:root {
  --bg: #f5f7fb;
  --bg-soft: #eef2f8;
  --panel: rgba(255, 255, 255, 0.94);
  --panel-strong: #ffffff;
  --line: #d8e0ec;
  --line-strong: #c1cddd;
  --text: #111827;
  --muted: #566276;
  --muted-strong: #405064;
  --accent: #173c7a;
  --accent-strong: #102a57;
  --shadow: 0 20px 48px rgba(15, 23, 42, 0.06);
  --knowledge-head: rgba(224, 236, 255, 0.92);
  --agentic-head: rgba(255, 236, 212, 0.92);
  --reasoning-head: rgba(227, 243, 232, 0.92);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(23, 60, 122, 0.05), transparent 24%),
    radial-gradient(circle at top right, rgba(148, 163, 184, 0.1), transparent 26%),
    linear-gradient(180deg, #fbfcff 0%, var(--bg) 38%, var(--bg-soft) 100%);
  font-family: "IBM Plex Sans", "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

code,
button,
input,
select,
.stat-box strong,
.panel-meta,
.chip,
.text-link,
.pass-axis-label,
.pass-value-label {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.hero,
.sub-hero,
.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero,
.sub-hero {
  padding: 28px 32px 30px;
}

.panel {
  padding: 26px 28px;
}

.top-nav,
.panel-head,
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.panel-head > div,
.section-head > div {
  min-width: 0;
}

.brand-pill,
.top-nav-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
}

.brand-pill {
  padding: 7px 12px;
  background: rgba(23, 60, 122, 0.08);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  gap: 8px;
}

.brand-mark {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.top-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.top-nav-links a {
  padding: 8px 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.top-nav-links a:hover,
.top-nav-links a.is-active {
  background: rgba(255, 255, 255, 0.82);
  color: var(--accent);
}

.hero-copy {
  max-width: 820px;
  margin-top: 24px;
}

.compact-copy {
  max-width: 760px;
}

.hero-kicker,
.eyebrow,
.stat-label,
.card-kicker,
.field span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-copy h1,
.panel-head h2,
.section-head h2,
.protocol-family-title {
  margin: 0;
  font-family: "Charter", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  margin-top: 10px;
  font-size: clamp(2.3rem, 5vw, 4.8rem);
  line-height: 0.98;
}

.hero-copy p,
.panel-note,
.prose-card p,
.card-copy,
.section-note {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.hero-copy p {
  max-width: 72ch;
  font-size: 1.02rem;
}

.hero-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
  font-size: 0.94rem;
}

.hero-authors a {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid rgba(193, 205, 221, 0.86);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted-strong);
  line-height: 1.2;
}

.hero-authors a:hover {
  color: var(--accent);
  border-color: rgba(23, 60, 122, 0.24);
}

.hero-project-link {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero-project-link a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid rgba(193, 205, 221, 0.86);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--accent);
  font-weight: 600;
  line-height: 1.2;
}

.hero-project-link a:hover {
  border-color: rgba(23, 60, 122, 0.28);
  background: rgba(247, 250, 255, 0.96);
}

.hero-advantages {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border: 1px solid rgba(193, 205, 221, 0.86);
  border-radius: 999px;
  background: rgba(248, 250, 255, 0.96);
  color: var(--muted-strong);
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.2;
}

.meta-strip,
.sub-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.stat-box {
  min-width: 140px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
}

.stat-box strong {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
}

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

.page-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 18px;
}

.panel-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.05;
}

.panel-meta {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.prose-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.prose-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
}

.prose-card strong,
.featured-block strong {
  display: block;
  line-height: 1.35;
}

.reading-panel .prose-card {
  padding: 22px 22px 20px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
}

.reading-panel .prose-card p {
  margin-top: 10px;
}

.reading-panel .panel-note {
  max-width: 74ch;
}

.inline-emphasis {
  color: var(--accent-strong);
  font-weight: 700;
}

.reading-split {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.95fr);
  gap: 18px;
  margin-top: 18px;
}

.narrative-card {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
}

.reading-lead {
  margin: 0;
  color: var(--muted-strong);
  font-size: 1.04rem;
  line-height: 1.8;
}

.narrative-list {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.narrative-item + .narrative-item {
  padding-top: 18px;
  border-top: 1px solid rgba(216, 224, 236, 0.78);
}

.prose-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(23, 60, 122, 0.08);
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.prose-title {
  margin: 12px 0 0;
  font-family: "Charter", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.12rem;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--accent-strong);
}

.narrative-card p {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.75;
}

.reading-points {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.reading-points li {
  padding-top: 14px;
  border-top: 1px solid rgba(216, 224, 236, 0.78);
  color: var(--muted);
  line-height: 1.75;
}

.reading-points li:first-child {
  padding-top: 0;
  border-top: 0;
}

.reading-points strong {
  color: var(--accent-strong);
}

.reading-footnote {
  margin-top: 14px;
  font-size: 0.9rem;
}

.inline-note {
  display: inline;
  color: var(--muted);
}

.table-shell {
  overflow: auto;
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-strong);
}

.academic-table {
  width: 100%;
  min-width: 880px;
  border-collapse: collapse;
}

.academic-table th,
.academic-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(216, 224, 236, 0.76);
  text-align: left;
  vertical-align: top;
}

.academic-table th {
  display: table-cell;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.academic-table td {
  font-size: 0.93rem;
  line-height: 1.55;
}

.academic-table tbody tr:nth-child(even) {
  background: rgba(247, 250, 255, 0.84);
}

.protocol-table thead {
  background: rgba(242, 246, 252, 0.96);
}

.protocol-annotation {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.protocol-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.protocol-family {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
  overflow: hidden;
}

.protocol-family-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid rgba(216, 224, 236, 0.78);
  background: rgba(248, 250, 255, 0.96);
}

.protocol-family-title {
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 1.1;
}

.protocol-family-meta,
.protocol-mode-meta {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.protocol-shell {
  margin-top: 0;
  border: 0;
  border-radius: 0 0 22px 22px;
  background: transparent;
  box-shadow: none;
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-cot {
  background: rgba(222, 234, 255, 0.96);
  color: #244b94;
}

.mode-nocot {
  background: rgba(239, 242, 247, 0.96);
  color: #4b5d74;
}

.protocol-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.protocol-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border: 1px solid rgba(216, 224, 236, 0.82);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--muted-strong);
  font-size: 0.8rem;
  line-height: 1.2;
}

.protocol-mini-table {
  min-width: 980px;
}

.protocol-mini-table td:nth-child(2),
.protocol-mini-table td:nth-child(3),
.protocol-mini-table td:nth-child(4) {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
  white-space: nowrap;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.category-card {
  display: block;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.92);
  transition:
    transform 140ms ease,
    border-color 140ms ease;
}

.category-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.card-title {
  display: block;
  margin-top: 8px;
  font-size: 1.02rem;
  line-height: 1.35;
}

.card-meta {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.card-copy {
  font-size: 0.94rem;
}

.chip-row,
.download-links,
.featured-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-row {
  margin-top: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

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

.downloads-panel .download-links {
  margin-top: 10px;
}

.download-links a,
.text-link {
  color: var(--accent);
  font-weight: 700;
}

.download-links a:hover,
.text-link:hover {
  color: var(--accent-strong);
}

.featured-block {
  margin-top: 18px;
}

.featured-list {
  margin-top: 10px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

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

.field span {
  font-size: 0.72rem;
}

button,
select {
  border-radius: 14px;
}

button {
  padding: 10px 15px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  transition:
    transform 140ms ease,
    background-color 140ms ease;
}

button:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
}

.benchmark-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 16px;
}

.benchmark-section {
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.95);
  min-width: 0;
}

.benchmark-title {
  margin: 6px 0 0;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.section-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.84rem;
}

.section-tools > * {
  min-width: 0;
  overflow-wrap: anywhere;
}

.benchmark-section .table-shell {
  margin-top: 14px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.benchmark-section .academic-table thead {
  background: var(--knowledge-head);
}

.section-head {
  flex-wrap: wrap;
}

body[data-category="agentic"] .benchmark-section .academic-table thead {
  background: var(--agentic-head);
}

body[data-category="reasoning"] .benchmark-section .academic-table thead {
  background: var(--reasoning-head);
}

.pass-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.pass-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(249, 251, 255, 0.94);
  min-width: 0;
}

.pass-title {
  font-weight: 700;
  line-height: 1.4;
}

.chart-shell {
  position: relative;
  margin-top: 12px;
  width: 100%;
  padding: 12px;
  border: 1px solid rgba(216, 224, 236, 0.8);
  border-radius: 18px;
  background: #ffffff;
  min-width: 0;
  overflow: hidden;
}

.pass-svg {
  display: block;
  width: 100%;
  height: auto;
}

.pass-grid {
  stroke: rgba(193, 205, 221, 0.86);
  stroke-width: 1;
}

.pass-line {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pass-dot {
  fill: #eef3ff;
  stroke: var(--accent);
  stroke-width: 2;
}

.pass-hover-target {
  fill: transparent;
  cursor: crosshair;
}

.pass-axis-label,
.pass-value-label {
  fill: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.chart-tooltip {
  position: absolute;
  z-index: 4;
  transform: translate(-50%, -100%);
  padding: 7px 10px;
  border-radius: 12px;
  background: rgba(17, 24, 39, 0.94);
  color: #ffffff;
  font-size: 0.78rem;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.2);
}

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

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

.subset-group-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-stack > *,
.protocol-groups > *,
.benchmark-stack > *,
.pass-stack > *,
.subset-group-stack > * {
  min-width: 0;
}

.subset-group {
  padding: 14px;
  border: 1px solid rgba(216, 224, 236, 0.72);
  border-radius: 18px;
  background: rgba(250, 252, 255, 0.82);
}

.subset-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.subset-title {
  font-size: 1rem;
  line-height: 1.35;
}

.subset-group .table-shell {
  margin-top: 10px;
}

.detail-shell .academic-table thead {
  background: rgba(242, 246, 252, 0.96);
}

.qa-breakdown-table th:nth-child(3),
.qa-breakdown-table td:nth-child(3) {
  background: rgba(232, 246, 236, 0.52);
}

.qa-breakdown-table th:nth-child(4),
.qa-breakdown-table td:nth-child(4) {
  background: rgba(255, 241, 236, 0.58);
}

.qa-breakdown-table th:nth-child(5),
.qa-breakdown-table td:nth-child(5) {
  background: rgba(241, 244, 250, 0.72);
}

.qa-breakdown-table td:nth-child(3),
.qa-breakdown-table td:nth-child(4),
.qa-breakdown-table td:nth-child(5) {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
  white-space: nowrap;
}

.single-metric-table td:nth-child(3) {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
  white-space: nowrap;
}

.bfcl-table th:nth-child(3),
.bfcl-table td:nth-child(3) {
  background: rgba(232, 246, 236, 0.52);
}

.bfcl-table th:nth-child(4),
.bfcl-table td:nth-child(4) {
  background: rgba(240, 246, 255, 0.62);
}

.bfcl-table th:nth-child(5),
.bfcl-table td:nth-child(5) {
  background: rgba(255, 242, 232, 0.58);
}

.bfcl-table td:nth-child(n + 3) {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
  white-space: nowrap;
}

.metric-matrix-table {
  min-width: 940px;
}

.ifeval-table,
.zebra-table {
  min-width: 900px;
}

.ifeval-table td:nth-child(n + 3),
.zebra-table td:nth-child(n + 3),
.pass-milestone-table td:nth-child(n + 3) {
  font-family: "JetBrains Mono", "SFMono-Regular", "Menlo", monospace;
  white-space: nowrap;
}

.ifeval-table th:nth-child(3),
.ifeval-table td:nth-child(3),
.ifeval-table th:nth-child(4),
.ifeval-table td:nth-child(4) {
  background: rgba(232, 246, 236, 0.5);
}

.ifeval-table th:nth-child(5),
.ifeval-table td:nth-child(5),
.ifeval-table th:nth-child(6),
.ifeval-table td:nth-child(6) {
  background: rgba(240, 246, 255, 0.58);
}

.pass-milestone-table {
  min-width: 760px;
}

.pass-milestone-table th:nth-child(3),
.pass-milestone-table td:nth-child(3),
.pass-milestone-table th:nth-child(4),
.pass-milestone-table td:nth-child(4),
.pass-milestone-table th:nth-child(5),
.pass-milestone-table td:nth-child(5),
.pass-milestone-table th:nth-child(6),
.pass-milestone-table td:nth-child(6) {
  background: rgba(240, 246, 255, 0.56);
}

.pass-milestone-table th:nth-child(7),
.pass-milestone-table td:nth-child(7) {
  background: rgba(232, 246, 236, 0.5);
}

.empty-note {
  padding: 16px;
  border: 1px dashed var(--line-strong);
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.92);
  line-height: 1.65;
}

.compact-note {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

body[data-category="reasoning"] .section-tools {
  row-gap: 8px;
}

body[data-category="reasoning"] .benchmark-section .table-shell {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}

body[data-category="reasoning"] .benchmark-section {
  overflow: hidden;
}

body[data-category="reasoning"] .chart-shell {
  padding: 10px;
}

body[data-category="reasoning"] .pass-card {
  padding: 14px;
}

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

  .reading-split {
    grid-template-columns: 1fr;
  }

  .top-nav,
  .panel-head,
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .academic-table {
    min-width: 760px;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100%, calc(100% - 16px));
    padding-top: 16px;
  }

  .hero,
  .sub-hero,
  .panel {
    padding: 18px;
    border-radius: 22px;
  }

  .hero-copy h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .meta-strip,
  .sub-hero-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-advantages,
  .protocol-annotation,
  .protocol-family-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .stat-box {
    width: 100%;
  }
}