/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --amber:   #EF9F27;
  --amber-lt: #FAEEDA;
  --amber-dk: #412402;
  --blue:    #378ADD;
  --blue-lt: #E6F1FB;
  --blue-dk: #042C53;
  --teal:    #1D9E75;
  --teal-lt: #E1F5EE;
  --teal-dk: #04342C;
  --purple:  #534AB7;
  --purple-lt: #EEEDFE;
  --purple-dk: #26215C;
  --gray:    #5F5E5A;
  --gray-lt: #F1EFE8;

  --bg:      #0a0a0a;
  --bg2:     #111111;
  --bg3:     #181818;
  --surface: #1e1e1e;
  --border:  rgba(255,255,255,0.08);
  --border2: rgba(255,255,255,0.14);
  --text:    #e8e6e0;
  --muted:   #888780;
  --hint:    #555450;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--amber);
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.logo span { color: var(--amber); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color .2s;
}
.nav-links a:hover { color: var(--text); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 100px 2rem 4rem;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(239,159,39,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(239,159,39,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.5rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5vw, 4.4rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-style: italic;
  font-weight: 300;
  color: var(--amber);
}
.hero-sub {
  font-size: 17px;
  color: var(--muted);
  max-width: 440px;
  margin-bottom: 2rem;
  line-height: 1.65;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 2.5rem;
}
.badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}
.badge-amber { background: rgba(239,159,39,0.15); color: var(--amber); border: 1px solid rgba(239,159,39,0.3); }
.badge-blue  { background: rgba(55,138,221,0.12); color: #85B7EB; border: 1px solid rgba(55,138,221,0.25); }
.badge-purple{ background: rgba(83,74,183,0.15); color: #AFA9EC; border: 1px solid rgba(83,74,183,0.3); }

.cta-btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--amber);
  color: #1a0e00;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  transition: opacity .2s, transform .2s;
}
.cta-btn:hover { opacity: 0.88; transform: translateY(-1px); }

/* Hero visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.model-orbit {
  position: relative;
  width: 360px;
  height: 360px;
}
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border2);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: spin 20s linear infinite;
}
.ring-1 { width: 180px; height: 180px; animation-duration: 14s; border-color: rgba(239,159,39,0.2); }
.ring-2 { width: 270px; height: 270px; animation-duration: 22s; animation-direction: reverse; border-color: rgba(55,138,221,0.15); }
.ring-3 { width: 350px; height: 350px; animation-duration: 32s; border-color: rgba(83,74,183,0.12); }

.orbit-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: 0.06em;
}
.orbit-node {
  position: absolute;
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.node-a { background: rgba(239,159,39,0.18); color: var(--amber); border: 1px solid rgba(239,159,39,0.35); top: 10px; left: 50%; transform: translateX(-50%); }
.node-b { background: rgba(55,138,221,0.15); color: #85B7EB; border: 1px solid rgba(55,138,221,0.3); bottom: 25px; left: 18px; }
.node-c { background: rgba(83,74,183,0.18); color: #AFA9EC; border: 1px solid rgba(83,74,183,0.35); bottom: 25px; right: 18px; }

@keyframes spin { to { transform: translate(-50%,-50%) rotate(360deg); } }

/* ===== STATS BAR ===== */
.stats-bar {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ===== SECTIONS ===== */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.15;
}
.section-sub {
  font-size: 16px;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 3rem;
}

/* ===== PIPELINE SECTION ===== */
.pipeline-section { background: var(--bg); }

.pipeline-tabs {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 2rem;
  overflow-x: auto;
  padding-bottom: 4px;
}
.tab-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 16px;
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all .2s;
  min-width: 90px;
  position: relative;
}
.tab-btn:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.tab-btn:last-child  { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.tab-btn + .tab-btn  { border-left: none; }
.tab-btn:hover { background: var(--surface); }
.tab-btn.active { background: var(--surface); border-color: var(--border2); }

.tab-connector { display: none; } /* absorbed into tab-btn borders */

.tab-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--muted);
  transition: color .2s;
}
.tab-label {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hint);
  transition: color .2s;
}
.tab-btn.active .tab-num,
.tab-btn.active .tab-label { color: var(--amber); }

/* Stage panels */
.stage-panel { display: none; animation: fadeIn .3s ease; }
.stage-panel.active { display: block; }
@keyframes fadeIn { from { opacity:0; transform: translateY(6px); } to { opacity:1; transform: translateY(0); } }

.stage-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.stage-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.icon-amber  { background: rgba(239,159,39,0.15); color: var(--amber); border: 1px solid rgba(239,159,39,0.25); }
.icon-blue   { background: rgba(55,138,221,0.12); color: #85B7EB; border: 1px solid rgba(55,138,221,0.2); }
.icon-teal   { background: rgba(29,158,117,0.12); color: var(--teal); border: 1px solid rgba(29,158,117,0.2); }
.icon-purple { background: rgba(83,74,183,0.15); color: #AFA9EC; border: 1px solid rgba(83,74,183,0.25); }
.icon-gray   { background: var(--bg3); color: var(--muted); border: 1px solid var(--border); }

.stage-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.stage-model { font-size: 13px; color: var(--muted); }
.stage-model strong { color: var(--text); font-weight: 500; }

/* Flow diagram */
.flow-diagram {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.flow-diagram-stack {
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}
.flow-branch {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.flow-plus {
  font-size: 18px;
  color: var(--muted);
  padding: 0 8px;
}
.flow-merge {
  margin-top: 6px;
  padding: 8px 12px;
  background: rgba(29,158,117,0.12);
  border: 1px solid rgba(29,158,117,0.25);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--teal);
}
.flow-merge strong { font-weight: 500; }
.flow-node {
  padding: 7px 12px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
}
.flow-highlight-amber { background: rgba(239,159,39,0.12); border-color: rgba(239,159,39,0.3); color: var(--amber); }
.flow-highlight-blue  { background: rgba(55,138,221,0.10); border-color: rgba(55,138,221,0.25); color: #85B7EB; }
.flow-highlight-teal  { background: rgba(29,158,117,0.10); border-color: rgba(29,158,117,0.25); color: var(--teal); }
.flow-highlight-purple{ background: rgba(83,74,183,0.12); border-color: rgba(83,74,183,0.3); color: #AFA9EC; }
.flow-arrow { color: var(--hint); font-size: 14px; }

/* Detail grid */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 1rem;
}
.detail-card {
  padding: 1rem 1.25rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.detail-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.detail-card p { font-size: 13px; color: var(--text); line-height: 1.6; }

.stage-note {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  line-height: 1.55;
  margin-top: 8px;
}
.note-amber  { background: rgba(239,159,39,0.08); color: #EF9F27; border: 1px solid rgba(239,159,39,0.18); }
.note-blue   { background: rgba(55,138,221,0.08); color: #85B7EB; border: 1px solid rgba(55,138,221,0.18); }
.note-purple { background: rgba(83,74,183,0.10); color: #AFA9EC; border: 1px solid rgba(83,74,183,0.22); }

/* Flow summary */
.flow-summary {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.flow-summary-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.flow-summary-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.fsb {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity .15s;
}
.fsb:hover { opacity: 0.75; }
.fsb.amber  { background: rgba(239,159,39,0.15); color: var(--amber); border: 1px solid rgba(239,159,39,0.25); }
.fsb.blue   { background: rgba(55,138,221,0.12); color: #85B7EB; border: 1px solid rgba(55,138,221,0.22); }
.fsb.teal   { background: rgba(29,158,117,0.12); color: var(--teal); border: 1px solid rgba(29,158,117,0.22); }
.fsb.purple { background: rgba(83,74,183,0.13); color: #AFA9EC; border: 1px solid rgba(83,74,183,0.25); }
.fsb.gray   { background: var(--surface); color: var(--muted); border: 1px solid var(--border); }
.fs-arrow { color: var(--hint); font-size: 14px; }

/* ===== MODELS SECTION ===== */
.models-section { background: var(--bg2); }
.model-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.model-card {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg);
  position: relative;
}
.model-card.featured { border-width: 1px; border-color: rgba(83,74,183,0.4); background: rgba(83,74,183,0.04); }
.model-rank {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.model-rank-featured {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(83,74,183,0.2);
  color: #AFA9EC;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.model-card-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
}
.card-amber .model-card-name { color: var(--amber); }
.card-blue  .model-card-name { color: #85B7EB; }
.card-purple .model-card-name { color: #AFA9EC; }

.model-card-specs {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 1.25rem;
}
.model-card-points {
  list-style: none;
  margin-bottom: 1.25rem;
}
.model-card-points li {
  font-size: 13px;
  color: var(--text);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.model-card-points li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--hint);
}
.model-card-weakness {
  font-size: 12px;
  color: var(--hint);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-style: italic;
}

/* ===== CONTACT SECTION ===== */
.contact-section { background: var(--bg3); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.cta-btn-light {
  display: inline-block;
  padding: 12px 28px;
  background: transparent;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(239,159,39,0.4);
  letter-spacing: 0.02em;
  transition: all .2s;
  margin-top: 1rem;
}
.cta-btn-light:hover { background: rgba(239,159,39,0.1); }
.contact-facts { display: flex; flex-direction: column; gap: 2rem; }
.fact-item {}
.fact-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 6px;
}
.fact-label { font-size: 14px; color: var(--muted); line-height: 1.5; }

/* ===== FOOTER ===== */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--hint);
}

/* ===== TECHSTACK SECTION ===== */
.techstack-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}

.techstack-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.ts-tab-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 1rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all .2s;
  min-width: 200px;
  text-align: left;
  font-family: var(--font-body);
  margin-bottom: -1px;
}
.ts-tab-btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.02);
}
.ts-tab-btn.active {
  border-bottom-color: var(--amber);
}
.ts-tab-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: -0.01em;
  transition: color .2s;
}
.ts-tab-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--hint);
  transition: color .2s;
}
.ts-tab-btn.active .ts-tab-name { color: #fff; }
.ts-tab-btn.active .ts-tab-tag { color: var(--amber); }
.ts-tab-coming { cursor: not-allowed; opacity: 0.45; }
.ts-tab-coming .ts-tab-name { font-style: italic; }

/* Product panels */
.ts-product-panel { display: none; animation: fadeIn .3s ease; }
.ts-product-panel.active { display: block; }

/* Product header */
.ts-product-header {
  padding-bottom: 2.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}
.ts-product-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.75rem;
}
.ts-product-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 0.75rem;
  line-height: 1.1;
}
.ts-product-tagline {
  font-size: 17px;
  color: var(--muted);
  max-width: 680px;
  margin-bottom: 1.5rem;
}
.ts-product-badges {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Section blocks within product panel */
.ts-section-block {
  margin-bottom: 3.5rem;
}
.ts-block-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}
.ts-block-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 1.25rem;
}
.ts-block-intro {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 1rem;
  max-width: 720px;
}

/* KnowledgeVault — diagram */
.kv-legend {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 1.25rem;
  font-family: var(--font-mono);
}
.kv-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.kv-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}
.kv-dot-private { background: var(--teal); }
.kv-dot-public  { background: var(--amber); }
.kv-dot-danger  { background: #f87171; }
.kv-dot-neutral { background: var(--blue); }

.kv-diagram-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.kv-diagram {
  width: 100%;
  height: auto;
  display: block;
}

/* KnowledgeVault — tables */
.kv-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
.kv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.kv-table th,
.kv-table td {
  padding: 0.875rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
.kv-table tr:last-child td {
  border-bottom: none;
}
.kv-table th {
  color: var(--amber);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  background: rgba(255,255,255,0.02);
}
.kv-table td { color: var(--text); }
.kv-table code {
  font-size: 12px;
}
.kv-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}
.kv-tag-danger { color: #f87171; }
.kv-check { color: var(--teal); }
.kv-dash {
  color: var(--hint);
  font-family: var(--font-mono);
  text-align: center;
  width: 40px;
}

/* KnowledgeVault — code block */
.kv-code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--purple);
  margin-bottom: 1.25rem;
}
.kv-code code {
  background: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* KnowledgeVault — callouts */
.kv-callout {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border-left: 3px solid;
  margin-bottom: 0.75rem;
  font-size: 14px;
  line-height: 1.6;
}
.kv-callout strong { color: #fff; font-weight: 500; }
.kv-callout-info {
  background: rgba(83,74,183,0.08);
  border-left-color: var(--purple);
  color: var(--text);
}
.kv-callout-danger {
  background: rgba(248,113,113,0.08);
  border-left-color: #f87171;
  color: var(--text);
}

/* Badge — teal variant for product header */
.badge-teal {
  background: var(--teal-lt);
  color: var(--teal-dk);
}

/* ===== MODEL PLAYGROUND ===== */
.playground-section {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

/* Status banner */
.pg-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  margin-bottom: 1.5rem;
  font-size: 13px;
}
.pg-status-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(239,159,39,0.15);
}
.pg-status[data-mode="live"] .pg-status-dot {
  background: var(--teal);
  box-shadow: 0 0 0 3px rgba(29,158,117,0.15);
}
.pg-status-text { color: var(--muted); flex: 1; }
.pg-status-toggle {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: all .2s;
  flex-shrink: 0;
}
.pg-status-toggle:hover { background: var(--bg3); border-color: var(--amber); }

/* Settings panel */
.pg-settings {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.pg-field { display: block; }
.pg-field-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.5rem;
}
.pg-input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.7rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 13px;
  transition: border-color .2s;
}
.pg-input:focus { outline: none; border-color: var(--amber); }
.pg-settings-hint {
  font-size: 12px;
  color: var(--hint);
  margin: 0.75rem 0 0;
  line-height: 1.6;
}
.pg-settings-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1rem;
}
.pg-btn-secondary {
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  transition: all .2s;
}
.pg-btn-secondary:hover { border-color: var(--amber); }
.pg-settings-result { font-size: 12px; font-family: var(--font-mono); }
.pg-settings-result.ok { color: var(--teal); }
.pg-settings-result.err { color: #f87171; }

/* Prompt input */
.pg-prompt-wrap {
  border: 1px solid var(--border2);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
  margin-bottom: 1.5rem;
  transition: border-color .2s;
}
.pg-prompt-wrap:focus-within { border-color: var(--amber); }
.pg-prompt {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 1.1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  resize: vertical;
  min-height: 80px;
}
.pg-prompt:focus { outline: none; }
.pg-prompt::placeholder { color: var(--hint); }
.pg-prompt-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--bg2);
  flex-wrap: wrap;
}
.pg-examples {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.pg-examples-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--hint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.pg-chip {
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--muted);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 12px;
  transition: all .2s;
}
.pg-chip:hover { color: var(--text); border-color: var(--amber); }
.pg-run {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--amber);
  border: none;
  color: #1a1505;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  transition: all .2s;
  flex-shrink: 0;
}
.pg-run:hover:not(:disabled) { filter: brightness(1.08); }
.pg-run:disabled { opacity: 0.55; cursor: not-allowed; }
.pg-run-spinner {
  width: 13px; height: 13px;
  border: 2px solid rgba(26,21,5,0.35);
  border-top-color: #1a1505;
  border-radius: 50%;
  animation: pg-spin 0.7s linear infinite;
}
@keyframes pg-spin { to { transform: rotate(360deg); } }

/* Output grid */
.pg-outputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}
.pg-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  min-height: 280px;
}
.pg-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.pg-card-titles { display: flex; flex-direction: column; gap: 3px; }
.pg-card-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: #fff;
}
.pg-card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--hint);
}
.pg-card-status {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  flex-shrink: 0;
}
.pg-card-status[data-state="idle"]    { color: var(--hint); background: var(--bg3); }
.pg-card-status[data-state="running"] { color: var(--amber); background: rgba(239,159,39,0.12); }
.pg-card-status[data-state="done"]    { color: var(--teal);  background: rgba(29,158,117,0.12); }
.pg-card-status[data-state="error"]   { color: #f87171;      background: rgba(248,113,113,0.12); }
.pg-card-body {
  flex: 1;
  padding: 1.1rem;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
  max-height: 420px;
}
.pg-placeholder { color: var(--hint); font-style: italic; }
.pg-card-body .pg-cursor {
  display: inline-block;
  width: 7px; height: 1.05em;
  background: var(--amber);
  vertical-align: text-bottom;
  animation: pg-blink 1s steps(2) infinite;
  margin-left: 1px;
}
@keyframes pg-blink { 0%,50% { opacity: 1; } 50.01%,100% { opacity: 0; } }
.pg-card-foot {
  padding: 0.6rem 1.1rem;
  border-top: 1px solid var(--border);
  min-height: 1px;
}
.pg-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--hint);
}
.pg-disclaimer {
  font-size: 12px;
  color: var(--hint);
  text-align: center;
  margin: 0;
  font-style: italic;
}

/* ===== LIVE RAG DEMO ===== */
.ragdemo-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.rag-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

/* Left: document panel */
.rag-doc-panel { display: flex; flex-direction: column; gap: 1rem; }
.rag-dropzone {
  border: 1.5px dashed var(--border2);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  transition: all .2s;
}
.rag-dropzone:hover, .rag-dropzone.dragover {
  border-color: var(--amber);
  background: rgba(239,159,39,0.04);
}
.rag-drop-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.6rem;
  padding: 2.25rem 1.25rem;
}
.rag-drop-icon { color: var(--amber); opacity: 0.85; }
.rag-drop-title { font-size: 14px; color: var(--text); font-weight: 500; }
.rag-drop-sub { font-size: 12px; color: var(--hint); }

.rag-docinfo {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 1rem;
}
.rag-docinfo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.rag-doc-name {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
  word-break: break-all;
}
.rag-doc-clear {
  background: transparent;
  border: none;
  color: var(--hint);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
  transition: all .2s;
}
.rag-doc-clear:hover { color: #f87171; background: rgba(248,113,113,0.1); }
.rag-progress { margin-top: 0.85rem; }
.rag-progress-bar {
  height: 6px;
  background: var(--bg3);
  border-radius: 999px;
  overflow: hidden;
}
.rag-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--amber);
  border-radius: 999px;
  transition: width .25s ease;
}
.rag-progress-label {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}
.rag-doc-stats {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}
.rag-doc-stats b { color: var(--teal); font-weight: 500; }
.rag-sample-btn {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--muted);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  text-align: left;
  transition: all .2s;
}
.rag-sample-btn:hover { color: var(--text); border-color: var(--amber); }

/* Right: chat panel */
.rag-chat-panel {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  min-height: 420px;
  max-height: 560px;
}
.rag-chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.rag-empty { margin: auto; text-align: center; max-width: 360px; }
.rag-empty-title { color: var(--muted); font-size: 14px; margin: 0 0 0.4rem; }
.rag-empty-sub { color: var(--hint); font-size: 12px; margin: 0; line-height: 1.6; }

.rag-msg { display: flex; flex-direction: column; gap: 0.3rem; max-width: 92%; }
.rag-msg-user { align-self: flex-end; align-items: flex-end; }
.rag-msg-bot  { align-self: flex-start; align-items: flex-start; }
.rag-msg-role {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--hint);
}
.rag-bubble {
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.rag-msg-user .rag-bubble {
  background: var(--amber);
  color: #1a1505;
}
.rag-msg-bot .rag-bubble {
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--border);
}
.rag-bubble .pg-cursor {
  display: inline-block;
  width: 7px; height: 1.05em;
  background: var(--amber);
  vertical-align: text-bottom;
  animation: pg-blink 1s steps(2) infinite;
  margin-left: 1px;
}
/* Citations */
.rag-citations {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  width: 100%;
}
.rag-cite {
  border-left: 2px solid var(--teal);
  background: rgba(29,158,117,0.06);
  padding: 0.5rem 0.7rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.rag-cite-head {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}
.rag-cite-text { font-size: 12px; color: var(--muted); line-height: 1.5; }

.rag-ask-wrap {
  display: flex;
  gap: 0.6rem;
  padding: 0.85rem;
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.rag-ask-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  font-family: var(--font-body);
  font-size: 14px;
  transition: border-color .2s;
}
.rag-ask-input:focus { outline: none; border-color: var(--amber); }
.rag-ask-input:disabled { opacity: 0.5; cursor: not-allowed; }
.rag-ask-input::placeholder { color: var(--hint); }
.rag-ask-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--amber);
  border: none;
  color: #1a1505;
  padding: 0 1.3rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  transition: all .2s;
}
.rag-ask-btn:hover:not(:disabled) { filter: brightness(1.08); }
.rag-ask-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 100px; }
  .hero-visual { display: none; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
  .stat-divider { display: none; }
  .stats-inner { justify-content: center; gap: 2.5rem; }
}
@media (max-width: 600px) {
  .nav-links { display: none; }
  .pipeline-tabs { gap: 4px; }
  .tab-btn { min-width: 60px; padding: 10px 8px; }
  .tab-label { font-size: 9px; }
  .flow-diagram { flex-direction: column; align-items: flex-start; }
  .ts-tab-btn { min-width: 160px; padding: 0.875rem 1rem; }
  .ts-tab-name { font-size: 16px; }
  .ts-product-badges { gap: 0.5rem; }
  .pg-outputs { grid-template-columns: 1fr; }
  .pg-prompt-bar { flex-direction: column; align-items: stretch; }
  .pg-run { justify-content: center; }
  .rag-grid { grid-template-columns: 1fr; }
}