/* =========================================================================
   Dr Rahul Gupta, Neurosurgeon — the design system.
   Calm before clever: people arrive here with a scan they are frightened of.
   Navy and paper carry the page; the one accent is the teal of the
   patient-specific skull implants he plans, used for action and emphasis only.
   ========================================================================= */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --ink:#0B1526; --ink-2:#111F37; --ink-3:#1A2B48;
  --paper:#F6F5F1; --mist:#ECF0F2; --line:#DCE2E7; --line-dark:rgba(255,255,255,.12);
  --teal:#0A7C86; --teal-2:#2BB8C4; --teal-soft:#D5EEF0;
  --body:#46505E; --faint:#7A8492; --wa:#1EA95A; --star:#E8A93A;
  --max:1240px; --gut:clamp(20px,5vw,60px);
  --r:14px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,system-ui,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img,video{max-width:100%;display:block}
a{color:var(--teal)}
h1,h2,h3,h4{margin:0;font-family:Fraunces,Georgia,serif;font-weight:400;line-height:1.08;letter-spacing:-.015em;font-optical-sizing:auto}
h1{font-size:clamp(2.4rem,5.6vw,4.3rem);font-weight:300}
h2{font-size:clamp(1.95rem,4.2vw,3.2rem);font-weight:300}
h3{font-size:clamp(1.2rem,1.8vw,1.45rem)}
h1 em,h2 em{font-style:italic;color:var(--teal)}
.on-dark h1 em,.on-dark h2 em{color:var(--teal-2)}
p{margin:0 0 1.05em}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--gut)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.72rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--teal)}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.on-dark .eyebrow{color:var(--teal-2)}
.lede{font-size:clamp(1.05rem,1.5vw,1.2rem);color:var(--body);max-width:38em}
.on-dark{background:var(--ink);color:#fff}
.on-dark p,.on-dark .lede{color:rgba(255,255,255,.74)}
.sec{padding:clamp(64px,8.5vw,124px) 0}
.sec.tight{padding:clamp(44px,6vw,80px) 0}
.mist{background:var(--mist)}
.center{text-align:center}
.center .lede{margin-inline:auto}

/* buttons ---------------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;border-radius:999px;font-weight:600;font-size:.95rem;padding:15px 26px;min-height:52px;border:1px solid transparent;transition:background-color .2s,color .2s,border-color .2s,transform .2s}
.btn:active{transform:translateY(1px)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:#086a73}
.on-dark .btn-teal{background:var(--teal-2);color:var(--ink)}
.on-dark .btn-teal:hover{background:#5fcdd6}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#178c4a}
.btn-line{color:var(--ink);border-color:var(--line);background:transparent}
.btn-line:hover{border-color:var(--ink)}
.on-dark .btn-line{color:#fff;border-color:rgba(255,255,255,.28)}
.on-dark .btn-line:hover{border-color:#fff}
.btn svg{width:18px;height:18px;flex:none}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* utility + header -------------------------------------------------------- */
.utility{background:var(--ink);color:rgba(255,255,255,.72);font-size:.8rem}
.utility .wrap{display:flex;gap:14px;align-items:center;min-height:38px;flex-wrap:wrap}
.utility .star{color:var(--star)}
.utility .right{margin-left:auto;display:flex;gap:14px}
.utility a{color:#fff;text-decoration:none}
.utility .sep{opacity:.35}
header.site{position:sticky;top:0;z-index:40;background:rgba(246,245,241,.92);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);line-height:1.15}
.brand b{font-family:Fraunces,Georgia,serif;font-weight:500;font-size:1.32rem;letter-spacing:-.01em}
.brand span{font-size:.68rem;letter-spacing:.17em;text-transform:uppercase;color:var(--faint);font-weight:600}
.on-dark .brand,.on-dark .brand b{color:#fff}
nav.main{display:flex;gap:24px;margin-left:auto}
nav.main a{color:var(--ink);text-decoration:none;font-size:.92rem;font-weight:500;padding:6px 0;border-bottom:1px solid transparent}
nav.main a:hover,nav.main a[aria-current]{border-color:var(--teal);color:var(--teal)}
.head-cta{display:flex;gap:10px}
.head-cta .btn{min-height:44px;padding:10px 20px;font-size:.88rem}
.burger{display:none;margin-left:auto;width:46px;height:46px;border:1px solid var(--line);background:transparent;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.burger span{width:18px;height:1.5px;background:var(--ink)}
.sheet{position:fixed;inset:112px 0 0;z-index:39;background:var(--paper);padding:20px var(--gut) 120px;overflow:auto}
.sheet nav{display:flex;flex-direction:column}
.sheet nav a{font-family:Fraunces,Georgia,serif;font-size:1.6rem;color:var(--ink);text-decoration:none;padding:12px 0;border-bottom:1px solid var(--line)}
.sheet-cta{display:grid;gap:10px;margin-top:26px}

/* hero -------------------------------------------------------------------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 70% at 85% 30%,rgba(43,184,196,.16),transparent 70%),radial-gradient(40% 50% at 10% 100%,rgba(43,184,196,.08),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,70px);align-items:end;padding-top:clamp(48px,7vw,96px)}
.hero-copy{padding-bottom:clamp(48px,7vw,96px)}
.hero h1{margin:22px 0 22px}
.hero .lede{color:rgba(255,255,255,.76)}
.hero-media{position:relative;align-self:end}
.hero-media img{width:100%;height:auto;aspect-ratio:764/1024;object-fit:cover;border-radius:220px 220px 0 0;background:#C9CED4}
.hero-badge{position:absolute;left:-28px;bottom:42px;background:#fff;color:var(--ink);border-radius:16px;padding:14px 18px;box-shadow:0 18px 50px rgba(0,0,0,.28);display:flex;gap:12px;align-items:center;max-width:260px}
.hero-badge b{font-family:Fraunces,Georgia,serif;font-size:1.9rem;font-weight:500;line-height:1}
.hero-badge small{display:block;font-size:.78rem;color:var(--body);line-height:1.35}
.hero-badge .stars{color:var(--star);font-size:.85rem;letter-spacing:2px}
.creds{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.creds span{font-size:.78rem;font-weight:600;padding:8px 14px;border:1px solid rgba(255,255,255,.18);border-radius:999px;color:rgba(255,255,255,.86)}

/* page hero (inner pages) --------------------------------------------------- */
.phero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 80% at 90% 0%,rgba(43,184,196,.15),transparent 70%);pointer-events:none}
.phero .wrap{position:relative;padding-top:clamp(44px,6vw,84px);padding-bottom:clamp(44px,6vw,84px)}
.phero h1{font-size:clamp(2.2rem,5vw,3.9rem);margin:18px 0 18px;max-width:16em}
.phero .lede{color:rgba(255,255,255,.76)}
.crumbs{font-size:.8rem;color:rgba(255,255,255,.55);margin-bottom:6px}
.crumbs a{color:rgba(255,255,255,.75);text-decoration:none}
.crumbs a:hover{color:#fff}

/* institutions strip ------------------------------------------------------- */
.inst{border-bottom:1px solid var(--line);background:#fff}
.inst .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.inst .wrap>div{padding:26px 22px;border-left:1px solid var(--line)}
.inst .wrap>div:first-child{border-left:0;padding-left:0}
.inst b{display:block;font-family:Fraunces,Georgia,serif;font-weight:500;font-size:1.08rem;line-height:1.25}
.inst span{font-size:.8rem;color:var(--faint)}

/* section heads ------------------------------------------------------------ */
.head{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,5vw,70px);align-items:end;margin-bottom:clamp(36px,5vw,60px)}
.head h2{margin-top:16px}
.head p{margin:0;color:var(--body)}
.on-dark .head p{color:rgba(255,255,255,.7)}
.head.solo{grid-template-columns:1fr;max-width:46em}

/* condition cards ------------------------------------------------------------ */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink);transition:border-color .2s,transform .2s,box-shadow .2s}
a.card:hover{border-color:var(--teal);transform:translateY(-3px);box-shadow:0 16px 40px rgba(11,21,38,.08)}
.card .ico{width:44px;height:44px;border-radius:12px;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;margin-bottom:6px}
.card .ico svg{width:24px;height:24px}
.card p{color:var(--body);font-size:.95rem;margin:0}
.card ul{margin:4px 0 0;padding:0;list-style:none;font-size:.88rem;color:var(--body)}
.card ul li{padding:5px 0;border-top:1px dashed var(--line)}
.card .more{margin-top:auto;padding-top:12px;font-weight:600;font-size:.88rem;color:var(--teal)}
.on-dark .card{background:var(--ink-2);border-color:var(--line-dark);color:#fff}
.on-dark .card p,.on-dark .card ul{color:rgba(255,255,255,.7)}
.on-dark .card ul li{border-color:var(--line-dark)}

/* symptoms checker --------------------------------------------------------- */
.signs{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-dark)}
.signs div{padding:24px 24px 24px 0;border-bottom:1px solid var(--line-dark)}
.signs b{display:block;font-family:Fraunces,Georgia,serif;font-weight:400;font-size:1.25rem;color:#fff;margin-bottom:4px}
.signs span{font-size:.92rem;color:rgba(255,255,255,.66)}
.urgent{margin-top:34px;padding:22px 26px;border-radius:var(--r);background:rgba(232,169,58,.1);border:1px solid rgba(232,169,58,.35);color:#fff;font-size:.95rem}
.urgent b{color:var(--star)}

/* steps ---------------------------------------------------------------------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps li{list-style:none;counter-increment:s;padding:26px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:Fraunces,Georgia,serif;font-size:2.2rem;color:var(--teal);display:block;line-height:1;margin-bottom:14px}
.steps b{display:block;font-size:1.02rem;margin-bottom:6px}
.steps p{font-size:.93rem;color:var(--body);margin:0}
ol.steps{padding:0;margin:0}

/* split ------------------------------------------------------------------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center}
.split.wide-l{grid-template-columns:1.15fr .85fr}
.split img{width:100%;border-radius:var(--r);object-fit:cover}
.ticks{list-style:none;padding:0;margin:20px 0 0}
.ticks li{position:relative;padding:10px 0 10px 32px;border-top:1px solid var(--line);color:var(--body)}
.ticks li::before{content:"";position:absolute;left:4px;top:18px;width:14px;height:8px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg)}
.on-dark .ticks li{border-color:var(--line-dark);color:rgba(255,255,255,.76)}
.on-dark .ticks li::before{border-color:var(--teal-2)}

/* timeline ------------------------------------------------------------------ */
.timeline{position:relative;display:grid;gap:0;margin:0;padding:0;list-style:none}
.timeline li{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:22px 0;border-top:1px solid var(--line)}
.timeline li:last-child{border-bottom:1px solid var(--line)}
.timeline .where{font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);padding-top:5px}
.timeline b{display:block;font-family:Fraunces,Georgia,serif;font-weight:400;font-size:1.3rem;line-height:1.25}
.timeline span{color:var(--body);font-size:.94rem}

/* photo mosaic --------------------------------------------------------------- */
.mosaic{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:clamp(110px,13vw,170px);gap:14px}
.mosaic figure{margin:0;position:relative;overflow:hidden;border-radius:var(--r);background:var(--ink-2)}
.mosaic img{width:100%;height:100%;object-fit:cover}
.mosaic figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 14px;font-size:.82rem;color:#fff;background:linear-gradient(transparent,rgba(11,21,38,.85))}
.mosaic .a{grid-column:span 5;grid-row:span 3}
.mosaic .b{grid-column:span 7;grid-row:span 2}
.mosaic .c{grid-column:span 4;grid-row:span 2}
.mosaic .d{grid-column:span 3;grid-row:span 2}
.mosaic .e{grid-column:span 5;grid-row:span 1}

/* video ---------------------------------------------------------------------- */
.video-split{display:grid;grid-template-columns:.62fr 1fr;gap:clamp(30px,5vw,80px);align-items:center}
.reel{position:relative;margin:0;border-radius:22px;overflow:hidden;background:#000;aspect-ratio:9/16;max-width:380px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.reel video{width:100%;height:100%;object-fit:cover}
.reel-play{position:absolute;inset:0;border:0;background:linear-gradient(transparent 55%,rgba(0,0,0,.55));cursor:pointer;display:grid;place-items:center}
.reel-play span{width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.94);display:grid;place-items:center;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.reel-play span::before{content:"";margin-left:6px;border-left:22px solid var(--ink);border-top:13px solid transparent;border-bottom:13px solid transparent}
.reel.playing .reel-play{display:none}
.reel .tag{position:absolute;left:14px;top:14px;font-size:.72rem;font-weight:600;padding:6px 10px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;pointer-events:none}
.reel.playing .tag{display:none}

/* reviews -------------------------------------------------------------------- */
.score{display:flex;align-items:center;gap:18px;margin-top:22px}
.score b{font-family:Fraunces,Georgia,serif;font-size:3.4rem;font-weight:400;line-height:1}
.score .stars{color:var(--star);letter-spacing:3px}
.score small{display:block;color:var(--body);font-size:.88rem}
.reviews{columns:3 300px;column-gap:18px}
.review{break-inside:avoid;margin:0 0 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.review .stars{color:var(--star);letter-spacing:2px;font-size:.9rem}
.review p{margin:12px 0 16px;color:var(--ink);font-size:.98rem}
.review footer{font-size:.84rem;color:var(--faint)}
.review footer strong{display:block;color:var(--ink);font-weight:600}

/* research ------------------------------------------------------------------- */
.pubs{list-style:none;margin:0;padding:0}
.pubs li{display:grid;grid-template-columns:90px 1fr;gap:20px;padding:20px 0;border-top:1px solid var(--line-dark)}
.pubs li:last-child{border-bottom:1px solid var(--line-dark)}
.pubs .yr{font-family:Fraunces,Georgia,serif;font-size:1.4rem;color:var(--teal-2)}
.pubs b{display:block;font-weight:500;color:#fff;font-size:1.02rem;line-height:1.45}
.pubs span{font-size:.86rem;color:rgba(255,255,255,.58)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chips span{font-size:.82rem;padding:8px 14px;border-radius:999px;background:var(--teal-soft);color:#075a61;font-weight:600}
.on-dark .chips span{background:rgba(43,184,196,.14);color:var(--teal-2)}

/* places --------------------------------------------------------------------- */
.places{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.place{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px;display:flex;flex-direction:column}
.place h3{margin:12px 0 10px}
.place p{color:var(--body);margin:0 0 14px}
.place .hrs{display:grid;grid-template-columns:auto 1fr;gap:4px 18px;font-size:.92rem;margin:4px 0 20px}
.place .hrs dt{color:var(--faint)}
.place .hrs dd{margin:0;font-weight:500}
.place .btns{margin-top:auto}
.map{border:0;width:100%;height:360px;border-radius:var(--r);display:block;background:var(--mist)}

/* prose (condition pages) ------------------------------------------------- */
.prose-grid{display:grid;grid-template-columns:240px 1fr;gap:clamp(30px,5vw,80px);align-items:start}
.toc{position:sticky;top:96px;font-size:.88rem}
.toc b{display:block;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.toc a{display:block;padding:8px 0;color:var(--body);text-decoration:none;border-top:1px solid var(--line)}
.toc a:hover{color:var(--teal)}
.prose{max-width:46em}
.prose h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:56px 0 16px;scroll-margin-top:100px}
.prose h2:first-child{margin-top:0}
.prose h3{margin:28px 0 8px;font-size:1.2rem}
.prose p,.prose li{color:var(--body)}
.prose ul{padding-left:1.2em;margin:0 0 1.1em}
.prose li{margin:6px 0}
.callout{margin:28px 0;padding:24px 26px;border-radius:var(--r);background:var(--teal-soft);color:#063f45}
.callout b{display:block;margin-bottom:4px;color:#063f45}
.callout p{color:#0b4c53;margin:0}
.callout.warn{background:#FBF1DE;color:#5b3d06}
.callout.warn b,.callout.warn p{color:#5b3d06}
.disclaimer{font-size:.84rem;color:var(--faint);border-top:1px solid var(--line);padding-top:18px;margin-top:40px}
.doc-card{display:flex;gap:18px;align-items:center;padding:22px;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-top:36px}
.doc-card img{width:84px;height:84px;border-radius:50%;object-fit:cover;object-position:center 15%}
.doc-card b{display:block;font-family:Fraunces,Georgia,serif;font-weight:500;font-size:1.15rem}
.doc-card span{font-size:.86rem;color:var(--body)}

/* faq ------------------------------------------------------------------------ */
.faq{max-width:52em;margin:0 auto}
.faq details{border-top:1px solid var(--line);padding:4px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-family:Fraunces,Georgia,serif;font-size:1.22rem;line-height:1.35}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:16px;font-family:Inter,sans-serif;font-size:1.5rem;color:var(--teal);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{color:var(--body);margin:0 0 20px;max-width:44em}

/* closing + footer ----------------------------------------------------------- */
.closing{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.closing::before{content:"";position:absolute;inset:0;background:radial-gradient(50% 90% at 50% 120%,rgba(43,184,196,.22),transparent 70%)}
.closing .wrap{position:relative;text-align:center;max-width:860px}
.closing h2{margin:18px 0 18px}
.closing p{color:rgba(255,255,255,.74)}
.closing .btns{justify-content:center}
footer.site{background:var(--ink-2);color:rgba(255,255,255,.66);font-size:.9rem;padding:64px 0 120px}
footer.site .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
footer.site h4{font-family:Inter,sans-serif;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:#fff;margin-bottom:14px;font-weight:600}
footer.site a{display:block;color:rgba(255,255,255,.7);text-decoration:none;padding:4px 0}
footer.site a:hover{color:#fff}
footer.site .brand{margin-bottom:16px}
footer.site .legal{margin-top:46px;padding-top:22px;border-top:1px solid var(--line-dark);font-size:.8rem;display:flex;flex-wrap:wrap;gap:8px 24px}
.dock{display:none}

/* reveal ----------------------------------------------------------------------- */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

/* responsive ------------------------------------------------------------------- */
@media (max-width:1080px){
  nav.main,.head-cta{display:none}
  .burger{display:flex}
  .g4,.steps{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  footer.site .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  body{font-size:16px}
  .utility .right{display:none}
  .hero .wrap{grid-template-columns:1fr;align-items:start}
  .hero-copy{padding-bottom:0}
  .hero-media{max-width:420px;margin:0 auto;width:100%}
  .hero-badge{left:0;bottom:24px}
  .inst .wrap{grid-template-columns:1fr 1fr}
  .inst .wrap>div{border-left:0;padding:18px 0;border-top:1px solid var(--line)}
  .inst .wrap>div:nth-child(-n+2){border-top:0}
  .head,.split,.split.wide-l,.video-split,.places,.prose-grid{grid-template-columns:1fr}
  .toc{position:static;display:none}
  .signs{grid-template-columns:1fr}
  .g2,.g3,.g4,.steps{grid-template-columns:1fr}
  .timeline li{grid-template-columns:1fr;gap:4px}
  .pubs li{grid-template-columns:1fr;gap:4px}
  .mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .mosaic .a{grid-column:span 2;grid-row:span 2}
  .mosaic .b,.mosaic .c,.mosaic .d,.mosaic .e{grid-column:span 1;grid-row:span 1}
  .reel{margin:0 auto}
  footer.site .cols{grid-template-columns:1fr}
  .dock{display:grid;grid-template-columns:1fr 1fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:50;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(246,245,241,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line)}
  .dock .btn{min-height:48px;padding:10px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* phone-first layout -----------------------------------------------------------
   Most visitors arrive on a phone. Show the face, the headline and the two
   actions before any long reading, and swipe through what would otherwise stack. */
@media (max-width:820px){
  .sec{padding:52px 0}
  .sec.tight{padding:36px 0}
  .m-hide{display:none}
  .head{margin-bottom:26px}
  .head>p:not(.keep){display:none}
  h2{font-size:clamp(1.75rem,7.4vw,2.2rem)}

  /* hero: headline, photo, actions, one line, chips */
  .hero .wrap{display:flex;flex-direction:column;gap:0;padding-top:26px;padding-bottom:30px}
  .hero-copy{display:contents}
  .hero .crumbs{order:0}
  .hero .eyebrow{order:1}
  .hero h1{order:2;margin:12px 0 18px;font-size:clamp(2rem,8.6vw,2.5rem) !important}
  .hero-media{order:3;max-width:none;margin:0 0 18px}
  .hero-media img{aspect-ratio:auto;height:min(78vw,330px);border-radius:20px;object-position:center 14%}
  .hero-badge{left:12px;bottom:12px;padding:10px 14px;gap:10px;border-radius:12px}
  .hero-badge b{font-size:1.5rem}
  .hero .btns{order:4;margin-top:0}
  .hero .lede{order:5;margin:18px 0 0;font-size:1rem}
  .creds{order:6;flex-wrap:nowrap;overflow-x:auto;margin:16px calc(-1*var(--gut)) 0;padding:0 var(--gut) 2px;scrollbar-width:none}
  .creds::-webkit-scrollbar{display:none}
  .creds span{white-space:nowrap}

  /* buttons sit side by side */
  .btns{flex-wrap:nowrap;gap:10px;margin-top:22px}
  .btns .btn{flex:1 1 0;padding:13px 8px;font-size:.86rem;min-height:50px;gap:7px;white-space:nowrap}
  .btns .btn svg{width:16px;height:16px}

  /* inner page hero */
  .phero .wrap{padding-top:28px;padding-bottom:34px}
  .phero h1{font-size:clamp(1.9rem,8vw,2.4rem);margin:12px 0 14px}
  .phero .lede{font-size:1rem}

  /* institutions: one swipeable row */
  .inst .wrap{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gut);scrollbar-width:none}
  .inst .wrap::-webkit-scrollbar{display:none}
  .inst .wrap>div{flex:0 0 68%;scroll-snap-align:start;border-top:0 !important;border-left:1px solid var(--line);padding:18px 18px 18px 16px}
  .inst .wrap>div:first-child{border-left:0;padding-left:0}

  /* images first in every split, and shorter */
  .split>img,.split>figure{order:-1}
  .split img{max-height:300px;width:100%;object-position:center 20%}

  /* condition tiles */
  .g4,.g3{grid-template-columns:1fr 1fr;gap:10px}
  .g4 .card,.g3 .card{padding:16px;gap:6px}
  .g4 .card h3,.g3 .card h3{font-size:1.02rem;line-height:1.2}
  .g4 .card p,.g3 .card p,.g4 .card .more,.g3 .card .more{display:none}
  .card .ico{width:38px;height:38px;margin-bottom:4px}

  /* symptoms: two compact columns */
  .signs{grid-template-columns:1fr 1fr;column-gap:16px}
  .signs div{padding:14px 0}
  .signs b{font-size:1.02rem;line-height:1.25}
  .signs span{font-size:.82rem;line-height:1.45;display:block}
  .urgent{margin-top:22px;padding:16px 18px;font-size:.88rem}

  /* swipe rows: steps and reviews */
  .steps,.reviews{display:flex;columns:auto;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gut);gap:12px;margin-inline:calc(-1*var(--gut));padding:0 var(--gut) 6px;scrollbar-width:none}
  .steps::-webkit-scrollbar,.reviews::-webkit-scrollbar{display:none}
  .steps li{flex:0 0 74%;scroll-snap-align:start;padding:20px}
  .review{flex:0 0 84%;scroll-snap-align:start;margin:0;padding:20px}
  .review p{font-size:.93rem}
  .score{margin-top:14px}
  .score b{font-size:2.6rem}

  .pubs.short li:nth-child(n+4){display:none}
  .pubs li{padding:14px 0}

  .video-split{gap:24px}
  .reel{max-width:300px}

  /* condition pages: jump links as a swipe row */
  .toc{display:flex;position:static;gap:8px;overflow-x:auto;margin:0 calc(-1*var(--gut));padding:0 var(--gut) 4px;scrollbar-width:none}
  .toc::-webkit-scrollbar{display:none}
  .toc b{display:none}
  .toc a{flex:none;border:1px solid var(--line);border-radius:999px;padding:8px 14px;background:#fff;font-size:.84rem;white-space:nowrap}
  .prose-grid{gap:24px}
  .prose h2{margin:40px 0 12px}

  .place{padding:22px}
  .map{height:260px}
  .timeline li{padding:16px 0}
  .faq summary{font-size:1.08rem;padding:16px 36px 16px 0}
  .closing h2{font-size:clamp(1.8rem,8vw,2.3rem)}
}