/* NeckSleep / QIMU FENGYA — single stylesheet, no build step */
:root{
  --ink:#1d2420; --muted:#5c665f; --bg:#fbfaf7; --card:#ffffff;
  --line:#e5e0d5; --accent:#7a5c2e; --accent-dark:#5d4522;
  --green:#2e5d43; --radius:14px; --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.25;margin:0 0 .5em}
h1{font-size:2.3rem} h2{font-size:1.7rem;margin-top:2.2em} h3{font-size:1.15rem}
p{margin:0 0 1em} a{color:var(--accent-dark)}
img{max-width:100%;height:auto;border-radius:var(--radius);display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.small{font-size:.88rem;color:var(--muted)}
.center{text-align:center}

/* header */
header.site{position:sticky;top:0;background:rgba(251,250,247,.95);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px}
.logo{font-family:Georgia,serif;font-size:1.25rem;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:.02em}
.logo span{color:var(--accent)}
nav.main a{margin-left:22px;text-decoration:none;color:var(--ink);font-size:.95rem}
nav.main a:hover{color:var(--accent-dark);text-decoration:underline}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:1rem;cursor:pointer}
@media(max-width:760px){
  nav.main{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 20px 16px}
  nav.main.open{display:block}
  nav.main a{display:block;margin:10px 0}
  .nav-toggle{display:block}
}

/* hero / product */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:48px 0 24px;align-items:start}
@media(max-width:820px){.hero{grid-template-columns:1fr}}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;color:var(--accent);font-weight:700;margin-bottom:10px}
.price-row{display:flex;align-items:baseline;gap:14px;margin:18px 0 6px;flex-wrap:wrap}
.price-now{font-size:2rem;font-weight:700}
.price-was{font-size:1.25rem;color:var(--muted);text-decoration:line-through}
.price-note{font-size:.9rem;color:var(--green);font-weight:600}
.badges{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.badge{border:1px solid var(--accent);color:var(--accent-dark);border-radius:999px;padding:4px 12px;font-size:.82rem;font-weight:600;background:#fff}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;
  padding:15px 34px;border-radius:999px;font-size:1.05rem;border:none;cursor:pointer}
.btn:hover{background:var(--accent-dark)}
.btn.secondary{background:#fff;color:var(--accent-dark);border:1px solid var(--accent)}
.buy-box{margin:22px 0}
.thumb-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
figure{margin:0} figcaption{font-size:.85rem;color:var(--muted);margin-top:8px}

/* sections & cards */
section.block{padding:14px 0}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:820px){.grid2{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:16px 0}
.card h3{margin-top:0}
table{width:100%;border-collapse:collapse;margin:14px 0;background:#fff;border-radius:var(--radius);overflow:hidden}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f3efe6;font-weight:700}
tr:last-child td{border-bottom:none}
ul.tight li{margin-bottom:6px}
ol.steps li{margin-bottom:10px}
.notice{background:#f3efe6;border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:20px 0}
.faq-item{border-bottom:1px solid var(--line);padding:14px 0}
.faq-item h3{margin:0 0 6px;font-family:inherit;font-size:1.05rem}
.faq-item button{all:unset;display:block;width:100%;cursor:pointer;font-weight:700;font-size:1.02rem;padding:4px 0}
main{padding-bottom:30px}
.policy h2{font-size:1.35rem}

/* footer */
footer.site{border-top:1px solid var(--line);margin-top:50px;padding:34px 0 44px;background:#f5f2ea}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:26px}
footer.site a{display:block;color:var(--ink);text-decoration:none;margin:5px 0;font-size:.94rem}
footer.site a:hover{text-decoration:underline}
footer.site h4{margin:0 0 10px;font-size:.95rem}
.legal{margin-top:28px;font-size:.85rem;color:var(--muted)}

/* === Mobile refinements (2026-10-03) === */
.grid2>*,.hero>*{min-width:0}
header.site{-webkit-backdrop-filter:blur(6px)}
.faq-item button{padding:12px 0}
@media(max-width:760px){
  .nav-toggle{padding:10px 14px}
  nav.main a{margin:0;padding:12px 2px;border-bottom:1px solid var(--line)}
  nav.main a:last-child{border-bottom:none}
}
@media(max-width:640px){
  body{font-size:16.5px}
  h1{font-size:1.9rem}
  h2{font-size:1.42rem}
  .hero{padding:30px 0 14px;gap:24px}
  .card{padding:18px}
  th,td{padding:9px 10px;font-size:.93rem}
  .price-now{font-size:1.8rem}
  .btn{display:block;text-align:center;margin:0 0 10px}
}
@media(max-width:560px){
  table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
}
/* Sticky mobile buy bar (homepage only, body.has-buybar) */
.mobile-buybar{display:none}
@media(max-width:760px){
  .mobile-buybar{display:flex;align-items:center;justify-content:space-between;gap:14px;position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(29,36,32,.08);padding:10px 16px calc(10px + env(safe-area-inset-bottom));z-index:60}
  .mobile-buybar .bb-price{font-weight:700;font-size:1.05rem;line-height:1.3}
  .mobile-buybar .bb-price s{color:var(--muted);font-weight:400;font-size:.9rem}
  .mobile-buybar .bb-note{display:block;font-weight:600;font-size:.78rem;color:var(--green)}
  .mobile-buybar .btn{padding:12px 22px;font-size:1rem;white-space:nowrap;margin:0}
  body.has-buybar{padding-bottom:calc(78px + env(safe-area-inset-bottom))}
}

/* === Early-bird email capture (2026-10-03) === */
.eb-form{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-start;margin-top:12px}
.eb-form input[type=email]{flex:1 1 220px;padding:13px 16px;border:1px solid var(--line);border-radius:999px;font-size:1rem;background:#fff;color:var(--ink)}
.eb-form .btn{margin:0}
.eb-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.eb-msg{flex-basis:100%;margin:2px 0 0}
.eb-msg.ok{color:var(--green);font-weight:600}
.eb-msg.err{color:#a33}
.eb-hero{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.eb-hero h3{font-family:inherit;font-size:1rem;margin:0 0 4px}
.eb-strip{border-top:1px solid var(--line);background:#f5f2ea;padding:32px 0 10px;margin-top:44px}
.eb-strip .wrap{max-width:720px;text-align:center}
.eb-strip h2{margin-top:0;font-size:1.4rem}
.eb-strip .eb-form{justify-content:center}
.eb-strip .eb-form input[type=email]{max-width:340px}
.eb-popup-overlay{position:fixed;inset:0;background:rgba(29,36,32,.5);z-index:100;display:flex;align-items:center;justify-content:center;padding:18px}
.eb-popup{background:var(--card);border-radius:var(--radius);max-width:440px;width:100%;padding:28px;position:relative;box-shadow:0 18px 50px rgba(0,0,0,.25)}
.eb-popup h2{margin-top:0;font-size:1.45rem}
.eb-popup .eb-close{position:absolute;top:8px;right:12px;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--muted);line-height:1;padding:8px}
.eb-popup .eb-dismiss{display:inline-block;margin-top:12px;font-size:.9rem;color:var(--muted)}
[hidden]{display:none!important}
@media(max-width:640px){.eb-form .btn{flex-basis:100%}}