/* YVR Peptides. Layout: clinical sheet. Warm-neutral white, graphite ink, hairline rules, square corners, one oxblood accent, data in Plex Mono. */
:root{
  --bg:#FBFAF8; --card:#FFFFFF; --fg:#1D1B19; --mute:#66615B; --rule:#E1DDD6; --rule-strong:#1D1B19;
  --teal:#8E2A3A; --teal-ink:#FFFFFF; --teal-soft:#F6E8EA; --warn-soft:#F4F1EB;
  --sans:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif; --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#151413;--card:#1D1B19;--fg:#ECE8E2;--mute:#A09A91;--rule:#2F2C28;--rule-strong:#ECE8E2;--teal:#D8717F;--teal-ink:#1D0B0F;--teal-soft:#3A2226;--warn-soft:#262320;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#151413;--card:#1D1B19;--fg:#ECE8E2;--mute:#A09A91;--rule:#2F2C28;--rule-strong:#ECE8E2;--teal:#D8717F;--teal-ink:#1D0B0F;--teal-soft:#3A2226;--warn-soft:#262320;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.6 var(--sans)}
a{color:inherit}
img,svg{max-width:100%}
h1,h2,h3,h4{font-weight:500;letter-spacing:-.015em;line-height:1.15;margin:0;text-wrap:balance}
h1{font-size:clamp(1.9rem,4vw,3rem);font-weight:400}
h2{font-size:clamp(1.4rem,2.6vw,1.9rem)}
h3{font-size:1.1rem}
h4{font-size:.95rem}
p{margin:0}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.in{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.lab{font:400 .72rem/1.3 var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--mute)}
.dim{color:var(--mute)}
.lead{font-size:1.05rem;color:var(--mute);max-width:62ch;line-height:1.65}
.mono{font-family:var(--mono)}

body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
.promo{border-bottom:1px solid var(--rule);font:400 .78rem var(--mono);color:var(--mute)}
.promo .in{display:flex;flex-wrap:wrap;gap:.2rem 2rem;padding-block:.45rem}
.promo b{color:var(--teal);font-weight:500}
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--bg);border-bottom:1px solid var(--rule)}
.top .in{display:flex;align-items:center;gap:1.5rem;padding-block:.9rem}
.wm{display:inline-flex;align-items:baseline;gap:.55rem;text-decoration:none;font:500 1.05rem var(--sans);letter-spacing:.02em}
.wm .yvr{font:500 1.05rem var(--mono);letter-spacing:.22em;color:var(--teal);padding:.15rem .4rem;border:1px solid var(--teal)}
.menu{display:flex;gap:1.5rem;margin-left:auto;flex-wrap:wrap}
.menu a{text-decoration:none;font-size:.92rem;padding:.2rem 0;border-bottom:1.5px solid transparent}
.menu a:hover{border-color:var(--rule-strong)}
.menu a[aria-current]{border-color:var(--teal);color:var(--teal)}
.bag{display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;font:400 .85rem var(--mono);border:1px solid var(--rule-strong);padding:.45rem .8rem}
.bag b{font-weight:500;color:var(--teal)}
.tog{display:none;background:none;border:1px solid var(--rule-strong);color:var(--fg);padding:.4rem .8rem;font:400 .85rem var(--mono);margin-left:auto}
@media (max-width:900px){
  .tog{display:inline-block}.top .in{position:relative}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg);flex-direction:column;gap:0;border-bottom:1px solid var(--rule);padding:.4rem max(16px,env(safe-area-inset-right,0px)) .6rem max(16px,env(safe-area-inset-left,0px))}
  .menu.open{display:flex}.menu a{padding:.7rem 0;border-bottom:1px solid var(--rule);font-size:1rem}
}

.b{white-space:nowrap;flex:none;width:auto;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid var(--rule-strong);background:var(--fg);color:var(--bg);cursor:pointer;text-decoration:none;font:500 .92rem var(--sans);padding:.7rem 1.25rem;white-space:nowrap}
.b.hot{background:var(--teal);border-color:var(--teal);color:var(--teal-ink)}
.b.line{background:transparent;color:var(--fg)}
.b.sm{padding:.45rem .85rem;font-size:.85rem}
.b.wide{width:100%}
.b:hover{opacity:.88}

/* hero */
.hero{padding-block:clamp(2.5rem,6vw,5rem) 2rem;display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:end;border-bottom:1px solid var(--rule)}
.hero > *{min-width:0}
.hero h1{margin-top:.8rem;max-width:20ch}
.hero .lead{margin-top:1.2rem}
.hero .go{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.8rem}
.spec{border:1px solid var(--rule-strong);background:var(--card);font-family:var(--mono);font-size:.82rem}
.spec .h{display:flex;justify-content:space-between;padding:.6rem .9rem;border-bottom:1px solid var(--rule-strong);text-transform:uppercase;letter-spacing:.1em;font-size:.7rem}
.spec .r{display:flex;justify-content:space-between;gap:1rem;padding:.5rem .9rem;border-bottom:1px solid var(--rule)}
.spec .r span:first-child{color:var(--mute)}
.spec .r:last-child{border-bottom:0}
.spec .big{font-size:1.5rem;padding:.9rem;border-bottom:1px solid var(--rule);font-family:var(--sans);font-weight:500}
@media (max-width:820px){.hero{grid-template-columns:1fr;align-items:start}}

.stats{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--rule)}
.stats > div{padding:1.2rem 1rem 1.2rem 0;border-right:1px solid var(--rule);min-width:0}
.stats > div:last-child{border-right:0}
.stats > div + div{padding-left:1rem}
.stats b{display:block;font:500 1.5rem var(--sans);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stats span{font-size:.85rem;color:var(--mute)}
@media (max-width:700px){.stats{grid-template-columns:1fr 1fr}.stats > div:nth-child(2){border-right:0}.stats > div:nth-child(3){padding-left:0;border-top:1px solid var(--rule)}.stats > div:nth-child(4){border-top:1px solid var(--rule)}}

section.blk{padding-block:clamp(2rem,5vw,3.5rem)}
.hd{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:1rem;margin-bottom:1.4rem;padding-bottom:.8rem;border-bottom:1px solid var(--rule-strong)}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.item{position:relative;background:var(--card);padding:1.1rem;display:flex;flex-direction:column;gap:.5rem}
.item > a.hit{position:absolute;inset:0;z-index:1}
.item .cat{font:400 .68rem var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--teal)}
.item .fig{height:150px;display:flex;align-items:center;justify-content:center;margin:.2rem 0 .3rem}
.item .fig svg{height:100%;width:auto}
.item h3{font-size:1.05rem;font-weight:500}
.item .bl{font-size:.85rem;color:var(--mute);flex:1;line-height:1.5}
.item .row{display:flex;justify-content:space-between;align-items:flex-end;gap:.6rem;padding-top:.6rem;border-top:1px solid var(--rule)}
.item .pr{font:500 1rem var(--sans);font-variant-numeric:tabular-nums}
.item .pr small{display:block;font:400 .7rem var(--mono);color:var(--mute);margin-top:.15rem}
.item .plus{position:relative;z-index:2;border:1px solid var(--rule-strong);background:transparent;color:var(--fg);font:400 .78rem var(--mono);padding:.4rem .7rem;cursor:pointer;white-space:nowrap}
.item .plus:hover{background:var(--teal);border-color:var(--teal);color:var(--teal-ink)}
.v-g{fill:none;stroke:var(--fg);stroke-width:1.4}
.v-cap{fill:var(--teal)} .v-liq{fill:var(--teal-soft)}
.v-t1{fill:var(--fg);font:500 11px var(--mono)} .v-t2{fill:var(--mute);font:400 8px var(--mono)} .v-ln{stroke:var(--rule);stroke-width:1}

/* process */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--rule-strong)}
.proc > div{padding:1.2rem 1.2rem 1.2rem 0;border-right:1px solid var(--rule);min-width:0}
.proc > div + div{padding-left:1.2rem}
.proc > div:last-child{border-right:0}
.proc .n{font:400 .72rem var(--mono);color:var(--teal);display:block;margin-bottom:.5rem}
.proc p{font-size:.88rem;color:var(--mute);margin-top:.4rem}
@media (max-width:800px){.proc{grid-template-columns:1fr 1fr}.proc > div:nth-child(2){border-right:0}.proc > div:nth-child(n+3){border-top:1px solid var(--rule)}.proc > div:nth-child(3){padding-left:0}}
@media (max-width:480px){.proc{grid-template-columns:1fr}.proc > div{border-right:0;padding-left:0}.proc > div + div{border-top:1px solid var(--rule)}}

.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.cols3 > div{min-width:0;border-top:1px solid var(--rule-strong);padding-top:.9rem}
.cols3 p{color:var(--mute);font-size:.92rem;margin-top:.4rem}
@media (max-width:760px){.cols3{grid-template-columns:1fr;gap:1.2rem}}

.ph{padding-block:clamp(2rem,4vw,3rem) 1.2rem;border-bottom:1px solid var(--rule);margin-bottom:1.5rem}
.ph h1{margin-top:.5rem}
.ph .lead{margin-top:.8rem}

.filt{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1rem}
.filt input,.filt select,.fm input,.fm select,.fm textarea{font:400 .95rem var(--sans);color:var(--fg);background:var(--card);border:1px solid var(--rule);padding:.6rem .8rem;min-width:0;border-radius:0}
.filt input{flex:1 1 240px}
.filt input:focus,.fm input:focus,.fm select:focus,.fm textarea:focus{border-color:var(--teal);outline:none}
.chipz{display:flex;flex-wrap:wrap;gap:.3rem;margin-bottom:1.2rem}
.chipz button{font:400 .78rem var(--mono);border:1px solid var(--rule);background:var(--card);color:var(--fg);padding:.5rem .8rem;cursor:pointer;margin:0;outline-offset:-2px}
.chipz button[aria-pressed="true"]{background:var(--teal);color:var(--teal-ink)}

.cnt{font:400 .75rem var(--mono);color:var(--mute)}

/* pdp */
.pdp{display:grid;grid-template-columns:.8fr 1.2fr;gap:3rem;padding-block:1.5rem 3rem;align-items:start}
.pdp > *{min-width:0}
.pdp .fig{border:1px solid var(--rule);background:var(--card);aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;max-width:100%}
.pdp .fig svg{height:70%;width:auto}
.crumbs{font:400 .72rem var(--mono);color:var(--mute);display:flex;gap:.5rem;text-transform:uppercase;letter-spacing:.1em;flex-wrap:wrap}
.crumbs a{text-decoration:none}.crumbs a:hover{color:var(--teal)}
.pdp h1{margin-top:.6rem}
.pdp .bl{font-size:1rem;color:var(--mute);margin-top:.6rem;font-family:var(--mono);font-size:.88rem}
.opt{margin-top:1.4rem}
.opt .lab{display:block;margin-bottom:.5rem}
.seg{display:flex;flex-wrap:wrap;gap:.4rem}
.seg label{cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:inline-flex;flex-direction:column;padding:.5rem .85rem;border:1px solid var(--rule);background:var(--card);font-size:.92rem;line-height:1.3}
.seg span small{font:400 .72rem var(--mono);color:var(--mute)}
.seg input:checked + span{border-color:var(--teal);box-shadow:inset 0 0 0 1px var(--teal)}
.seg input:focus-visible + span{outline:2px solid var(--teal);outline-offset:2px}
.buy{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin-top:1.5rem;padding:1rem;border:1px solid var(--rule-strong)}
.buy .tot{font:500 1.6rem var(--sans);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.buy .ea{font:400 .74rem var(--mono);color:var(--mute)}
.buy .b{margin-left:auto}
.specs{margin-top:1.6rem;border-top:1px solid var(--rule-strong);font-size:.9rem}
.specs div{display:grid;grid-template-columns:160px 1fr;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--rule)}
.specs dt{color:var(--mute)} .specs dd{margin:0;font-family:var(--mono);font-size:.84rem;overflow-wrap:anywhere}
.note{margin-top:1.3rem;padding:.9rem 1rem;background:var(--warn-soft);font-size:.86rem;border-left:3px solid var(--teal)}
@media (max-width:800px){.pdp{grid-template-columns:1fr;gap:1.5rem}.pdp .fig{max-width:380px;aspect-ratio:1/1}.specs div{grid-template-columns:120px 1fr}}

.txt{max-width:68ch}
.txt h2{font-size:1.25rem;margin:2rem 0 .6rem;padding-top:.8rem;border-top:1px solid var(--rule)}
.txt h3{margin:1.4rem 0 .4rem}
.txt p,.txt li{color:var(--mute)}
.txt p + p{margin-top:.8rem}
.txt ul,.txt ol{padding-left:1.2rem}
.txt li + li{margin-top:.3rem}
.txt a{color:var(--teal)}
.txt strong{color:var(--fg)}
.tbl{overflow-x:auto;margin-top:1rem}
table{border-collapse:collapse;width:100%;font-size:.9rem;font-variant-numeric:tabular-nums}
th,td{text-align:left;padding:.6rem .7rem;border-bottom:1px solid var(--rule)}
th{font:400 .7rem var(--mono);color:var(--mute);text-transform:uppercase;letter-spacing:.1em;border-bottom:1px solid var(--rule-strong)}
.tag{display:inline-block;font:400 .7rem var(--mono);padding:.1rem .5rem;border:1px solid var(--rule);color:var(--mute)}

details{border-bottom:1px solid var(--rule)}
summary{cursor:pointer;list-style:none;padding:.9rem 2rem .9rem 0;font-weight:500;font-size:.98rem;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:.2rem;top:.75rem;font:400 1.2rem var(--mono);color:var(--teal)}
details[open] summary::after{content:"−"}
details p{padding:0 0 1rem;color:var(--mute);max-width:66ch;font-size:.93rem}
.faqgrp h2{font-size:.78rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--mute);margin:2.2rem 0 .3rem;font-weight:400}

.fm{display:grid;gap:.9rem}
.fm .two{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
.fm label{display:grid;gap:.3rem;font-size:.85rem;color:var(--mute)}
.fm input,.fm select,.fm textarea{width:100%;color:var(--fg)}
.fm textarea{min-height:130px}
.fm .chk{display:flex;gap:.6rem;align-items:flex-start;font-size:.88rem}
.fm .chk input{width:auto;margin-top:.25rem}
@media (max-width:560px){.fm .two{grid-template-columns:1fr}}
.bagwrap{display:grid;grid-template-columns:1.5fr 1fr;gap:2.5rem;align-items:start;padding-block:.5rem 3rem}
.bagwrap > *{min-width:0}
@media (max-width:900px){.bagwrap{grid-template-columns:1fr}}
.cline{display:grid;grid-template-columns:64px 1fr auto;gap:1rem;align-items:center;padding:.9rem 0;border-bottom:1px solid var(--rule)}
.cline .art{height:64px;display:flex;align-items:center;justify-content:center;border:1px solid var(--rule);background:var(--card)}
.cline .art svg{height:85%;width:auto}
.line h4 a{text-decoration:none;font-weight:500}
.cline .m{font:400 .74rem var(--mono);color:var(--mute)}
.qty{display:inline-flex;align-items:center;border:1px solid var(--rule);margin-top:.4rem}
.qty button{background:none;border:0;color:var(--fg);width:1.9rem;height:1.9rem;font:400 1rem var(--mono);cursor:pointer}
.qty span{min-width:1.6rem;text-align:center;font:400 .85rem var(--mono)}
.cline .lt{font-variant-numeric:tabular-nums;text-align:right;font-weight:500}
.sum{border:1px solid var(--rule-strong);padding:1.2rem;background:var(--card)}
.sum .r{display:flex;justify-content:space-between;gap:1rem;padding:.3rem 0;font-variant-numeric:tabular-nums;font-size:.93rem}
.sum .r.big{font-size:1.2rem;font-weight:500;border-top:1px solid var(--rule-strong);margin-top:.5rem;padding-top:.7rem}
.sum .promo-in{display:flex;gap:.4rem;margin:.8rem 0}
.sum .promo-in input{flex:1;min-width:0;font:400 .9rem var(--mono);text-transform:uppercase;border:1px solid var(--rule);background:var(--bg);color:var(--fg);padding:.5rem .7rem}
.empty{padding:2rem 0;color:var(--mute)}
.pay{border:1px solid var(--teal);padding:1.4rem;margin-top:1rem;background:var(--card)}
.pay .ref{font:500 1.6rem var(--mono);letter-spacing:.04em;color:var(--teal)}
.pay dl{display:grid;grid-template-columns:auto 1fr;gap:.4rem 1rem;margin:1rem 0;font-size:.92rem}
.pay dt{color:var(--mute)} .pay dd{margin:0;font-family:var(--mono);overflow-wrap:anywhere}

.calc{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
.calc > *{min-width:0}
.out{border:1px solid var(--rule-strong);background:var(--card)}
.out > div{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;padding:.8rem 1rem;border-bottom:1px solid var(--rule)}
.out > div:last-child{border-bottom:0}
.out .k{font:400 .72rem var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--mute)}
.out .v{font:500 1.3rem var(--sans);font-variant-numeric:tabular-nums}
@media (max-width:760px){.calc{grid-template-columns:1fr}}

.ruo{border-top:1px solid var(--rule-strong);font:400 .76rem var(--mono);text-transform:uppercase;letter-spacing:.08em}
.ruo .in{padding-block:.6rem}
.foot{border-top:1px solid var(--rule)}
.foot .in{padding-block:2.5rem 1.5rem;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.foot .in > div{min-width:0}
.foot h4{font:400 .7rem var(--mono);text-transform:uppercase;letter-spacing:.12em;color:var(--mute);margin-bottom:.7rem}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:.4rem;font-size:.9rem}
.foot a{text-decoration:none}.foot a:hover{color:var(--teal)}
.foot p{font-size:.85rem;color:var(--mute);margin-top:.9rem;max-width:40ch}
.foot .fine{grid-column:1/-1;border-top:1px solid var(--rule);padding-top:1rem;font:400 .74rem var(--mono);color:var(--mute);display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem}
@media (max-width:860px){.foot .in{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.foot .in{grid-template-columns:1fr}}
.toast{position:fixed;left:50%;bottom:calc(1rem + env(safe-area-inset-bottom,0px));transform:translate(-50%,150%);background:var(--fg);color:var(--bg);padding:.7rem 1.1rem;font:400 .85rem var(--mono);z-index:20;transition:transform .2s;max-width:calc(100% - 32px)}
.toast.on{transform:translate(-50%,0)}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}