/* BiomedPortal — one stylesheet for all three pages.
   Duolingo-inspired pass (Aug 2026): rounded type, chunky "3D" buttons with a
   hard bottom edge, 2px-bordered cards that sit on a solid shadow, and a bright
   accent set. The brand teal stays the primary so the logo still belongs. */

:root {
  /* --- brand, brightened one stop toward the playful end ---------------- */
  --teal-900: #06403c;
  --teal-800: #0a5f58;
  --teal-700: #0f8a7d;
  --teal-600: #14b39f;
  --teal-500: #1ccdb5;
  --mint-300: #7defd9;

  /* the hard edge under every raised element (a darker shade of its face) */
  --teal-edge: #0b6f65;

  /* --- accent set: used for glyph tiles, pills and the FAQ marker ------- */
  --acc-blue:   #1cb0f6;
  --acc-blue-b: #1a91cc;
  --acc-gold:   #ffc800;
  --acc-gold-b: #e0a800;
  --acc-coral:  #ff6b5e;
  --acc-purple: #b06cf0;
  --acc-green:  #58cc02;

  --ink: #10312e;
  --body: #3d5654;
  --muted: #667f7d;
  --line: #dfe9e7;
  --line-strong: #cfe0dd;
  --surface: #ffffff;
  --surface-2: #f2faf8;
  --page: #ffffff;

  --radius: 20px;
  --radius-lg: 26px;
  --measure: 68ch;
  /* Rounded first — this is most of the "fun" before a single colour changes. */
  --sans: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont,
          "Segoe UI Variable Display", "Segoe UI", Roboto, "Helvetica Neue",
          Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #ebfaf6;
    --body: #bcd6d1;
    --muted: #92aeaa;
    --line: #1f3d39;
    --line-strong: #2b514c;
    --surface: #0f2321;
    --surface-2: #0b1c1a;
    --page: #061513;
    --teal-600: #2fd3ba;
    --teal-700: #23bda6;
    --teal-edge: #0c6459;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  color: var(--body);
  background: var(--page);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5.4vw, 3.5rem); font-weight: 800; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.55rem, 3.3vw, 2.1rem); font-weight: 800; margin-top: 2.4em; }
h3 { font-size: 1.14rem; font-weight: 750; margin-top: 2em; }
p { margin: 0 0 1.1em; }
a { color: var(--teal-700); font-weight: 600; text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--teal-600); }
strong { color: var(--ink); font-weight: 750; }
code { font-family: var(--mono); font-size: .88em; background: var(--surface-2);
       padding: .14em .42em; border-radius: 7px; }

.wrap { width: min(1080px, 100% - 2.5rem); margin-inline: auto; }
.prose { width: min(var(--measure), 100% - 2.5rem); margin-inline: auto; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--teal-600); }

/* skip link — the site is short but this costs nothing and helps screen readers */
.skip {
  position: absolute; left: -9999px; top: 0; background: var(--teal-700);
  color: #fff; padding: .7rem 1rem; border-radius: 0 0 14px 0; z-index: 20;
  font-weight: 750;
}
.skip:focus { left: 0; }

/* Visible, chunky focus ring everywhere — part of the look, not an add-on. */
:where(a, button, summary, .btn):focus-visible {
  outline: 3px solid var(--acc-blue); outline-offset: 3px; border-radius: 12px;
}

/* ---------------------------------------------------------------- header */

header.site {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--page) 90%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 2px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; gap: 1.4rem;
  min-height: 68px; padding-block: .55rem;
}
.logo { display: inline-flex; align-items: center; flex: 0 0 auto; }
.logo img { height: 30px; width: auto; display: block; }
.logo .on-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .logo .on-light { display: none; }
  .logo .on-dark { display: block; }
}
nav.site { margin-left: auto; display: flex; gap: .5rem; flex-wrap: nowrap; }
nav.site a {
  color: var(--muted); text-decoration: none; font-size: .95rem; font-weight: 750;
  white-space: nowrap; padding: .4rem .75rem; border-radius: 999px;
}
nav.site a:hover { color: var(--teal-700); background: color-mix(in srgb, var(--teal-600) 12%, transparent); }
nav.site a[aria-current="page"] { color: var(--teal-700); background: color-mix(in srgb, var(--teal-600) 14%, transparent); }

/* Below this the logo and three links stop fitting on one line, and letting
   them wrap turns the header into a four-line block. Give the nav its own row
   instead, and stop pinning it — two stuck rows eat a phone screen. */
@media (max-width: 620px) {
  header.site { position: static; }
  header.site .wrap { flex-wrap: wrap; gap: .1rem .35rem; min-height: 0; padding-block: .7rem .55rem; }
  nav.site { margin-left: 0; width: 100%; gap: .3rem; }
  nav.site a { font-size: .9rem; padding: .35rem .6rem; }
  .logo img { height: 27px; }
}

/* ---------------------------------------------------------------- hero */

.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 4rem); }
.hero .wrap { display: grid; gap: clamp(2rem, 6vw, 4.5rem); align-items: center;
              grid-template-columns: 1fr; }
@media (min-width: 900px) { .hero .wrap { grid-template-columns: 1.05fr .95fr; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .82rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase;
  color: var(--teal-800); background: color-mix(in srgb, var(--teal-500) 26%, transparent);
  border: 2px solid color-mix(in srgb, var(--teal-600) 42%, transparent);
  border-radius: 999px; padding: .34rem .85rem; margin-bottom: 1.2rem;
}
@media (prefers-color-scheme: dark) { .eyebrow { color: var(--mint-300); } }
.lede { font-size: clamp(1.08rem, 2vw, 1.3rem); color: var(--body); max-width: 34em; }

.cta-row { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.9rem; align-items: center; }

/* The chunky button: a solid face over a hard bottom edge that compresses on
   press. No blur, no gradient — the whole trick is the offset solid shadow. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: inherit; font-weight: 800; font-size: .96rem;
  letter-spacing: .01em;
  padding: .85rem 1.6rem; border-radius: 16px; text-decoration: none;
  border: 2px solid transparent;
  transition: transform .08s ease, box-shadow .08s ease, background .12s ease;
}
.btn-primary {
  background: var(--teal-600); color: #fff; border-color: var(--teal-600);
  box-shadow: 0 4px 0 var(--teal-edge);
}
.btn-primary:hover { background: var(--teal-500); border-color: var(--teal-500); color: #fff; }
.btn-primary:active { transform: translateY(4px); box-shadow: 0 0 0 var(--teal-edge); }
.btn-ghost {
  background: var(--surface); color: var(--teal-700);
  border-color: var(--line-strong); box-shadow: 0 4px 0 var(--line-strong);
}
.btn-ghost:hover { border-color: var(--teal-600); box-shadow: 0 4px 0 var(--teal-600); color: var(--teal-700); }
.btn-ghost:active { transform: translateY(4px); box-shadow: 0 0 0 var(--line-strong); }
.btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }
.cta-note { font-size: .88rem; color: var(--muted); margin: 1rem 0 0; font-weight: 600; }

/* ---------------------------------------------------------------- phone */

.phone-stage { display: flex; justify-content: center; }
.phone {
  width: min(310px, 78vw); aspect-ratio: 9 / 19.5;
  border-radius: 44px; padding: 11px;
  background: linear-gradient(160deg, #2c3a3a, #101a19 60%);
  box-shadow: 0 30px 70px -28px rgba(6, 64, 60, .55), 0 2px 6px rgba(0,0,0,.18);
  flex: 0 0 auto;
}
@media (prefers-color-scheme: dark) {
  /* The bezel is nearly the page colour in dark mode; give it an edge so the
     phone still reads as an object. */
  .phone { background: linear-gradient(160deg, #46595a, #1b2b2a 62%);
           box-shadow: 0 30px 70px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.07); }
}
.phone-screen {
  height: 100%; border-radius: 34px; overflow: hidden;
  background: #f2f7f6; color: #000; display: flex; flex-direction: column;
  font-size: 12px; line-height: 1.35; position: relative;
}
.phone-status {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 20px 2px; font-size: 11px; font-weight: 700; color: #000;
}
.phone-status .glyphs { display: inline-flex; align-items: center; gap: 5px; color: #000; }
.phone-status .glyphs svg { height: 9px; width: auto; display: block; }
.phone-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 15px 8px;
}
.phone-nav .title { font-size: 25px; font-weight: 800; letter-spacing: -.7px; }
.phone-nav .icons { display: flex; gap: 12px; color: #0f8a7d; }
.phone-nav .icons svg { width: 19px; height: 19px; display: block; }
.phone-search {
  margin: 0 14px 10px; background: rgba(118,118,128,.12); border-radius: 12px;
  padding: 6px 10px; color: #8a8a8e; font-size: 12px; font-weight: 600;
}
.phone-list { padding: 0 14px; display: flex; flex-direction: column; gap: 9px; overflow: hidden; }
.phone-card {
  background: #fff; border-radius: 15px; padding: 10px 12px;
  border: 1.5px solid #e6efed; box-shadow: 0 2px 0 #e6efed;
}
.phone-card .name { font-weight: 750; color: #000; font-size: 12.5px; letter-spacing: -.2px; }
.phone-card .sub { color: #6c757a; font-size: 11px; }
.phone-card .row { display: flex; align-items: center; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.pill {
  font-size: 9.5px; font-weight: 800; letter-spacing: .02em;
  padding: 2.5px 8px; border-radius: 999px; white-space: nowrap;
}
.pill-teal { background: rgba(20,179,159,.18); color: #0a5f58; }
.pill-amber { background: rgba(255,200,0,.28); color: #7a5600; }
.pill-grey { background: rgba(118,118,128,.14); color: #4b5457; }
.phone-tabbar {
  margin-top: auto; border-top: .5px solid rgba(0,0,0,.12);
  background: rgba(249,249,249,.94); padding: 9px 0 15px;
  display: flex; justify-content: center;
}
.scan-fab {
  display: inline-flex; align-items: center; gap: 7px;
  background: #14b39f; color: #fff; font-weight: 800; font-size: 12px;
  padding: 8px 20px; border-radius: 999px; box-shadow: 0 3px 0 #0b6f65;
}
.scan-fab svg { width: 14px; height: 14px; }
/* The list is taller than the screen on purpose — it should look cut off at the
   bottom the way a real scrolling list does, not stop with dead space. */
.phone-list { -webkit-mask-image: linear-gradient(to bottom, #000 82%, transparent 99%);
              mask-image: linear-gradient(to bottom, #000 82%, transparent 99%); }

/* ---------------------------------------------------------------- sections */

section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-head { max-width: 46ch; margin-bottom: 2.4rem; }
.section-head h2 { margin-top: 0; }
.section-head p { color: var(--muted); margin-bottom: 0; }

.band { background: var(--surface-2); border-block: 2px solid var(--line); }

.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(268px, 1fr)); }
.card {
  background: var(--surface); border: 2px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem 1.5rem 1.4rem;
  box-shadow: 0 4px 0 var(--line);
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--line-strong); border-color: var(--line-strong); }
.card h3 { margin: 0 0 .45rem; font-size: 1.06rem; font-weight: 800; }
.card p { margin: 0; font-size: .95rem; color: var(--muted); }

/* Rounded-square icon tiles, each a different accent — the cycle is what makes
   a row of otherwise identical cards feel playful. */
.card .glyph {
  width: 46px; height: 46px; border-radius: 15px; margin-bottom: 1.05rem;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--teal-600) 18%, transparent);
  color: var(--teal-700);
  border: 2px solid color-mix(in srgb, var(--teal-600) 30%, transparent);
}
.card .glyph svg { width: 22px; height: 22px; }
.grid .card:nth-child(4n+2) .glyph {
  background: color-mix(in srgb, var(--acc-blue) 18%, transparent);
  border-color: color-mix(in srgb, var(--acc-blue) 34%, transparent); color: var(--acc-blue-b);
}
.grid .card:nth-child(4n+3) .glyph {
  background: color-mix(in srgb, var(--acc-gold) 26%, transparent);
  border-color: color-mix(in srgb, var(--acc-gold) 46%, transparent); color: var(--acc-gold-b);
}
.grid .card:nth-child(4n+4) .glyph {
  background: color-mix(in srgb, var(--acc-purple) 18%, transparent);
  border-color: color-mix(in srgb, var(--acc-purple) 34%, transparent); color: var(--acc-purple);
}

/* the privacy claim table */
table.claims {
  width: 100%; border-collapse: separate; border-spacing: 0;
  margin: 1.5rem 0 1.7rem; font-size: .95rem;
  border: 2px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
table.claims th, table.claims td { text-align: left; padding: .8rem 1rem; border-bottom: 2px solid var(--line); vertical-align: top; }
table.claims tr:last-child th, table.claims tr:last-child td { border-bottom: 0; }
table.claims th { color: var(--ink); font-weight: 800; width: 42%; background: var(--surface-2); }
@media (max-width: 620px) {
  table.claims, table.claims tbody, table.claims tr, table.claims th, table.claims td { display: block; width: auto; }
  table.claims th { border-bottom: 0; padding-bottom: .1rem; background: transparent; }
  table.claims td { padding-top: 0; }
  table.claims tr { border-bottom: 2px solid var(--line); }
  table.claims tr:last-child { border-bottom: 0; }
}

.callout {
  border: 2px solid color-mix(in srgb, var(--teal-600) 40%, transparent);
  border-left-width: 8px;
  background: var(--surface-2);
  padding: 1.1rem 1.3rem; border-radius: 16px; margin: 1.7rem 0;
  box-shadow: 0 4px 0 color-mix(in srgb, var(--teal-600) 20%, transparent);
}
.callout p:last-child { margin-bottom: 0; }
.callout p:first-child { margin-top: 0; }

.faq { border-top: 0; }
.faq details {
  border: 2px solid var(--line); border-radius: 16px; margin-bottom: .8rem;
  background: var(--surface); overflow: hidden;
}
.faq details[open] { border-color: color-mix(in srgb, var(--teal-600) 45%, transparent); }
.faq summary {
  cursor: pointer; padding: 1.05rem 3rem 1.05rem 1.15rem; font-weight: 750;
  color: var(--ink); list-style: none; position: relative;
}
.faq summary:hover { background: var(--surface-2); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; display: grid; place-items: center;
  background: color-mix(in srgb, var(--teal-600) 16%, transparent);
  border-radius: 999px;
  font-size: 1.15rem; font-weight: 700; color: var(--teal-700); line-height: 1;
}
.faq details[open] summary::after { content: "−"; background: var(--teal-600); color: #fff; }
.faq .answer { padding: 0 1.15rem 1.15rem; color: var(--muted); font-size: .96rem; }
.faq .answer p:last-child { margin-bottom: 0; }

.page-head { padding: clamp(2.4rem, 5vw, 3.6rem) 0 0; }
.page-head .meta { color: var(--muted); font-size: .92rem; margin: 0; font-weight: 600; }
.page-head + section { padding-top: clamp(1.6rem, 3vw, 2.2rem); }
.prose > h2:first-child { margin-top: 0; }

@media (max-width: 480px) {
  .cta-row { flex-direction: column; align-items: stretch; }
  .cta-row .btn { justify-content: center; }
}

/* ---------------------------------------------------------------- footer */

footer.site {
  border-top: 2px solid var(--line); margin-top: clamp(3rem, 7vw, 5rem);
  padding: 2.6rem 0 3.2rem; font-size: .9rem; color: var(--muted);
}
footer.site .footer-top {
  display: flex; flex-wrap: wrap; gap: .8rem 2rem; align-items: baseline;
}
footer.site nav { display: flex; gap: 1.3rem; flex-wrap: wrap; margin-left: auto; }
footer.site a { color: var(--muted); text-decoration: none; font-weight: 700; }
footer.site a:hover { color: var(--teal-700); text-decoration: underline; }
footer.site .disclaimer { max-width: 74ch; margin: 1.4rem 0 0; font-size: .84rem; line-height: 1.6; }