/* BULL SERUM - token lock
   --paper #FAFAF8  --rule #C9CDD2  --ink #171A1D  --clinical #0F5FA6  --caution #C8A415
   display: Sora  body: Source Sans 3  data: Source Code Pro
   spacing scale: 8 12 16 24 32 48 64px   radius: 2px (documents don't round)  motion: 140ms ease-out
*/

:root {
  --paper: #FAFAF8;
  --rule: #C9CDD2;
  --ink: #171A1D;
  --ink-soft: #4A5158;
  --clinical: #0F5FA6;
  --caution: #C8A415;
  --caution-bg: #FBF6E6;
  --panel-max: 900px;
  --side-w: 224px;
  --bar-h: 64px;
  --radius: 2px;
  --motion: 140ms ease-out;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Source Sans 3", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2 {
  font-family: "Sora", sans-serif;
  margin: 0;
  color: var(--ink);
}

code, .mono {
  font-family: "Source Code Pro", monospace;
}

a { color: var(--clinical); }

/* brand bar */
.brand-bar {
  height: var(--bar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand-mark { display: flex; align-items: baseline; gap: 10px; }
.brand-name {
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.brand-tag {
  font-family: "Source Code Pro", monospace;
  font-size: 12px;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.brand-buy {
  font-family: "Source Code Pro", monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--paper);
  background: var(--clinical);
  border-radius: var(--radius);
  padding: 8px 16px;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: background var(--motion);
}
.brand-buy:hover { background: #0C4C85; }

/* layout */
.layout {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--side-w) 1fr;
  align-items: start;
}

.side-index {
  position: sticky;
  top: var(--bar-h);
  padding: 32px 16px 32px 24px;
  border-right: 1px solid var(--rule);
  height: calc(100vh - var(--bar-h));
  overflow-y: auto;
}
.side-index-title {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.side-index ul { list-style: none; margin: 0; padding: 0; }
.side-index li { margin: 0; }
.index-link {
  display: block;
  padding: 8px 10px;
  margin: 2px 0;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color var(--motion), border-color var(--motion), background var(--motion);
}
.index-link:hover { color: var(--ink); background: rgba(15, 95, 166, 0.06); }
.index-link.active {
  color: var(--clinical);
  border-left-color: var(--clinical);
  font-weight: 600;
  background: rgba(15, 95, 166, 0.06);
}
.side-index-status {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  color: var(--clinical);
  margin: 16px 0 0;
  height: 14px;
  opacity: 0;
  transition: opacity var(--motion);
}
.side-index-status.htmx-request { opacity: 1; }

.content { padding: 0 24px; min-width: 0; }

.panel {
  max-width: var(--panel-max);
  padding: 48px 0;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: calc(var(--bar-h) + 16px);
}
.panel:last-of-type { border-bottom: none; }
.panel h2 {
  font-size: 22px;
  margin-bottom: 8px;
}
.panel-intro {
  color: var(--ink-soft);
  margin: 0 0 20px;
  max-width: 62ch;
}

/* hero */
.panel-hero { padding-top: 40px; }
.hero-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.hero-vial {
  position: relative;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.hero-vial img { display: block; width: 100%; height: auto; }
.status-badge {
  position: absolute;
  left: 8px;
  bottom: 8px;
  background: var(--ink);
  color: var(--caution);
  font-family: "Source Code Pro", monospace;
  font-size: 10px;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border-radius: var(--radius);
}
.eyebrow {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clinical);
  margin: 0 0 10px;
}
.product-title {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 8px;
}
.product-subtitle {
  color: var(--ink-soft);
  font-size: 17px;
  margin: 0 0 24px;
  max-width: 48ch;
}
.spec-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 0 0 28px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.spec-row dt {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 0 0 4px;
}
.spec-row dd {
  margin: 0;
  font-size: 14px;
  font-family: "Source Code Pro", monospace;
}
.hero-actions { display: flex; gap: 12px; }
.btn {
  font-family: "Source Code Pro", monospace;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: var(--radius);
  letter-spacing: 0.02em;
  transition: background var(--motion), color var(--motion), border-color var(--motion);
}
.btn-primary { background: var(--clinical); color: #fff; }
.btn-primary:hover { background: #0C4C85; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--rule); }
.btn-ghost:hover { border-color: var(--ink); }

/* table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.spec-table tr { border-bottom: 1px solid var(--rule); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table th, .spec-table td {
  text-align: left;
  padding: 12px 8px;
  vertical-align: top;
  font-weight: 400;
}
.spec-table th {
  width: 38%;
  color: var(--ink-soft);
  font-family: "Source Sans 3", sans-serif;
}
.spec-table td { font-family: "Source Code Pro", monospace; font-size: 13.5px; }
.spec-table tr:hover { background: rgba(15, 95, 166, 0.04); }

/* clause lists */
.clause-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: clause;
}
.clause-list li {
  counter-increment: clause;
  position: relative;
  padding: 12px 0 12px 40px;
  border-top: 1px solid var(--rule);
  max-width: 66ch;
}
.clause-list li:first-child { border-top: none; }
.clause-list li::before {
  content: counter(clause, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 12px;
  font-family: "Source Code Pro", monospace;
  font-size: 12px;
  color: var(--clinical);
}
.panel-caution .clause-list li::before { color: var(--caution); }
.panel-caution h2 { color: var(--ink); }
.panel-caution {
  background: var(--caution-bg);
  margin-left: -24px;
  margin-right: -24px;
  padding-left: 24px;
  padding-right: 24px;
  border-left: 3px solid var(--caution);
}

/* lot */
.lot-box {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 520px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
  font: inherit;
  text-align: left;
  margin: 0 0 20px;
  transition: border-color var(--motion);
}
.lot-box:hover { border-color: var(--clinical); }
.lot-label {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}
.lot-box code { font-size: 13px; flex: 1; word-break: break-all; }
.lot-copy-flag {
  font-family: "Source Code Pro", monospace;
  font-size: 11px;
  color: var(--clinical);
  text-transform: uppercase;
  opacity: 0.7;
}
.lot-links { display: flex; gap: 20px; }
.lot-links a {
  font-family: "Source Code Pro", monospace;
  font-size: 13px;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color var(--motion);
}
.lot-links a:hover { border-color: var(--clinical); }
.x-link { display: inline-flex; align-items: center; gap: 6px; }
.x-icon { color: var(--ink-soft); }
.x-link:hover .x-icon { color: var(--clinical); }

/* footer */
.site-footer {
  max-width: var(--panel-max);
  padding: 32px 0 64px;
  color: var(--ink-soft);
  font-size: 13px;
}
.site-footer span { font-family: "Source Code Pro", monospace; color: var(--clinical); }

/* mobile */
@media (max-width: 920px) {
  .layout { grid-template-columns: 1fr; }
  .side-index {
    position: sticky;
    top: var(--bar-h);
    height: auto;
    width: 100%;
    padding: 12px 16px;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    background: var(--paper);
    overflow-x: auto;
    overflow-y: visible;
    z-index: 15;
  }
  .side-index-title { display: none; }
  .side-index ul { display: flex; gap: 4px; white-space: nowrap; }
  .index-link { border-left: none; border-bottom: 2px solid transparent; border-radius: 0; }
  .index-link.active { border-left-color: transparent; border-bottom-color: var(--clinical); }
  .side-index-status { position: absolute; right: 16px; top: 14px; }
  .hero-grid { grid-template-columns: 140px 1fr; gap: 20px; }
  .product-title { font-size: 32px; }
}

@media (max-width: 480px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-vial { max-width: 160px; }
  .brand-bar { padding: 0 16px; }
  .content { padding: 0 16px; }
  .panel-caution { margin-left: -16px; margin-right: -16px; padding-left: 16px; padding-right: 16px; }
  .hero-actions { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}