/* A-List Mobile Labs — Heart Health Learning Center
   Brand: navy, teal, white, charcoal. No tracking, no forms. */
:root{
  --navy:#08283d;--navy-deep:#061c2d;--navy-2:#0f3550;
  --teal:#007f7c;--teal-dark:#006a67;--teal-bright:#12c5bc;--teal-soft:#e1f5f1;
  --charcoal:#1f2b33;--ink:#102c3e;--muted:#41586a;--soft:#527080;
  --bg:#f5f9fa;--white:#fff;--line:#d7e4e8;--gold:#f4c35a;
  --radius:16px;--shadow:0 10px 30px #0b34401a;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;overflow-x:hidden}
img{max-width:100%}
a{color:var(--teal-dark)}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--teal-bright);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--navy);padding:10px 14px;z-index:50}
.skip:focus{left:12px;top:12px}

/* Header */
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 2px 14px #0005}
.header-row{max-width:1120px;margin:auto;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{color:#fff;text-decoration:none;font-weight:850;letter-spacing:.12em;font-size:.95rem;line-height:1.2}
.brand span{color:var(--teal-bright)}
.brand small{display:block;letter-spacing:.08em;font-weight:600;color:#a9d6dd;font-size:.68rem;text-transform:uppercase}
.header-cta{display:inline-flex;align-items:center;gap:6px;background:var(--teal-bright);color:var(--navy-deep);font-weight:800;text-decoration:none;padding:10px 14px;border-radius:10px;font-size:.9rem;min-height:44px;white-space:nowrap}
.header-cta:hover{background:#3fe0d5}
.topic-nav{border-top:1px solid #ffffff1a;overflow-x:auto;scrollbar-width:none}
.topic-nav::-webkit-scrollbar{display:none}
.topic-nav ul{max-width:1120px;margin:auto;padding:0 10px;list-style:none;display:flex;gap:2px}
.topic-nav a{display:block;color:#cfe9ee;text-decoration:none;font-size:.86rem;font-weight:650;padding:10px 10px;white-space:nowrap;border-bottom:3px solid transparent}
.topic-nav a:hover{color:#fff}
.topic-nav a[aria-current=page]{color:#fff;border-bottom-color:var(--teal-bright)}

/* Layout */
main{display:block}
.wrap{max-width:1120px;margin:auto;padding:0 16px}
.section{padding:44px 0}
.tag{font-size:.76rem;text-transform:uppercase;letter-spacing:.12em;color:var(--teal);font-weight:800}
h1{font-size:clamp(2rem,5.4vw,3.6rem);letter-spacing:-.035em;line-height:1.07;margin:10px 0 16px;color:var(--navy)}
h2{font-size:clamp(1.5rem,3.4vw,2.2rem);letter-spacing:-.025em;line-height:1.15;margin:6px 0 12px;color:var(--navy)}
h3{font-size:1.15rem;margin:4px 0 8px;color:var(--navy)}
.lead{font-size:1.1rem;color:#385568;max-width:62ch}
.muted{color:var(--muted)}
.small{font-size:.88rem;color:var(--soft)}
.grid-2{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:start}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 6px 20px #0b34400d}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:12px;background:var(--teal);color:#fff;text-decoration:none;font-weight:800;min-height:50px;border:0;font-size:1rem;line-height:1.2;text-align:center}
.btn:hover{background:var(--teal-dark)}
.btn.big{font-size:1.08rem;padding:17px 26px}
.btn.light{background:var(--teal-bright);color:var(--navy-deep)}
.btn.light:hover{background:#3fe0d5}
.btn.ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.btn.ghost:hover{background:var(--navy);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 8px}

/* Hero */
.hero{padding:40px 0 30px}
.hero .grid-2{align-items:center}
.crumb{font-size:.86rem;color:var(--soft);margin-bottom:6px}
.crumb a{color:var(--soft)}

/* 3D model card */
.model-card{margin:0;background:radial-gradient(ellipse at 50% 35%,#1b4a66 0%,#0b2539 62%,#071a2a 100%);border-radius:22px;padding:14px;box-shadow:0 18px 45px #06203236;color:#e6f4f7}
.viewer{position:relative;width:100%;height:340px;border-radius:14px;overflow:hidden;touch-action:none;cursor:grab;user-select:none;-webkit-user-select:none;background:radial-gradient(ellipse at 50% 45%,#22465f 0%,#0b2035 70%)}
.viewer:active{cursor:grabbing}
.viewer canvas{display:block;width:100%;height:100%}
.viewer .hint-badge{position:absolute;left:10px;top:10px;pointer-events:none;font-size:.68rem;color:#bde6f0;letter-spacing:.07em;background:#061c2db3;padding:5px 8px;border-radius:7px;font-weight:700}
.viewer .loading{position:absolute;inset:0;display:grid;place-items:center;color:#bde6f0;font-size:.9rem}
.viewer-error{display:grid;place-items:center;text-align:center;color:#e0e9f3;padding:26px;height:100%;font-size:.95rem}
.viewer-actions{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:10px}
.viewer-actions button{background:#0c334a;border:1px solid #487c92;color:#fff;border-radius:9px;padding:8px 11px;font:inherit;font-size:.85rem;font-weight:650;cursor:pointer;min-height:40px}
.viewer-actions button:hover{border-color:var(--teal-bright)}
.model-caption{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;justify-content:center;margin-top:10px;font-size:.78rem;color:#b9d3dc;text-align:center}
.illus-badge{display:inline-block;background:#f4c35a;color:#3a2a00;font-weight:800;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;padding:3px 8px;border-radius:99px}
.viewer-tip{font-size:.78rem;color:#c9e0e8;text-align:center;margin:8px 0 0}

/* Mode switcher */
.modes{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.mode-btn{border:1.5px solid #9fc2cc;background:#fff;color:var(--navy);padding:10px 15px;border-radius:11px;font:inherit;font-weight:750;cursor:pointer;min-height:44px}
.mode-btn[aria-pressed=true]{background:var(--navy);color:#fff;border-color:var(--navy)}
.mode-info{background:#fff;border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:12px;padding:14px 16px;min-height:96px;color:var(--charcoal)}
.mode-info strong{color:var(--navy)}

/* Content blocks */
.points{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.points li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px 14px 46px;position:relative}
.points li:before{content:"";position:absolute;left:16px;top:19px;width:14px;height:14px;border-radius:50%;background:var(--teal-bright);box-shadow:0 0 0 4px #12c5bc33}
.split{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.split .card h3{display:flex;align-items:center;gap:8px}
.yes h3:before{content:"✓";color:var(--teal)}
.no h3:before{content:"!";display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:#fde7c4;color:#7a4b00;font-size:.85rem}
.card ul{padding-left:20px;margin:6px 0 0}
.card li{margin:6px 0}
.ask{background:var(--teal-soft);border-radius:var(--radius);padding:22px}
.ask ul{margin:8px 0 0;padding-left:20px}
.ask li{margin:6px 0}

/* CTA */
.cta-block{background:linear-gradient(140deg,var(--navy) 0%,#0b3a55 100%);color:#fff;border-radius:22px;padding:30px;box-shadow:var(--shadow)}
.cta-block h2{color:#fff}
.cta-block .tag{color:#7df2e2}
.cta-block p{color:#d6e8f0}
.cta-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:26px;align-items:start}
.panel-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.panel-list li a{display:flex;justify-content:space-between;gap:12px;align-items:center;background:#ffffff12;border:1px solid #ffffff2a;border-radius:12px;padding:12px 14px;color:#fff;text-decoration:none}
.panel-list li a:hover{border-color:var(--teal-bright)}
.panel-list .pname{font-weight:750;line-height:1.3}
.panel-list .pmeta{display:block;font-size:.78rem;color:#a9cbd6;font-weight:500}
.panel-list .price{font-weight:850;color:#7df2e2;font-size:1.05rem;white-space:nowrap}
.status{display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:2px 7px;border-radius:99px;margin-left:4px;vertical-align:1px}
.status.ready{background:#12c5bc2e;color:#7df2e2}
.status.pending{background:#f4c35a2e;color:#f8d98d}
.includes{font-size:.86rem;color:#bcd6df;border-top:1px solid #ffffff22;margin-top:16px;padding-top:14px}

/* Guide band */
.guide-band{background:var(--teal-soft);border:1px solid #bfe7df;border-radius:22px;padding:28px;display:grid;grid-template-columns:1.4fr auto;gap:20px;align-items:center}
.guide-band h2{margin-top:0}

/* Topic cards */
.topic-card{display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s,border-color .15s}
.topic-card:hover{transform:translateY(-3px);border-color:var(--teal)}
.topic-card .num{font-weight:850;color:var(--teal);font-size:.8rem;letter-spacing:.1em}
.topic-card p{color:var(--muted);margin:0 0 12px;flex:1}
.topic-card .go{font-weight:800;color:var(--teal-dark)}
.topic-card .chip{align-self:flex-start;font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:#0f355012;color:var(--navy);border-radius:99px;padding:3px 9px;margin-bottom:8px}

/* Journey */
.journey{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}
.journey li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;counter-increment:step}
.journey li:before{content:counter(step);display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;margin-bottom:8px}
.journey strong{display:block;color:var(--navy)}

/* Table */
.table-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--line);background:#fff}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.93rem}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--navy);color:#fff;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase}
tr:last-child td{border-bottom:0}
td .price{font-weight:850;color:var(--navy);white-space:nowrap}
td a{font-weight:750}

/* Marker chips (panel explorer) */
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.chip-btn{border:1.5px solid #9fc2cc;background:#fff;color:var(--navy);padding:7px 11px;border-radius:99px;font:inherit;font-size:.85rem;font-weight:700;cursor:pointer;min-height:38px}
.chip-btn.on{border-color:var(--teal);background:#e6f7f5}
.chip-btn[aria-pressed=true]{background:var(--teal);border-color:var(--teal);color:#fff}

/* Pager / footer */
.pager{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.pager a{flex:1 1 240px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--navy);font-weight:750}
.pager a small{display:block;color:var(--soft);font-weight:600}
.pager a.next{text-align:right}
.sources{font-size:.85rem;color:var(--soft)}
.sources a{color:var(--soft)}
.disclaimer{background:#fff;border:1px dashed #b8ccd3;border-radius:14px;padding:14px 16px;font-size:.86rem;color:var(--muted)}
.site-footer{border-top:1px solid var(--line);padding:28px 16px 40px;text-align:center;background:#fff;margin-top:30px}
.site-footer nav a{color:var(--teal-dark);margin:0 9px;font-weight:650;display:inline-block;padding:4px 0}

@media (max-width:860px){
  .grid-2,.cta-grid,.split{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .journey{grid-template-columns:1fr 1fr}
  .guide-band{grid-template-columns:1fr}
}
@media (max-width:560px){
  .grid-3,.journey{grid-template-columns:1fr}
  .viewer{height:300px}
  .section{padding:32px 0}
  .hero{padding:26px 0 16px}
  .cta-block,.guide-band{padding:22px 18px}
  .btn{width:100%}
  .header-cta{padding:9px 11px;font-size:.82rem}
  .brand{font-size:.82rem}
  .brand small{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.table-wrap .status.ready{background:#e1f5f1;color:#006a67}
.table-wrap .status.pending{background:#fdf0d2;color:#7a5200}
.journey li strong{margin-bottom:4px}
.topic-hero{display:grid;grid-template-columns:1.05fr 1fr;grid-template-areas:"text model" "modes model";column-gap:32px;align-items:start}
.th-text{grid-area:text}.th-model{grid-area:model}.th-modes{grid-area:modes}
.brand{white-space:nowrap}
@media (max-width:860px){.topic-hero{grid-template-columns:1fr;grid-template-areas:"text" "model" "modes"}.th-modes{margin-top:6px}}
@media (max-width:560px){.hide-sm{display:none}.brand{font-size:.78rem;letter-spacing:.09em}.header-row{padding:10px 14px}}

/* ---- v2: conversion + accessibility additions ---- */
.btn.ghost-light{background:transparent;color:#fff;border:2px solid #7df2e2}
.btn.ghost-light:hover{background:#ffffff14}
.related{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0 0 6px;font-size:.92rem;color:var(--muted)}
.related a{font-weight:750;display:inline-block;padding:6px 0;min-height:32px}
.service-line{background:#fff;border:1px solid var(--line);border-left:5px solid var(--teal-bright);border-radius:12px;padding:12px 14px;color:var(--charcoal);margin:14px 0 6px}
.panel-list .prow{background:#ffffff12;border:1px solid #ffffff2a;border-radius:12px;padding:12px 14px}
.panel-list .ptop{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;color:#fff}
.panel-list .plinks{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:8px}
.panel-list .plinks a{color:#7df2e2;font-weight:750;font-size:.9rem;text-decoration:underline;text-underline-offset:3px;padding:6px 0;min-height:36px;display:inline-flex;align-items:center}
.panel-list .plinks a:hover{color:#fff}
.tlinks a{display:inline-block;padding:6px 4px;min-height:36px}
.faq-list{display:grid;gap:10px;margin-top:14px}
details.faq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 16px}
details.faq summary{cursor:pointer;font-weight:750;color:var(--navy);padding:14px 0;min-height:48px;list-style-position:outside}
details.faq p{margin:0 0 14px;color:var(--charcoal)}
.alt-text{margin-top:8px;font-size:.82rem;color:#c9e0e8;text-align:left}
.alt-text summary{cursor:pointer;color:#7df2e2;font-weight:700;padding:8px 0;min-height:40px;text-align:center}
.alt-text p{margin:6px 4px 4px;line-height:1.55}
.next-q{margin:0 0 14px;color:var(--muted)}
.next-q a{font-weight:750}
.linklike{background:none;border:0;padding:4px 2px;font:inherit;color:var(--teal-dark);text-decoration:underline;cursor:pointer;min-height:32px}
.viewer-actions button{min-height:44px;min-width:44px}
.chip-btn{min-height:44px}
.topic-nav a{min-height:44px;display:flex;align-items:center}
.site-footer nav a{padding:10px 4px}
.viewer:focus-visible{outline:3px solid var(--teal-bright);outline-offset:3px}
#alist-consent{position:fixed;left:12px;right:12px;bottom:12px;z-index:60;max-width:760px;margin:auto;background:var(--navy);color:#e6f4f7;border-radius:14px;padding:14px 16px;box-shadow:0 10px 30px #0006;font-size:.9rem;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
#alist-consent p{margin:0;flex:1 1 320px}
#alist-consent .consent-actions{display:flex;gap:8px}
#alist-consent button{min-height:44px;border-radius:10px;border:0;padding:10px 14px;font:inherit;font-weight:800;cursor:pointer;background:var(--teal-bright);color:var(--navy-deep)}
#alist-consent button.secondary{background:transparent;color:#fff;border:1.5px solid #7da9b8}
@media (max-width:560px){.btn-row .btn{width:100%}.related{font-size:.88rem}}
.card > a{display:inline-block;padding:10px 0;min-height:44px}
.brand{display:inline-block;padding:6px 0}
@media (max-width:560px){#alist-consent{font-size:.8rem;padding:10px 12px;left:8px;right:8px;bottom:8px}#alist-consent button{padding:8px 12px}}
.panel-list .plinks a{display:inline-flex;background:none;border:0;border-radius:0;padding:6px 0;justify-content:flex-start}