/* builtbysin.shop: warm black, bone text, Brimstone yellow. Martian Mono for the mark and labels, Hanken Grotesk for reading. */
:root{--ink:#121110;--slab:#1b1a17;--field:#0e0d0c;--line:#2e2c27;--bone:#ece7dc;--ash:#9a9387;--brim:#f2c230;--good:#8fd19e;--bad:#ff8f80;
--mono:"Martian Mono",ui-monospace,Menlo,monospace;--sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",sans-serif;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--bone);font-family:var(--sans);font-size:16px;line-height:1.6;padding-inline:20px}
.wrap{max-width:1040px;margin-inline:auto}
a{color:var(--brim)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--brim);outline-offset:3px}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.p{color:var(--brim)}
.muted{color:var(--ash)}.small{font-size:13px}
.mark{font-family:var(--mono);font-weight:800;letter-spacing:-.02em;text-decoration:none;color:var(--bone)}
header.top{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-block:20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
header.top .mark{font-size:20px}
header.top .mark em{font-style:normal;font-weight:400;color:var(--ash);font-size:12px;margin-left:8px;letter-spacing:.08em}
header.top nav{display:flex;gap:18px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
header.top nav a{color:var(--ash);text-decoration:none}
header.top nav a:hover{color:var(--bone)}
header.top nav a.hl{color:var(--brim)}
section{padding-block:40px;border-bottom:1px solid var(--line)}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--brim);margin:0 0 12px}
h1,h2,h3{line-height:1.12;margin:0 0 12px;text-wrap:balance}
h1{font-size:clamp(32px,6vw,56px);font-weight:700;max-width:18ch}
h2{font-size:clamp(24px,3.6vw,34px);font-weight:700}
h3{font-size:19px}
.lead{font-size:18px;color:#d6d0c4;max-width:58ch}
.btn{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:14px 18px;border:1px solid var(--brim);background:var(--brim);color:var(--ink);text-decoration:none;cursor:pointer;border-radius:0}
.btn.ghost{background:none;color:var(--bone);border-color:var(--line)}
.btn.off,.btn:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:16px}
.price{font-family:var(--mono);font-size:26px;font-weight:700;font-variant-numeric:tabular-nums}
.redeem{border:1px solid var(--line);border-top:3px solid var(--brim);background:var(--slab);padding:22px;margin-top:22px}
.redeem-in{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:22px;align-items:end}
.redeem h2{font-size:24px;margin-bottom:6px}
.redeem p{margin:0}
.keyrow{display:flex;gap:10px;flex-wrap:wrap}
input,select,textarea{font:inherit;font-size:16px;color:var(--bone);background:var(--field);border:1px solid var(--line);padding:11px 12px;width:100%;min-width:0;border-radius:0}
textarea{min-height:84px;resize:vertical}
#key{font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;flex:1 1 240px;width:auto}
.msg{min-height:1.4em;margin-top:10px;font-size:14px}.msg.bad{color:var(--bad)}.msg.good{color:var(--good)}
.thanks{margin-top:14px;border-left:3px solid var(--good);padding:8px 12px;background:var(--field)}
.hero{padding-block:48px}
.product-hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:30px;align-items:center}
.art{font-family:var(--mono);font-weight:800;display:grid;place-items:center;text-align:center;aspect-ratio:16/9;max-width:100%;background:repeating-linear-gradient(135deg,transparent 0 14px,rgba(242,194,48,.06) 14px 15px),var(--field);border-bottom:1px solid var(--line);font-size:clamp(18px,3vw,28px);padding:10px}
.art>span{white-space:nowrap}
.art.big{aspect-ratio:1;border:1px solid var(--line);font-size:clamp(20px,3.4vw,30px)}
.facts{list-style:none;padding:0;margin:12px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.facts li{font-family:var(--mono);font-size:11px;letter-spacing:.04em;border:1px solid var(--line);padding:5px 8px;color:var(--ash)}
.facts.big li{font-size:12px;color:var(--bone)}
.shelf{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{background:var(--slab);border:1px solid var(--line);display:flex;flex-direction:column}
.card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.card .body p{color:var(--ash);margin:0}
.card .row{margin-top:auto;padding-top:16px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.tile{background:var(--slab);border:1px solid var(--line);padding:18px}
.tile p{margin:0;color:var(--ash);font-size:15px}
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line)}
.flow div{padding:18px;border-right:1px solid var(--line)}.flow div:last-child{border-right:0}
.flow .k{font-family:var(--mono);font-size:11px;color:var(--brim);letter-spacing:.08em}
.flow h3{margin:8px 0 4px;font-size:17px}.flow p{margin:0;color:var(--ash);font-size:14px}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--ash);margin:8px 0 0}
form.order{background:var(--slab);border:1px solid var(--line);padding:20px;margin-top:16px}
fieldset{border:0;padding:0;margin:0 0 16px;min-width:0}
legend,label{display:block;font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin:0 0 6px;padding:0;color:var(--bone)}
legend .muted,label .muted{text-transform:none;letter-spacing:0;font-family:var(--sans);font-weight:400}
label.check{display:flex;gap:10px;align-items:center;text-transform:none;letter-spacing:0;font-family:var(--sans);font-size:15px;font-weight:400;margin:0 0 16px}
label.check input{width:20px;height:20px;flex:none}
.field{margin-bottom:16px;min-width:0}
.two,.three{display:grid;gap:14px}.two{grid-template-columns:1fr 1fr}.three{grid-template-columns:repeat(3,1fr)}
.hint{font-size:13px;color:var(--ash);margin:6px 0 0}
.rowlist{display:grid;gap:8px;margin-bottom:10px}
.prow{display:grid;grid-template-columns:28px 1.2fr 1fr 1.4fr 44px;grid-template-areas:'n nm cl nt rm';gap:8px;align-items:center}
.prow .n{grid-area:n;font-family:var(--mono);color:var(--ash);text-align:center;font-size:13px}
.prow .nm{grid-area:nm}.prow .cl{grid-area:cl}.prow .nt{grid-area:nt}
.prow .rm{grid-area:rm;background:none;border:1px solid var(--line);color:var(--ash);height:46px;cursor:pointer}
.addrow{background:none;border:1px dashed var(--line);color:var(--bone);padding:10px 14px;cursor:pointer;font:inherit;font-size:14px}
.actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:6px}
.err{color:var(--bad);margin-top:10px}
.track{height:10px;background:var(--field);border:1px solid var(--line);margin:16px 0}
#bar{height:100%;width:3%;background:var(--brim);transition:width .8s ease}
.legal{padding-block:40px;max-width:70ch}
.legal h2{font-size:20px;margin:28px 0 8px}
.legal p,.legal li{color:#d6d0c4}
footer.foot{padding-block:28px 40px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ash)}
footer.foot .links{display:flex;gap:16px;flex-wrap:wrap}
footer.foot a{color:var(--ash);text-decoration:none}
footer.foot a:hover{color:var(--bone)}
.sel{font-family:var(--mono);user-select:all}
/* Intro overlay */
.intro{position:fixed;inset:0;z-index:50;background:var(--ink);display:flex;flex-direction:column;padding:calc(24px + env(safe-area-inset-top,0px)) 20px calc(24px + env(safe-area-inset-bottom,0px))}
#confetti{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.slides{position:relative;flex:1;display:grid;place-items:center}
.slide{grid-area:1/1;text-align:center;max-width:640px;opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;pointer-events:none}
.slide.on{opacity:1;transform:none}
.slide h2{font-size:clamp(28px,5.4vw,48px)}
.slide p{color:#d6d0c4;font-size:18px;margin:0}
.slide .mark.big{font-size:44px;margin-bottom:18px}
.intro-foot{position:relative;display:flex;justify-content:center;align-items:center;gap:12px}
.dots{display:flex;gap:8px}.dots i{width:28px;height:4px;background:var(--line)}.dots i.on{background:var(--brim)}
@media (max-width:760px){.redeem-in,.product-hero,.shelf,.grid3,.two{grid-template-columns:1fr}.three{grid-template-columns:1fr 1fr}.flow{grid-template-columns:1fr 1fr}.flow div:nth-child(2){border-right:0}.flow div:nth-child(-n+2){border-bottom:1px solid var(--line)}
.prow{grid-template-columns:24px 1fr 1fr 44px;grid-template-areas:'n nm nm rm' '. cl nt .'}.art.big{display:none}}
@media (prefers-reduced-motion:reduce){.slide{transition:none}#bar{transition:none}}