/* PeptideWiki — design tokens */
:root {
  --paper: #f3f6f5;
  --surface: #ffffff;
  --ink: #132723;
  --ink-2: #4b5f59;
  --ink-3: #6f817b;
  --rule: #d2dcd8;
  --rule-strong: #b3c2bc;
  --link: #1b58a2;
  --link-hover: #0f3e78;
  --focus: #1b58a2;
  --note-bg: #eaf1ef;
  --warn-bg: #fbf3e2;
  --warn-ink: #6b4a06;
  --r-hyd: #c9960f;
  --r-acid: #cf432c;
  --r-base: #2d5fcc;
  --r-polar: #23935f;
  --r-special: #8656bb;
  --r-nonstd: #5f6f6a;
  --tile-ink: #ffffff;
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --measure: 40rem;
  --gutter: 16px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1a18; --surface: #14231f; --ink: #e2ebe8; --ink-2: #a3b5af; --ink-3: #7d918b;
    --rule: #263833; --rule-strong: #375049; --link: #86b4f2; --link-hover: #b3d0f8; --focus: #86b4f2;
    --note-bg: #17302a; --warn-bg: #2d2611; --warn-ink: #e9cf8d;
    --r-hyd: #b88a10; --r-acid: #c4462f; --r-base: #3c6bd3; --r-polar: #23885a; --r-special: #8459b8; --r-nonstd: #55655f;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1a18; --surface: #14231f; --ink: #e2ebe8; --ink-2: #a3b5af; --ink-3: #7d918b;
  --rule: #263833; --rule-strong: #375049; --link: #86b4f2; --link-hover: #b3d0f8; --focus: #86b4f2;
  --note-bg: #17302a; --warn-bg: #2d2611; --warn-ink: #e9cf8d;
  --r-hyd: #b88a10; --r-acid: #c4462f; --r-base: #3c6bd3; --r-polar: #23885a; --r-special: #8459b8; --r-nonstd: #55655f;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.65 var(--serif);
  font-optical-sizing: auto;
}
img, svg { max-width: 100%; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--link-hover); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }
.wrap { max-width: 72rem; margin: 0 auto; padding: 0 var(--gutter); }

/* Header */
.site-head { background: var(--surface); border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; align-items: center; gap: 20px; min-height: 64px; flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 600 1.2rem/1 var(--sans); letter-spacing: -0.01em; }
.brand-mark { display: flex; gap: 2px; }
.brand-mark span { width: 10px; height: 22px; border-radius: 2px; display: block; }
.nav { display: flex; gap: 18px; font: 500 0.95rem/1 var(--sans); flex-wrap: wrap; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }
.head-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.theme-btn { font: 500 0.85rem var(--sans); background: none; border: 1px solid var(--rule-strong); color: var(--ink-2); border-radius: 6px; padding: 6px 10px; cursor: pointer; }

/* Search */
.search { position: relative; }
.search input {
  font: 400 0.95rem var(--sans); color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule-strong); border-radius: 6px; padding: 8px 12px; width: 15rem; max-width: 100%;
}
.search-results { position: absolute; right: 0; top: calc(100% + 4px); width: min(26rem, 90vw); background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 8px; box-shadow: 0 8px 24px rgba(10, 30, 25, .14); list-style: none; margin: 0; padding: 4px; z-index: 20; max-height: 60vh; overflow: auto; }
.search-results[hidden] { display: none; }
.search-results a { display: block; padding: 8px 10px; border-radius: 6px; text-decoration: none; color: var(--ink); font: 400 0.92rem/1.35 var(--sans); }
.search-results a:hover, .search-results a[aria-selected="true"] { background: var(--note-bg); }
.search-results small { display: block; color: var(--ink-3); }

/* Typography */
h1, h2, h3, h4 { font-family: var(--sans); color: var(--ink); line-height: 1.2; letter-spacing: -0.015em; }
h1 { font-size: clamp(2rem, 4.5vw, 2.85rem); font-weight: 700; margin: 0 0 0.4em; }
h2 { font-size: 1.5rem; font-weight: 650; margin: 2.2em 0 0.6em; padding-bottom: 0.3em; border-bottom: 1px solid var(--rule); }
h3 { font-size: 1.15rem; font-weight: 650; margin: 1.6em 0 0.4em; }
p { margin: 0 0 1em; }
.lead { font-size: 1.2rem; line-height: 1.55; color: var(--ink); }
.muted { color: var(--ink-2); }
small, .small { font-size: 0.875rem; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--note-bg); padding: 0.05em 0.3em; border-radius: 3px; }
ul, ol { padding-left: 1.3em; }
li { margin-bottom: 0.35em; }

/* Breadcrumbs & meta */
.crumbs { font: 400 0.875rem var(--sans); color: var(--ink-3); margin: 28px 0 14px; }
.crumbs a { color: var(--ink-2); }
.crumbs span[aria-hidden] { margin: 0 6px; }
.meta-line { font: 400 0.875rem var(--sans); color: var(--ink-3); margin-bottom: 1.4em; }

/* Article layout */
.article { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; padding-bottom: 64px; }
.article-main { max-width: var(--measure); min-width: 0; }
@media (min-width: 1000px) {
  .article.has-aside { grid-template-columns: minmax(0, var(--measure)) 21rem; justify-content: space-between; }
  .article-aside { position: sticky; top: 16px; align-self: start; }
}
.toc { font: 400 0.92rem/1.4 var(--sans); border-left: 2px solid var(--rule); padding: 2px 0 2px 14px; margin: 1.5em 0 2em; }
.toc strong { display: block; margin-bottom: 6px; font-weight: 600; }
.toc ol { margin: 0; padding-left: 1.1em; }
.toc li { margin: 0.2em 0; }

/* Infobox */
.infobox { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; font: 400 0.9rem/1.45 var(--sans); }
.infobox-head { padding: 14px 16px 12px; border-bottom: 1px solid var(--rule); }
.infobox-head h2 { all: unset; display: block; font: 650 1.15rem/1.2 var(--sans); }
.infobox-head p { margin: 4px 0 0; color: var(--ink-3); font-size: 0.85rem; }
.infobox-seq { padding: 14px 16px; border-bottom: 1px solid var(--rule); }
.infobox dl { margin: 0; padding: 4px 16px 10px; display: grid; grid-template-columns: 7.5rem 1fr; }
.infobox dt { color: var(--ink-3); padding: 7px 8px 7px 0; border-bottom: 1px solid var(--rule); }
.infobox dd { margin: 0; padding: 7px 0; border-bottom: 1px solid var(--rule); overflow-wrap: anywhere; }
.infobox dl > :nth-last-child(-n+2) { border-bottom: 0; }
.infobox-note { padding: 10px 16px 14px; color: var(--ink-2); font-size: 0.84rem; border-top: 1px solid var(--rule); }

/* Residue tiles — the signature element */
.seq { display: flex; flex-wrap: wrap; gap: 3px; font-family: var(--mono); }
.seq .t { display: inline-flex; align-items: center; justify-content: center; min-width: 1.6rem; height: 1.85rem; padding: 0 3px; border-radius: 4px; font: 500 0.85rem/1 var(--mono); color: var(--tile-ink); position: relative; }
.seq .t.d::before { content: "D"; position: absolute; top: 1px; left: 2px; font-size: 0.5rem; opacity: .85; }
.seq .cap { display: inline-flex; align-items: center; padding: 0 6px; height: 1.85rem; border: 1px dashed var(--rule-strong); border-radius: 4px; font: 500 0.75rem var(--mono); color: var(--ink-2); }
.seq.sm .t { min-width: 0.95rem; height: 1.15rem; font-size: 0.62rem; border-radius: 2px; padding: 0 1px; }
.seq.sm .t.d::before { display: none; }
.seq.sm .cap { height: 1.15rem; font-size: 0.6rem; padding: 0 3px; }
.seq.sm { gap: 2px; }
.t.hyd { background: var(--r-hyd); } .t.acid { background: var(--r-acid); } .t.base { background: var(--r-base); }
.t.polar { background: var(--r-polar); } .t.special { background: var(--r-special); } .t.nonstd { background: var(--r-nonstd); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 10px; font: 400 0.78rem var(--sans); color: var(--ink-2); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.seq-text { font: 400 0.8rem/1.4 var(--mono); color: var(--ink-2); margin-top: 8px; overflow-wrap: anywhere; }

/* Callouts */
.callout { background: var(--note-bg); border-radius: 8px; padding: 14px 16px; margin: 1.5em 0; font: 400 0.95rem/1.55 var(--sans); }
.callout.warn { background: var(--warn-bg); color: var(--warn-ink); }
.callout p:last-child { margin-bottom: 0; }

/* Sourcing box */
.sourcing { border: 1px solid var(--rule-strong); border-radius: 10px; padding: 14px 16px; margin: 2em 0; background: var(--surface); font: 400 0.95rem/1.5 var(--sans); }
.sourcing h2 { all: unset; display: block; font: 650 1rem/1.3 var(--sans); margin-bottom: 6px; }
.sourcing p { margin: 0 0 6px; }
.sourcing .disc { font-size: 0.82rem; color: var(--ink-3); margin: 8px 0 0; }

/* Tables */
.table-wrap { overflow-x: auto; margin: 1.2em 0 1.8em; border: 1px solid var(--rule); border-radius: 8px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font: 400 0.92rem/1.45 var(--sans); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { font-weight: 600; background: var(--paper); position: sticky; top: 0; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
tbody th { font-weight: 600; }
.index-table td:first-child a { font-weight: 600; }
.index-table .seq { max-width: 22rem; }
.cmp-table th[scope="row"] { color: var(--ink-2); font-weight: 500; width: 11rem; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--rule); padding: 12px 0; }
.faq summary { cursor: pointer; font: 600 1rem/1.4 var(--sans); list-style-position: outside; }
.faq details p { margin: 10px 0 0; }

/* References & cite */
.refs { font-size: 0.95rem; }
.refs li { margin-bottom: 0.6em; }
.cite { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: 12px 14px; font: 400 0.88rem/1.5 var(--sans); margin: 1.5em 0; }
.cite p { margin: 0 0 8px; color: var(--ink-2); }
.btn { font: 600 0.9rem var(--sans); background: var(--ink); color: var(--paper); border: 0; border-radius: 6px; padding: 9px 14px; cursor: pointer; }
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--rule-strong); }

/* Home */
.hero { padding: 56px 0 36px; display: grid; gap: 28px; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.1fr 1fr; align-items: center; padding: 72px 0 48px; } }
.hero h1 { font-size: clamp(2.3rem, 5.5vw, 3.6rem); max-width: 13ch; }
.hero .search input { width: 100%; font-size: 1.05rem; padding: 13px 16px; border-radius: 8px; background: var(--surface); }
.hero .search { max-width: 30rem; }
.hero .search-results { left: 0; right: auto; width: 100%; }
.specimen { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 20px; }
.specimen .seq .t { height: 2.6rem; min-width: 2.2rem; font-size: 1.05rem; }
.specimen-head { display: flex; justify-content: space-between; gap: 12px; font: 400 0.9rem var(--sans); color: var(--ink-2); margin-bottom: 14px; flex-wrap: wrap; }
.specimen-head a { font-weight: 600; }
.specimen-props { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; font: 400 0.85rem/1.3 var(--sans); }
.specimen-props div { border-top: 1px solid var(--rule); padding-top: 8px; }
.specimen-props b { display: block; font: 600 1.05rem var(--sans); color: var(--ink); }
.specimen-props span { color: var(--ink-3); }
.section { padding: 8px 0 40px; }
.section > h2 { border: 0; margin-top: 0.6em; }
.cat-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0 32px; }
@media (min-width: 720px) { .cat-list { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .cat-list { grid-template-columns: 1fr 1fr 1fr; } }
.cat-list li { border-top: 1px solid var(--rule); padding: 14px 0; margin: 0; }
.cat-list a { font: 600 1.05rem var(--sans); }
.cat-list p { margin: 4px 0 0; font: 400 0.9rem/1.45 var(--sans); color: var(--ink-2); }
.cat-list .names { color: var(--ink-3); font-size: 0.85rem; margin-top: 6px; }
.split { display: grid; gap: 32px; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } }
.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li { border-top: 1px solid var(--rule); padding: 12px 0; margin: 0; }
.plain-list a { font: 600 1rem var(--sans); }
.plain-list p { margin: 3px 0 0; font: 400 0.9rem/1.45 var(--sans); color: var(--ink-2); }

/* Tools */
.tool { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 20px; margin: 1.5em 0; font-family: var(--sans); }
.tool h2 { margin-top: 0; border: 0; padding: 0; font-size: 1.2rem; }
.tool label { display: block; font: 500 0.88rem var(--sans); color: var(--ink-2); margin-bottom: 4px; }
.tool input[type="number"], .tool input[type="text"], .tool select, .tool textarea {
  width: 100%; font: 400 1rem var(--sans); color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule-strong); border-radius: 6px; padding: 9px 10px;
}
.tool textarea { font-family: var(--mono); min-height: 5.5rem; resize: vertical; }
.field-row { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); margin-bottom: 14px; }
.check { display: flex; gap: 8px; align-items: center; font: 400 0.92rem var(--sans); color: var(--ink); }
.check input { width: 1.05rem; height: 1.05rem; }
.out { background: var(--paper); border-radius: 8px; padding: 12px 14px; font: 400 0.95rem/1.5 var(--sans); }
.out b { font-size: 1.2rem; font-weight: 650; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; margin: 14px 0; }
.stat-grid div { background: var(--surface); padding: 10px 12px; }
.stat-grid span { display: block; font-size: 0.8rem; color: var(--ink-3); }
.stat-grid b { font: 600 1.05rem var(--sans); overflow-wrap: anywhere; }
.flags { list-style: none; padding: 0; margin: 10px 0 0; }
.flags li { padding: 8px 0; border-top: 1px solid var(--rule); font-size: 0.92rem; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 14px; }
.presets button { font: 500 0.82rem var(--sans); background: var(--paper); border: 1px solid var(--rule-strong); color: var(--ink); border-radius: 999px; padding: 5px 11px; cursor: pointer; }
.presets button:hover { border-color: var(--ink-2); }
.err { color: var(--r-acid); font-size: 0.9rem; }

/* Glossary */
.gloss dt { font: 650 1rem var(--sans); margin-top: 1.1em; }
.gloss dd { margin: 4px 0 0; }
.az { display: flex; flex-wrap: wrap; gap: 6px; font: 600 0.9rem var(--sans); margin: 1em 0; }
.az a { text-decoration: none; padding: 2px 7px; border: 1px solid var(--rule); border-radius: 4px; }

/* Footer */
.site-foot { border-top: 1px solid var(--rule); background: var(--surface); padding: 36px 0 44px; font: 400 0.9rem/1.55 var(--sans); color: var(--ink-2); }
.foot-grid { display: grid; gap: 28px; }
@media (min-width: 800px) { .foot-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-foot h2 { all: unset; display: block; font: 600 0.92rem var(--sans); color: var(--ink); margin-bottom: 8px; }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot li { margin: 4px 0; }
.site-foot a { color: var(--ink-2); }
.ruo { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--rule); font-size: 0.84rem; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
@media print { .site-head, .site-foot, .sourcing, .article-aside .cite, .theme-btn { display: none; } body { background: #fff; } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.stat-grid { background: var(--surface); gap: 0; }
.stat-grid div { border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.infobox-inline { display: block; margin: 0 0 1.5em; }
@media (min-width: 1000px) { .infobox-inline { display: none; } }
@media (max-width: 999px) { .article-aside { display: none; } }
@media (max-width: 720px) {
  .site-head .wrap { gap: 10px; }
  .nav { flex-wrap: nowrap; overflow-x: auto; width: 100%; order: 3; gap: 16px; scrollbar-width: none; }
  .head-tools { margin-left: auto; }
  .head-tools .search input { width: 9.5rem; }
}
/* Reconstitution calculator */
.recon-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .recon-grid { grid-template-columns: 1fr 1fr; } .recon-grid > div:nth-child(3) { grid-column: 1 / -1; max-width: 50%; } }
.recon-grid .presets { margin: 8px 0 0; }
.presets button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.recon-out { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border-radius: 10px; overflow: hidden; margin-top: 20px; border: 1px solid var(--rule); }
.recon-out > div { background: var(--paper); padding: 16px; }
.recon-out span { display: block; font-size: 0.85rem; color: var(--ink-2); }
.recon-out b { display: block; font: 700 clamp(1.5rem, 4vw, 2.1rem)/1.15 var(--sans); margin: 4px 0; color: var(--ink); }
.recon-out small { color: var(--ink-3); font-size: 0.82rem; }
@media (max-width: 520px) { .recon-out { grid-template-columns: 1fr; } }
.adv { margin-top: 16px; font-family: var(--sans); }
.adv summary, .adv-tool summary { cursor: pointer; font: 600 0.95rem var(--sans); }
.adv-tool { padding: 14px 20px; }
.adv-tool[open] summary { margin-bottom: 12px; }
.adv > div { margin-top: 10px; max-width: 16rem; }
.check-grid { display: grid; gap: 10px 20px; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); margin: 16px 0; }
.embed-code { width: 100%; font: 400 0.82rem/1.5 var(--mono); background: var(--surface); color: var(--ink); border: 1px solid var(--rule-strong); border-radius: 6px; padding: 10px; }
/* Research digest */
.digest-list { list-style: none; padding: 0; margin: 8px 0; }
.digest-list li { border-top: 1px solid var(--rule); padding: 10px 0; margin: 0; }
.digest-list a { font: 600 0.98rem/1.35 var(--sans); }
.digest-list p { margin: 3px 0 0; font: 400 0.85rem/1.4 var(--sans); color: var(--ink-3); }
.digest .tag { display: inline-block; font: 600 0.72rem var(--sans); color: var(--ink-2); border: 1px solid var(--rule-strong); border-radius: 4px; padding: 0 5px; margin-right: 4px; }
.digest-grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .digest-grid { grid-template-columns: 1fr 1fr; } }
.digest-card { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 12px 16px; }
.digest-card h3 { margin: 0 0 4px; font-size: 1.05rem; }
.digest-card .digest-list a { font-size: 0.9rem; }
.cols { columns: 2 14rem; padding-left: 1.1em; }
.lang-link { font: 500 0.85rem var(--sans); color: var(--ink-2); text-decoration: none; border: 1px solid var(--rule-strong); border-radius: 6px; padding: 6px 10px; }
.datasheet-link { font: 400 0.95rem var(--sans); background: var(--note-bg); border-radius: 8px; padding: 10px 14px; }
/* Analyzer charts */
.chart-wrap { background: var(--surface); border: 1px solid var(--rule); border-radius: 8px; padding: 10px; margin: 10px 0 16px; }
.chart-wrap svg { width: 100%; height: auto; display: block; font-family: var(--sans); }
.seq .t.flag { outline: 2px solid var(--ink); outline-offset: 1px; }
.partner { font-size: 0.9rem; margin-top: 18px; }
.partner-band > div { background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 12px; padding: 18px 22px; max-width: 52rem; }
.partner-band h2 { margin-top: 0; border: 0; padding: 0; }
/* Infobox: Fifth Ave Labs product links */
.infobox-buy { padding: 14px 16px 16px; border-top: 1px solid var(--rule); background: var(--note-bg); }
.infobox-buy .buy-head { margin: 0 0 8px; font: 600 0.8rem var(--sans); color: var(--ink-2); }
.buy-btn { display: block; text-align: center; background: var(--ink); color: var(--paper); text-decoration: none; font: 600 0.95rem/1.3 var(--sans); padding: 11px 12px; border-radius: 8px; margin-bottom: 8px; }
.buy-btn:hover { background: var(--link-hover); color: #fff; }
.infobox-buy .buy-meta { margin: 2px 0 6px; font-size: 0.82rem; color: var(--ink-2); }
.infobox-buy .buy-disc { margin: 0; font-size: 0.74rem; color: var(--ink-3); }
.buy-row { margin-bottom: 8px; }
.buy-price { display: block; font: 700 1.35rem/1.2 var(--sans); color: var(--ink); margin-bottom: 6px; }
.buy-price small { font: 500 0.8rem var(--sans); color: var(--ink-2); margin-right: 2px; }
.buy-row .buy-btn { margin-bottom: 0; }
.buy-wholesale { margin: 12px 0 8px; padding-top: 10px; border-top: 1px solid var(--rule-strong); display: flex; flex-wrap: wrap; gap: 8px; }
.buy-wholesale .buy-head, .buy-wholesale .buy-meta { flex-basis: 100%; margin: 0; }
.ws-btn { flex: 1; text-align: center; text-decoration: none; font: 600 0.9rem var(--sans); padding: 9px 10px; border-radius: 8px; color: #fff; }
.ws-telegram { background: #2481cc; } .ws-whatsapp { background: #1f8f4e; }