:root {
  --bg: #f6f0e6;
  --paper: #fffdf9;
  --panel: rgba(255, 253, 249, 0.88);
  --line: #ded2be;
  --line-strong: #c6b59b;
  --line-hover: #bfa278;
  --ink: #2b2118;
  --muted: #6d5a47;
  --accent: #0d6a7c;
  --accent-soft: rgba(13, 106, 124, 0.08);
  --accent-hover: #084f5d;
  --warm: #b24c19;
  --warm-soft: rgba(178, 76, 25, 0.1);
  --good: #17693d;
  --good-soft: rgba(23, 105, 61, 0.08);
  --warn: #8d5b00;
  --warn-soft: rgba(141, 91, 0, 0.08);
  --shadow-sm: 0 1px 2px rgba(43, 33, 24, 0.06);
  --shadow: 0 10px 24px rgba(43, 33, 24, 0.06);
  --shadow-lg: 0 20px 40px rgba(43, 33, 24, 0.1);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --font-sans: "IBM Plex Sans", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(178, 76, 25, 0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(13, 106, 124, 0.08), transparent 30%),
    linear-gradient(180deg, #f8f3ea 0%, #f3ebdd 100%);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-shell {
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.surface-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(18px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr);
  gap: 24px;
  padding: 32px;
  margin-bottom: 20px;
  background:
    linear-gradient(145deg, rgba(255, 253, 249, 0.96), rgba(251, 245, 236, 0.96)),
    repeating-linear-gradient(
      -45deg,
      rgba(13, 106, 124, 0.02),
      rgba(13, 106, 124, 0.02) 14px,
      rgba(178, 76, 25, 0.02) 14px,
      rgba(178, 76, 25, 0.02) 28px
    );
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero.compact {
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 1fr);
  padding: 28px;
}

.hero-copy {
  max-width: 840px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--warm);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

.lede {
  margin: 16px 0 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.04rem;
}

.nav-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.nav-group {
  padding: 14px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(198, 181, 155, 0.6);
  border-radius: var(--radius);
}

.nav-label {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-panel a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.78);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
}

.nav-panel a:hover {
  border-color: rgba(13, 106, 124, 0.18);
  color: var(--ink);
}

.nav-panel a.active {
  background: var(--accent-soft);
  border-color: rgba(13, 106, 124, 0.22);
  color: var(--accent-hover);
}

.nav-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: rgba(13, 106, 124, 0.12);
  color: var(--accent-hover);
  font-size: 0.72rem;
  font-weight: 700;
}

.digest-strip,
.queue-strip,
.filters,
.results-head,
.detail-summary {
  margin-bottom: 18px;
  padding: 22px 24px;
}

.digest-strip,
.queue-strip,
.results-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
}

.digest-strip h2,
.queue-strip h2,
.results-head h2,
.detail-card h2 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  line-height: 1.2;
}

.digest-strip p,
.queue-strip p,
.results-head p {
  margin: 0;
  color: var(--muted);
}

.digest-links,
.queue-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.digest-links a,
.queue-links a,
.card-actions a,
.detail-links a,
.similar-card {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-size: 0.9rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.digest-links a:hover,
.queue-links a:hover,
.card-actions a:hover,
.detail-links a:hover,
.similar-card:hover {
  transform: translateY(-1px);
  border-color: var(--line-hover);
  box-shadow: var(--shadow-sm);
}

.queue-links a {
  justify-content: space-between;
  min-width: 150px;
}

.queue-links a.active {
  background: var(--accent-soft);
  border-color: rgba(13, 106, 124, 0.22);
}

.queue-links a span {
  color: var(--accent-hover);
  font-weight: 700;
}

.filters {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px;
}

.filters label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filters .search-field {
  grid-column: span 2;
}

.filters input,
.filters select {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font: inherit;
  text-transform: none;
  letter-spacing: normal;
}

.filters input:focus,
.filters select:focus {
  outline: none;
  border-color: rgba(13, 106, 124, 0.5);
  box-shadow: 0 0 0 4px rgba(13, 106, 124, 0.08);
}

.results-head {
  align-items: center;
}

#visible-count {
  color: var(--ink);
  font-weight: 800;
}

.paper-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 18px;
}

.paper-card,
.detail-card,
.empty-state,
.empty-search-state {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
}

.paper-card {
  min-height: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.paper-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-hover);
  box-shadow: var(--shadow-lg);
}

.paper-topline,
.detail-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.badge,
.score,
.mini-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
}

.badge,
.score {
  padding: 5px 10px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge {
  background: var(--warm-soft);
  border: 1px solid rgba(178, 76, 25, 0.18);
  color: var(--warm);
}

.score {
  background: var(--accent-soft);
  border: 1px solid rgba(13, 106, 124, 0.18);
  color: var(--accent-hover);
}

.mini-chip {
  padding: 6px 10px;
  font-size: 0.76rem;
  color: var(--muted);
  background: rgba(109, 90, 71, 0.08);
  border: 1px solid rgba(109, 90, 71, 0.12);
}

.mini-chip.accent {
  color: var(--accent-hover);
  background: var(--accent-soft);
  border-color: rgba(13, 106, 124, 0.18);
}

.mini-chip.good {
  color: var(--good);
  background: var(--good-soft);
  border-color: rgba(23, 105, 61, 0.16);
}

.mini-chip.warn {
  color: var(--warn);
  background: var(--warn-soft);
  border-color: rgba(141, 91, 0, 0.16);
}

.mini-chip.muted {
  color: var(--muted);
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.paper-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  line-height: 1.28;
  letter-spacing: -0.02em;
}

.paper-card h3 a {
  color: var(--ink);
}

.paper-meta,
.paper-streams,
.paper-abstract,
.annotation,
.detail-card p,
.detail-list dd {
  margin: 0;
  color: var(--muted);
}

.paper-meta {
  margin-bottom: 8px;
  font-size: 0.86rem;
}

.paper-streams {
  margin-bottom: 12px;
  color: var(--accent-hover);
  font-size: 0.9rem;
  font-weight: 600;
}

.paper-abstract {
  flex: 1 1 auto;
  margin-bottom: 16px;
  font-size: 0.94rem;
}

.paper-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(198, 181, 155, 0.75);
}

.paper-fields div,
.score-row {
  display: flex;
  flex-direction: column;
}

.paper-fields dt,
.detail-list dt,
.reason-title,
.detail-section h3 {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.paper-fields dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.reason-block {
  margin-bottom: 16px;
  padding: 14px;
  border-radius: var(--radius);
  background: rgba(13, 106, 124, 0.05);
  border: 1px solid rgba(13, 106, 124, 0.08);
}

.reason-list {
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
  display: grid;
  gap: 8px;
}

.reason-list li {
  font-size: 0.9rem;
  line-height: 1.45;
}

.annotation {
  margin-bottom: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(178, 76, 25, 0.05);
  border-left: 3px solid rgba(178, 76, 25, 0.55);
  font-size: 0.88rem;
}

.annotation strong {
  color: var(--ink);
}

.card-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
}

.card-actions a:first-child,
.detail-links a {
  background: var(--accent);
  border-color: var(--accent);
  color: #f9fbfc;
}

.card-actions a:first-child:hover,
.detail-links a:hover {
  color: #f9fbfc;
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.detail-shell .hero {
  margin-bottom: 20px;
}

.detail-summary {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.detail-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(198, 181, 155, 0.75);
}

.detail-block .paper-meta,
.detail-block .paper-streams,
.detail-block .detail-links {
  margin: 0;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.detail-card {
  gap: 12px;
}

.detail-card pre {
  margin: 0;
  padding: 14px;
  border-radius: var(--radius-sm);
  background: #241c16;
  color: #f8f2eb;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  overflow-x: auto;
}

.detail-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
}

.detail-list dd {
  color: var(--ink);
  font-size: 0.95rem;
}

.detail-section {
  padding-top: 10px;
  border-top: 1px solid rgba(198, 181, 155, 0.5);
}

.detail-section:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.detail-section p {
  color: var(--ink);
}

.detail-reasons {
  margin-bottom: 8px;
}

.score-breakdown {
  display: grid;
  gap: 8px;
}

.score-row {
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(13, 106, 124, 0.05);
  color: var(--ink);
}

.score-row strong {
  color: var(--accent-hover);
}

.similar-list {
  display: grid;
  gap: 10px;
}

.similar-card {
  flex-direction: column;
  align-items: flex-start;
}

.similar-card strong {
  color: var(--ink);
}

.similar-card span {
  color: var(--muted);
  font-size: 0.88rem;
}

.empty-state,
.empty-search-state {
  grid-column: 1 / -1;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  text-align: center;
}

.empty-state {
  border-style: dashed;
  background: rgba(255, 255, 255, 0.55);
  box-shadow: none;
}

.empty-search-state h3,
.empty-state h3 {
  margin: 0 0 8px;
}

.empty-search-state p,
.empty-state p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .hero,
  .hero.compact {
    grid-template-columns: 1fr;
  }

  .filters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .filters .search-field {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  .page-shell {
    width: calc(100% - 24px);
    padding: 20px 0 48px;
  }

  .hero,
  .hero.compact {
    padding: 22px;
    border-radius: 22px;
  }

  .digest-strip,
  .queue-strip,
  .results-head {
    flex-direction: column;
  }

  .filters {
    grid-template-columns: 1fr;
  }

  .filters .search-field {
    grid-column: auto;
  }

  .paper-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .paper-grid {
    grid-template-columns: 1fr;
  }
}

/* Trends page */
.trends-content { max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem; }
.trends-meta { color: var(--muted); margin-bottom: 1.5rem; }
.trends-table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.trends-table th { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 2px solid var(--line-strong); color: var(--muted); }
.trends-table td { padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--line); }
.trend-bars { display: flex; flex-direction: column; gap: 0.3rem; margin: 0.5rem 0; }
.trend-bar { display: flex; align-items: center; gap: 0.5rem; }
.trend-bar-label { font-size: 0.82rem; color: var(--muted); min-width: 6rem; }
.trend-bar-fill { background: var(--accent); color: #fff; font-size: 0.8rem; padding: 0.15rem 0.5rem; border-radius: 3px; min-width: 1.5rem; text-align: center; }
.bibtex-pre { font-size: 0.82rem; white-space: pre-wrap; word-break: break-all; background: var(--bg); padding: 0.8rem; border-radius: 6px; }