/* Integra MedTech — site.css
   Layout: one 1120px column on a loose 12-col grid; generous vertical rhythm.
   Serif display for H1/H2, humanist sans for reading, mono for regulatory references (MD-14, MD-15). */
:root {
  --paper: #FFFFFF;
  --panel: #F3F5F7;
  --rule: #D9DCE0;
  --ink: #0A2A57;
  --muted: #4A5568;
  --accent: #13707D;
  --accent-ink: #FFFFFF;
  --accent-soft: #E3F0F0;
  --mark-bg: transparent;
  --band-bg: #0A2A57;
  --band-fg: #F3F5F7;
  --band-muted: #BCC8D6;
  --ph-bg: #FFF0B8;
  --ph-fg: #574300;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(56px, 8vw, 104px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1724; --panel: #142033; --rule: #273650; --ink: #E8EDF4; --muted: #A9B5C6;
    --accent: #6CC5C4; --accent-ink: #08201F; --accent-soft: #15303A; --mark-bg: #FFFFFF;
    --band-bg: #17284A; --band-fg: #EEF2F7; --band-muted: #B3C0D3;
    --ph-bg: #4A3C0C; --ph-fg: #FFE39A; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0E1724; --panel: #142033; --rule: #273650; --ink: #E8EDF4; --muted: #A9B5C6;
  --accent: #6CC5C4; --accent-ink: #08201F; --accent-soft: #15303A; --mark-bg: #FFFFFF;
  --band-bg: #17284A; --band-fg: #EEF2F7; --band-muted: #B3C0D3;
  --ph-bg: #4A3C0C; --ph-fg: #FFE39A; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 1.09375rem; line-height: 1.65;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

h1, h2, h3 { color: var(--ink); text-wrap: balance; margin: 0; }
h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(2.1rem, 1.35rem + 3vw, 3.35rem); line-height: 1.1; letter-spacing: -0.012em; }
h2 { font-family: var(--serif); font-weight: 600; font-size: clamp(1.55rem, 1.2rem + 1.4vw, 2.15rem); line-height: 1.2; letter-spacing: -0.008em; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.35; }
p { margin: 0; max-width: 65ch; }
.lede { font-size: 1.2rem; line-height: 1.55; color: var(--muted); max-width: 58ch; }
.muted { color: var(--muted); }
.small { font-size: .9rem; line-height: 1.55; }
a { color: var(--accent); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.eyebrow { font-family: var(--mono); font-size: .78rem; letter-spacing: .09em; text-transform: uppercase; color: var(--accent); font-weight: 500; }
.ref { font-family: var(--mono); font-size: .88em; font-weight: 500; white-space: nowrap; }
.ph { background: var(--ph-bg); color: var(--ph-fg); padding: 0 .28em; border-radius: 2px; font-style: normal; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
sup a { font-family: var(--mono); font-size: .72rem; text-decoration: none; padding-inline: 1px; }
.stack { display: grid; gap: 1rem; }
.stack-lg { display: grid; gap: 1.6rem; }

.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; top: 16px; z-index: 50; background: var(--paper); padding: .5rem .8rem; }

/* Header */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--paper); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.brand { display: inline-flex; align-items: baseline; gap: .45rem; text-decoration: none; color: var(--ink); }
.brand .wm { font-family: var(--serif); font-weight: 600; font-size: 1.4rem; letter-spacing: .005em; }
.brand { align-items: center; }
.brand .wm2 { font-family: var(--serif); font-weight: 600; font-size: 1.4rem; color: var(--accent); margin-left: -.2rem; }
.brand-mark { display: block; width: 41px; height: 46px; flex: none; background: var(--mark-bg); border-radius: 4px; padding: 3px; object-fit: contain; }
.tagline { font-size: .85rem; color: var(--muted); }
.nav-desktop { display: none; }
.nav-desktop ul, .menu ul { list-style: none; margin: 0; padding: 0; }
.nav-desktop ul { display: flex; align-items: center; gap: 1.6rem; }
.nav-desktop a, .menu a { color: var(--ink); text-decoration: none; font-size: .95rem; }
.nav-desktop a[aria-current="page"], .menu a[aria-current="page"] { color: var(--accent); text-decoration: underline; text-underline-offset: .4em; }
.nav-desktop a:hover { color: var(--accent); }
.menu summary { list-style: none; cursor: pointer; font-family: var(--mono); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--rule); padding: .45rem .75rem; border-radius: 2px; }
.menu summary::-webkit-details-marker { display: none; }
.menu[open] ul { position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--rule); padding: .5rem var(--gutter) 1.2rem; display: grid; gap: .1rem; }
.menu[open] li a { display: block; padding: .6rem 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 900px) { .nav-desktop { display: block; } .menu { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .78rem 1.2rem; border-radius: 2px; font-weight: 500; font-size: .98rem; text-decoration: none; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); line-height: 1.2; }
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--panel); filter: none; }
.btn-sm { padding: .5rem .85rem; font-size: .9rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }

/* Sections */
.section { padding-block: var(--section); }
.section.alt { background: var(--panel); }
.section + .section:not(.alt) { border-top: 1px solid var(--rule); }
.section-head { display: grid; gap: .8rem; margin-bottom: clamp(28px, 4vw, 48px); max-width: 760px; }
.page-head { padding-block: clamp(48px, 7vw, 88px) clamp(28px, 4vw, 48px); border-bottom: 1px solid var(--rule); }
.page-head .stack { max-width: 820px; }
.dated { font-family: var(--mono); font-size: .8rem; color: var(--muted); letter-spacing: .02em; }

/* Hero */
.hero { padding-block: clamp(48px, 7vw, 96px); }
.hero-grid { display: grid; gap: clamp(32px, 5vw, 64px); align-items: start; }
.hero-grid > * { min-width: 0; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 7fr 5fr; } }
.status-line { font-family: var(--mono); font-size: .82rem; color: var(--muted); border-top: 1px solid var(--rule); padding-top: .9rem; max-width: 60ch; }

/* Control ledger */
.ledger { border: 1px solid var(--rule); background: var(--panel); border-radius: 2px; }
.ledger-head { padding: .9rem 1.2rem; border-bottom: 1px solid var(--rule); display: flex; justify-content: space-between; gap: 1rem; }
.ledger dl { margin: 0; }
.ledger .row { display: grid; grid-template-columns: 1fr; gap: .15rem; padding: .9rem 1.2rem; border-bottom: 1px solid var(--rule); }
.ledger .row:last-child { border-bottom: 0; }
.ledger dt { font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.ledger dd { margin: 0; font-weight: 500; }
.ledger dd .who { color: var(--accent); }

/* Figures */
.figures { display: grid; gap: 0; border-top: 2px solid var(--ink); }
@media (min-width: 760px) { .figures { grid-template-columns: repeat(3, 1fr); } }
.figure { padding: 1.4rem 1.4rem 1.6rem 0; border-bottom: 1px solid var(--rule); display: grid; gap: .5rem; align-content: start; }
@media (min-width: 760px) { .figure { border-bottom: 0; padding-right: 2rem; } .figure + .figure { border-left: 1px solid var(--rule); padding-left: 1.6rem; } }
.figure .num { font-family: var(--serif); font-weight: 600; font-size: clamp(2.4rem, 1.8rem + 2vw, 3.2rem); line-height: 1; font-variant-numeric: tabular-nums lining-nums; letter-spacing: -.02em; }
.figure p { color: var(--muted); font-size: 1rem; }
.callout { margin-top: 2rem; padding: 1.1rem 1.3rem; background: var(--accent-soft); border-radius: 2px; max-width: 760px; }
.footnotes { margin-top: 2.2rem; padding-top: 1rem; border-top: 1px solid var(--rule); }
.footnotes ol { margin: .4rem 0 0; padding-left: 1.3rem; display: grid; gap: .3rem; }
.footnotes li { font-size: .85rem; line-height: 1.5; color: var(--muted); max-width: 90ch; }

/* Grids */
.grid-3 { display: grid; gap: clamp(24px, 3vw, 40px); }
@media (min-width: 860px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }
.grid-2 { display: grid; gap: clamp(24px, 3vw, 48px); }
@media (min-width: 860px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }
.grid-3 > *, .grid-2 > * { min-width: 0; }
.pillar { border-top: 2px solid var(--ink); padding-top: 1.1rem; display: grid; gap: .8rem; align-content: start; }
.dash { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.dash li { position: relative; padding-left: 1.2rem; }
.dash li::before { content: ""; position: absolute; left: 0; top: .82em; width: .6rem; height: 1px; background: var(--accent); }
.area { display: grid; gap: .55rem; align-content: start; padding-top: 1.1rem; border-top: 1px solid var(--rule); }
.area .eyebrow { color: var(--muted); }

/* Profile */
.profile { display: grid; gap: 0; border-top: 1px solid var(--rule); margin: 0; }
.profile div { display: grid; gap: .2rem; padding: .85rem 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 700px) { .profile div { grid-template-columns: 220px 1fr; gap: 1.5rem; } }
.profile dt { font-family: var(--mono); font-size: .8rem; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); padding-top: .2rem; }
.profile dd { margin: 0; }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; counter-reset: step; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.steps li { counter-increment: step; position: relative; padding: 1.2rem 1.2rem 1.2rem 0; border-top: 2px solid var(--rule); display: grid; gap: .45rem; align-content: start; min-width: 0; }
.steps li::before { content: "Step " counter(step); font-family: var(--mono); font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.steps li::after { content: ""; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.steps .t { font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.steps p { font-size: .97rem; color: var(--muted); }

/* Founder strip */
.founder { display: grid; gap: 1.6rem; align-items: center; }
@media (min-width: 760px) { .founder { grid-template-columns: 180px 1fr auto; gap: 2.4rem; } }
.photo-slot { aspect-ratio: 4 / 5; width: 100%; max-width: 180px; background: var(--panel); border: 1px dashed var(--rule); display: grid; place-items: center; text-align: center; padding: 1rem; font-family: var(--mono); font-size: .78rem; color: var(--muted); }

/* Tables */
.table-wrap { overflow-x: auto; border-top: 2px solid var(--ink); }
table { border-collapse: collapse; width: 100%; min-width: 640px; font-size: .97rem; }
th, td { text-align: left; vertical-align: top; padding: .85rem 1rem .85rem 0; border-bottom: 1px solid var(--rule); }
thead th { font-family: var(--mono); font-size: .76rem; letter-spacing: .07em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
tbody th { font-weight: 600; width: 22%; }
td.us { background: var(--accent-soft); padding-left: 1rem; }
thead th.us { padding-left: 1rem; color: var(--accent); }
caption { text-align: left; caption-side: bottom; padding-top: .8rem; font-size: .85rem; color: var(--muted); }

/* Diagram */
.diagram { overflow-x: auto; border: 1px solid var(--rule); border-radius: 2px; padding: clamp(12px, 2vw, 24px); background: var(--paper); }
.diagram svg { display: block; min-width: 660px; width: 100%; height: auto; }
.dg-box { fill: var(--paper); stroke: var(--ink); stroke-width: 1.25; }
.dg-box-us { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.5; }
.dg-line { stroke: var(--ink); stroke-width: 1.25; fill: none; }
.dg-line-alt { stroke: var(--accent); stroke-width: 1.25; fill: none; stroke-dasharray: 5 4; }
.dg-head { fill: var(--ink); }
.dg-head-alt { fill: var(--accent); }
.dg-t1 { font-family: var(--sans); font-size: 15px; font-weight: 600; fill: var(--ink); }
.dg-t2 { font-family: var(--mono); font-size: 11.5px; fill: var(--muted); letter-spacing: .02em; }
.dg-t3 { font-family: var(--sans); font-size: 13px; fill: var(--ink); }
.dg-lab { font-family: var(--mono); font-size: 11.5px; fill: var(--muted); }
.dg-lab-alt { font-family: var(--mono); font-size: 11.5px; fill: var(--accent); }

/* Regulatory flow */
.flow { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; counter-reset: fl; }
.flow li { counter-increment: fl; position: relative; padding: 0 0 1.4rem 2.6rem; display: grid; gap: .25rem; min-width: 0; }
.flow li::before { content: counter(fl); position: absolute; left: 0; top: 0; width: 1.75rem; height: 1.75rem; border: 1.25px solid var(--ink); border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: .78rem; background: var(--paper); z-index: 1; }
.flow li::after { content: ""; position: absolute; left: .87rem; top: 1.75rem; bottom: 0; width: 1.25px; background: var(--rule); }
.flow li:last-child::after { display: none; }
.flow li.key::before { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }
.flow .tag { font-family: var(--mono); font-size: .8rem; color: var(--accent); }
.flow p { font-size: .97rem; color: var(--muted); }
@media (min-width: 1000px) {
  .flow { grid-template-columns: repeat(7, 1fr); }
  .flow li { padding: 2.6rem 1rem 0 0; }
  .flow li::after { left: 1.75rem; right: 0; top: .87rem; bottom: auto; width: auto; height: 1.25px; }
}

/* FAQ */
.faq { border-top: 2px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; padding: 1.05rem 2.4rem 1.05rem 0; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: .3rem; top: .85rem; font-family: var(--mono); font-size: 1.2rem; color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 1.3rem; display: grid; gap: .7rem; max-width: 70ch; }

/* Commitments */
.commit { display: grid; gap: 0; counter-reset: c; list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--ink); }
.commit li { padding: 1rem 0; border-bottom: 1px solid var(--rule); display: grid; gap: .3rem; }

/* Prose (articles, legal) */
.prose { max-width: 68ch; display: grid; gap: 1.05rem; }
.prose h2 { font-size: clamp(1.35rem, 1.15rem + .8vw, 1.7rem); margin-top: 1.2rem; }
.prose h3 { margin-top: .6rem; }
.prose ul, .prose ol { margin: 0; padding-left: 1.3rem; display: grid; gap: .45rem; }
.byline { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; font-family: var(--mono); font-size: .82rem; color: var(--muted); }
.notice { font-size: .88rem; color: var(--muted); border-left: 2px solid var(--accent); padding: .2rem 0 .2rem .9rem; max-width: 70ch; }
.article-list { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.article-list article { padding: 1.5rem 0; border-bottom: 1px solid var(--rule); display: grid; gap: .55rem; }
.article-list h2 { font-size: clamp(1.3rem, 1.1rem + .8vw, 1.65rem); }
.article-list h2 a { color: var(--ink); text-decoration: none; }
.article-list h2 a:hover { color: var(--accent); }

/* Form */
.form { display: grid; gap: 1.1rem; }
@media (min-width: 720px) { .form { grid-template-columns: 1fr 1fr; } .form .full { grid-column: 1 / -1; } }
.field { display: grid; gap: .35rem; min-width: 0; }
.field label, .field legend { font-size: .92rem; font-weight: 600; }
.field .hint { font-size: .83rem; color: var(--muted); font-weight: 400; }
input[type="text"], input[type="email"], input[type="url"], select, textarea {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule); border-bottom-color: var(--muted); border-radius: 2px; padding: .7rem .8rem; width: 100%;
}
textarea { min-height: 140px; resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }
.check { display: flex; gap: .7rem; align-items: flex-start; font-size: .92rem; }
.check input { margin-top: .3rem; width: 1.05rem; height: 1.05rem; accent-color: var(--accent); flex: none; }
.hp { position: absolute; left: -9999px; }
.form-status { padding: .9rem 1.1rem; background: var(--accent-soft); border-radius: 2px; }
.contact-grid { display: grid; gap: clamp(32px, 5vw, 64px); }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 7fr 4fr; } }
.contact-grid > * { min-width: 0; }
.aside { display: grid; gap: 1.2rem; align-content: start; border-top: 2px solid var(--ink); padding-top: 1.1rem; }

/* CTA band */
.cta-band { background: var(--band-bg); color: var(--band-fg); padding-block: clamp(48px, 7vw, 80px); }
.cta-band .wrap { display: grid; gap: 1.4rem; }
@media (min-width: 860px) { .cta-band .wrap { grid-template-columns: 1fr auto; align-items: end; } }
.cta-band h2 { color: var(--band-fg); }
.cta-band p { color: var(--band-muted); }
.cta-band .btn { background: var(--band-fg); color: var(--band-bg); border-color: var(--band-fg); }

/* Footer */
.site-footer { background: var(--panel); border-top: 1px solid var(--rule); padding-block: 48px; font-size: .88rem; color: var(--muted); }
.site-footer .wrap { display: grid; gap: 2rem; }
@media (min-width: 860px) { .site-footer .wrap { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer h2 { font-family: var(--mono); font-size: .76rem; letter-spacing: .09em; text-transform: uppercase; color: var(--ink); font-weight: 500; margin-bottom: .6rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.site-footer a { color: var(--ink); }
.site-footer .legal-line { grid-column: 1 / -1; border-top: 1px solid var(--rule); padding-top: 1.2rem; display: grid; gap: .3rem; }

@media (prefers-reduced-motion: no-preference) {
  .hero h1, .hero .lede { animation: fade .5s ease-out both; }
  .hero .lede { animation-delay: .08s; }
  @keyframes fade { from { opacity: .4; transform: translateY(4px); } to { opacity: 1; transform: none; } }
}

@media print {
  .site-header, .cta-band, .menu, .nav-desktop, .skip, .site-footer ul { display: none !important; }
  body { font-size: 11pt; color: #000; background: #fff; }
  .section { padding-block: 16pt; }
  .diagram, .table-wrap { overflow: visible; }
  .flow { grid-template-columns: 1fr !important; }
  a { color: #000; }
}
@media (min-width: 760px) { .figures.two { grid-template-columns: repeat(2, 1fr); } }

.brand-logo { display: block; height: 40px; width: auto; background: var(--mark-bg); border-radius: 4px; padding: 0; }
:root[data-theme="dark"] .brand-logo { padding: 4px 8px; height: 48px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .brand-logo { padding: 4px 8px; height: 48px; } }
@media (min-width: 900px) { .steps.steps-4 { grid-template-columns: repeat(4, 1fr); } }

.contact-grid { max-width: 820px; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 1fr; } }