/* Layout: one calm column, 1120px max, sections alternate white / cool paper bands; precise, clinical, brand blue→teal from the logo. Single light look by choice. */
:root {
  --blue: #1d5cb4;
  --blue-deep: #143f7d;
  --teal: #0f9f84;
  --teal-soft: #e3f5f0;
  --ink: #12304d;
  --muted: #566b80;
  --paper: #f4f8fb;
  --ice: #e9f1f9;
  --line: #d8e3ec;
  --white: #ffffff;
  --display: "Manrope", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --body: "Onest", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --w: 1120px;
  --r: 14px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body { margin: 0; background: var(--white); color: var(--ink); font: 400 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; text-wrap: balance; letter-spacing: -0.015em; }
h1 { font-size: clamp(36px, 4.6vw, 54px); font-weight: 800; }
h2 { font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; }
h3 { font-size: 20px; font-weight: 700; }
p { margin: 0; }
.accent { color: var(--blue); }
.wrap { max-width: var(--w); margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.band { padding-block: clamp(64px, 9vw, 112px); }
.band.paper { background: var(--paper); }
.label { font: 700 13px/1.3 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--teal); }
.lead { font-size: 20px; line-height: 1.5; color: var(--ink); }
.muted { color: var(--muted); }
.small { font-size: 14px; color: var(--muted); line-height: 1.5; }
.measure { max-width: 66ch; }
.sec-head { display: grid; gap: 16px; margin-bottom: 44px; max-width: 760px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; min-height: 50px; padding: 0 24px; border-radius: 999px; font: 700 16px/1 var(--display); text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: var(--blue-deep); }
.btn-ghost { background: transparent; color: var(--blue); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; }

/* Header */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--white); }
.header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header .wrap { display: flex; align-items: center; gap: 28px; min-height: 72px; }
.logo img { height: 34px; width: auto; }
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { color: var(--ink); text-decoration: none; font: 600 15px/1 var(--display); }
.nav a:hover { color: var(--blue); }
.header .btn { min-height: 42px; padding: 0 18px; font-size: 15px; }
.menu-btn { display: none; margin-left: auto; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); cursor: pointer; }
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); margin: 4px auto; }
.mobile-nav { border-top: 1px solid var(--line); background: var(--white); }
.mobile-nav .wrap { display: grid; gap: 4px; padding-block: 12px 20px; }
.mobile-nav a { padding: 12px 0; color: var(--ink); text-decoration: none; font: 600 17px/1 var(--display); border-bottom: 1px solid var(--line); }
.mobile-nav .btn { margin-top: 12px; justify-content: center; border-bottom: 0; color: var(--white); }

/* Hero */
.hero { padding-block: clamp(48px, 7vw, 88px) clamp(56px, 8vw, 96px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 64px); align-items: center; }
.hero-copy { display: grid; gap: 24px; }
.hero h1 .accent { display: block; }
.hero-desc { font-size: 19px; color: var(--muted); max-width: 52ch; }
.hero-mech { display: flex; gap: 14px; align-items: flex-start; font-size: 17px; font-weight: 500; max-width: 54ch; padding: 16px 18px; background: var(--teal-soft); border-radius: var(--r); }
.hero-mech svg { flex: none; margin-top: 3px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-photo { border-radius: 22px; overflow: hidden; aspect-ratio: 3 / 2.3; max-width: 100%; }
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.facts { margin-top: clamp(40px, 6vw, 64px); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.facts div { padding: 20px 20px 0 0; display: grid; gap: 4px; }
.facts div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.facts b { font: 800 22px/1.2 var(--display); color: var(--blue); font-variant-numeric: tabular-nums; }
.facts span { font-size: 15px; color: var(--muted); }

/* How it works */
.how-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.how-copy { display: grid; gap: 22px; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; }
.checks li { position: relative; padding: 14px 0 14px 34px; border-bottom: 1px solid var(--line); }
.checks li::before { content: ""; position: absolute; left: 0; top: 19px; width: 18px; height: 18px; border-radius: 50%; background: var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.3l2.6 2.5L13 6.5' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/18px no-repeat; }
.how-figure { display: grid; gap: 18px; }
.how-photo { background: var(--white); border: 1px solid var(--line); border-radius: 22px; padding: 24px; }
.how-photo img { margin: 0 auto; max-height: 420px; width: auto; }
.scale { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 18px 14px; }
.scale svg { width: 100%; height: auto; display: block; }
.scale figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }

/* Evidence */
.risks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 56px; }
.risk-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; display: grid; gap: 10px; align-content: start; text-decoration: none; color: inherit; transition: border-color .2s; }
.risk-card:hover { border-color: var(--blue); }
.risk-card .tag { font: 700 13px/1 var(--display); color: var(--teal); letter-spacing: .06em; text-transform: uppercase; }
.risk-card p { color: var(--muted); font-size: 16px; }
.risk { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 32px; padding-block: 44px; border-top: 1px solid var(--line); }
.risk-side { display: grid; gap: 8px; align-content: start; }
.risk-side .tag { font: 700 13px/1.3 var(--display); color: var(--teal); letter-spacing: .08em; text-transform: uppercase; }
.risk-body { display: grid; gap: 18px; min-width: 0; }
.stat { display: flex; gap: 20px; align-items: center; padding: 20px 24px; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.stat b { font: 800 44px/1 var(--display); color: var(--teal); font-variant-numeric: tabular-nums; flex: none; }
.stat small { display: block; font-size: 14px; color: var(--muted); margin-top: 4px; }
.stats-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ref { font-size: 13px; font-weight: 600; color: var(--blue); text-decoration: none; vertical-align: 2px; }
.ref:hover { text-decoration: underline; }
.callout { padding: 16px 20px; border-left: 3px solid var(--blue); background: var(--white); border-radius: 0 var(--r) var(--r) 0; font-size: 16px; }
details.more { border: 1px solid var(--line); border-radius: var(--r); background: var(--white); }
details.more summary { list-style: none; cursor: pointer; padding: 16px 20px; display: flex; justify-content: space-between; gap: 16px; font: 700 16px/1.3 var(--display); color: var(--blue); }
details.more summary::-webkit-details-marker { display: none; }
details.more summary::after { content: "+"; font-size: 22px; line-height: .9; transition: transform .2s; }
details.more[open] summary::after { transform: rotate(45deg); }
details.more .more-body { padding: 0 20px 20px; display: grid; gap: 12px; font-size: 16px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--white); }
table { width: 100%; border-collapse: collapse; font-size: 16px; min-width: 560px; }
caption { text-align: left; padding: 16px 20px 0; font: 700 17px/1.3 var(--display); }
th, td { text-align: left; vertical-align: top; padding: 14px 20px; border-bottom: 1px solid var(--line); }
thead th { font: 700 13px/1.3 var(--display); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
tbody th { font-weight: 700; width: 30%; }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
.causes { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.causes li { border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 14px; display: grid; gap: 2px; }
.causes b { font: 800 22px/1.1 var(--display); color: var(--blue); }
.takeaway { font: 700 19px/1.45 var(--display); }
.conclusion { margin-top: 12px; padding: 32px; border-radius: 22px; background: linear-gradient(120deg, var(--blue), #1a72a8 60%, var(--teal)); color: var(--white); display: grid; gap: 10px; font-size: 19px; }
.conclusion strong { font-weight: 800; }
.sources { margin-top: 28px; }
.sources ol { margin: 0; padding-left: 22px; display: grid; gap: 10px; }
.sources li { font-size: 15px; scroll-margin-top: 96px; }
.sources li:target { background: var(--teal-soft); border-radius: 6px; }
.sources a { font-weight: 600; }
.sources .note { font-size: 14px; color: var(--muted); }

/* Effect */
.effects { display: grid; gap: 0; border-top: 1px solid var(--line); }
.effect { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) minmax(0, 1fr); gap: 28px; padding-block: 26px; border-bottom: 1px solid var(--line); }
.effect h3 { font-size: 19px; }
.effect .risk-ref { display: block; margin-top: 6px; font-size: 14px; color: var(--teal); font-weight: 600; }
.effect .for { font-size: 15px; color: var(--muted); }
.effect .for b { display: block; font: 700 12px/1.3 var(--display); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.honest { margin-top: 28px; display: flex; gap: 14px; padding: 20px 22px; border-radius: var(--r); background: var(--paper); font-size: 16px; }
.honest svg { flex: none; margin-top: 2px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: s; }
.step { border: 1px solid var(--line); border-radius: var(--r); background: var(--white); padding: 18px; display: grid; gap: 10px; align-content: start; }
.step img { border-radius: 10px; background: var(--white); aspect-ratio: 1 / 0.93; object-fit: contain; width: 100%; }
.step .num { font: 800 14px/1 var(--display); color: var(--teal); letter-spacing: .06em; }
.step h3 { font-size: 18px; }
.step p { font-size: 15.5px; color: var(--ink); }
.step p + p { margin-top: -4px; }
.video-row { margin-top: 32px; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.video-box { border-radius: 18px; overflow: hidden; background: var(--ink); aspect-ratio: 16 / 9; max-width: 100%; }
.video-box video { width: 100%; height: 100%; display: block; object-fit: contain; background: #0d2238; }
.video-side { display: grid; gap: 16px; }

/* Clinic */
.clinic-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.clinic-photo { border-radius: 22px; overflow: hidden; }
.clinic-photo img { width: 100%; }
.clinic-photo figcaption { padding: 14px 4px 0; font: 600 16px/1.4 var(--display); color: var(--muted); }
.clinic-copy { display: grid; gap: 22px; }
.points { display: grid; gap: 18px; }
.point { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 14px; }
.point .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--ice); display: grid; place-items: center; }
.point h3 { font-size: 18px; margin-bottom: 4px; }
.point p { color: var(--muted); font-size: 16px; }
.memo { display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 18px 20px; border: 1px dashed var(--teal); border-radius: var(--r); background: var(--white); }
.memo p { font-size: 15px; color: var(--muted); max-width: 40ch; }
.memo b { display: block; color: var(--ink); font: 700 17px/1.3 var(--display); margin-bottom: 2px; }

/* Docs */
.docs-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.doc { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; display: grid; gap: 14px; }
.doc dl { margin: 0; display: grid; }
.doc dl div { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.doc dl div:last-child { border-bottom: 0; }
.doc dt { color: var(--muted); }
.doc dd { margin: 0; font-variant-numeric: tabular-nums; }
.doc .stamp { display: inline-flex; align-items: center; gap: 8px; font: 700 13px/1 var(--display); letter-spacing: .06em; text-transform: uppercase; color: var(--teal); }
.doc .stamp::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }
.doc p { font-size: 15.5px; }
.booklet { margin-top: 20px; display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 20px 24px; border-radius: var(--r); background: var(--ice); }
.booklet p { max-width: 56ch; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; padding: 22px 0; display: flex; justify-content: space-between; gap: 20px; font: 700 19px/1.35 var(--display); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--blue); font-size: 26px; line-height: .8; transition: transform .2s; flex: none; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list .answer { padding: 0 0 24px; color: var(--muted); max-width: 64ch; display: grid; gap: 12px; }

/* Contact */
.contact { background: var(--ink); color: var(--white); }
.contact .label { color: #7fd9c4; }
.contact h2 .accent { color: #8cc0ff; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.contact-copy { display: grid; gap: 20px; }
.contact-copy p { color: #c3d3e3; font-size: 18px; max-width: 44ch; }
.channels { display: grid; border-top: 1px solid rgba(255,255,255,.16); }
.channel { display: grid; grid-template-columns: 120px minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.16); color: var(--white); text-decoration: none; }
.channel span:first-child { color: #9fb5ca; font-size: 15px; }
.channel strong { font: 700 18px/1.3 var(--display); overflow-wrap: anywhere; }
.channel .go { color: #8cc0ff; font-size: 14px; font-weight: 600; white-space: nowrap; }
a.channel:hover strong { color: #8cc0ff; }
.channel button { background: transparent; border: 1px solid rgba(255,255,255,.3); color: var(--white); border-radius: 999px; padding: 8px 14px; font: 600 14px/1 var(--body); cursor: pointer; }
.channel button:hover { border-color: var(--white); }
.copy-status { font-size: 14px; color: #7fd9c4; min-height: 20px; }

/* Footer */
.footer { background: var(--paper); padding-block: 48px; border-top: 1px solid var(--line); }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }
.footer-top img { height: 30px; width: auto; }
.footer-cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 48px; }
.footer dl { margin: 0; }
.footer dl div { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14.5px; line-height: 1.5; }
.footer dt { color: var(--muted); }
.footer dd { margin: 0; }
.footer-bottom { margin-top: 28px; font-size: 13.5px; color: var(--muted); }

/* Responsive */
@media (max-width: 1020px) {
  .nav, .header .btn { display: none; }
  .menu-btn { display: block; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .risk { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .effect { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); }
  .effect .for { grid-column: 2; }
}
@media (max-width: 820px) {
  body { font-size: 16px; }
  .hero-grid, .how-grid, .clinic-grid, .docs-grid, .faq-grid, .contact-grid, .video-row { grid-template-columns: minmax(0, 1fr); }
  .hero-photo { order: -1; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts div:nth-child(3) { padding-left: 0; border-left: 0; }
  .facts div:nth-child(n+3) { border-top: 1px solid var(--line); margin-top: 20px; }
  .risks { grid-template-columns: minmax(0, 1fr); }
  .stats-2, .footer-cols { grid-template-columns: minmax(0, 1fr); }
  .causes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .effect { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .effect .for { grid-column: auto; }
  .lead { font-size: 18px; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .stat { flex-direction: column; align-items: flex-start; gap: 8px; }
  .doc dl div, .footer dl div { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .channel { grid-template-columns: minmax(0, 1fr) auto; }
  .channel span:first-child { grid-column: 1 / -1; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .conclusion { padding: 24px; font-size: 17px; }
}