html{-webkit-text-size-adjust:100%}body{margin:0}img{max-width:100%}[hidden]{display:none!important}:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}

:root{
  --ground:#EEF1EC; --surface:#FFFFFF; --sunk:#E4E9E2; --ink:#16201B; --muted:#56655D; --line:#D3DAD2;
  --accent:#1E5E4E; --accent-ink:#FFFFFF; --accent-soft:#D6E8E1;
  --gS:#6A3FA6; --gA:#1C7A4A; --gB:#2A6A9E; --gC:#A96E12; --gD:#C0521B; --gF:#B3261E; --gN:#7A8680;
  --warn-bg:#FBF1DC; --warn-ink:#6E4A07; --bad-bg:#FBE4E1; --bad-ink:#8A1C14;
  --display:"Bricolage Grotesque", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --body:"Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono:"JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --r:10px; --g-ink:#FFFFFF;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --ground:#0F1512; --surface:#18201C; --sunk:#111915; --ink:#E4EBE6; --muted:#9AAAA1; --line:#2B3731;
    --accent:#7CCBB4; --accent-ink:#0B1A15; --accent-soft:#1D3A31;
    --gS:#B59AE8; --gA:#6FD39C; --gB:#7FB6E6; --gC:#E6B356; --gD:#F0905A; --gF:#F2877D; --gN:#8F9C95;
    --warn-bg:#3A2E12; --warn-ink:#F0D39A; --bad-bg:#3F1C19; --bad-ink:#F7B8B1; --g-ink:#0F1512;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#0F1512; --surface:#18201C; --sunk:#111915; --ink:#E4EBE6; --muted:#9AAAA1; --line:#2B3731;
  --accent:#7CCBB4; --accent-ink:#0B1A15; --accent-soft:#1D3A31;
  --gS:#B59AE8; --gA:#6FD39C; --gB:#7FB6E6; --gC:#E6B356; --gD:#F0905A; --gF:#F2877D; --gN:#8F9C95;
  --warn-bg:#3A2E12; --warn-ink:#F0D39A; --bad-bg:#3F1C19; --bad-ink:#F7B8B1; --g-ink:#0F1512;
}
*{box-sizing:border-box}
body{background:var(--ground);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
h1,h2,h3{font-family:var(--display);line-height:1.1;text-wrap:balance;margin:0}
.wrap{max-width:1120px;margin:0 auto;padding-inline:20px}
@media (max-width:480px){.wrap{padding-inline:16px}}

/* Header */
header.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--ground) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:16px;min-height:60px;flex-wrap:wrap;padding-block:8px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);margin-right:auto}
.brand .mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--ink);color:var(--ground);font:800 18px/1 var(--display)}
.brand b{font:800 19px/1 var(--display);letter-spacing:-.01em}
nav.tabs{display:flex;gap:4px;flex-wrap:wrap}
nav.tabs a{padding:8px 12px;border-radius:8px;color:var(--muted);text-decoration:none;font-weight:600;font-size:15px}
nav.tabs a:hover{color:var(--ink);background:var(--sunk)}
nav.tabs a[aria-current="page"]{color:var(--ink);background:var(--surface);box-shadow:inset 0 0 0 1px var(--line)}

main{padding-block:28px 64px}
@media (max-width:600px){header.top{position:static}}
.eyebrow{font:700 12px/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.lede{color:var(--muted);max-width:62ch;margin:10px 0 0}

/* Intro */
.intro{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:end;margin-bottom:28px}
.intro h1{font-size:clamp(34px,5vw,54px);font-weight:800;letter-spacing:-.025em}
.scale{display:flex;gap:6px;flex-wrap:wrap}
.scale div{flex:1 1 44px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px 6px;text-align:center}
.scale small{display:block;font-size:11px;color:var(--muted);line-height:1.25;margin-top:4px}
@media (max-width:800px){.intro{grid-template-columns:1fr}}

/* Grade badge */
.g{display:inline-grid;place-items:center;min-width:34px;height:34px;padding:0 6px;border-radius:7px;font:800 19px/1 var(--display);color:var(--g-ink);background:var(--gN)}
.g.S{background:var(--gS)}.g.A{background:var(--gA)}.g.B{background:var(--gB)}.g.C{background:var(--gC)}.g.D{background:var(--gD)}.g.F{background:var(--gF)}
.g.none{background:transparent;color:var(--muted);box-shadow:inset 0 0 0 1.5px var(--line);font-size:14px}
.g.lg{min-width:64px;height:64px;font-size:38px;border-radius:12px}

.ev{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);white-space:nowrap}
.ev i{display:inline-flex;gap:2px}
.ev i span{width:7px;height:12px;border-radius:2px;background:var(--line)}
.ev i span.on{background:var(--ink)}

/* Goals */
.goalpick{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:8px;margin:0 0 24px}
.goalpick button{all:unset;cursor:pointer;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.goalpick button b{font:700 16px/1.2 var(--display)}
.goalpick button span{font-size:13px;color:var(--muted);line-height:1.35}
.goalpick button:hover{border-color:var(--muted)}
.goalpick button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--ground)}
.goalpick button[aria-pressed="true"] span{color:color-mix(in srgb,var(--ground) 75%,transparent)}
.goalpick button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

.goalbody{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.lane h3{font:700 13px/1 var(--body);letter-spacing:.1em;text-transform:uppercase;display:flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--muted)}
.lane h3::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--c)}
.lane.top{--c:var(--gA)}.lane.consider{--c:var(--gC)}.lane.skip{--c:var(--gF)}
.lane .empty{border:1.5px dashed var(--line);border-radius:var(--r);padding:14px;color:var(--muted);font-size:14px}
.pcard{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;text-decoration:none;color:var(--ink);margin-bottom:8px}
.pcard:hover{border-color:var(--muted)}
.pcard .g{grid-row:span 2}
.pcard b{font:700 17px/1.2 var(--display)}
.pcard small{color:var(--muted);font-size:13px;line-height:1.35}
.pcard .flag{grid-column:2;font-size:12px;font-weight:600;color:var(--warn-ink)}
.goalnote{grid-column:1/-1;display:grid;grid-template-columns:1.4fr 1fr;gap:16px;margin-top:8px}
.note{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.note p{margin:6px 0 0}
.note.q{background:var(--accent-soft);border-color:transparent}
@media (max-width:860px){.goalbody,.goalnote{grid-template-columns:1fr}}

/* Peptide index */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:0 0 16px}
.filters input{flex:1 1 220px;font:inherit;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.chip{all:unset;cursor:pointer;padding:7px 12px;border-radius:999px;border:1px solid var(--line);font-size:14px;font-weight:600;background:var(--surface)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--ground);border-color:var(--ink)}
.chip:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.row{display:grid;grid-template-columns:44px minmax(0,1.3fr) minmax(0,1.6fr) 150px;gap:14px;align-items:center;padding:12px 16px;border-top:1px solid var(--line);text-decoration:none;color:var(--ink)}
.row:first-child{border-top:0}
.row:hover{background:var(--sunk)}
.row b{font:700 17px/1.2 var(--display);display:block}
.row small{color:var(--muted);font-size:13px}
.row .st{font-size:13px;color:var(--muted);line-height:1.4}
@media (max-width:760px){.row{grid-template-columns:44px 1fr}.row .st,.row .ev{grid-column:2}}

/* Detail */
.crumb{font-size:14px;margin-bottom:14px;display:inline-block}
.detail{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}
.dhead{display:flex;gap:16px;align-items:center;margin-bottom:6px}
.dhead h1{font-size:clamp(32px,4.5vw,48px);font-weight:800;letter-spacing:-.02em}
.aka{color:var(--muted);font-size:15px;margin:0}
.summary{font-size:18px;line-height:1.55;max-width:62ch;margin:16px 0 22px}
.sec{margin-top:26px}
.sec h2{font-size:22px;font-weight:700;margin-bottom:10px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.two{grid-template-columns:1fr}}
.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.box h3{font:700 13px/1 var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.box ul{margin:0;padding-left:18px}
.box li{margin:4px 0}
.box.good h3{color:var(--gA)} .box.bad h3{color:var(--gF)}
.take{background:var(--accent-soft);border-radius:var(--r);padding:18px 20px}
.take p{margin:0;font-size:17px}
.dose{font-family:var(--mono);font-size:14px}
.doses li{margin:6px 0}
.lbl{display:inline-block;font:700 11px/1 var(--body);letter-spacing:.08em;text-transform:uppercase;padding:4px 6px;border-radius:4px;background:var(--sunk);color:var(--muted);margin-bottom:6px}
.cites{margin:10px 0 0;padding-left:18px;font-size:14px}
.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 80px);display:flex;flex-direction:column;gap:12px}
@media (max-width:900px){.detail{grid-template-columns:1fr}.side{position:static}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14px;margin:0}
.kv dt{color:var(--muted)} .kv dd{margin:0;font-weight:600}
.vids{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.vids a{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start;text-decoration:none;color:var(--ink);font-size:14px;line-height:1.35}
.vids a:hover span{text-decoration:underline}
.play{width:28px;height:20px;border-radius:5px;background:#D6281C;display:grid;place-items:center;margin-top:1px}
.play::after{content:"";border-left:8px solid #fff;border-top:5px solid transparent;border-bottom:5px solid transparent;margin-left:2px}
.btn{all:unset;box-sizing:border-box;cursor:pointer;display:inline-flex;justify-content:center;align-items:center;gap:8px;padding:10px 14px;border-radius:8px;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:15px;text-decoration:none;text-align:center}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.btn:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.callout{border-radius:8px;padding:10px 12px;font-size:14px;background:var(--warn-bg);color:var(--warn-ink)}
.callout.fact{margin-top:10px}
.dose-note{background:var(--warn-bg);color:var(--warn-ink);border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:10px}
.legend{display:grid;grid-template-columns:auto 1fr;gap:6px 10px;align-items:center;font-size:13px;color:var(--muted);margin:0 0 12px}
.basis{display:inline-block;font:700 11px/1.2 var(--body);letter-spacing:.04em;text-transform:uppercase;padding:4px 7px;border-radius:5px;white-space:nowrap}
.basis.trial{background:color-mix(in srgb,var(--gA) 18%,transparent);color:var(--gA)}
.basis.clinic{background:color-mix(in srgb,var(--gB) 18%,transparent);color:var(--gB)}
.basis.community{background:color-mix(in srgb,var(--gD) 18%,transparent);color:var(--gD)}
.protos{display:grid;gap:10px}
.proto{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 14px}
.proto-h{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:8px}
.proto-h b{font:700 16px/1.25 var(--display)}
.proto-d{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px 14px;margin:0}
.proto-d dt{font-size:12px;color:var(--muted);font-weight:600}
.proto-d dd{margin:2px 0 0;font-size:14px;line-height:1.4}
.proto-d dd.mono{font-family:var(--mono);font-size:13.5px}
@media (max-width:700px){.proto-d{grid-template-columns:1fr 1fr}}
.credit{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;justify-content:space-between;border:1px solid var(--line);background:var(--surface);border-radius:var(--r);padding:12px 14px;margin:0 0 18px;font-size:15px}
.credit.home{margin:-8px 0 22px}
.credit-actions{display:flex;flex-wrap:wrap;gap:8px}
.credit .btn{font-size:14px;padding:8px 12px}
.src{font-size:13px;color:var(--muted);margin:10px 0 0;line-height:1.5}
.take .src{margin-top:10px}
.vmeta{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.btn.sub{margin-top:12px;width:100%;font-size:14px;padding:8px 12px}
.tierbox ul{margin:0 0 14px;padding-left:18px}.tierbox li{margin:6px 0}
.segbtn{font-size:14px;padding:8px 12px;gap:10px;justify-content:flex-start;text-align:left}
.hist p{margin:0 0 10px;max-width:68ch}.hist p:last-child{margin-bottom:0}

/* Calculator */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:24px;align-items:start}
@media (max-width:860px){.calc{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-weight:700;font-size:14px}
.field .hint{font-size:13px;color:var(--muted)}
.inrow{display:flex;gap:8px}
.inrow input,.inrow select,.field>select{font:600 17px/1 var(--mono);padding:11px 12px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);min-width:0}
.inrow input{flex:1 1 auto;width:100%}
.inrow select{flex:0 0 90px}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.seg button{all:unset;cursor:pointer;flex:1;text-align:center;padding:10px 6px;font:600 14px/1 var(--mono);border-left:1px solid var(--line)}
.seg button:first-child{border-left:0}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--ground)}
.seg button:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}
.result{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.big{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.big output{font:800 clamp(56px,9vw,84px)/1 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.big span{font-weight:700;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:16px}
@media (max-width:480px){.stats dd{font-size:14px}.stats div{padding:8px}}
.stats div{background:var(--sunk);border-radius:8px;padding:10px 12px}
.stats dt{font-size:12px;color:var(--muted);font-weight:600}
.stats dd{margin:2px 0 0;font:700 16px/1.2 var(--mono);font-variant-numeric:tabular-nums}
.syr{margin-top:18px;overflow-x:auto}
.syr svg{display:block;width:100%;min-width:320px;height:auto}
.alerts{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.alerts .bad{background:var(--bad-bg);color:var(--bad-ink)}
.howto{margin-top:18px;font-size:14px;color:var(--muted)}
.howto code{font-family:var(--mono);color:var(--ink)}

/* About */
.prose{max-width:68ch}
.prose h2{font-size:26px;margin:32px 0 10px}
.prose p,.prose li{margin:8px 0}
footer{border-top:1px solid var(--line);padding-block:22px 40px;color:var(--muted);font-size:13px}
footer p{max-width:80ch;margin:6px 0}
@media (prefers-reduced-motion:no-preference){ .view{animation:fade .25s ease} @keyframes fade{from{opacity:.4}to{opacity:1}} }