:root {
  --saffron: #E8651A;
  --saffron-light: #FDF0E8;
  --saffron-mid: #F5B38A;
  --navy: #1A2B4A;
  --navy-mid: #2E4A7A;
  --navy-light: #EEF2F8;
  --teal: #0E7C6B;
  --teal-light: #E5F4F1;
  --gold: #C9960A;
  --gold-light: #FBF4E0;
  --rose: #B83A5A;
  --rose-light: #FAE8EE;
  --purple: #6B3FB5;
  --purple-light: #F2ECFB;
  --slate: #5A6478;
  --slate-light: #F4F5F8;
  --white: #FFFFFF;
  --border: rgba(26,43,74,0.12);
  --shadow-sm: 0 1px 3px rgba(26,43,74,0.08), 0 1px 2px rgba(26,43,74,0.06);
  --shadow-md: 0 4px 16px rgba(26,43,74,0.10), 0 2px 6px rgba(26,43,74,0.07);
  --shadow-lg: 0 12px 40px rgba(26,43,74,0.13);
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-mono: 'DM Mono', monospace;
  --nav-height: 60px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: #F3F5F9;
  color: var(--navy);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  padding-top: var(--nav-height);
}

/* ── SKIP LINK ── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 10000;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 12px;
  outline: 2px solid var(--saffron);
  outline-offset: 2px;
}

/* ── ENTERPRISE NAV ── */
.enterprise-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s, background 0.2s;
}
.enterprise-nav.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255,255,255,0.98);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--navy);
  flex-shrink: 0;
}
.nav-brand-icon {
  font-size: 18px;
  color: var(--saffron);
}
.nav-brand-text {
  font-family: 'DM Serif Display', serif;
  font-size: 17px;
  font-weight: 400;
}
.nav-brand-text em { font-style: italic; color: var(--saffron); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--navy);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle.open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle.open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* Guides dropdown */
.nav-guides-wrap {
  position: relative;
}
.nav-guides-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}
.nav-guides-btn:hover,
.nav-guides-wrap.open .nav-guides-btn {
  border-color: var(--navy-mid);
  background: var(--navy-light);
  color: var(--navy-mid);
}
.nav-guides-chevron {
  transition: transform 0.2s;
  opacity: 0.6;
}
.nav-guides-wrap.open .nav-guides-chevron {
  transform: rotate(180deg);
}
.nav-guides-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 300px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 1100;
}
.nav-guides-wrap.open .nav-guides-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-guides-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--navy);
  transition: background 0.15s;
}
.nav-guides-item:hover {
  background: var(--navy-light);
}
.nav-guides-item-icon {
  font-size: 1.15rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}
.nav-guides-item strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 2px;
}
.nav-guides-item small {
  display: block;
  font-size: 11px;
  color: var(--slate);
  line-height: 1.4;
}

/* Landing-only sections */
.resource-hub.is-hidden {
  display: none;
}

/* ── RESOURCE HUB ── */
.resource-hub {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 28px 24px 32px;
}
.resource-hub-header {
  max-width: 1200px;
  margin: 0 auto 20px;
  text-align: center;
}
.resource-hub-title {
  font-family: 'DM Serif Display', serif;
  font-size: 22px;
  font-weight: 400;
  color: var(--navy);
  margin-bottom: 6px;
}
.resource-hub-title em { font-style: italic; color: var(--saffron); }
.resource-hub-sub {
  font-size: 13px;
  color: var(--slate);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.55;
}
.resource-hub-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.resource-card {
  display: flex;
  gap: 16px;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  box-shadow: var(--shadow-sm);
}
.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.resource-card-infra {
  background: linear-gradient(135deg, #fff 0%, var(--navy-light) 100%);
  border-top: 3px solid var(--navy-mid);
}
.resource-card-infra:hover { border-color: var(--navy-mid); }
.resource-card-validate {
  background: linear-gradient(135deg, #fff 0%, var(--teal-light) 100%);
  border-top: 3px solid var(--teal);
}
.resource-card-validate:hover { border-color: var(--teal); }
.resource-card-learn {
  background: linear-gradient(135deg, #fff 0%, var(--purple-light) 100%);
  border-top: 3px solid var(--purple);
}
.resource-card-learn:hover { border-color: var(--purple); }
.resource-card-learn .resource-card-cta { color: var(--purple); }
.resource-card-rag {
  background: linear-gradient(135deg, #fff 0%, var(--saffron-light) 100%);
  border-top: 3px solid var(--saffron);
}
.resource-card-rag:hover { border-color: var(--saffron); }
.resource-card-rag .resource-card-cta { color: var(--saffron); }
.resource-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  background: rgba(255,255,255,0.8);
  border: 1px solid var(--border);
}
.resource-card-tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 4px;
}
.resource-card-title {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--navy);
  margin-bottom: 6px;
}
.resource-card-desc {
  font-size: 12.5px;
  color: var(--slate);
  line-height: 1.55;
  margin-bottom: 10px;
}
.resource-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy-mid);
}
.resource-card-validate .resource-card-cta { color: var(--teal); }
.resource-card:hover .resource-card-cta svg { transform: translate(2px, -2px); }
.resource-card-cta svg { transition: transform 0.2s; }

/* ── PAGE HEADER ── */
.page-header {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: 0;
}
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg, transparent, transparent 30px,
    rgba(255,255,255,0.015) 30px, rgba(255,255,255,0.015) 60px
  );
}
.page-header::after {
  content: '';
  position: absolute;
  right: -80px; top: -80px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,101,26,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.header-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 40px 40px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,101,26,0.15);
  border: 1px solid rgba(232,101,26,0.3);
  color: var(--saffron-mid);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.header-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--saffron-mid);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}
.header-title {
  font-family: 'DM Serif Display', serif;
  font-size: 38px;
  font-weight: 400;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.5px;
}
.header-title em { font-style: italic; color: var(--saffron-mid); }
.header-sub {
  margin-top: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  font-weight: 400;
  max-width: 520px;
  line-height: 1.6;
}
.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.header-stat-row { display: flex; gap: 8px; }
.hstat {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 12px 18px;
  text-align: center;
  min-width: 80px;
}
.hstat-num {
  font-family: 'DM Serif Display', serif;
  font-size: 28px;
  color: #fff;
  line-height: 1;
}
.hstat-label {
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 4px;
}

/* ── TICKER STRIP ── */
.insight-strip {
  background: linear-gradient(90deg, rgba(26,43,74,0.06), rgba(232,101,26,0.06));
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  overflow: hidden;
}
.insight-ticker {
  display: flex;
  gap: 5rem;
  animation: ticker 24s linear infinite;
  white-space: nowrap;
}
.insight-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--slate);
  flex-shrink: 0;
}
.insight-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--saffron);
  flex-shrink: 0;
  animation: blink 2s ease-in-out infinite;
}
@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ── MAIN LAYOUT ── */
.main-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 40px 60px;
}

/* ── TABS ── */
.tab-row {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 6px;
  box-shadow: var(--shadow-sm);
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(26,43,74,0.2) transparent;
}
.tab-row::-webkit-scrollbar { height: 4px; }
.tab-row::-webkit-scrollbar-thumb {
  background: rgba(26,43,74,0.18);
  border-radius: 4px;
}
.tab-btn {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 9px 20px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  background: transparent;
  color: var(--slate);
  transition: all 0.18s;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.tab-btn:hover { background: var(--navy-light); color: var(--navy); }
.tab-btn.active {
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.tab-btn .tab-icon { font-size: 15px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── CONTROLS BAR ── */
.controls-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.search-wrap {
  position: relative;
  flex: 1;
  min-width: 220px;
}
.search-icon {
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--slate);
  pointer-events: none;
}
.search-input {
  width: 100%;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  padding: 9px 12px 9px 36px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--slate-light);
  color: var(--navy);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  outline: none;
}
.search-input:focus {
  border-color: var(--saffron);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(232,101,26,0.1);
}
.search-input::placeholder { color: #a0a8b8; }

.filter-select {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  padding: 9px 32px 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--slate-light) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235A6478' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 10px center;
  -webkit-appearance: none;
  color: var(--navy);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
  min-width: 170px;
}
.filter-select:focus { border-color: var(--saffron); }

.btn {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.18s;
  white-space: nowrap;
}
.btn-outline {
  background: var(--white);
  border-color: var(--border);
  color: var(--slate);
}
.btn-outline:hover { border-color: var(--navy-mid); color: var(--navy); background: var(--navy-light); }
.btn-primary { background: var(--saffron); border-color: var(--saffron); color: #fff; }
.btn-primary:hover { background: #d0561a; border-color: #d0561a; }
.controls-divider { width: 1px; height: 32px; background: var(--border); margin: 0 4px; }

/* ── PILL FILTERS ── */
.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.pill {
  appearance: none;
  -webkit-appearance: none;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 20px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.17s;
  white-space: nowrap;
  line-height: 1.3;
}
.pill-all { background: var(--navy); color: #fff; border-color: var(--navy); }
.pill-all.inactive { background: transparent; color: var(--slate); border-color: var(--border); }
.pill-all.inactive:hover { border-color: var(--navy); color: var(--navy); }
.pill-cat { border-color: var(--border); background: var(--white); color: var(--slate); }
.pill-cat:hover { border-color: currentColor; }
.pill-cat.active-pill { color: #fff; }
.pill[data-cat="Frontier"]    { --pc: #2E4A7A; }
.pill[data-cat="Open-Source"] { --pc: #0E7C6B; }
.pill[data-cat="Perplexity"]  { --pc: #6B3FB5; }
.pill[data-cat="Nvidia"]      { --pc: #76B900; }
.pill-cat:hover { color: var(--pc); border-color: var(--pc); }
.pill-cat.active-pill { background: var(--pc); border-color: var(--pc); color: #fff; }

/* ── RESULTS META ── */
.results-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.results-count { font-size: 13px; color: var(--slate); }
.results-count strong { color: var(--navy); font-weight: 600; }

/* ── TABLE ── */
.table-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead {
  background: var(--navy);
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 2;
}
thead th {
  padding: 13px 16px;
  text-align: left;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  white-space: nowrap;
}
thead th:first-child { color: rgba(255,255,255,0.35); width: 48px; }

/* Benchmark table specific cols */
.bench-table col.col-rank  { width: 52px; }
.bench-table col.col-model { width: 22%; }
.bench-table col.col-type  { width: 110px; }
.bench-table col.col-score { width: 13%; }
.bench-table col.col-ctx   { width: 90px; }
.bench-table col.col-cost  { width: 130px; }
.bench-table { min-width: 980px; }

tbody tr {
  border-bottom: 1px solid rgba(26,43,74,0.06);
  transition: background 0.15s;
  animation: rowIn 0.3s ease both;
}
@keyframes rowIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--saffron-light); }

td { padding: 13px 16px; vertical-align: middle; }

.row-num {
  font-family: 'DM Serif Display', serif;
  font-size: 16px;
  color: #c8cfdd;
  transition: color 0.15s;
  line-height: 1.3;
}
tbody tr:hover .row-num { color: var(--saffron); }

.model-name { font-size: 13px; color: var(--navy); font-weight: 600; letter-spacing: -0.01em; }
.model-org {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--slate);
  margin-top: 2px;
}

/* ── TYPE BADGES ── */
.type-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: 0.02em;
  font-family: 'DM Sans', sans-serif;
}
.type-badge::before {
  content: '';
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.type-frontier   { background: #EEF2F8; color: #2E4A7A; }
.type-open       { background: #E5F4F1; color: #0E7C6B; }
.type-perplexity { background: #F2ECFB; color: #6B3FB5; }
.type-nvidia     { background: #EDF7E5; color: #3D7C0F; }
.type-hybrid     { background: #FBF4E0; color: #8A5E0A; }

/* ── SCORE BARS ── */
.score-bar-wrap { display: flex; align-items: center; gap: 8px; }
.score-bar {
  width: 72px; height: 5px;
  background: rgba(26,43,74,0.08);
  border-radius: 3px;
  overflow: hidden;
  flex-shrink: 0;
}
.score-bar-fill { height: 100%; border-radius: 3px; transition: width 0.8s ease; }
.fill-frontier   { background: linear-gradient(90deg, #2E4A7A, #4f9fff); }
.fill-open       { background: linear-gradient(90deg, #0E7C6B, #2ddd88); }
.fill-perplexity { background: linear-gradient(90deg, #6B3FB5, #a78bfa); }
.fill-nvidia     { background: linear-gradient(90deg, #3D7C0F, #76B900); }
.score-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--navy);
}
.score-na { color:#a0a8b8; font-family:var(--font-mono); font-size:12px; }
.cost-cell { font-family: var(--font-mono); font-size: 12px; color: var(--gold); }
.ctx-cell  { font-family: var(--font-mono); font-size: 12px; color: var(--slate); }
.table-footnote {
  font-size: 12px;
  color: var(--slate);
  margin-top: 12px;
  font-family: var(--font-mono);
  line-height: 1.5;
}

/* ── MODEL CATALOG ── */
.model-catalog { display: flex; flex-direction: column; gap: 28px; margin-bottom: 28px; }
.model-section-title {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--navy);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.model-section-count {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  background: var(--navy-light);
  color: var(--slate);
  padding: 2px 8px;
  border-radius: 10px;
}
.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}
.model-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
  border-top: 3px solid var(--navy-mid);
}
.model-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.model-card-opensource { border-top-color: var(--teal); }
.model-card-perplexity { border-top-color: var(--purple); }
.model-card-nvidia     { border-top-color: #76B900; }
.model-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}
.model-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.3;
}
.model-card-org {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--slate);
  margin-top: 2px;
}
.model-card-scores {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--navy-mid);
  background: var(--slate-light);
  padding: 6px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}
.model-card-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
  margin-bottom: 10px;
}
.model-detail-row { display: contents; }
.model-detail-row dt {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--slate);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.model-detail-row dd {
  font-size: 11.5px;
  color: var(--navy);
  font-weight: 500;
}
.model-card-strengths {
  font-size: 11.5px;
  color: var(--slate);
  line-height: 1.5;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}
.model-card-strengths strong { color: var(--navy); font-weight: 600; }

/* ── ENTERPRISE CTA ROW ── */
.enterprise-cta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 8px;
}
.enterprise-cta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 22px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}
.enterprise-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.enterprise-cta-infra {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.enterprise-cta-validate {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}
.enterprise-cta-label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.75;
}
.enterprise-cta-title {
  font-family: 'DM Serif Display', serif;
  font-size: 17px;
}
.enterprise-cta-sub {
  font-size: 11.5px;
  opacity: 0.8;
  line-height: 1.4;
}

/* ── USE CASE ADVISOR ── */
.advisor-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  align-items: start;
}
.advisor-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}
.advisor-form-title {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 18px;
}
.advisor-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 6px;
  margin-top: 14px;
}
.advisor-label:first-of-type { margin-top: 0; }
.advisor-label .required { color: var(--rose); }
.advisor-select { width: 100%; min-width: 0; }
.advisor-terms {
  margin: 18px 0;
  padding: 14px;
  background: var(--gold-light);
  border: 1px solid rgba(201,150,10,0.25);
  border-radius: var(--radius);
}
.terms-checkbox-label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 11.5px;
  color: var(--navy);
  line-height: 1.55;
  cursor: pointer;
}
.terms-checkbox {
  margin-top: 3px;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--saffron);
}
.advisor-submit {
  width: 100%;
  justify-content: center;
  padding: 12px 20px;
  margin-top: 4px;
}
.advisor-submit:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.advisor-results-wrap { display: flex; flex-direction: column; gap: 16px; }
.advisor-disclaimer {
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  background: var(--rose-light);
  border: 1px solid rgba(184,58,90,0.2);
  border-radius: var(--radius-lg);
  font-size: 12px;
  color: var(--navy);
  line-height: 1.6;
}
.advisor-disclaimer strong { display: block; margin-bottom: 6px; color: var(--rose); font-size: 13px; }
.advisor-disclaimer p { margin: 0; }
.disclaimer-icon { font-size: 1.3rem; flex-shrink: 0; }
.advisor-placeholder {
  background: var(--white);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--slate);
}
.advisor-placeholder-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.5; }
.advisor-placeholder p { font-size: 14px; max-width: 360px; margin: 0 auto; line-height: 1.5; }
.advisor-results {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.advisor-results-header { margin-bottom: 18px; }
.advisor-results-header h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--navy);
  margin-bottom: 6px;
}
.advisor-results-sub { font-size: 13px; color: var(--slate); line-height: 1.5; }
.advisor-results-list { display: flex; flex-direction: column; gap: 12px; }
.advisor-result-card {
  display: flex;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--slate-light);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.advisor-result-card:hover { border-color: rgba(46,74,122,0.25); box-shadow: var(--shadow-sm); }
.advisor-rank {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.advisor-result-card:first-child .advisor-rank { background: var(--gold); color: var(--navy); }
.advisor-result-body { flex: 1; min-width: 0; }
.advisor-result-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}
.advisor-result-name { font-size: 14px; font-weight: 600; color: var(--navy); }
.advisor-result-reason { font-size: 12px; color: var(--slate); line-height: 1.5; margin-bottom: 8px; }
.advisor-result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--navy-mid);
  margin-bottom: 8px;
}
.advisor-fit-bar {
  height: 4px;
  background: rgba(26,43,74,0.08);
  border-radius: 2px;
  overflow: hidden;
}
.advisor-fit-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--navy-mid));
  border-radius: 2px;
  transition: width 0.6s ease;
}
.advisor-results-footnote {
  font-size: 11px;
  color: var(--slate);
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}

/* ── RANK BADGE ── */
.rank-badge {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
}
.rank-1 { background: rgba(201,150,10,0.15); color: var(--gold); border: 1px solid rgba(201,150,10,0.35); }
.rank-2 { background: rgba(90,100,120,0.1); color: #8899b0; border: 1px solid rgba(90,100,120,0.2); }
.rank-3 { background: rgba(176,108,64,0.12); color: #cd7f32; border: 1px solid rgba(176,108,64,0.25); }
.rank-n { background: rgba(26,43,74,0.05); color: var(--slate); border: 1px solid var(--border); }

/* ── ELO SECTION ── */
.section-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.section-card-title {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 4px;
}
.section-card-sub {
  font-size: 13px;
  color: var(--slate);
  margin-bottom: 24px;
  line-height: 1.5;
}
.elo-bars { display: flex; flex-direction: column; gap: 10px; }
.elo-row {
  display: grid;
  grid-template-columns: 200px 1fr 60px;
  gap: 12px;
  align-items: center;
}
.elo-model-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
}
.elo-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.elo-bar-track {
  height: 8px;
  background: rgba(26,43,74,0.07);
  border-radius: 4px;
  overflow: hidden;
}
.elo-bar-fill { height: 100%; border-radius: 4px; animation: barGrow 1.2s ease both; }
@keyframes barGrow { from { width: 0 !important; } }
.elo-score {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
  font-weight: 500;
}

/* ── TREND CHART ── */
.chart-canvas-wrap { position: relative; height: 300px; }
canvas { width: 100%; height: 100%; }
.chart-legend {
  display: flex;
  gap: 1.5rem;
  margin-top: 16px;
  flex-wrap: wrap;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* ── COMPARISON CARDS ── */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.comp-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.comp-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.comp-card.frontier-card { border-top: 3px solid #2E4A7A; }
.comp-card.open-card     { border-top: 3px solid #0E7C6B; }
.comp-card.perp-card     { border-top: 3px solid #6B3FB5; }
.comp-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.comp-icon {
  width: 38px; height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.icon-frontier   { background: #EEF2F8; }
.icon-open       { background: #E5F4F1; }
.icon-perplexity { background: #F2ECFB; }
.comp-title { font-size: 14px; font-weight: 600; color: var(--navy); }
.comp-sub { font-family: var(--font-mono); font-size: 10px; color: var(--slate); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }
.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(26,43,74,0.05);
  font-size: 12px;
}
.metric-row:last-child { border-bottom: none; }
.metric-label { font-family: var(--font-mono); font-size: 11px; color: var(--slate); }
.metric-value { font-family: var(--font-mono); font-size: 11.5px; font-weight: 500; }
.val-frontier   { color: #2E4A7A; }
.val-open       { color: #0E7C6B; }
.val-perplexity { color: #6B3FB5; }
.val-neutral    { color: var(--navy); }
.val-amber      { color: var(--gold); }
.val-red        { color: var(--rose); }

/* ── STRATEGY GRID ── */
.strategy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
@media (max-width: 1100px) {
  .strategy-grid { grid-template-columns: repeat(2, 1fr); }
}
.strat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.strat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.strat-card.c1::before { background: linear-gradient(90deg, #2E4A7A, #4f9fff); }
.strat-card.c2::before { background: linear-gradient(90deg, #0E7C6B, #2ddd88); }
.strat-card.c3::before { background: linear-gradient(90deg, #6B3FB5, #a78bfa); }
.strat-card.c4::before { background: linear-gradient(90deg, #C9960A, #f5a623); }
.strat-card.c5::before { background: linear-gradient(90deg, #B83A5A, #ff6b6b); }
.strat-card.c6::before { background: linear-gradient(90deg, #0E7C6B, #4f9fff); }
.strat-card.c7::before { background: linear-gradient(90deg, #2E4A7A, #6B3FB5); }
.strat-card.c8::before { background: linear-gradient(90deg, #0E7C6B, #2ddd88); }
.strat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.inline-link {
  color: var(--navy-mid);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.inline-link:hover { color: var(--saffron); }
.strat-emoji { font-size: 1.5rem; margin-bottom: 10px; display: block; }
.strat-title { font-size: 13.5px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.strat-desc { font-family: var(--font-mono); font-size: 11px; color: var(--slate); line-height: 1.6; }
.strat-tag {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
.tag-frontier   { background: #EEF2F8; color: #2E4A7A; border: 1px solid rgba(46,74,122,0.2); }
.tag-open       { background: #E5F4F1; color: #0E7C6B; border: 1px solid rgba(14,124,107,0.2); }
.tag-hybrid     { background: #F2ECFB; color: #6B3FB5; border: 1px solid rgba(107,63,181,0.2); }
.tag-caution    { background: var(--gold-light); color: var(--gold); border: 1px solid rgba(201,150,10,0.2); }

/* ── FINDINGS ── */
.findings-list { display: flex; flex-direction: column; gap: 12px; }
.finding-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s;
}
.finding-item:hover { border-color: rgba(46,74,122,0.25); }
.finding-num-small {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--saffron);
  flex-shrink: 0;
  padding-top: 2px;
  font-weight: 600;
}
.finding-text { font-size: 13px; color: var(--navy); line-height: 1.6; }
.finding-text strong { color: var(--navy-mid); font-weight: 600; }

/* ── SECTION HEADER ── */
.section-heading {
  margin-bottom: 20px;
}
.section-label-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--saffron);
  margin-bottom: 6px;
}
.section-heading h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--navy);
  line-height: 1.2;
}
.section-heading h2 em { font-style: italic; color: var(--saffron); }
.section-heading p {
  font-size: 13px;
  color: var(--slate);
  margin-top: 6px;
  max-width: 600px;
  line-height: 1.6;
}
.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 36px 0 32px;
}

/* ── ABBREVIATIONS TAB ── */
.abbrev-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.abbrev-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.abbrev-card-header {
  background: var(--navy);
  color: rgba(255,255,255,0.85);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 16px;
}
.abbrev-table { width: 100%; border-collapse: collapse; }
.abbrev-table tr { border-bottom: 1px solid rgba(26,43,74,0.06); }
.abbrev-table tr:last-child { border-bottom: none; }
.abbrev-table tr:hover { background: var(--saffron-light); }
.abbrev-table td { padding: 10px 16px; font-size: 13px; vertical-align: top; }
.abbrev-term {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--navy-mid);
  width: 110px;
  white-space: nowrap;
}
.abbrev-def { color: var(--navy); line-height: 1.5; }
.abbrev-def em { font-size: 11px; color: var(--slate); font-style: normal; display: block; margin-top: 2px; }
.abbrev-tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  white-space: nowrap;
  margin-top: 4px;
  letter-spacing: 0.04em;
}
.at-benchmark { background: #EEF2F8; color: #2E4A7A; }
.at-model     { background: #E5F4F1; color: #0E7C6B; }
.at-arch      { background: #F2ECFB; color: #6B3FB5; }
.at-metric    { background: var(--gold-light); color: var(--gold); }
.at-training  { background: var(--rose-light); color: var(--rose); }
.at-infra     { background: #F4F5F8; color: #5A6478; }

/* ── EMPTY STATE ── */
.empty-state { padding: 64px 24px; text-align: center; color: var(--slate); }
.empty-state svg { width: 40px; height: 40px; margin-bottom: 12px; opacity: 0.3; }
.empty-state p { font-size: 14px; margin-top: 6px; }

/* ── FOOTER ── */
.page-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 40px 40px;
  border-top: 1px solid var(--border);
  margin-top: 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 24px;
}
.footer-brand {
  font-family: 'DM Serif Display', serif;
  font-size: 18px;
  color: var(--navy);
  margin-bottom: 8px;
}
.footer-text { font-size: 12.5px; color: var(--slate); line-height: 1.6; max-width: 420px; }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 10px;
}
.footer-link {
  display: block;
  font-size: 13px;
  color: var(--navy-mid);
  text-decoration: none;
  padding: 4px 0;
  transition: color 0.15s;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'DM Sans', sans-serif;
}
.footer-link:hover { color: var(--saffron); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.footer-copyright { font-size: 12px; color: #a0a8b8; }
.footer-copyright a { color: var(--navy-mid); text-decoration: none; }
.footer-copyright a:hover { color: var(--saffron); }
.footer-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--navy-light);
  color: var(--slate);
  letter-spacing: 0.05em;
}

/* ── VISITOR COUNTER ── */
.visitor-counter {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.visitor-counter-live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--teal);
}
.visitor-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  animation: visitorPulse 2s ease-in-out infinite;
}
@keyframes visitorPulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(14,124,107,0.4); }
  50% { opacity: 0.7; transform: scale(0.92); box-shadow: 0 0 0 4px rgba(14,124,107,0); }
}
.visitor-counter-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--slate);
}
.visitor-counter-num {
  font-family: 'DM Serif Display', serif;
  font-size: 20px;
  color: var(--navy);
  line-height: 1;
  min-width: 2.5ch;
  text-align: right;
  transition: color 0.3s;
}
.visitor-counter-num.updated {
  color: var(--saffron);
}
.visitor-counter.is-loading .visitor-counter-num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--slate);
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 28px; right: 28px;
  background: var(--navy);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 12px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.25s;
  pointer-events: none;
  z-index: 9999;
}
.toast.show { opacity: 1; transform: translateY(0); }

/* visible keyboard focus across browsers */
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--saffron);
  outline-offset: 2px;
}

@supports not selector(:focus-visible) {
  button:focus,
  input:focus,
  select:focus,
  [tabindex]:focus {
    outline: 2px solid var(--saffron);
    outline-offset: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .header-inner { padding: 40px 28px 34px; }
  .main-wrap { padding: 24px 24px 48px; }
  .page-footer { padding: 28px 24px 32px; }
  .resource-hub { padding: 20px 24px 24px; }
  .comparison-grid,
  .strategy-grid { grid-template-columns: 1fr 1fr; }
  .abbrev-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .header-right {
    width: 100%;
    align-items: flex-start;
  }
  .header-stat-row {
    flex-wrap: wrap;
    width: 100%;
  }
  .hstat {
    flex: 1 1 130px;
    min-width: 0;
  }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 16px;
    display: none;
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }
  .nav-menu.open { display: flex; }
  .nav-guides-wrap { width: 100%; }
  .nav-guides-btn { width: 100%; justify-content: center; }
  .nav-guides-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 8px 0 0;
    min-width: 0;
    display: none;
  }
  .nav-guides-wrap.open .nav-guides-menu { display: block; }
  .nav-guides-item { padding: 12px 10px; }
}
@media (max-width: 768px) {
  .resource-hub-inner { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .advisor-layout { grid-template-columns: 1fr; }
  .advisor-form-card { position: static; }
  .footer-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 32px 20px 28px; }
  .main-wrap { padding: 20px 16px 40px; }
  .header-title { font-size: 26px; }
  .header-sub { max-width: 100%; }
  .header-right {
    display: flex;
    width: 100%;
    align-items: stretch;
  }
  .header-stat-row {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .hstat {
    width: 100%;
    padding: 10px 12px;
  }
  .hstat-num { font-size: 22px; }
  .page-footer { padding: 0 16px 32px; }
  .controls-card {
    padding: 14px;
    gap: 10px;
  }
  .search-wrap,
  .filter-select,
  .btn,
  .controls-divider {
    width: 100%;
    min-width: 0;
  }
  .tab-row {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
  }
  .tab-btn {
    flex: 0 0 auto;
    padding: 8px 14px;
    font-size: 12px;
  }
  .comparison-grid { grid-template-columns: 1fr; }
  .strategy-grid { grid-template-columns: 1fr 1fr; }
  .abbrev-grid { grid-template-columns: 1fr; }
  .elo-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .elo-model-label { justify-content: flex-start; }
  .elo-score { font-size: 11px; }
  .section-card { padding: 18px 16px; }
  .chart-canvas-wrap { height: 240px; }
  .finding-item {
    flex-direction: column;
    gap: 8px;
  }
  .abbrev-table td {
    padding: 9px 12px;
    font-size: 12px;
  }
  .abbrev-term {
    width: 92px;
    font-size: 11px;
  }
  .resource-card { flex-direction: column; }
  .resource-card-icon { width: 40px; height: 40px; }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .visitor-counter { width: 100%; justify-content: center; }
}
@media (max-width: 500px) {
  .header-title { font-size: 24px; }
  .header-badge { font-size: 10px; }
  .section-heading h2 { font-size: 21px; }
  .section-heading p { font-size: 12px; }
  .strategy-grid { grid-template-columns: 1fr; }
  .metric-row {
    align-items: flex-start;
    gap: 8px;
  }
  .metric-label,
  .metric-value {
    font-size: 10.5px;
    line-height: 1.4;
  }
  .pill {
    font-size: 11px;
    padding: 5px 10px;
  }
}