/* TruSource — Independent Verification Platform
   Trust-first editorial system. White/gray surfaces, blue→violet gradient as accent only. */

:root {
  /* Brand gradient sampled from the shield mark */
  --blue: #0061FE;
  --indigo: #3D4EF6;
  --violet: #923BFC;
  --grad: linear-gradient(126deg, #0061FE 0%, #3D4EF6 48%, #923BFC 100%);
  --grad-soft: linear-gradient(126deg, rgba(0,97,254,.10) 0%, rgba(146,59,252,.10) 100%);

  /* Neutrals — predominantly white / gray */
  --ink: #0B1220;
  --ink-2: #2A3140;
  --slate: #5B6472;
  --slate-2: #828B99;
  --line: #E7E9EE;
  --line-2: #EFF1F5;
  --bg: #FFFFFF;
  --bg-2: #F7F8FA;
  --bg-3: #F2F4F8;
  --footer: #0B0F1A;

  --radius: 16px;
  --radius-sm: 11px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(11,18,32,.04), 0 1px 3px rgba(11,18,32,.05);
  --shadow: 0 8px 24px -12px rgba(11,18,32,.14), 0 2px 6px -2px rgba(11,18,32,.06);
  --shadow-lg: 0 28px 64px -28px rgba(11,18,32,.26);

  --maxw: 1140px;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --display: "Inter Tight", "Inter", -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: rgba(61,78,246,.16); }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--alt { background: var(--bg-2); }
.center { text-align: center; }

/* ---------- Type ---------- */
h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; color: var(--ink); overflow-wrap: break-word; }
.eyebrow {
  font-family: var(--sans);
  font-size: 12.5px; font-weight: 650; letter-spacing: .14em; text-transform: uppercase;
  color: var(--indigo); margin-bottom: 16px; display: inline-flex; align-items: center; gap: 9px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--grad); }
.eyebrow.center-eb { justify-content: center; }
h2 { font-size: clamp(30px, 4vw, 44px); }
.sec-head { max-width: 720px; }
.sec-head.center { margin-inline: auto; }
.sec-head p { color: var(--slate); font-size: 18px; margin-top: 16px; }
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 20px; color: var(--ink-2); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--sans); font-weight: 600; font-size: 15.5px; line-height: 1;
  padding: 14px 24px; border-radius: 999px; cursor: pointer; border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px -10px rgba(61,78,246,.6); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 16px 30px -12px rgba(61,78,246,.7); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn--ghost:hover { border-color: var(--slate-2); transform: translateY(-1px); }
.btn--lg { padding: 16px 30px; font-size: 16.5px; }
.btn--block { width: 100%; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__bar { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand img { height: 30px; width: auto; }
.brand__tag { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--slate-2); font-weight: 600; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { font-size: 15px; font-weight: 500; color: var(--ink-2); transition: color .15s; }
.nav__links a:hover { color: var(--indigo); }
.nav__cta { display: flex; align-items: center; gap: 14px; }
.nav__toggle { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 0 76px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 60% at 88% 8%, rgba(146,59,252,.10), transparent 60%),
    radial-gradient(54% 54% at 8% 14%, rgba(0,97,254,.10), transparent 60%);
}
.hero__grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 52px; align-items: center; }
.hero__grid > * { min-width: 0; }
.hero h1 { font-size: clamp(38px, 5.4vw, 62px); }
.hero p.lead { margin-top: 22px; max-width: 540px; }
.hero__cta { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero__trust { display: flex; align-items: center; gap: 12px; margin-top: 30px; color: var(--slate); font-size: 14.5px; }
.hero__trust svg { flex: none; }
.hero__art { display: flex; align-items: center; justify-content: center; position: relative; }
.hero__shield {
  width: min(360px, 80%); filter: drop-shadow(0 40px 60px rgba(61,78,246,.28));
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero__badge {
  position: absolute; bottom: 6%; right: 2%; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 12px 16px; box-shadow: var(--shadow); display: flex; align-items: center; gap: 11px;
}
.hero__badge b { font-family: var(--display); font-size: 15px; }
.hero__badge span { font-size: 12px; color: var(--slate); }
.hero__badge .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--grad); flex: none; }

/* ---------- Hero verification widget ---------- */
.vwidget {
  width: 100%; max-width: 466px; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow-lg); overflow: hidden;
}
.vw__top { display: flex; align-items: center; justify-content: space-between; padding: 13px 18px; border-bottom: 1px solid var(--line-2); }
.vw__brand { display: flex; align-items: center; gap: 8px; }
.vw__brand img { width: 22px; height: 22px; }
.vw__brand span { font-family: var(--display); font-weight: 700; font-size: 16px; }
.vw__brand sup { font-size: 8px; color: var(--slate-2); }
.vw__tag { font-size: 9.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--indigo); background: var(--grad-soft); border: 1px solid rgba(61,78,246,.22); padding: 4px 9px; border-radius: 999px; }
.vw__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 18px 18px 0; }
.vw__product h3 { font-family: var(--display); font-size: 23px; line-height: 1.05; }
.vw__product span { font-size: 12.5px; color: var(--slate); }
.vw__lot { display: inline-flex; align-items: center; gap: 7px; font-family: var(--sans); font-size: 12.5px; font-weight: 600; color: var(--ink-2); background: var(--bg-2); border: 1px solid var(--line); border-radius: 9px; padding: 8px 11px; cursor: pointer; white-space: nowrap; }
.vw__lot svg { color: var(--slate-2); }
.vw__intro { padding: 11px 18px 0; color: var(--slate); font-size: 13px; line-height: 1.5; }
.vw__pills { display: flex; gap: 7px; padding: 15px 18px 0; overflow-x: auto; scrollbar-width: none; }
.vw__pills::-webkit-scrollbar { display: none; }
.vw__pill { flex: none; border: 1px solid var(--line); background: #fff; color: var(--slate); font-family: var(--sans); font-weight: 600; font-size: 12.5px; padding: 8px 13px; border-radius: 999px; cursor: pointer; transition: all .15s; white-space: nowrap; }
.vw__pill:hover { border-color: var(--slate-2); color: var(--ink-2); }
.vw__pill[aria-selected="true"] { background: var(--grad); color: #fff; border-color: transparent; }
.vw__panel { margin: 14px 14px 0; border: 1px solid var(--line-2); border-radius: 14px; background: var(--bg-2); min-height: 196px; }
.vw__desc { padding: 14px 16px 2px; font-size: 12.5px; color: var(--slate); line-height: 1.5; }
.vw__rows { list-style: none; margin: 0; padding: 4px 16px 8px; }
.vw__row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line-2); }
.vw__row:last-child { border-bottom: 0; }
.vw__an { display: flex; align-items: center; gap: 9px; color: var(--ink-2); font-weight: 500; font-size: 13.5px; }
.vw__an svg { flex: none; color: #16A34A; }
.vw__val { color: var(--slate); font-size: 13px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.vw__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px 16px; }
.vw__lastted { display: block; font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--slate-2); }
.vw__by { font-size: 12.5px; color: var(--ink-2); margin-top: 3px; }
.vw__by b { font-weight: 650; }
.vw__iso { text-align: right; flex: none; }
.vw__iso span { font-family: var(--display); font-weight: 700; font-size: 14px; color: var(--ink); }
.vw__iso span b { font-weight: 800; font-size: 15px; }
.vw__iso small { display: block; font-size: 9px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--slate); margin-top: 2px; }

/* ---------- Marquee strip ---------- */
.strip { border-block: 1px solid var(--line); background: var(--bg-2); }
.strip__inner { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; padding: 22px 0; }
.strip__item { display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 14.5px; font-weight: 500; }
.strip__item svg { color: var(--indigo); flex: none; }

/* ---------- Problem list ---------- */
.problem__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 40px; }
.problem__item {
  display: flex; align-items: flex-start; gap: 13px; padding: 18px 20px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.problem__item .x { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--bg-3); color: var(--slate); display: grid; place-items: center; margin-top: 1px; }
.problem__item span { font-size: 15.5px; color: var(--ink-2); font-weight: 500; }

/* ---------- Feature grid (What We Are) ---------- */
.feat__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.feat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: transform .18s ease, box-shadow .2s ease, border-color .2s;
}
.feat:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--line-2); }
.feat__ic { width: 44px; height: 44px; border-radius: 12px; background: var(--grad-soft); display: grid; place-items: center; color: var(--indigo); margin-bottom: 16px; }
.feat h3 { font-size: 18px; margin-bottom: 7px; }
.feat p { font-size: 14.5px; color: var(--slate); line-height: 1.55; }
.notwe { margin-top: 34px; text-align: center; }
.notwe span { display: inline-block; padding: 12px 22px; border-radius: 999px; background: var(--bg-3); color: var(--slate); font-size: 14.5px; font-weight: 500; }

/* ---------- Test cards ---------- */
.tests__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 44px; }
.test {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px 22px; overflow: hidden; transition: transform .18s, box-shadow .2s, border-color .2s;
}
.test::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--grad); opacity: 0; transition: opacity .2s; }
.test:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.test:hover::before { opacity: 1; }
.test__no { font-family: var(--display); font-size: 13px; font-weight: 700; color: var(--slate-2); letter-spacing: .04em; }
.test h3 { font-size: 17.5px; margin: 8px 0 8px; }
.test p { font-size: 14px; color: var(--slate); line-height: 1.55; }

/* ---------- Standards ---------- */
.std { display: grid; grid-template-columns: .9fr 1.1fr; gap: 52px; align-items: center; }
.std__seal {
  position: relative; width: min(300px, 78%); aspect-ratio: 1; margin-inline: auto; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; text-align: center;
  background: linear-gradient(#fff, #fff) padding-box, var(--grad) border-box;
  border: 3px solid transparent;
  box-shadow: var(--shadow-lg);
}
.std__seal::before {
  content: ""; position: absolute; inset: 13px; border-radius: 50%; border: 1px solid var(--line);
}
.std__seal img.std__seal-mark { width: 46px; height: auto; margin-bottom: 6px; filter: drop-shadow(0 6px 12px rgba(61,78,246,.25)); }
.std__seal-iso { font-family: var(--display); font-weight: 800; font-size: 30px; letter-spacing: -0.01em; color: var(--ink); line-height: 1; }
.std__seal-sub { font-size: 10.5px; font-weight: 650; letter-spacing: .16em; text-transform: uppercase; color: var(--slate); max-width: 65%; line-height: 1.45; }
.std__list { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 14px; }
.std__list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: var(--ink-2); }
.std__list svg { flex: none; color: var(--indigo); margin-top: 3px; }
.std__list b { font-weight: 650; color: var(--ink); }

/* ---------- Dr. Dan ---------- */
.dan { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
.dan__photo {
  aspect-ratio: 4/5; border-radius: var(--radius-lg); background: var(--bg-3);
  border: 1px solid var(--line); display: grid; place-items: center; position: relative; overflow: hidden;
  box-shadow: var(--shadow);
}
.dan__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; }
.dan__name { font-family: var(--display); font-size: 26px; font-weight: 700; }
.dan__title { color: var(--indigo); font-weight: 600; font-size: 15px; margin-top: 4px; }
.dan__quote { font-family: var(--serif); font-size: 21px; line-height: 1.5; color: var(--ink); font-style: italic; margin: 22px 0 22px; padding-left: 20px; border-left: 3px solid; border-image: var(--grad) 1; }
.dan__bio p { color: var(--slate); font-size: 15.5px; margin-bottom: 14px; line-height: 1.65; }
.dan__creds { list-style: none; padding: 0; margin: 20px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; }
.dan__creds li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink-2); }
.dan__creds svg { flex: none; color: var(--indigo); margin-top: 3px; }
.dan__cite { font-size: 12px; color: var(--slate-2); margin-top: 22px; line-height: 1.5; }
details.dan__more { margin-top: 8px; }
details.dan__more summary { cursor: pointer; color: var(--indigo); font-weight: 600; font-size: 14.5px; list-style: none; display: inline-flex; align-items: center; gap: 6px; }
details.dan__more summary::-webkit-details-marker { display: none; }
details.dan__more[open] summary .chev { transform: rotate(180deg); }
details.dan__more .chev { transition: transform .2s; }

/* ---------- Get involved ---------- */
.paths { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
.path {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; cursor: pointer; transition: transform .18s, box-shadow .2s, border-color .2s; text-align: left;
}
.path:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--indigo); }
.path__ic { width: 46px; height: 46px; border-radius: 12px; background: var(--grad); display: grid; place-items: center; color: #fff; margin-bottom: 18px; }
.path h3 { font-size: 20px; margin-bottom: 9px; }
.path p { font-size: 14.5px; color: var(--slate); line-height: 1.55; margin-bottom: 16px; }
.path__link { font-weight: 600; font-size: 14.5px; color: var(--indigo); display: inline-flex; align-items: center; gap: 7px; }
.path:hover .path__link svg { transform: translateX(3px); }
.path__link svg { transition: transform .2s; }

/* ---------- Form ---------- */
.form-card {
  max-width: 720px; margin: 48px auto 0; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-lg);
}
.roletabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; background: var(--bg-3); padding: 6px; border-radius: 13px; margin-bottom: 28px; }
.roletab {
  border: none; background: transparent; padding: 12px 8px; border-radius: 9px; cursor: pointer;
  font-family: var(--sans); font-weight: 600; font-size: 14.5px; color: var(--slate); transition: all .18s; text-align: center;
}
.roletab[aria-selected="true"] { background: #fff; color: var(--ink); box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.field label .req { color: var(--violet); }
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: 15.5px; color: var(--ink); background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 11px; padding: 13px 15px; transition: border-color .15s, box-shadow .15s, background .15s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 92px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--indigo); background: #fff; box-shadow: 0 0 0 3px rgba(61,78,246,.12);
}
.form-foot { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; align-items: center; }
.form-note { font-size: 13px; color: var(--slate-2); text-align: center; }
.form-msg { display: none; padding: 14px 18px; border-radius: 11px; font-size: 14.5px; font-weight: 500; width: 100%; text-align: center; }
.form-msg.ok { display: block; background: rgba(0,97,254,.07); color: var(--blue); border: 1px solid rgba(0,97,254,.2); }
.form-msg.err { display: block; background: #FEF2F2; color: #B42318; border: 1px solid #FECDCA; }
.form-success { display: none; text-align: center; padding: 18px 0; }
.form-success.show { display: block; }
.form-success .check { width: 64px; height: 64px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; margin: 0 auto 18px; color: #fff; }
.form-success h3 { font-size: 23px; margin-bottom: 8px; }
.form-success p { color: var(--slate); }

/* ---------- Footer ---------- */
.footer { background: var(--footer); color: #C7CDD9; padding: 64px 0 30px; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer__brand .fs { width: 34px; height: 34px; }
.footer__brand .fw { font-family: var(--display); font-weight: 700; font-size: 22px; color: #fff; }
.footer__brand .fw sup { font-size: 11px; color: var(--slate-2); }
.footer__role { font-size: 15px; max-width: 460px; line-height: 1.6; color: #AEB6C4; }
.footer__contact { font-size: 14.5px; }
.footer__contact h4 { color: #fff; font-family: var(--display); font-size: 14px; letter-spacing: .04em; margin-bottom: 14px; }
.footer__contact a { color: #C7CDD9; display: inline-flex; align-items: center; gap: 9px; }
.footer__contact a:hover { color: #fff; }
.footer__disc { padding-top: 26px; font-size: 12.5px; color: #828B99; line-height: 1.6; max-width: 900px; }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 22px; flex-wrap: wrap; font-size: 12.5px; color: #828B99; }

/* ---------- Overview page ---------- */
.ov-hero { padding: 56px 0 34px; text-align: center; }
.ov-hero img.sh { width: 84px; margin: 0 auto 20px; }
.ov-hero h1 { font-size: clamp(30px, 5vw, 44px); }
.ov-hero p { color: var(--slate); max-width: 640px; margin: 16px auto 0; font-size: 18px; }
.ov-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; padding-bottom: 30px; }
.ov-block h2 { font-size: 22px; margin-bottom: 14px; }
.ov-block + .ov-block { margin-top: 30px; }
.ov-tests { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.ov-tests li { display: flex; gap: 9px; font-size: 14.5px; color: var(--ink-2); align-items: flex-start; }
.ov-tests svg { flex: none; color: var(--indigo); margin-top: 3px; }
.ov-why { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.ov-why li { display: flex; gap: 9px; font-size: 14.5px; color: var(--ink-2); }
.ov-why svg { flex: none; color: var(--slate); margin-top: 3px; }
.qr-card { position: sticky; top: 90px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; text-align: center; box-shadow: var(--shadow); }
.qr-card .qrbox { width: 200px; height: 200px; margin: 0 auto 18px; padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.qr-card .qrbox img, .qr-card .qrbox svg { width: 100%; height: 100%; }
.qr-card h3 { font-size: 18px; margin-bottom: 6px; }
.qr-card p { font-size: 14px; color: var(--slate); margin-bottom: 18px; }
.qr-card .url { font-family: var(--display); font-weight: 600; color: var(--indigo); font-size: 15px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__art { order: 0; }
  .hero__shield { width: 220px; }
  .feat__grid, .tests__grid { grid-template-columns: 1fr 1fr; }
  .std, .dan, .ov-grid { grid-template-columns: 1fr; gap: 32px; }
  .dan__photo { max-width: 320px; }
  .paths { grid-template-columns: 1fr; }
  .dan__creds, .ov-tests { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .qr-card { position: static; max-width: 340px; margin-inline: auto; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 64px 0; }
  .nav__links { display: none; }
  .nav__toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 11px; background: #fff; cursor: pointer; }
  .nav.open .nav__links { display: flex; position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; background: #fff; border-bottom: 1px solid var(--line); padding: 18px 24px; gap: 18px; }
  .nav__cta .btn { display: none; }
  .problem__grid, .feat__grid, .tests__grid, .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 26px 20px; }
  .hero__cta .btn { flex: 1; }
  .hero__badge { display: none; }
  .hero h1 { font-size: 33px; line-height: 1.12; }
  .hero { padding: 48px 0 56px; }
}
@media (prefers-reduced-motion: reduce) { .hero__shield { animation: none; } .reveal { transition: none; opacity: 1; transform: none; } }