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/* BotFather reference pass. Typography intentionally unchanged. */
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@media(max-width:480px){.reference-rules{grid-template-columns:1fr 1fr}.swatch i{width:18px;flex-shrink:0}.swatch code{font-size:var(--text-xs)}.state-grid{padding:17px}.topbar{gap:8px}.icon-card{padding:16px 10px}}
/* Refined Gem drawing system — the master mark remains upright. */
.icon-grid{--preview-icon-size:24px}.icon-card>div:first-child{height:96px}.icon-card .icon{width:var(--preview-icon-size);height:var(--preview-icon-size)}.icon-card{transition:background-color .2s ease}.icon-card:hover{background:var(--bg2)}.icon-card h3{font-size:var(--text-xs)}.icon-actions{border-top:1px solid var(--line);padding-top:9px}.icon-actions button,.icon-actions a{min-height:44px;font-size:var(--text-xs)}.icon-preview-controls{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin:25px 0}.icon-preview-controls label{font-size:var(--text-xs)}.icon-preview-controls>span{font-size:var(--text-xs);color:var(--hint);margin-left:auto}.master-board{display:grid;grid-template-columns:1fr 1.3fr;gap:35px;align-items:center;margin:35px 0;padding:28px;background:var(--surface);border-radius:8px}.master-grid{display:grid;place-items:center;aspect-ratio:1;max-width:260px;width:100%;margin:auto;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:calc(100% / 8) calc(100% / 8);border:1px solid var(--line);position:relative}.master-grid>.icon{width:80%;height:80%;color:var(--link)}.master-board h3{margin-top:14px}.optical-sizes{display:flex;align-items:end;gap:25px;margin-top:25px}.optical-sizes>span{display:flex;flex-direction:column;align-items:center;gap:12px}.optical-sizes small{font-size:var(--text-xs);color:var(--hint)}.optical-sizes>span:nth-child(1) .icon{width:16px;height:16px}.optical-sizes>span:nth-child(2) .icon{width:24px;height:24px}.optical-sizes>span:nth-child(3) .icon{width:32px;height:32px}.optical-sizes>span:nth-child(4) .icon{width:48px;height:48px}.graphic-system{margin:45px 0}.editorial-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:25px 0}.editorial-grid>article{padding:28px;background:var(--surface);border-radius:8px;min-width:0}.editorial-kicker{display:block;font-size:var(--text-xs);color:var(--link);letter-spacing:1.6px;margin-bottom:16px}.editorial-grid h4{font-size:26px}.quote-block{margin:25px 0;border-left:2px solid var(--link);padding-left:18px}.quote-block>.icon{width:18px;height:18px;opacity:.75}.quote-block blockquote{margin:8px 0 0;font-size:18px;line-height:1.5;letter-spacing:-.02em}.inline-note{display:flex;align-items:start;gap:10px;background:var(--soft);padding:13px;border-radius:8px;font-size:var(--text-xs);line-height:1.7;color:var(--hint)}.inline-note>.icon{width:17px;height:17px;margin-top:2px}.process-steps{list-style:none;margin:5px 0;padding:0;display:grid;gap:38px}.process-steps li{position:relative;display:flex;gap:16px;align-items:center}.process-steps li>.icon{width:44px;height:44px;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--bg)}.process-steps li:not(:last-child):after{content:'';height:24px;width:1px;position:absolute;top:51px;left:22px;background:var(--line)}.process-steps b{font-size:15px;font-weight:500;display:block}.process-steps small{font-size:var(--text-xs);color:var(--hint);display:block;margin-top:3px}.editorial-chart{margin-top:30px;display:grid;gap:22px}.editorial-chart>div{display:grid;grid-template-columns:1fr auto;gap:10px;font-size:var(--text-xs)}.editorial-chart b{font-weight:500;font-variant-numeric:tabular-nums}.editorial-chart i{grid-column:1/-1;display:block;height:7px;border-radius:3px;background:linear-gradient(to right,var(--link) var(--value),var(--bg2) var(--value))}.format-tools{display:flex;justify-content:space-between;gap:8px;padding:13px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:25px}.format-tools>.icon{width:21px;height:21px}.format-panel ul{margin:22px 0 0;padding-left:18px;color:var(--hint);font-size:var(--text-xs);line-height:1.8}.format-panel li{margin:10px 0}.format-panel li::marker{color:var(--link)}
@media(max-width:650px){.master-board{grid-template-columns:1fr;padding:24px;gap:28px}.master-grid{max-width:220px}.editorial-grid{grid-template-columns:1fr}.editorial-grid>article{padding:23px}.icon-preview-controls>span{flex-basis:100%;margin:0}.optical-sizes{justify-content:space-between;gap:15px}.icon-card>div:first-child{height:86px}.icon-card h3{font-size:var(--text-xs)}}

/* Noto Sans typography trial: previous edition archived for rollback. */
h1,.section-heading h2,.display-sample{font-weight:800;letter-spacing:-.04em;line-height:1.12}h3,h4,.section-sample{font-weight:700;letter-spacing:-.025em}.card-sample{font-weight:600}.type-hero{font-weight:750;letter-spacing:-.04em}button,input,select,textarea{font-family:inherit}code,pre{font-variant-numeric:tabular-nums}.wordmark{font-weight:800;letter-spacing:-.045em}

/* Reading and navigation follow the same tokens as the product. */
.cover h1{font-size:var(--text-title);line-height:1.15}.section-heading h2{font-size:var(--text-section);line-height:1.25}aside nav a{min-height:44px;font-size:var(--text-sm)}.source-note,.eyebrow,.section-heading>span{font-size:var(--text-xs);letter-spacing:0}.topbar{position:relative}.type-hero{letter-spacing:-.025em}.small-button,select{min-height:44px;font-size:var(--text-sm)}

.display-sample{font-size:var(--text-title);line-height:1.15;font-weight:700;letter-spacing:-.025em}.section-sample{font-size:var(--text-section);line-height:1.25;font-weight:700}.card-sample{font-size:18px;font-weight:650}.type-rows p{font-size:16px;line-height:1.6}