/* Shared style for the product, research and help pages (built by scripts/build_pages.py).
   Same dark navy / silver / electric-blue look as the home page. */
:root{--bg:#050b16;--line:#315675;--blue:#6cbbff;--text:#edf5ff;--muted:#a5b8cc;--soft:#cfe0f2;}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse at 75% 0%,#0d2e57,var(--bg) 55%) fixed;color:var(--text);font-family:"Jost",system-ui,-apple-system,sans-serif;font-size:17px;line-height:1.6}
a{color:var(--blue)}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.blue{color:transparent;background:linear-gradient(180deg,#9fd6ff,#2f8cff);-webkit-background-clip:text;background-clip:text}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:10px 20px;border-radius:10px;font:inherit;font-weight:600;font-size:16px;text-decoration:none;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn-blue{background:linear-gradient(180deg,#2f8cff,#1460d6);color:#fff;border-color:#5aa3ff}
.btn:disabled{background:#2a3a50;border-color:#3b5170;color:var(--muted);cursor:not-allowed}

/* header */
.nav{position:sticky;top:0;z-index:50;background:rgba(5,11,22,.93);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid #16304d}
.nav-in{display:flex;align-items:center;gap:20px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brand img{width:50px;height:auto;filter:drop-shadow(0 0 10px rgba(90,163,255,.45))}
.brand span{display:flex;flex-direction:column;line-height:1}
.brand b{font-weight:500;font-size:19px;letter-spacing:.06em;color:#fff;white-space:nowrap}
.brand i{font-style:normal;font-size:10px;letter-spacing:.5em;color:#5aa3ff;margin-top:5px;text-align:center}
.links{display:flex;gap:24px}
.links a{color:#dbe6f3;text-decoration:none}
.links a:hover{color:#fff}

/* common */
main{padding-bottom:40px}
.crumbs{margin:22px 0 0;font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.eyebrow{margin:0;font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--blue)}
h1{font-family:"Playfair Display",Georgia,serif;font-size:clamp(34px,4.6vw,54px);line-height:1.1;margin:6px 0 0;color:#fff}
h2{font-family:"Playfair Display",Georgia,serif;font-size:26px;margin:30px 0 8px;color:#fff}
.sub{margin:10px 0 0;color:var(--soft);font-size:18px}
.note{color:var(--muted);font-size:15px;margin-top:26px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chips span{border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:14px;color:var(--soft);background:#0b1929}

/* product page */
.product{display:grid;grid-template-columns:minmax(0,360px) 1fr;gap:40px;margin-top:20px;align-items:start}
.pic{display:grid;place-items:center;min-height:380px}
.pic img{width:190px;height:auto;filter:drop-shadow(0 0 22px rgba(47,140,255,.6)) drop-shadow(0 16px 20px rgba(0,0,0,.55))}
.buy{margin-top:20px;padding:20px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,#12283f,#091421)}
.buy .price{margin:0;font-size:30px;font-weight:700;color:var(--blue)}
.buy .left{margin:2px 0 0;min-height:20px;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#f5a623}
.buy .left.sold{color:#ff8a80}
.buy .label{margin:14px 0 6px;font-size:14px;font-weight:600;color:var(--muted)}
.sizes{display:flex;flex-wrap:wrap;gap:8px}
.size{min-height:44px;padding:8px 14px;border:1px solid #568abd;border-radius:8px;background:#10223a;color:var(--text);font:inherit;cursor:pointer}
.size[aria-pressed=true]{background:#2379bf;border-color:#8ad1ff}
.step{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:8px}
.step button{width:46px;min-height:44px;border:0;background:none;color:var(--text);font-size:22px;cursor:pointer}
.step .qty{min-width:28px;text-align:center;font-weight:700}
.buy .add{display:flex;width:100%;margin-top:16px}
.msg{min-height:22px;margin:8px 0 0;color:#a8e9ba;font-size:15px}
.perks{margin:6px 0 0;font-size:14px;color:var(--muted)}
.info{max-width:820px;margin-top:20px}
.info p,.info li{color:var(--soft)}
.info ul{padding-left:20px}
.ruo{font-size:14px;font-style:italic;color:var(--muted)!important;margin-top:20px}
.related .tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.related a{display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px;border:1px solid var(--line);border-radius:14px;background:#0b1929;text-decoration:none;color:#fff;font-weight:600}
.related img{height:120px;width:auto;filter:drop-shadow(0 0 12px rgba(47,140,255,.55))}

/* category, FAQ, about, shipping */
.cathead{margin-top:16px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;margin-top:26px}
.card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,#12283f,#091421);text-decoration:none;color:var(--text)}
.card:hover{border-color:#6cbbff}
.card img{height:150px;width:auto;align-self:center;filter:drop-shadow(0 0 14px rgba(47,140,255,.45))}
.card .name{font-weight:700;font-size:19px;color:#fff}
.card .sub{margin:0;font-size:14px;color:var(--muted)}
.card .from{font-size:15px;color:var(--blue);font-weight:600}
.cards.cats .card{min-height:150px;justify-content:space-between}
.faq{max-width:820px;margin-top:20px}
.faq details{border-bottom:1px solid #1d3550;padding:14px 0}
.faq summary{cursor:pointer;font-weight:600;color:#fff;font-size:18px}
.faq p{color:var(--soft);margin:8px 0 0}
.prose{max-width:820px}
.prose p{color:var(--soft)}
.ticks{padding-left:20px;color:var(--soft)}
.tbl{width:100%;border-collapse:collapse;margin-top:8px}
.tbl th,.tbl td{text-align:left;padding:10px 8px;border-bottom:1px solid #1d3550}
.tbl th{color:var(--muted);font-weight:600;font-size:14px}

/* footer */
.foot{border-top:1px solid #16304d;padding:26px 0 40px;color:var(--muted);font-size:13.5px;line-height:1.65}
.foot-links a{color:#dbe6f3;margin-right:16px;display:inline-block;margin-bottom:6px}
.legal{max-width:900px}

@media (max-width:860px){.links{display:none}.product{grid-template-columns:1fr;gap:20px}.pic{min-height:280px}.pic img{width:140px}}
@media (max-width:520px){.brand b{font-size:15px}.brand img{width:40px}.nav-in{gap:10px}.btn{padding:10px 14px;font-size:15px}}