/* ===================================================================
   BayHisto — design tokens
   Palette drawn from actual histology stain chemistry:
   hematoxylin (violet), eosin (rose), trichrome (teal) —
   not a generic tech palette.
=================================================================== */
:root {
  --bg: #F5F6F1;
  --bg-panel: #FFFFFF;
  --ink: #191A2A;
  --ink-soft: #55566B;
  --ink-faint: #8B8C9C;
  --hema: #5B3468;      /* hematoxylin violet */
  --hema-tint: #F1E9F2;
  --eosin: #C24D6B;     /* eosin rose */
  --eosin-tint: #FBECEF;
  --trichrome: #2E6E62; /* trichrome teal */
  --trichrome-tint: #E9F1EE;
  --line: #E1DED2;
  --line-strong: #C9C5B4;
  --radius: 3px;
  --radius-lg: 6px;
  --maxw: 1120px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 2.75rem;
  --space-5: 4.5rem;
  --space-6: 7rem;
}

@media (prefers-color-scheme: dark) {
  /* Intentionally not implementing a separate dark theme:
     a lab/clinical brand reads best as consistently light,
     like a lit slide on a viewing box. */
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 480;
  letter-spacing: -0.01em;
  line-height: 1.12;
  margin: 0;
  color: var(--ink);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 420; }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; font-weight: 560; }

p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: inherit; }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hema);
  font-weight: 500;
}

.mono { font-family: 'IBM Plex Mono', monospace; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Visible keyboard focus everywhere */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--hema);
  outline-offset: 3px;
}

/* ---------------- Header / nav ---------------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(245, 246, 241, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}
.wordmark {
  font-family: 'Fraunces', serif;
  font-size: 1.32rem;
  font-weight: 560;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}
.wordmark .dot { color: var(--eosin); font-size: 1.1em; }

nav.links {
  display: flex;
  gap: var(--space-4);
  font-size: 0.93rem;
}
nav.links a {
  text-decoration: none;
  color: var(--ink-soft);
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
nav.links a:hover, nav.links a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--eosin);
}

.nav-cta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8rem;
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.nav-cta:hover { background: var(--ink); color: var(--bg); }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: none;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: transform 0.2s;
}
.menu-toggle span::before { position: absolute; top: -6px; }
.menu-toggle span::after { position: absolute; top: 6px; }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.mobile-nav a {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 1rem;
}
.mobile-nav a[aria-current="page"] { color: var(--hema); }
.mobile-nav.open { display: flex; }

/* ---------------- Hero ---------------- */
.hero {
  padding: var(--space-6) 0 var(--space-5);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-5);
  align-items: center;
}
.hero h1 { margin-bottom: 1.1rem; }
.hero .lede { font-size: 1.15rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 1rem; margin-top: var(--space-3); flex-wrap: wrap; }

.btn {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.84rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: transform 0.12s ease, background 0.15s, color 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--hema); border-color: var(--hema); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); }

/* Signature element: stain-swatch rack, used on home + services */
.slide-rack {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}
.slide {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 0.55rem;
}
.slide::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.9;
}
.slide span {
  position: relative;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.35);
}
.slide.s1::before { background: linear-gradient(155deg, #6B3F7A, #C24D6B 78%); }
.slide.s2::before { background: linear-gradient(155deg, #2E6E62, #7FA88B 80%); }
.slide.s3::before { background: linear-gradient(155deg, #A23A4E, #E39CA8 85%); }
.slide.s4::before { background: linear-gradient(155deg, #3B3B45, #7A6A55 85%); }
.slide.s5::before { background: linear-gradient(155deg, #4B3A78, #8E6FAE 85%); }
.slide.s6::before { background: linear-gradient(155deg, #1F1E24, #574F45 85%); }

/* ---------------- Section scaffolding ---------------- */
section { padding: var(--space-5) 0; }
section.tight { padding: var(--space-4) 0; }
.section-head { max-width: 60ch; margin-bottom: var(--space-4); }
.section-head h2 { margin-top: 0.5rem; }

.divider { border: none; border-top: 1px solid var(--line); margin: 0; }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

/* ---------------- Feature grid ---------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.feature .eyebrow { display: block; margin-bottom: 0.6rem; }
.feature h3 { margin-bottom: 0.4rem; }
.feature p { font-size: 0.95rem; margin-bottom: 0; }

/* ---------------- Pricing table ---------------- */
table.pricing {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}
table.pricing th {
  text-align: left;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line-strong);
}
table.pricing td {
  padding: 0.95rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.pricing tr:last-child td { border-bottom: none; }
table.pricing .svc { font-weight: 560; color: var(--ink); }
table.pricing .price { font-family: 'IBM Plex Mono', monospace; white-space: nowrap; }
table.pricing .time { color: var(--ink-soft); font-size: 0.88rem; white-space: nowrap; }
.category-row td {
  padding-top: 1.6rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--eosin);
  border-bottom: none;
}

.stain-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
}
.chip-dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }

/* ---------------- Timeline / process ---------------- */
.process-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.process-step {
  background: var(--bg-panel);
  padding: var(--space-3) var(--space-2);
}
.process-step .eyebrow { margin-bottom: 0.5rem; }

/* ---------------- Quote / callout ---------------- */
.callout {
  border-left: 3px solid var(--hema);
  padding: 0.3rem 0 0.3rem 1.4rem;
}
.callout p { font-size: 1.05rem; color: var(--ink); font-style: italic; }

/* ---------------- Founder / about ---------------- */
.founder-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-4);
  align-items: start;
}
.founder-mark {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--hema), var(--trichrome));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: 'Fraunces', serif;
  font-size: 3rem;
}
.credentials-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.credentials-list li {
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1rem;
  font-size: 0.92rem;
}
.credentials-list .label { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); padding-top: 0.15rem; }

/* ---------------- Contact ---------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.contact-detail { margin-bottom: var(--space-3); }
.contact-detail .eyebrow { display: block; margin-bottom: 0.35rem; }
.contact-detail a, .contact-detail .val { font-size: 1.05rem; text-decoration: none; }
.contact-detail a:hover { color: var(--hema); }

form.contact-form label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.4rem;
}
form.contact-form .field { margin-bottom: var(--space-2); }
form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
form.contact-form textarea { resize: vertical; min-height: 110px; }
form.contact-form button { cursor: pointer; }

/* ---------------- Footer ---------------- */
footer.site {
  border-top: 1px solid var(--line);
  padding: var(--space-4) 0 var(--space-3);
  margin-top: var(--space-5);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-note { font-size: 0.82rem; color: var(--ink-faint); max-width: 42ch; }
.footer-links { display: flex; gap: 1.5rem; font-size: 0.85rem; }
.footer-links a { text-decoration: none; color: var(--ink-soft); }
.footer-links a:hover { color: var(--hema); }

/* ---------------- Dark hero w/ inline lead form ---------------- */
.hero-dark {
  background: #07060a url('psr-texture.svg') center 35% / cover no-repeat;
  padding: var(--space-6) 0 var(--space-5);
  position: relative;
  overflow: hidden;
}
.hero-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7,6,10,0.94) 0%, rgba(7,6,10,0.82) 32%, rgba(7,6,10,0.52) 60%, rgba(7,6,10,0.3) 100%);
}
.hero-dark .wrap { position: relative; z-index: 1; }
.hero-dark-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-5);
  align-items: start;
}
.hero-dark .eyebrow { color: var(--eosin-tint); opacity: 0.85; }
.hero-dark h1, .hero-dark .lede { color: #F5F3EF; }
.hero-dark .lede { opacity: 0.86; }
.hero-dark .btn-primary { background: #F5F3EF; color: var(--ink); border-color: #F5F3EF; }
.hero-dark .btn-primary:hover { background: var(--eosin); border-color: var(--eosin); color: #fff; }
.hero-dark .btn-ghost { color: #F5F3EF; border-color: rgba(245,243,239,0.5); }
.hero-dark .btn-ghost:hover { background: #F5F3EF; color: var(--ink); }

.lead-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.lead-card h2 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hema);
  margin-bottom: var(--space-3);
}
.lead-card .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.lead-card .field { margin-bottom: 0.7rem; }
.lead-card label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.3rem;
}
.lead-card input, .lead-card textarea {
  width: 100%;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
.lead-card textarea { resize: vertical; min-height: 90px; }
.lead-card button.btn-primary {
  width: 100%;
  border: none;
  font-size: 0.82rem;
  padding: 0.9rem 1.5rem;
  margin-top: 0.3rem;
  background: var(--eosin);
  color: #fff;
}
.lead-card button.btn-primary:hover { background: var(--hema); }

/* ---------------- Accordion solutions ---------------- */
.accordion-list { border-top: 1px solid var(--line); }
.accordion-list details {
  border-bottom: 1px solid var(--line);
  padding: 1.1rem 0;
}
.accordion-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: 'Fraunces', serif;
  font-size: 1.05rem;
  font-weight: 560;
  color: var(--ink);
}
.accordion-list summary::-webkit-details-marker { display: none; }
.accordion-list summary .plus {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--hema);
  color: var(--hema);
  display: flex; align-items: center; justify-content: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1rem;
  transition: transform 0.15s, background 0.15s, color 0.15s;
}
.accordion-list details[open] summary .plus {
  background: var(--hema); color: #fff; transform: rotate(45deg);
}
.accordion-list .acc-body {
  padding: 0.7rem 0 0 2.6rem;
  font-size: 0.94rem;
  color: var(--ink-soft);
  max-width: 56ch;
}

.solutions-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.solutions-visual .slide { aspect-ratio: auto; height: 100%; }
.solutions-visual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  height: 100%;
}

/* ---------------- Dark CTA band ---------------- */
.cta-band {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3);
  text-align: center;
}
.cta-band h3 { color: #F5F3EF; font-size: 1.5rem; margin-bottom: 1.4rem; }
.cta-band .btn-primary { background: var(--eosin); border-color: var(--eosin); color: #fff; }
.cta-band .btn-primary:hover { background: #fff; color: var(--ink); border-color: #fff; }

/* ---------------- Credibility / stats section ---------------- */
.credibility-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: var(--space-5);
  align-items: center;
}
.credibility-list { list-style: none; margin: 0; padding: 0; }
.credibility-list li {
  padding: 0.9rem 0 0.9rem 1.2rem;
  border-left: 2px solid var(--trichrome);
  margin-bottom: 0.9rem;
  font-size: 0.96rem;
  color: var(--ink-soft);
}
.credibility-visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--hema), var(--trichrome));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: 'Fraunces', serif;
  position: relative;
  overflow: hidden;
}
.credibility-visual .founder-big {
  font-size: 4.5rem;
}
.credibility-visual .cap {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1.2rem;
  background: rgba(10,10,15,0.35);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 860px) {
  .hero-grid, .grid-2, .founder-grid, .contact-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: 1fr 1fr; }
  nav.links { display: none; }
  .menu-toggle { display: flex; }
  .nav-cta { display: none; }
  .founder-mark { width: 120px; aspect-ratio: 1; }
  .hero-dark-grid, .credibility-grid { grid-template-columns: 1fr; }
  .lead-card .field-row { grid-template-columns: 1fr; }
  .solutions-visual { aspect-ratio: 16/10; }
}

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