:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-soft: #f3f5f7;
  --ink: #1b1f24;
  --muted: #6d7680;
  --line: #dde3e8;
  --accent: #3f6fd8;
  --accent-soft: #edf2ff;
  --radius-lg: 18px;
  --radius-md: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  background: var(--bg);
}

.page-shell {
  width: min(1480px, calc(100% - 28px));
  margin: 0 auto;
  padding: 12px 0 24px;
}

.hero,
.filter-ribbon,
.summary-strip,
.content-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.hero {
  margin-bottom: 10px;
  padding: 10px 14px;
}

.hero-row,
.content-toolbar,
.paper-top,
.link-row,
.section-heading,
.hero-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hero-title-block {
  min-width: 0;
}

.hero h1,
h2,
h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  line-height: 1.08;
}

.hero h1 {
  font-size: clamp(1.05rem, 1.4vw, 1.35rem);
  max-width: 18ch;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.metric-item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--surface-soft);
  white-space: nowrap;
}

.metric-item strong {
  font-size: 0.84rem;
}

.metric-item span {
  color: var(--muted);
  font-size: 0.74rem;
}

.workspace {
  display: grid;
  gap: 10px;
}

.filter-ribbon,
.summary-strip,
.content-panel {
  padding: 12px 14px;
}

.filter-ribbon {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) minmax(0, 3fr) auto;
  gap: 12px;
  align-items: end;
}

.filters-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.field-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.text-input,
.select-input,
.ghost-button,
.secondary-button,
.view-button,
.venue-row,
.paper-item {
  border: 1px solid var(--line);
  font: inherit;
}

.text-input,
.select-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--ink);
  background: #fff;
}

.ghost-button,
.secondary-button,
.view-button {
  padding: 10px 13px;
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
}

.secondary-button {
  color: var(--accent);
}

.summary-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.summary-item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
}

.summary-item strong {
  font-size: 0.85rem;
}

.summary-item span {
  color: var(--muted);
  font-size: 0.75rem;
}

.view-switch {
  display: flex;
  gap: 8px;
}

.view-button.is-active {
  background: var(--accent-soft);
  border-color: #cfd9ff;
  color: var(--accent);
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 12px;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.view-panel {
  display: none;
}

.view-panel.is-active {
  display: block;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.list-grid {
  display: grid;
  gap: 0;
}

.paper-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  width: 100%;
  padding: 10px 0;
  border-width: 0 0 1px 0;
  border-radius: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.paper-item:first-child {
  padding-top: 2px;
}

.paper-item.is-selected {
  background: linear-gradient(90deg, var(--accent-soft), transparent 70%);
}

.paper-index {
  color: var(--muted);
  font-weight: 700;
  text-align: right;
  padding-top: 2px;
}

.paper-main {
  min-width: 0;
}

.paper-top {
  align-items: flex-start;
}

.paper-year {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

.paper-title {
  font-size: 1rem;
  color: var(--accent);
}

.paper-authors,
.paper-venue,
.paper-meta {
  margin: 5px 0 0;
  line-height: 1.5;
}

.paper-authors {
  color: var(--ink);
  font-size: 0.9rem;
}

.paper-venue,
.paper-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.paper-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.meta-sep {
  color: #a2acb6;
}

.detail-panel {
  position: sticky;
  top: 12px;
  max-height: calc(100vh - 24px);
  overflow: auto;
  padding-right: 4px;
}

.detail-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.detail-empty {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  color: var(--muted);
  background: #fff;
}

.detail-header h3 {
  font-size: 0.98rem;
  margin-top: 4px;
}

.detail-authors,
.detail-venue {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.84rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.detail-meta {
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff;
}

.detail-meta strong {
  display: block;
  color: var(--muted);
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.detail-meta span {
  display: block;
  margin-top: 4px;
  font-size: 0.82rem;
  word-break: break-word;
}

.detail-block {
  margin-top: 14px;
}

.detail-block strong {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.detail-block p {
  margin: 8px 0 0;
  line-height: 1.6;
  color: var(--ink);
  font-size: 0.84rem;
}

.detail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
  color: #a2acb6;
}

.detail-links a,
.link-row a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
}

.detail-links a:hover,
.link-row a:hover {
  text-decoration: underline;
}

.venues-table {
  display: grid;
  gap: 8px;
}

.venue-row {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 60px;
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 11px 14px;
  border-radius: 999px;
  background: #fff;
  text-align: left;
  cursor: pointer;
}

.venue-row-index,
.venue-row-count {
  color: var(--muted);
  font-weight: 700;
}

.venue-row-name {
  color: var(--ink);
}

.empty-state {
  color: var(--muted);
  padding: 12px 0;
}

@media (max-width: 1180px) {
  .filter-ribbon,
  .split-layout {
    grid-template-columns: 1fr;
  }

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

  .detail-panel {
    position: static;
  }
}

@media (max-width: 900px) {
  .hero-row,
  .content-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

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

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 16px, 1480px);
  }

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

  .hero-metrics,
  .summary-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}