:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-soft: #eef6f5;
  --ink: #202124;
  --ink-soft: #4b5563;
  --muted: #6b7280;
  --line: #d9dde3;
  --line-strong: #c6ccd5;
  --teal: #0f8f88;
  --blue: #2563eb;
  --green: #16843a;
  --amber: #c66a05;
  --rose: #d4214f;
  --shadow: 0 10px 30px rgba(31, 41, 55, 0.08);
  --radius: 8px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: 0;
}

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

a:hover {
  text-decoration: underline;
}

button,
input,
select {
  font: inherit;
  letter-spacing: 0;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 56px;
  padding: 0 24px;
  border-bottom: 1px solid rgba(217, 221, 227, 0.86);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-size: 12px;
}

.topnav {
  display: flex;
  gap: 16px;
  margin-left: auto;
  font-size: 14px;
}

.topnav a {
  color: var(--ink-soft);
}

.page-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.intro-band {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  padding: 26px 0 22px;
  border-bottom: 1px solid var(--line);
}

.profile-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.avatar {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  object-fit: cover;
  background: #dfe4ea;
  border: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 0;
  font-size: 38px;
  line-height: 1.1;
  font-weight: 780;
}

.intro-text {
  max-width: 820px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
}

.intro-status {
  display: grid;
  gap: 8px;
  min-width: 220px;
  justify-items: end;
  color: var(--muted);
  font-size: 13px;
}

.intro-status span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.dashboard-layout {
  display: grid;
  grid-template-columns: 276px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding-top: 24px;
}

.control-panel {
  position: sticky;
  top: 76px;
  display: grid;
  gap: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.search-wrap,
.control-group {
  display: grid;
  gap: 8px;
}

.search-wrap label,
.control-heading {
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
}

input[type="search"],
select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  padding: 8px 10px;
}

input[type="search"]:focus,
select:focus,
button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.2);
  outline-offset: 2px;
}

.segmented {
  display: grid;
  gap: 6px;
}

.segment,
.role-button,
.chip,
.mini-chip,
.topic-mini,
.filter-token,
.reset-button,
.topic-chip,
.bar-row,
.year-item {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

.segment,
.role-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 34px;
  padding: 7px 10px;
  text-align: left;
}

.segment:hover,
.role-button:hover,
.chip:hover,
.mini-chip:hover,
.topic-mini:hover,
.filter-token:hover,
.reset-button:hover,
.topic-chip:hover,
.bar-row:hover,
.year-item:hover {
  border-color: var(--teal);
  background: var(--surface-soft);
}

.is-active {
  border-color: var(--teal);
  background: #e3f3f1;
}

.toggle-row {
  display: flex;
  gap: 9px;
  align-items: start;
  color: var(--ink-soft);
  font-size: 14px;
}

.toggle-row input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--teal);
}

.active-filters {
  display: flex;
  min-height: 34px;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-token {
  min-height: 28px;
  padding: 5px 8px;
  color: var(--teal);
  font-size: 12px;
}

.reset-button {
  min-height: 34px;
  color: var(--ink-soft);
}

.workspace {
  display: grid;
  gap: 24px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.summary-card,
.chart-panel,
.paper-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.summary-card {
  display: grid;
  gap: 3px;
  min-height: 110px;
  padding: 16px;
}

.summary-card span {
  color: var(--muted);
  font-size: 13px;
}

.summary-card strong {
  font-size: 34px;
  line-height: 1.1;
}

.summary-card em {
  color: var(--ink-soft);
  font-size: 13px;
  font-style: normal;
}

.charts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 16px;
  align-items: start;
}

.chart-stack {
  display: grid;
  align-content: start;
  gap: 16px;
}

.chart-panel {
  display: grid;
  gap: 14px;
  min-height: 240px;
  padding: 18px;
}

.chart-panel.wide {
  grid-column: span 1;
}

.topics-panel {
  gap: 10px;
  min-height: 0;
  padding: 14px 16px;
}

.panel-heading,
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

h2 {
  margin-bottom: 0;
  font-size: 18px;
  line-height: 1.2;
}

.panel-note {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

#year-range {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 14px;
}

.chart-legend {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.legend-swatch.first-author {
  background: var(--teal);
}

.legend-swatch.coauthor {
  background: var(--blue);
}

.year-chart {
  display: flex;
  min-height: 190px;
  align-items: end;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 2px 2px;
}

.year-item {
  display: grid;
  grid-template-rows: 24px 154px 22px;
  gap: 5px;
  min-width: 58px;
  padding: 7px 6px;
  justify-items: center;
}

.year-count,
.year-label {
  color: var(--ink-soft);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.year-stack {
  display: flex;
  width: 26px;
  align-self: end;
  flex-direction: column;
  justify-content: end;
  overflow: hidden;
  border-radius: 5px 5px 3px 3px;
  background: #dce3ea;
}

.year-segment {
  display: block;
  width: 100%;
  min-height: 0;
}

.year-segment.first-author {
  background: var(--teal);
}

.year-segment.coauthor {
  background: var(--blue);
}

.venue-chart,
.collaborator-chart {
  display: grid;
  align-content: start;
  gap: 8px;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(104px, 1fr) minmax(120px, 1.35fr) 28px;
  gap: 10px;
  align-items: center;
  min-height: 36px;
  padding: 7px 9px;
  text-align: left;
}

.bar-row.compact {
  grid-template-columns: minmax(160px, 1fr) minmax(130px, 1.35fr) 28px;
}

.bar-label {
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-track {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #e3e8ee;
}

.bar-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}

.bar-row strong {
  color: var(--ink);
  font-size: 13px;
  text-align: right;
}

.role-chart {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.donut {
  display: grid;
  width: 142px;
  height: 142px;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fff 0 55%, transparent 56%),
    conic-gradient(var(--teal) 0 calc(var(--first) * 1%), var(--blue) 0 100%);
}

.donut span,
.donut em {
  grid-area: 1 / 1;
}

.donut span {
  margin-top: -14px;
  font-size: 30px;
  font-weight: 780;
}

.donut em {
  margin-top: 34px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.role-buttons {
  display: grid;
  gap: 8px;
}

.topic-cloud {
  display: flex;
  min-height: 118px;
  align-content: start;
  flex-wrap: wrap;
  gap: 9px;
}

.topics-panel .topic-cloud {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 0;
  gap: 5px;
  overflow: visible;
  padding-bottom: 0;
}

.topic-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 7px 10px;
  color: var(--ink-soft);
  font-size: calc(13px * var(--weight));
}

.topics-panel .topic-chip {
  width: 100%;
  justify-content: space-between;
  gap: 5px;
  min-height: clamp(28px, calc(24px * var(--weight)), 40px);
  padding: 5px 7px;
  font-size: clamp(10.5px, calc(8.8px * var(--weight)), 14px);
  font-weight: 650;
  line-height: 1.1;
  text-align: left;
}

.topics-panel .topic-chip span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.topic-chip strong {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 999px;
  background: #e3e8ee;
  color: var(--ink);
  font-size: 12px;
}

.topics-panel .topic-chip strong {
  min-width: clamp(18px, calc(15.5px * var(--weight)), 24px);
  height: clamp(18px, calc(15.5px * var(--weight)), 24px);
  flex: 0 0 auto;
  font-size: clamp(9.5px, calc(8px * var(--weight)), 12px);
}

.paper-section {
  display: grid;
  gap: 12px;
}

.paper-list {
  display: grid;
  gap: 12px;
}

.paper-card {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
}

.paper-year {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: 8px;
  background: #eef2f7;
  color: var(--ink);
  font-weight: 780;
  font-variant-numeric: tabular-nums;
}

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

.paper-meta,
.topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.paper-meta {
  margin-bottom: 9px;
}

.mini-chip,
.topic-mini,
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 24px;
  padding: 3px 7px;
  font-size: 12px;
}

.topic-mini {
  background: #f4f8f7;
  color: var(--teal);
}

.venue-chip {
  font-weight: 750;
}

.venue-ra-l {
  border-color: rgba(15, 143, 136, 0.22);
  background: #e8f7f5;
  color: #08756e;
}

.venue-icra {
  border-color: rgba(37, 99, 235, 0.22);
  background: #edf4ff;
  color: #1d4ed8;
}

.venue-iros {
  border-color: rgba(139, 92, 246, 0.22);
  background: #f3efff;
  color: #6d28d9;
}

.venue-rss {
  border-color: rgba(217, 119, 6, 0.24);
  background: #fff6e8;
  color: #b45309;
}

.venue-cdc {
  border-color: rgba(225, 29, 72, 0.2);
  background: #fff0f4;
  color: #be123c;
}

.venue-ieee-access {
  border-color: rgba(8, 145, 178, 0.22);
  background: #e9f8fb;
  color: #0e7490;
}

.venue-asian-control-conference-ascc,
.venue-icra-workshop,
.venue-rss-workshop,
.venue-institute-of-control-robotics-and-systems-icros,
.venue-journal-of-auto-vehicle-safety-association {
  border-color: rgba(75, 85, 99, 0.2);
  background: #f3f5f7;
  color: #4b5563;
}

.presented-chip {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink-soft);
  font-weight: 700;
}

.status-badge {
  border: 1px solid rgba(198, 106, 5, 0.25);
  border-radius: 6px;
  background: #fff6e8;
  color: var(--amber);
}

.status-badge.excluded {
  border-color: rgba(212, 33, 79, 0.22);
  background: #fff0f4;
  color: var(--rose);
}

.paper-card h3 {
  margin-bottom: 7px;
  font-size: 18px;
  line-height: 1.32;
}

.paper-title-link {
  color: var(--ink);
}

.paper-title-link:hover {
  color: var(--blue);
}

.authors {
  margin-bottom: 10px;
  color: var(--ink-soft);
}

.author-name.self {
  color: var(--ink);
  font-weight: 750;
}

.author-name.equal {
  text-decoration: underline;
  text-decoration-color: rgba(15, 143, 136, 0.45);
  text-underline-offset: 3px;
}

details {
  margin-top: 10px;
}

summary {
  width: fit-content;
  color: var(--teal);
  font-weight: 700;
  cursor: pointer;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(160px, 0.8fr) minmax(120px, 0.6fr) minmax(220px, 1.2fr);
  gap: 14px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.detail-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 12px;
}

.detail-links div {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.paper-link {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  gap: 6px;
  border-radius: 6px;
  padding: 4px 8px;
  background: #edf4ff;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}

.resource-icon {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.resource-icon.brand-icon {
  fill: currentColor;
  stroke: none;
}

.paper-link.project,
.paper-link.demo {
  background: #eaf7f4;
  color: var(--teal);
}

.paper-link.demo {
  background: #eef7ff;
  color: var(--blue);
}

.paper-link.code {
  background: #eef2f7;
  color: var(--ink-soft);
}

.paper-link.video,
.paper-link.poster {
  background: #fff6e8;
  color: var(--amber);
}

.github-star-badge {
  width: auto;
  height: 18px;
  margin-left: 2px;
  border-left: 1px solid rgba(15, 23, 42, 0.18);
  padding-left: 6px;
}

.show-more-button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--teal);
  font-weight: 700;
}

.empty-note,
.empty-state {
  color: var(--muted);
  font-size: 13px;
}

.empty-state {
  display: grid;
  min-height: 80px;
  place-items: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.54);
}

.empty-state.large {
  min-height: 180px;
}

.site-footer {
  display: flex;
  width: min(1440px, 100%);
  margin: 0 auto;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px 32px;
  color: var(--muted);
  font-size: 13px;
}

code {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #fff;
  padding: 2px 5px;
}

@media (max-width: 1120px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }

  .control-panel {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 880px) {
  .topbar {
    padding: 0 16px;
  }

  .topnav {
    display: none;
  }

  .page-shell {
    padding: 18px 16px;
  }

  .intro-band,
  .panel-heading,
  .section-heading,
  .site-footer {
    align-items: start;
    flex-direction: column;
  }

  .intro-status {
    justify-items: start;
  }

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

  .control-panel {
    grid-template-columns: 1fr;
  }

  .role-chart {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  h1 {
    font-size: 30px;
  }

  .intro-text {
    font-size: 15px;
  }

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

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

  .paper-year {
    width: 100%;
    height: 38px;
  }

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

  .bar-row,
  .bar-row.compact {
    grid-template-columns: minmax(120px, 1fr) 28px;
  }

  .bar-track {
    grid-column: 1 / -1;
    order: 3;
  }
}