/* Bodyvault landing page. Dark, mobile-first, no external resources. */
:root{
  --bg:#0a0a0b;--bg2:#111113;--card:#161618;--line:#2a2a2e;--fg:#f5f5f7;--muted:#a8a8b0;
  --red:#ff3b4a;--red-btn:#e0102b;--red-btn-h:#c80d25;--focus:#ffd60a;--radius:18px;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
main{overflow-x:clip}
a{color:var(--fg);text-decoration-color:var(--red);text-underline-offset:3px}
a:hover{color:#fff;text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:6px}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0}
p{margin:0 0 12px}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--fg);color:var(--bg);padding:10px 14px;border-radius:10px;font-weight:600}
.skip:focus{top:12px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--red-btn);color:#fff;font-weight:700;text-decoration:none;border:0;border-radius:999px;padding:12px 22px;font-size:1rem;cursor:pointer;min-height:44px;transition:background .15s,transform .15s}
.btn:hover{background:var(--red-btn-h);color:#fff}
.btn:active{transform:scale(.98)}
.btn-sm{padding:8px 16px;font-size:.9rem;min-height:38px}
.btn-lg{padding:16px 28px;font-size:1.08rem;min-height:54px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:progress}
.link-arrow{font-weight:600;text-decoration:none;color:var(--fg);padding:12px 4px}
.link-arrow::after{content:" →";color:var(--red)}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(10,10,11,.82);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid rgba(255,255,255,.06)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;letter-spacing:-.01em;text-decoration:none;color:var(--fg)}
.top nav{display:flex;align-items:center;gap:6px}
.top nav a:not(.btn){display:none;text-decoration:none;color:var(--muted);font-weight:500;font-size:.95rem;padding:8px 10px}
.top nav a:not(.btn):hover{color:var(--fg)}
@media (min-width:720px){.top nav a:not(.btn){display:inline-block}}

/* hero */
.hero{position:relative;overflow:hidden;padding:36px 0 48px;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:60% 20%;opacity:.42}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,10,11,.55) 0%,rgba(10,10,11,.7) 45%,var(--bg) 100%)}
.hero-in{display:grid;gap:36px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:600;color:var(--fg);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:6px 12px;margin-bottom:18px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(255,59,74,.25)}
.hero h1{font-size:clamp(2.2rem,8.4vw,4.1rem);font-weight:800;max-width:14ch}
.lede{font-size:1.12rem;color:#d6d6dc;max-width:36rem;margin:18px 0 26px}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}
.stats{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px;padding:0;margin:28px 0 0;color:var(--muted);font-size:.95rem}
.stats b{color:var(--fg);font-size:1.25rem;margin-right:4px}
.hero-phone{display:flex;justify-content:center}
.hero-phone .phone{width:min(270px,70vw);transform:rotate(-3deg)}
@media (min-width:900px){
  .hero{padding:72px 0 88px}
  .hero-in{grid-template-columns:1.25fr .75fr}
  .hero-bg img{object-position:right 20%;opacity:.55;width:62%;margin-left:auto}
  .hero-bg::after{background:linear-gradient(90deg,var(--bg) 30%,rgba(10,10,11,.65) 58%,rgba(10,10,11,.25) 80%,rgba(10,10,11,.6) 100%),linear-gradient(180deg,transparent 70%,var(--bg) 100%)}
  .hero-phone .phone{width:290px}
}

/* device frames */
.phone{position:relative;width:250px;max-width:100%;padding:9px;border-radius:44px;background:linear-gradient(145deg,#2c2c30,#141416);box-shadow:0 0 0 1px rgba(255,255,255,.08),0 30px 60px -20px rgba(0,0,0,.8),0 0 80px -30px rgba(255,59,74,.35)}
.phone img{border-radius:36px;width:100%;aspect-ratio:600/1304;object-fit:cover;background:#000}
.watch{width:190px;padding:10px;border-radius:40px;background:linear-gradient(145deg,#2c2c30,#141416);box-shadow:0 0 0 1px rgba(255,255,255,.08),0 24px 48px -18px rgba(0,0,0,.8)}
.watch img{border-radius:30px;background:#000}
.widget{background:#000;border-radius:22px;padding:6px;box-shadow:0 0 0 1px rgba(255,255,255,.1),0 16px 32px -16px rgba(0,0,0,.8)}
.widget img{border-radius:16px}

/* sections */
.section{padding:64px 0}
.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-h{font-size:clamp(1.9rem,6vw,2.8rem);font-weight:800;margin-bottom:10px}
.section-sub{color:var(--muted);font-size:1.1rem;max-width:40rem;margin-bottom:32px}
.kicker{color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;margin-bottom:8px}

/* features */
.feat{display:grid;gap:28px;align-items:center;padding:40px 0;border-top:1px solid var(--line)}
.feat:first-of-type{border-top:0}
.feat h3{font-size:clamp(1.5rem,4.6vw,2.1rem);font-weight:800;margin-bottom:12px}
.feat-copy p{color:#d0d0d6}
.feat-media{display:flex;justify-content:center}
.duo{position:relative;display:flex;align-items:flex-end;justify-content:center}
.feat>*{min-width:0}
.duo .phone{width:min(230px,52vw)}
.duo>.phone+.phone,.duo>.watch,.duo>.widget{margin-left:-40px;margin-bottom:-12px;position:relative;z-index:1}
.duo>.phone+.phone{width:min(200px,44vw);margin-bottom:28px}
.duo>.watch{width:min(160px,38vw)}
.duo>.widget{width:min(220px,46vw);margin-bottom:40px}
.ticks{list-style:none;padding:0;margin:16px 0 0}
.ticks li{position:relative;padding-left:28px;margin:8px 0;color:var(--fg)}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:rgba(255,59,74,.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-4.9' fill='none' stroke='%23ff3b4a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.comps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (min-width:900px){
  .feat{grid-template-columns:1fr 1fr;gap:64px;padding:56px 0}
  .feat.flip .feat-media{order:2}
  .feat-copy{max-width:30rem}
  .duo .phone{width:250px}
  .duo>.phone+.phone{width:215px}
  .duo>.watch{width:175px}
  .duo>.widget{width:240px}
  .watchfaces{grid-template-columns:.9fr 1.1fr}
}

/* cards */
.cards3{display:grid;gap:14px}
@media (min-width:800px){.cards3{grid-template-columns:repeat(3,1fr);gap:18px}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{font-size:1.15rem;margin-bottom:8px}
.card p{color:#c9c9d0;margin:0}
.more{margin-top:22px;color:var(--muted)}
.perk-n{display:block;color:var(--red);font-weight:800;font-size:.9rem;letter-spacing:.06em;margin-bottom:10px}

/* join */
.join{background:radial-gradient(1200px 500px at 20% 0%,rgba(255,59,74,.14),transparent 60%),var(--bg2);border-top:1px solid var(--line)}
.join-in{display:grid;gap:32px}
.join-copy p{color:#d0d0d6;max-width:30rem}
.athlete{display:none;margin-top:28px;border-radius:var(--radius);overflow:hidden;max-width:420px;box-shadow:0 0 0 1px rgba(255,255,255,.06)}
@media (min-width:960px){.join-in{grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}.athlete{display:block}}
.join-box{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px 18px}
@media (min-width:600px){.join-box{padding:30px}}
.form{display:grid;gap:4px}
.req-note{color:var(--muted);font-size:.88rem;margin-bottom:8px}
.field{display:grid;gap:6px;margin-bottom:10px}
.field label{font-weight:600;font-size:.95rem}
.opt{color:var(--muted);font-weight:400}
input[type=text],input[type=email],select{width:100%;min-height:48px;font:inherit;font-size:16px;color:var(--fg);background:#0e0e10;border:1px solid #3a3a40;border-radius:12px;padding:10px 14px;appearance:none;-webkit-appearance:none}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23a8a8b0' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:12px;padding-right:38px}
input::placeholder{color:#7c7c84}
input:focus,select:focus{border-color:var(--red);outline:none;box-shadow:0 0 0 3px rgba(255,59,74,.35)}
input:focus-visible,select:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
[aria-invalid=true]{border-color:#ff6b77!important}
.row2{display:grid;gap:0 12px}
@media (min-width:600px){.row2{grid-template-columns:1fr 1fr}}
.hint{color:var(--muted);font-size:.86rem;margin:0}
.hint.indent{margin:-4px 0 6px 34px}
.err{color:#ff8a94;font-size:.88rem;font-weight:600;margin:0;min-height:0}
.err:empty{display:none}
.checks{margin:8px 0 6px;display:grid;gap:6px}
.check{display:grid;grid-template-columns:24px 1fr;gap:10px;align-items:start}
.check input{width:22px;height:22px;margin:2px 0 0;accent-color:var(--red-btn);cursor:pointer}
.check label{font-size:.96rem;cursor:pointer}
.check+.err{margin-left:34px}
.hp{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-err{color:#ff8a94;font-weight:600;margin:4px 0 10px}
.form-err:empty{display:none}
.fine{color:var(--muted);font-size:.84rem;margin-top:12px}
.done h2{font-size:1.6rem;font-weight:800;margin-bottom:18px}
.done:focus{outline:none}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:18px}
.steps li{display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start}
.steps h3{font-size:1.1rem;margin:4px 0 4px}
.steps p{color:#d0d0d6}
.step-n{width:36px;height:36px;border-radius:50%;background:var(--red-btn);color:#fff;font-weight:800;display:grid;place-items:center}
.result{padding-top:8px}
.result h1{font-size:2rem;margin-bottom:12px}

/* faq */
.faq{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:1.08rem;padding:18px 36px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--red)}
.faq[open] summary::after{content:"–"}
.faq div{padding:0 0 18px;color:#d0d0d6}

/* footer */
.foot{border-top:1px solid var(--line);padding:36px 0 48px;color:var(--muted);font-size:.93rem}
.foot-in{display:grid;gap:10px}
.foot a{color:var(--fg)}
.foot .fine{max-width:52rem}