7f5;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); }
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

main { padding: 2.5rem 0 1rem; }

section { margin-bottom: 3rem; }

h2 {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.abstract p { margin: 0; font-size: 1.05rem; }

figure { margin: 0; }
figure img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  display: block;
  background: #fff;
}
figcaption {
  font-family: system-ui, sans-serif;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.6rem;
}
figcaption a { white-space: nowrap; }

/* Table filters */
.table-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.2rem;
  align-items: flex-end;
  margin-bottom: 1rem;
  font-family: system-ui, sans-serif;
}
.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.control-group label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.control-group select, .control-group input[type="search"] {
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-alt);
  color: var(--text);
  min-width: 170px;
}
.result-count {
  font-family: system-ui, sans-serif;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.row-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.15rem;
  margin-bottom: 0.9rem;
}
.row-card-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  align-items: center;
  margin-bottom: 0.55rem;
  font-family: system-ui, sans-serif;
}
.pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--border);
  color: var(--text);
}
.pill-facet { background: rgba(44,95,79,0.12); color: var(--accent-dark); }
.pill-gbu-good { background: var(--good-bg); color: var(--good); }
.pill-gbu-bad { background: var(--bad-bg); color: var(--bad); }
.pill-gbu-ugly { background: var(--ugly-bg); color: var(--ugly); }
.pill-gbu-mixed { background: var(--mixed-bg); color: var(--text); }
.pill-tech {
  font-weight: 500;
  background: transparent;
  border: 1px solid var(--border);
}

.row-summary { font-size: 1rem; margin: 0 0 0.5rem; }
.row-acts {
  font-family: system-ui, sans-serif;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}
.row-sources {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  padding-left: 1.1rem;
}
.row-sources li { margin-bottom: 0.3rem; }

.no-results {
  font-family: system-ui, sans-serif;
  color: var(--text-muted);
  padding: 1.5rem;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
}

.feedback-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  text-align: center;
}
.feedback-box p { margin: 0 0 1rem; font-family: system-ui, sans-serif; font-size: 0.95rem; }

.citation-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.15rem;
}
.citation-box pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "SF Mono", Menlo, monospace;
  font-size: 0.82rem;
  margin: 0 0 0.6rem;
  color: var(--text-muted);
}
.copy-btn {
  font-family: system-ui, sans-serif;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 0.3rem 0.7rem;
  border-radius: 5px;
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 3rem;
  font-family: system-ui, sans-serif;
  font-size: 0.82rem;
  color: var(--text-muted);
}

@media (max-width: 600px) {
  h1 { font-size: 1.5rem; }
  header.hero { padding: 2.2rem 0 2rem; }
}