/* =============================================================
   BONAVIOX · SCIENCE / EVIDENCE PAGE
   Premium evidence-register aesthetic · navy + rose-gold + paper notes
   Body-copy floor 16px (eyebrow + label exceptions only).
   Loaded on top of: tokens.css → header.css → footer.css → home.css
   ============================================================= */

/* Site-wide chrome (grain + cursor halo replicated per page) */
.grain {
  position: fixed; inset: 0;
  z-index: 99; pointer-events: none;
  opacity: 0.05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.93 0 0 0 0 0.91 0 0 0 0 0.87 0 0 0 0.5 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 240px;
}
.ex-body { cursor: none; }
.ex-body a, .ex-body button, .ex-body input, .ex-body label { cursor: none; }
.cursor-halo {
  position: fixed; top: 0; left: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(200, 154, 132, 0.7);
  pointer-events: none;
  transform: translate(calc(var(--ex-cursor-x, 50vw) - 16px), calc(var(--ex-cursor-y, 50vh) - 16px));
  transition: transform 80ms linear;
  z-index: 200;
  mix-blend-mode: difference;
}
.container.container--wide { max-width: 1520px; }

/* =============================================================
   1 · HERO · EVIDENCE REGISTER
   ============================================================= */
.sci-hero {
  position: relative;
  isolation: isolate;
  padding-top: var(--sp-9);
  padding-bottom: var(--sp-10);
  text-align: left;
}
.sci-hero-atmosphere {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(40% 50% at 0% 0%, rgba(200, 154, 132, 0.10) 0%, transparent 60%),
    radial-gradient(50% 60% at 100% 100%, rgba(22, 54, 92, 0.6) 0%, transparent 70%),
    linear-gradient(180deg, var(--bv-navy-1000) 0%, var(--bv-navy-900) 60%, var(--bv-navy-800) 100%);
}
.sci-hero-molecule {
  position: absolute;
  right: -120px; top: 50%;
  transform: translateY(-50%);
  width: 720px; height: 720px;
  color: var(--accent);
  opacity: 0.45;
  z-index: 1;
  pointer-events: none;
  animation: sci-mol-rotate 90s linear infinite;
}
@keyframes sci-mol-rotate {
  to { transform: translateY(-50%) rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .sci-hero-molecule { animation: none; }
}
.sci-hero-inner { position: relative; z-index: 2; max-width: 880px; }

/* Register strip · mono numerals at the top of hero */
.sci-register {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono, "JetBrains Mono", monospace);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 0 0 var(--sp-6);
  padding: 6px 16px;
  border: 1px solid var(--hairline-soft);
  border-radius: 999px;
  background: rgba(244, 242, 238, 0.03);
  backdrop-filter: blur(4px);
  width: fit-content;
}
.sci-register-dot {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

.sci-lead {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.7;
  color: var(--fg-2);
  margin: var(--sp-5) 0 var(--sp-7);
  max-width: 720px;
  text-wrap: pretty;
}

/* Jumplist — pill-style chapter nav */
.sci-jumplist {
  list-style: none;
  margin: 0;
  padding: var(--sp-5) 0 0;
  border-top: 1px solid var(--hairline-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sci-jumplist a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--hairline-soft);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-1);
  border-bottom: 1px solid var(--hairline-soft);
  transition: border-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.sci-jumplist a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200, 154, 132, 0.05);
}

/* =============================================================
   2 · THESIS · MARGIN-NOTE LAYOUT
   ============================================================= */
.sci-thesis {
  background:
    radial-gradient(60% 40% at 0% 100%, rgba(22, 54, 92, 0.6) 0%, transparent 70%),
    var(--bv-navy-900);
}
.sci-thesis-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 80px;
  align-items: start;
}
.sci-thesis-aside {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--hairline);
  padding-top: var(--sp-4);
}
.sci-thesis-folio {
  font-family: var(--font-mono, monospace);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
}
.sci-thesis-cat {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.sci-thesis-body { max-width: 820px; }
.sci-thesis-lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.45;
  color: var(--fg-1);
  margin: var(--sp-3) 0 var(--sp-6);
  letter-spacing: -0.005em;
}
.sci-thesis-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.sci-thesis-cols p {
  font-size: 16px;
  line-height: 1.72;
  color: var(--fg-2);
  margin: 0;
}

/* =============================================================
   3 · INGREDIENT RATIONALE OVERVIEW (4-up)
   ============================================================= */
.sci-rationale-section {
  background:
    radial-gradient(50% 50% at 100% 0%, rgba(200, 154, 132, 0.06) 0%, transparent 70%),
    var(--bv-navy-1000);
}
.sci-rat-grid {
  list-style: none;
  margin: var(--sp-7) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.sci-rat-card {
  padding: var(--sp-6) var(--sp-5);
  border-right: 1px solid var(--hairline);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transition: background var(--dur-base) var(--ease-out);
}
.sci-rat-card:last-child { border-right: 0; }
.sci-rat-card:hover {
  background:
    linear-gradient(180deg, rgba(200,154,132,0.04) 0%, transparent 80%),
    rgba(244,242,238,0.02);
}
.sci-rat-card .eyebrow { margin: 0; }
.sci-rat-folio {
  position: absolute;
  top: var(--sp-6);
  right: var(--sp-5);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.sci-rat-name {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 400;
  color: var(--fg-1);
  margin: var(--sp-2) 0 var(--sp-3);
  line-height: 1.18;
  letter-spacing: -0.012em;
}
.sci-rat-name sup {
  font-size: 0.4em;
  color: var(--accent);
  vertical-align: top;
  margin-left: 1px;
}
.sci-rat-body {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-2);
  margin: 0;
  flex: 1;
}
.sci-rat-card .btn-text { padding: 8px 0 0; align-self: flex-start; }
.sci-rat-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.sci-rat-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.sci-rat-card--accent {
  background:
    linear-gradient(160deg, rgba(200,154,132,0.06) 0%, transparent 60%),
    rgba(244,242,238,0.02);
}

/* =============================================================
   4-5 · DEEP-DIVES (HA, AKBA) · MARGIN + BODY
   ============================================================= */
.sci-deep {
  position: relative;
}
.sci-deep--ha {
  background:
    radial-gradient(60% 50% at 0% 0%, rgba(200, 154, 132, 0.06) 0%, transparent 70%),
    var(--bv-navy-900);
}
.sci-deep--akba {
  background:
    radial-gradient(60% 50% at 100% 100%, rgba(22, 54, 92, 0.6) 0%, transparent 70%),
    var(--bv-navy-1000);
}
.sci-deep-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 96px;
  align-items: start;
}
.sci-deep-grid--flip {
  grid-template-columns: 1fr 280px;
}
.sci-deep-grid--flip .sci-deep-margin { order: 2; }
.sci-deep-grid--flip .sci-deep-body { order: 1; }

.sci-deep-margin {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px solid var(--hairline);
  padding-top: var(--sp-4);
}
.sci-deep-folio {
  font-family: var(--font-mono, monospace);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
}
.sci-deep-cat {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.sci-deep-meta {
  list-style: none;
  margin: var(--sp-4) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--hairline-soft);
  padding-top: var(--sp-4);
}
.sci-deep-meta li {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 14px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--fg-2);
}
.sci-deep-meta li span:first-child {
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.sci-deep-body { max-width: 760px; }
.sci-deep-body .display-2 { line-height: 1.04; }
.sci-deep-lead {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(19px, 1.8vw, 24px);
  line-height: 1.45;
  color: var(--fg-1);
  margin: var(--sp-3) 0 var(--sp-6);
  letter-spacing: -0.005em;
}
.sci-deep-body p {
  font-size: 16px;
  line-height: 1.72;
  color: var(--fg-2);
  margin: 0 0 var(--sp-4);
  max-width: 640px;
}
.sci-deep-sub {
  font-family: var(--font-sans);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: var(--sp-5) 0 var(--sp-3);
}

.sci-deep-quote {
  position: relative;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: var(--sp-6) var(--sp-5);
  margin: var(--sp-6) 0;
  background:
    linear-gradient(90deg, rgba(200,154,132,0.04) 0%, transparent 60%);
}
.sci-deep-quote-mark {
  position: absolute;
  top: -10px; left: var(--sp-5);
  font-family: var(--font-display);
  font-size: 64px;
  line-height: 1;
  color: var(--accent);
}
.sci-deep-quote p {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.4;
  color: var(--fg-1);
  margin: 0 0 var(--sp-3);
  letter-spacing: -0.005em;
}
.sci-deep-quote-by {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.sci-deep-figure {
  color: var(--accent);
  margin: var(--sp-5) 0 var(--sp-3);
  padding: var(--sp-4);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-3);
  background: rgba(244, 242, 238, 0.02);
}
.sci-deep-figure svg { width: 100%; height: auto; display: block; }

/* =============================================================
   6 · MESOPOROSIL NOTE · paper card on dark
   ============================================================= */
.sci-meso {
  background:
    radial-gradient(50% 60% at 100% 0%, rgba(200,154,132,0.08) 0%, transparent 70%),
    var(--bv-navy-1000);
}
.sci-meso-card {
  max-width: 980px;
  margin: 0 auto;
  background:
    radial-gradient(50% 50% at 30% 20%, rgba(255,255,255,0.5) 0%, transparent 65%),
    var(--bv-paper);
  color: var(--fg-on-paper-1);
  border: 1px solid var(--bv-paper-deep);
  border-radius: var(--r-4);
  padding: var(--sp-8) var(--sp-7);
  position: relative;
  box-shadow: 0 30px 80px rgba(8, 18, 33, 0.45);
}
.sci-meso-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bv-rose-600);
  padding: 6px 14px;
  border: 1px solid var(--bv-rose-600);
  border-radius: 999px;
  margin-bottom: var(--sp-5);
  background: rgba(200,154,132,0.06);
}
.sci-meso-body {
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.7;
  color: rgba(27, 27, 27, 0.78);
  margin: 0 0 var(--sp-6);
  max-width: 720px;
}
.sci-meso-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hairline-paper);
}
.sci-meso-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline-paper);
  font-size: 16px;
  line-height: 1.65;
  color: rgba(27, 27, 27, 0.78);
}
.sci-meso-list strong { color: var(--bv-navy-900); font-weight: 600; }
.sci-meso-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 16px;
  color: var(--bv-rose-600);
}

/* =============================================================
   7 · TESTING & MANUFACTURING · LOT RELEASE LEDGER
   Vertical audit-ledger aesthetic — central spine with scroll-driven
   fill, 5 alternating cards, click-to-expand log entries, final
   "Released" rubber stamp at the bottom.
   ============================================================= */
.sci-quality {
  position: relative;
  background:
    radial-gradient(50% 50% at 50% 0%, rgba(22,54,92,0.7) 0%, transparent 70%),
    radial-gradient(40% 40% at 100% 100%, rgba(200,154,132,0.05) 0%, transparent 70%),
    var(--bv-navy-1000);
  overflow: clip;
}
/* Faint ledger graph paper · subtle, supports audit feel */
.sci-quality::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(200, 154, 132, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 154, 132, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 90%);
}
.sci-ledger-head { position: relative; z-index: 1; }

/* Ledger metadata strip · sits under the headline */
.sci-ledger-meta {
  margin-top: var(--sp-6);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.sci-ledger-meta > div {
  padding: 14px 18px;
  border-right: 1px solid var(--hairline-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sci-ledger-meta > div:last-child { border-right: 0; }
.sci-ledger-meta-k {
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.sci-ledger-meta-v {
  font-family: var(--font-mono, monospace);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--fg-1);
}
.sci-ledger-meta-v [data-ledger-active] {
  color: var(--accent);
  font-weight: 600;
}

/* Ledger main · vertical spine + alternating cards */
.sci-ledger {
  position: relative;
  margin-top: var(--sp-8);
  padding: var(--sp-7) 0 var(--sp-5);
  z-index: 1;
}
.sci-ledger-spine {
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--hairline);
  transform: translateX(-0.5px);
}
.sci-ledger-spine-fill {
  position: absolute;
  left: 0; top: 0;
  width: 100%;
  height: calc(var(--ledger-progress, 0) * 100%);
  background: linear-gradient(180deg, var(--accent) 0%, var(--bv-rose-400) 100%);
  box-shadow: 0 0 12px rgba(200, 154, 132, 0.45);
  transition: height 240ms var(--ease-out);
}
.sci-ledger-spine-cap {
  position: absolute;
  left: 50%;
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background: var(--bv-navy-1000);
  transform: translate(-50%, -50%);
}
.sci-ledger-spine-cap--top { top: 0; }
.sci-ledger-spine-cap--bot { top: 100%; background: var(--accent); }

/* Card list · alternating left / right */
.sci-ledger-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-7);
}
.sci-ledger-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  align-items: start;
  min-height: 180px;
}
.sci-ledger-row--left  .sci-ledger-card { grid-column: 1; }
.sci-ledger-row--right .sci-ledger-card { grid-column: 3; }
.sci-ledger-row--left  { text-align: right; }
.sci-ledger-row--right { text-align: left;  }

/* Card */
.sci-ledger-card {
  position: relative;
  display: block;
  width: 100%;
  padding: 22px 26px;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-3);
  background:
    linear-gradient(180deg, rgba(244, 242, 238, 0.04) 0%, transparent 100%),
    rgba(15, 39, 68, 0.55);
  backdrop-filter: blur(6px);
  color: inherit;
  text-align: inherit;
  cursor: pointer;
  font: inherit;
  transition:
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.sci-ledger-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(8, 18, 33, 0.45);
}
.sci-ledger-card[aria-expanded="true"] {
  border-color: var(--accent);
  background:
    linear-gradient(180deg, rgba(200, 154, 132, 0.10) 0%, transparent 80%),
    rgba(15, 39, 68, 0.7);
}

/* Stamp · sits on the spine */
.sci-ledger-stamp {
  position: absolute;
  top: 26px;
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.sci-ledger-row--left .sci-ledger-stamp {
  right: -106px;
}
.sci-ledger-row--right .sci-ledger-stamp {
  left: -106px;
}
.sci-ledger-stamp-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--accent);
  background:
    radial-gradient(circle at 35% 30%, rgba(244, 242, 238, 0.22) 0%, rgba(200, 154, 132, 0.10) 30%, transparent 70%),
    var(--bv-navy-900);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 6px 18px rgba(8, 18, 33, 0.45);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.sci-ledger-stamp-num {
  position: relative;
  font-family: var(--font-mono, monospace);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  z-index: 1;
}
.sci-ledger-card:hover .sci-ledger-stamp-ring,
.sci-ledger-row.is-active .sci-ledger-stamp-ring {
  transform: scale(1.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.10), 0 0 0 4px rgba(200, 154, 132, 0.10), 0 12px 30px rgba(8, 18, 33, 0.55);
}
.sci-ledger-row.is-active .sci-ledger-stamp-ring {
  background:
    radial-gradient(circle at 35% 30%, rgba(244, 242, 238, 0.28) 0%, rgba(200, 154, 132, 0.20) 30%, transparent 70%),
    var(--bv-navy-700);
}
/* Final stamp · gets a check icon overlay */
.sci-ledger-stamp--final .sci-ledger-stamp-tick {
  position: absolute;
  right: -4px; bottom: -4px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bv-navy-900);
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  border: 2px solid var(--bv-navy-1000);
  animation: sci-final-ping 2.2s ease-out infinite;
}
.sci-ledger-stamp--final .sci-ledger-stamp-tick [data-lucide] {
  width: 11px; height: 11px;
  stroke-width: 2.6;
}
@keyframes sci-final-ping {
  0%, 100% { box-shadow: 0 0 0 0 rgba(200, 154, 132, 0.55), 0 0 0 2px var(--bv-navy-1000); }
  50%      { box-shadow: 0 0 0 8px rgba(200, 154, 132, 0),    0 0 0 2px var(--bv-navy-1000); }
}

/* Leader line · from card edge to spine */
.sci-ledger-leader {
  position: absolute;
  top: 54px;
  height: 1px;
  background: var(--hairline);
  z-index: 1;
}
.sci-ledger-row--left .sci-ledger-leader {
  right: -82px;
  width: 56px;
}
.sci-ledger-row--right .sci-ledger-leader {
  left: -82px;
  width: 56px;
}

/* Card content */
.sci-ledger-card-head { margin-bottom: var(--sp-3); }
.sci-ledger-cat {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 6px;
}
.sci-ledger-name {
  font-family: var(--font-display);
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 400;
  color: var(--fg-1);
  margin: 0;
  letter-spacing: -0.012em;
  line-height: 1.2;
}
.sci-ledger-body {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--fg-2);
  margin: 0 0 var(--sp-3);
}
.sci-ledger-body em {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent);
}

/* Expandable log entry · collapsed by default */
.sci-ledger-extra {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--dur-slow) var(--ease-out), opacity var(--dur-base) var(--ease-out), margin var(--dur-base) var(--ease-out);
  margin: 0;
  border-top: 1px dashed transparent;
  padding-top: 0;
}
.sci-ledger-card[aria-expanded="true"] .sci-ledger-extra {
  max-height: 280px;
  opacity: 1;
  margin: var(--sp-3) 0 var(--sp-3);
  padding-top: var(--sp-3);
  border-top-color: var(--hairline);
}
.sci-ledger-extra-lead {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 var(--sp-2);
}
.sci-ledger-extra ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sci-ledger-extra ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-2);
  text-align: left;
}
.sci-ledger-row--left .sci-ledger-extra ul li { text-align: right; padding-left: 0; padding-right: 18px; }
.sci-ledger-extra ul li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 0;
  width: 8px; height: 1px;
  background: var(--accent);
}
.sci-ledger-row--left .sci-ledger-extra ul li::before { left: auto; right: 0; }

/* Card footer · audit signature line */
.sci-ledger-foot {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--hairline-soft);
}
.sci-ledger-row--left .sci-ledger-foot { justify-content: flex-end; }
.sci-ledger-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(200, 154, 132, 0.08);
}
.sci-ledger-tag [data-lucide] { width: 11px; height: 11px; stroke-width: 2.4; }
.sci-ledger-tag--final {
  color: var(--bv-navy-900);
  background: var(--accent);
}
.sci-ledger-tag--final [data-lucide] { stroke-width: 2.4; }
.sci-ledger-sig {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 13px;
  color: var(--fg-3);
  flex: 1;
  min-width: 140px;
}
.sci-ledger-row--left .sci-ledger-sig { text-align: right; }
.sci-ledger-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
  transition: color var(--dur-fast) var(--ease-out);
}
.sci-ledger-row--left .sci-ledger-more { margin-left: 0; margin-right: auto; }
.sci-ledger-more [data-lucide] {
  width: 12px; height: 12px;
  transition: transform var(--dur-base) var(--ease-out);
}
.sci-ledger-card:hover .sci-ledger-more { color: var(--accent); }
.sci-ledger-card[aria-expanded="true"] .sci-ledger-more [data-lucide] { transform: rotate(180deg); }

@media (prefers-reduced-motion: reduce) {
  .sci-ledger-stamp--final .sci-ledger-stamp-tick { animation: none; }
}

/* =============================================================
   8 · DOCUMENTATION / COA · 4-card grid
   ============================================================= */
.sci-docs {
  background:
    radial-gradient(60% 50% at 100% 100%, rgba(200,154,132,0.06) 0%, transparent 70%),
    var(--bv-navy-1000);
}
.sci-docs-grid {
  list-style: none;
  margin: var(--sp-7) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.sci-docs-card {
  position: relative;
  padding: var(--sp-6);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-3);
  background: rgba(244, 242, 238, 0.03);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.sci-docs-card:hover { border-color: var(--hairline); background: rgba(244,242,238,0.05); }
.sci-docs-card--placeholder { opacity: 0.85; }
.sci-docs-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(200,154,132,0.06);
}
.sci-docs-card--placeholder .sci-docs-status {
  color: var(--fg-3);
  border-color: var(--hairline-soft);
  background: transparent;
}
.sci-docs-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 1.8vw, 26px);
  font-weight: 400;
  color: var(--fg-1);
  margin: 0;
  letter-spacing: -0.005em;
  line-height: 1.2;
}
.sci-docs-card p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg-2);
  margin: 0;
  flex: 1;
}
.sci-docs-soon {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  color: var(--fg-3);
  align-self: flex-start;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--hairline-soft);
}

/* =============================================================
   9 · CLINICIAN-AI · shared .ex-chat module (chat.css drives it)
   No page-local overrides — section uses same look as home + product.
   ============================================================= */

/* =============================================================
   10 · FINAL CTA (uses .final-cta from home.css)
   ============================================================= */
.sci-final { padding-top: var(--sp-9); padding-bottom: var(--sp-9); }

/* =============================================================
   RESPONSIVE — 5 breakpoints
   ============================================================= */

/* ----- 1366px ----- */
@media (max-width: 1366px) {
  .sci-deep-grid { gap: 72px; }
  .sci-hero-molecule { width: 600px; height: 600px; right: -80px; }

  /* Ledger · tighten spine column slightly on smaller desktops */
  .sci-ledger { padding: var(--sp-6) 0 var(--sp-4); }
  .sci-ledger-list { gap: var(--sp-6); }
  .sci-ledger-row { grid-template-columns: 1fr 72px 1fr; min-height: 160px; }
  .sci-ledger-row--left  .sci-ledger-stamp { right: -96px; }
  .sci-ledger-row--right .sci-ledger-stamp { left:  -96px; }
  .sci-ledger-row--left  .sci-ledger-leader { right: -76px; width: 50px; }
  .sci-ledger-row--right .sci-ledger-leader { left:  -76px; width: 50px; }
  .sci-ledger-card { padding: 20px 24px; }
  .sci-ledger-name { font-size: clamp(20px, 1.8vw, 26px); }
}

/* ----- 1200px ----- */
@media (max-width: 1200px) {
  .sci-hero-molecule { width: 480px; height: 480px; opacity: 0.32; }
  .sci-thesis-grid { grid-template-columns: 180px 1fr; gap: 48px; }
  .sci-deep-grid { grid-template-columns: 240px 1fr; gap: 56px; }
  .sci-deep-grid--flip { grid-template-columns: 1fr 240px; }
  .sci-rat-grid { grid-template-columns: repeat(2, 1fr); }
  .sci-rat-card:nth-child(2) { border-right: 0; }
  .sci-rat-card:nth-child(-n+2) { border-bottom: 1px solid var(--hairline); }

  /* Ledger · still 2-column, narrower spine + smaller stamps + meta 2x2 */
  .sci-ledger-row { grid-template-columns: 1fr 56px 1fr; min-height: 150px; }
  .sci-ledger-stamp { width: 50px; height: 50px; }
  .sci-ledger-row--left  .sci-ledger-stamp { right: -82px; }
  .sci-ledger-row--right .sci-ledger-stamp { left:  -82px; }
  .sci-ledger-row--left  .sci-ledger-leader { right: -66px; width: 38px; }
  .sci-ledger-row--right .sci-ledger-leader { left:  -66px; width: 38px; }
  .sci-ledger-card { padding: 18px 22px; }
  .sci-ledger-stamp-num { font-size: 12px; }
  .sci-ledger-meta { grid-template-columns: repeat(2, 1fr); }
  .sci-ledger-meta > div:nth-child(2n) { border-right: 0; }
  .sci-ledger-meta > div:nth-child(-n+2) { border-bottom: 1px solid var(--hairline-soft); }
}

/* ----- 1024px ----- · collapse ledger to single column */
@media (max-width: 1024px) {
  html, body { overflow-x: hidden; overflow-x: clip; max-width: 100%; }
  .section { overflow-x: clip; }
  .container,
  .container.container--wide {
    padding-left: 28px;
    padding-right: 28px;
    max-width: 100%;
    box-sizing: border-box;
  }
  .sci-hero-molecule { display: none; }
  .sci-hero { padding-top: var(--sp-8); padding-bottom: var(--sp-8); }

  .sci-thesis-grid { grid-template-columns: 1fr; gap: 28px; }
  .sci-thesis-aside { position: relative; top: auto; flex-direction: row; gap: 14px; }
  .sci-thesis-cols { grid-template-columns: 1fr; gap: 20px; }

  .sci-rat-grid { grid-template-columns: 1fr; }
  .sci-rat-card { border-right: 0 !important; border-bottom: 1px solid var(--hairline); }
  .sci-rat-card:last-child { border-bottom: 0; }

  .sci-deep-grid,
  .sci-deep-grid--flip {
    grid-template-columns: 1fr;
    gap: 28px;
    justify-items: center;
  }
  .sci-deep-grid--flip .sci-deep-margin { order: 1; }
  .sci-deep-grid--flip .sci-deep-body { order: 2; }
  .sci-deep-margin {
    position: relative; top: auto;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 14px 24px;
    max-width: 720px;
    width: 100%;
    text-align: left;
  }
  .sci-deep-meta {
    flex-basis: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px 24px;
  }
  .sci-deep-meta li { grid-template-columns: 80px 1fr; min-width: 200px; }
  .sci-deep-body { max-width: 720px; margin: 0 auto; text-align: center; }
  .sci-deep-body .hairline-short { margin-left: auto; margin-right: auto; transform-origin: center; }
  .sci-deep-body p { margin-left: auto; margin-right: auto; }
  .sci-deep-quote { text-align: left; }

  /* Ledger · single-column · spine-on-left
     Spine center = column center: spine `left` matches half of stamp-column width.
     Stamp uses `justify-self: center` to align its center to spine mathematically. */
  .sci-ledger { padding: var(--sp-6) 0 var(--sp-4); margin-top: var(--sp-7); }
  .sci-ledger-spine { left: 28px; transform: none; }
  .sci-ledger-list { gap: var(--sp-5); }
  .sci-ledger-row,
  .sci-ledger-row--left,
  .sci-ledger-row--right {
    grid-template-columns: 56px 1fr;
    column-gap: 20px;
    grid-template-areas: "stamp card";
    text-align: left !important;
    min-height: 0;
  }
  .sci-ledger-row--left  .sci-ledger-card,
  .sci-ledger-row--right .sci-ledger-card {
    grid-column: 2;
    grid-area: card;
  }
  .sci-ledger-row .sci-ledger-stamp {
    position: relative;
    grid-area: stamp;
    justify-self: center;
    align-self: start;
    top: 20px;
    left: auto !important;
    right: auto !important;
    width: 48px; height: 48px;
    margin: 0;
  }
  .sci-ledger-stamp-num { font-size: 12px; }
  .sci-ledger-row .sci-ledger-leader { display: none; }
  .sci-ledger-card { padding: 20px 22px; }
  .sci-ledger-card-head { margin-top: 30px; }
  .sci-ledger-name { font-size: clamp(20px, 2.4vw, 25px); line-height: 1.22; }
  .sci-ledger-card[aria-expanded="true"] .sci-ledger-extra { max-height: 520px; }

  .sci-ledger-row--left .sci-ledger-foot,
  .sci-ledger-row--right .sci-ledger-foot { justify-content: flex-start; }
  .sci-ledger-row--left .sci-ledger-sig { text-align: left; }
  .sci-ledger-row--left .sci-ledger-extra ul li {
    text-align: left;
    padding-left: 18px;
    padding-right: 0;
  }
  .sci-ledger-row--left .sci-ledger-extra ul li::before { left: 0; right: auto; }
  .sci-ledger-row--left .sci-ledger-more { margin-left: auto; margin-right: 0; }

  .sci-ledger-meta { grid-template-columns: 1fr 1fr; margin-top: var(--sp-5); }
  .sci-ledger-meta > div:nth-child(2n) { border-right: 0; }
  .sci-ledger-meta > div:nth-child(-n+2) { border-bottom: 1px solid var(--hairline-soft); }
  .sci-ledger-meta > div { padding: 12px 16px; }

  .sci-docs-grid { grid-template-columns: 1fr; }
}

/* ----- 880px ----- · further ledger tightening */
@media (max-width: 880px) {
  .container,
  .container.container--wide { padding-left: 24px; padding-right: 24px; }
  .sci-register { font-size: 10px; gap: 10px; padding: 5px 12px; }
  .sci-jumplist a { font-size: 10.5px; padding: 8px 12px; letter-spacing: 0.14em; }

  .sci-ledger-spine { left: 24px; }
  .sci-ledger-row,
  .sci-ledger-row--left,
  .sci-ledger-row--right { grid-template-columns: 48px 1fr; column-gap: 16px; }
  .sci-ledger-row .sci-ledger-stamp { width: 42px; height: 42px; top: 16px; }
  .sci-ledger-stamp-num { font-size: 11.5px; }
  .sci-ledger-card { padding: 18px 18px 16px; }
  .sci-ledger-name { font-size: 21px; }
  .sci-ledger-body { font-size: 15px; }
  .sci-ledger-foot { gap: 10px; }
  .sci-ledger-sig { font-size: 12.5px; min-width: 120px; }
  .sci-ledger-meta > div { padding: 12px 14px; }
  .sci-ledger-meta-v { font-size: 13.5px; }
}

/* ----- 767px · mobile ----- */
@media (max-width: 767px) {
  .container,
  .container.container--wide { padding-left: 20px; padding-right: 20px; }
  .section { padding-top: var(--sp-7); padding-bottom: var(--sp-7); }

  .sci-hero-inner > .display-hero { font-size: clamp(38px, 11vw, 56px); }
  .sci-jumplist { gap: 6px; }
  .sci-jumplist a { font-size: 9.5px; padding: 7px 11px; }
  .sci-register { flex-wrap: wrap; }

  .sci-thesis-aside { flex-direction: column; gap: 4px; }

  /* Ledger · mobile · everything tight, foot wraps cleanly */
  .sci-ledger { padding: var(--sp-5) 0 var(--sp-3); margin-top: var(--sp-5); }
  .sci-ledger-spine { left: 20px; }
  .sci-ledger-spine-cap { width: 8px; height: 8px; }
  .sci-ledger-row,
  .sci-ledger-row--left,
  .sci-ledger-row--right { grid-template-columns: 40px 1fr; column-gap: 12px; }
  .sci-ledger-row .sci-ledger-stamp { width: 36px; height: 36px; top: 14px; }
  .sci-ledger-stamp-num { font-size: 10.5px; letter-spacing: 0.06em; }
  .sci-ledger-stamp--final .sci-ledger-stamp-tick {
    right: -3px; bottom: -3px; width: 18px; height: 18px;
  }
  .sci-ledger-stamp--final .sci-ledger-stamp-tick [data-lucide] { width: 9px; height: 9px; }

  .sci-ledger-card { padding: 14px 14px 12px; border-radius: var(--r-2); }
  .sci-ledger-card-head { margin-bottom: var(--sp-2); }
  .sci-ledger-cat { font-size: 10px; letter-spacing: 0.16em; margin-bottom: 4px; }
  .sci-ledger-name { font-size: 19px; line-height: 1.24; }
  .sci-ledger-body { font-size: 14.5px; line-height: 1.6; margin-bottom: var(--sp-2); }

  /* Foot: tag stays inline, sig drops to its own line, more sits beside tag */
  .sci-ledger-foot { gap: 8px; padding-top: var(--sp-2); margin-top: var(--sp-2); flex-wrap: wrap; }
  .sci-ledger-tag { padding: 3px 8px; font-size: 9.5px; letter-spacing: 0.16em; gap: 4px; }
  .sci-ledger-tag [data-lucide] { width: 10px; height: 10px; }
  .sci-ledger-sig { font-size: 11.5px; min-width: 0; flex: 1 1 100%; order: 3; text-align: left !important; }
  .sci-ledger-more { margin-left: auto !important; margin-right: 0 !important; order: 2; font-size: 9.5px; }
  .sci-ledger-more span { display: none; }

  .sci-ledger-extra ul li { font-size: 13.5px; line-height: 1.5; padding-left: 14px; }
  .sci-ledger-extra ul li::before { width: 6px; }
  .sci-ledger-extra-lead { font-size: 10px; }
  .sci-ledger-card[aria-expanded="true"] .sci-ledger-extra { max-height: 640px; }

  .sci-ledger-meta { grid-template-columns: 1fr; margin-top: var(--sp-4); }
  .sci-ledger-meta > div { border-right: 0 !important; border-bottom: 1px solid var(--hairline-soft); padding: 11px 14px; }
  .sci-ledger-meta > div:last-child { border-bottom: 0; }
  .sci-ledger-meta-k { font-size: 10px; letter-spacing: 0.18em; }
  .sci-ledger-meta-v { font-size: 13px; }

  .sci-meso-card { padding: var(--sp-6) var(--sp-4); }
}