/* ═══════════════════════════════════════════
   OlmPool.com — style.css
   Allen AI inspired: white, blue (#1B6FEB), clean
═══════════════════════════════════════════ */

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:       #1B6FEB;
  --blue-dark:  #1558C0;
  --blue-light: #EBF2FF;
  --blue-mid:   #4A90E2;
  --text:       #1A1A2E;
  --text-muted: #5A6478;
  --border:     #E2E8F0;
  --bg:         #FFFFFF;
  --bg-alt:     #F7F9FC;
  --green:      #16A34A;
  --red:        #DC2626;
  --orange:     #D97706;
  --radius:     8px;
  --radius-lg:  14px;
  --shadow:     0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg:  0 4px 24px rgba(27,111,235,.12);
  --font:       -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono:  'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --max-w:      1140px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

strong { font-weight: 600; }

code {
  font-family: var(--font-mono);
  font-size: .875em;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .1em .35em;
}

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .18s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  border: 2px solid var(--blue);
}
.btn-primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.btn-secondary {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}
.btn-secondary:hover {
  background: var(--blue-light);
  text-decoration: none;
  transform: translateY(-1px);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.3px;
  text-decoration: none;
}
.logo-dot { color: var(--blue); }
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.site-nav a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color .15s;
}
.site-nav a:hover { color: var(--blue); text-decoration: none; }
.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .85rem !important;
}
.nav-cta:hover { background: var(--blue-dark); }

/* ── Hero ── */
.hero {
  padding: 80px 0 72px;
  background: linear-gradient(160deg, #F0F6FF 0%, #FFFFFF 60%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--blue-light);
  color: var(--blue);
  font-size: .8125rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: .3px;
}
.badge-dot {
  width: 7px; height: 7px;
  background: var(--blue);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}
.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.5px;
  color: var(--text);
  margin-bottom: 20px;
}
.hero-accent { color: var(--blue); }
.hero-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 32px;
}
.stat-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--blue);
  line-height: 1;
}
.stat-label {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-paper {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Sections ── */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -.3px;
  margin-bottom: 16px;
  color: var(--text);
}
.section-lead {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 720px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ── Why Cards ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.card-icon { font-size: 1.75rem; margin-bottom: 12px; }
.card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.card p { font-size: .9rem; color: var(--text-muted); line-height: 1.6; }

/* ── Findings ── */
.findings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.finding-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
}
.finding-card--major {
  grid-column: 1 / -1;
  border-color: var(--blue);
  border-width: 2px;
}
.finding-number {
  font-size: .75rem;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.finding-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}
.finding-card p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}
.finding-note {
  font-size: .85rem !important;
  color: var(--blue) !important;
  font-style: italic;
  margin-top: 8px !important;
}

/* Metric bars */
.metric-table { margin: 16px 0; display: flex; flex-direction: column; gap: 8px; }
.metric-row {
  display: grid;
  grid-template-columns: 1fr 80px 120px;
  align-items: center;
  gap: 12px;
  font-size: .875rem;
}
.metric-name { color: var(--text-muted); }
.metric-r2 { font-weight: 700; color: var(--text); text-align: right; }
.metric-bar {
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.metric-bar span {
  display: block;
  height: 100%;
  background: var(--blue-mid);
  border-radius: 4px;
  transition: width .6s ease;
}
.metric-row--best .metric-bar span { background: var(--blue); }
.metric-row--best .metric-r2 { color: var(--blue); }

/* Compound viz */
.compound-viz { display: flex; flex-direction: column; gap: 8px; margin: 16px 0; }
.compound-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-alt);
  border-radius: 6px;
  font-size: .875rem;
}
.compound-label { color: var(--text-muted); }
.compound-delta { font-weight: 700; padding: 2px 8px; border-radius: 4px; font-size: .8rem; }
.delta-small  { background: #FEF9C3; color: #854D0E; }
.delta-medium { background: #FEE2E2; color: #991B1B; }
.delta-large  { background: #FCA5A5; color: #7F1D1D; }
.delta-worst  { background: #DC2626; color: #fff; }

/* ── Architecture Cards ── */
.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.arch-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: box-shadow .2s;
}
.arch-card:hover { box-shadow: var(--shadow); }
.arch-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}
.arch-num {
  flex-shrink: 0;
  width: 32px; height: 32px;
  background: var(--blue);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: .9rem;
  margin-top: 2px;
}
.arch-title { font-size: 1rem; font-weight: 700; margin-bottom: 3px; }
.arch-used-by { font-size: .78rem; color: var(--text-muted); }
.arch-card > p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}
.arch-details {
  list-style: none;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.arch-details li {
  font-size: .875rem;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
}
.arch-details li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 700;
}
.arch-tradeoff {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tradeoff-pro, .tradeoff-con {
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
}
.tradeoff-pro { background: #DCFCE7; color: #166534; }
.tradeoff-con { background: #FEE2E2; color: #991B1B; }
.delta-good { color: var(--green); font-weight: 700; }
.delta-bad  { color: var(--red);   font-weight: 700; }

/* ── Model Table ── */
.table-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-bottom: 20px;
  font-size: .8125rem;
  color: var(--text-muted);
}
.legend-item strong { color: var(--text); }
.table-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  font-size: .875rem;
}
.table-controls select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .875rem;
  background: var(--bg);
  cursor: pointer;
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.models-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .8125rem;
  white-space: nowrap;
}
.models-table thead {
  background: var(--bg-alt);
  border-bottom: 2px solid var(--border);
}
.models-table th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 700;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
}
.models-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.models-table tbody tr:last-child td { border-bottom: none; }
.models-table tbody tr:hover { background: var(--blue-light); }
.col-score { text-align: right; }
.col-highlight { background: rgba(27,111,235,.06); font-weight: 700; }
.models-table .col-highlight { color: var(--blue); }
.score-best { color: var(--green); font-weight: 700; }
.score-worst { color: var(--red); font-style: italic; }
.badge-swa { background: #EDE9FE; color: #5B21B6; padding: 1px 7px; border-radius: 4px; font-size: .72rem; font-weight: 600; }
.badge-noswa { background: var(--bg-alt); color: var(--text-muted); padding: 1px 7px; border-radius: 4px; font-size: .72rem; }
.badge-qk { background: #FEF3C7; color: #92400E; padding: 1px 7px; border-radius: 4px; font-size: .72rem; font-weight: 600; }
.badge-hqk { background: #FEE2E2; color: #991B1B; padding: 1px 7px; border-radius: 4px; font-size: .72rem; font-weight: 600; }
.badge-none { color: var(--text-muted); font-size: .72rem; }
.hf-link { color: var(--blue); font-size: .78rem; }
.table-source {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: 12px;
  font-style: italic;
}

/* ── Quick Start ── */
.qs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
@media (max-width: 768px) { .qs-grid { grid-template-columns: 1fr; } }
.qs-block h3 { font-size: 1rem; font-weight: 700; margin-bottom: 14px; }
.code-block {
  background: #0F172A;
  color: #E2E8F0;
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.7;
  overflow-x: auto;
  border: 1px solid #1E293B;
}
.code-block .c { color: #64748B; }
.code-block .k { color: #93C5FD; }
.code-block .s { color: #86EFAC; }
.qs-tips { display: flex; flex-direction: column; gap: 14px; }
.qs-tip {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.tip-icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 1px; }
.qs-tip div { font-size: .875rem; line-height: 1.55; color: var(--text-muted); }
.qs-tip strong { color: var(--text); display: block; margin-bottom: 2px; }
.qs-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── FAQ ── */
.faq-list { display: flex; flex-direction: column; gap: 8px; max-width: 800px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .15s;
}
.faq-item[open] { border-color: var(--blue); }
.faq-item summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: .9375rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--blue);
  font-weight: 400;
  transition: transform .2s;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  padding: 0 20px 16px;
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ── Footer ── */
.site-footer {
  background: var(--text);
  color: #94A3B8;
  padding-top: 56px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid #2D3748;
}
.footer-left .logo { color: #fff; font-size: 1.1rem; display: block; margin-bottom: 10px; }
.footer-left p { font-size: .85rem; line-height: 1.6; max-width: 320px; margin-top: 6px; }
.footer-links { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { color: #fff; font-size: .85rem; font-weight: 700; margin-bottom: 4px; text-transform: uppercase; letter-spacing: .5px; }
.footer-col a { font-size: .85rem; color: #94A3B8; transition: color .15s; }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  padding: 16px 0;
  text-align: center;
}
.footer-bottom p { font-size: .78rem; color: #64748B; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
}
@media (max-width: 640px) {
  .site-nav { gap: 16px; }
  .site-nav a:not(.nav-cta) { display: none; }
  .hero { padding: 56px 0 48px; }
  .hero-stats { gap: 8px; }
  .stat { padding: 0 16px; }
  .stat-divider { display: none; }
  .section { padding: 56px 0; }
  .findings-grid { grid-template-columns: 1fr; }
  .finding-card--major { grid-column: 1; }
  .metric-row { grid-template-columns: 1fr 60px; }
  .metric-bar { display: none; }
}

/* ═══════════════════════════════════════════
   ARCHITECTURE COMPARE TABLE
═══════════════════════════════════════════ */
.arch-compare {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}
.arch-compare-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text);
}
.arch-compare-sub {
  font-size: .9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.compare-table thead {
  background: var(--bg-alt);
  border-bottom: 2px solid var(--border);
}
.compare-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
}
.compare-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.5;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table .col-llama { background: rgba(255,149,0,.04); }
.compare-table .col-olmo  { background: rgba(27,111,235,.04); }
.compare-table .col-qwen  { background: rgba(220,38,38,.04); }
.compare-table th.col-llama { color: #B45309; }
.compare-table th.col-olmo  { color: var(--blue); }
.compare-table th.col-qwen  { color: var(--red); }
.compare-table td.good  { color: var(--green); font-weight: 600; }
.compare-table td.bad   { color: var(--orange); font-weight: 600; }
.compare-table td.mid   { color: var(--text-muted); }
.impact-bad     { color: var(--red);    font-size: .82rem; }
.impact-neutral { color: var(--text-muted); font-size: .82rem; }
.compare-result-row { background: var(--bg-alt); }
.compare-result-row td { padding-top: 14px; padding-bottom: 14px; }
.score-chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 700;
  font-size: .875rem;
}
.score-good  { background: #DCFCE7; color: #166534; }
.score-mid   { background: #FEF3C7; color: #92400E; }
.score-bad   { background: #FEE2E2; color: #991B1B; }
.compare-note {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: 10px;
  font-style: italic;
}

/* ═══════════════════════════════════════════
   VIDEO SECTION
═══════════════════════════════════════════ */
.video-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 860px) { .video-layout { grid-template-columns: 1fr; } }
.video-embed-wrap { width: 100%; }
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}
.video-tag {
  display: inline-block;
  background: var(--blue-light);
  color: var(--blue);
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: .3px;
}
.video-meta h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 10px;
  line-height: 1.3;
}
.video-meta p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}
.video-topics {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.video-topics li {
  font-size: .875rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.video-topics li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: .75rem;
  top: 2px;
}

/* ═══════════════════════════════════════════
   COMMUNITY & CITATION
═══════════════════════════════════════════ */
.community-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 860px) { .community-grid { grid-template-columns: 1fr; } }
.community-col-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}

/* Discussion cards */
.discussion-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.discussion-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
  text-decoration: none;
}
.disc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.disc-source {
  font-size: .75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.disc-reddit  { background: #FFF0E6; color: #FF4500; }
.disc-twitter { background: #E7F3FF; color: #1DA1F2; }
.disc-threads { background: #F3E8FF; color: #7C3AED; }
.disc-arrow { color: var(--text-muted); font-size: .9rem; }
.disc-title {
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
}
.disc-meta {
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.disc-topics { display: flex; gap: 6px; flex-wrap: wrap; }
.disc-tag {
  font-size: .72rem;
  background: var(--bg-alt);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* Citation block */
.citation-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  position: relative;
}
.citation-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.cite-tab {
  padding: 8px 18px;
  font-size: .85rem;
  font-weight: 600;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}
.cite-tab.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
  background: var(--bg);
}
.cite-content { padding: 0; }
.cite-content.hidden { display: none; }
.cite-code {
  display: block;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.7;
  padding: 16px 18px;
  color: var(--text);
  background: #0F172A;
  color: #CBD5E1;
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}
.copy-btn {
  position: absolute;
  top: 44px;
  right: 12px;
  padding: 4px 12px;
  font-size: .75rem;
  font-weight: 600;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background .15s;
}
.copy-btn:hover { background: var(--blue-dark); }

/* Authors */
.authors-block h4 {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.authors-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.author-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-size: .875rem;
}
.author-item:last-child { border-bottom: none; }
.author-name { font-weight: 600; }
.author-aff  { font-size: .78rem; color: var(--text-muted); }


/* ── Architecture Compare Table ── */
.arch-compare {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}
.arch-compare-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.arch-compare-sub {
  font-size: .9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.compare-table thead {
  background: var(--bg-alt);
  border-bottom: 2px solid var(--border);
}
.compare-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
}
.compare-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.5;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table .col-llama { background: rgba(255,200,100,.06); }
.compare-table .col-olmo  { background: rgba(27,111,235,.04); }
.compare-table .col-qwen  { background: rgba(220,38,38,.04); }
.compare-table th.col-llama { color: #92400E; }
.compare-table th.col-olmo  { color: var(--blue); }
.compare-table th.col-qwen  { color: var(--red); }
.compare-result-row td { background: var(--bg-alt) !important; font-size: .875rem; }
.cmp-good  { color: var(--green); font-weight: 600; }
.cmp-bad   { color: var(--orange); font-weight: 600; }
.cmp-worst { color: var(--red); font-weight: 600; }
.cmp-mid   { color: var(--text-muted); }
.cmp-note  { font-size: .78rem; color: var(--text-muted); display: block; margin-top: 2px; }
.impact-bad     { font-size: .82rem; color: var(--red); }
.impact-neutral { font-size: .82rem; color: var(--text-muted); }
.score-chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 700;
  font-size: .875rem;
}
.score-good  { background: #DCFCE7; color: #166534; }
.score-mid   { background: #FEF3C7; color: #92400E; }
.score-bad   { background: #FEE2E2; color: #991B1B; }
.compare-note {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: 12px;
  font-style: italic;
}

/* ── Video Section ── */
.video-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 860px) { .video-layout { grid-template-columns: 1fr; } }
.video-embed-wrap { width: 100%; }
.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
}
.video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}
.video-tag {
  display: inline-block;
  background: var(--blue-light);
  color: var(--blue);
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: .3px;
}
.video-meta h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.35;
}
.video-meta p {
  font-size: .9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}
.video-topics {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.video-topics li {
  font-size: .875rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
}
.video-topics li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-size: .75rem;
  top: 2px;
}

/* ── Community & Citation ── */
.community-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 860px) { .community-grid { grid-template-columns: 1fr; } }
.community-col-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
}
.discussion-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 12px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.discussion-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
  text-decoration: none;
}
.disc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.disc-source {
  font-size: .75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}
.disc-reddit  { background: #FEE2E2; color: #991B1B; }
.disc-twitter { background: #EFF6FF; color: #1D4ED8; }
.disc-threads { background: #F3F4F6; color: #374151; }
.disc-arrow { color: var(--blue); font-size: 1rem; }
.disc-title {
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.45;
}
.disc-meta {
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.disc-topics { display: flex; gap: 6px; flex-wrap: wrap; }
.disc-tag {
  font-size: .72rem;
  background: var(--bg-alt);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* Citation block */
.citation-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
  position: relative;
}
.citation-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.cite-tab {
  padding: 8px 18px;
  font-size: .85rem;
  font-weight: 600;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color .15s;
}
.cite-tab.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
  background: var(--bg);
}
.cite-content { display: block; }
.cite-content.hidden { display: none; }
.cite-code {
  display: block;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.7;
  padding: 16px 18px;
  color: var(--text);
  white-space: pre;
  overflow-x: auto;
  background: #0F172A;
  color: #E2E8F0;
  margin: 0;
}
.copy-btn {
  position: absolute;
  top: 44px;
  right: 12px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 4px 12px;
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.copy-btn:hover { background: var(--blue-dark); }

/* Authors */
.authors-block h4 {
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.authors-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.author-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: .875rem;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}
.author-item:last-child { border-bottom: none; }
.author-name { font-weight: 600; }
.author-aff  { font-size: .78rem; color: var(--text-muted); }