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a:hover{border-color:var(--ink)}.quiet-link{text-underline-offset:4px;align-items:center;min-height:44px;font-size:.9rem;font-weight:650;text-decoration:underline;display:inline-flex}.discovery-hero{border-bottom:1px solid var(--line);background:var(--surface);padding:52px 0 24px}.discovery-hero h1{letter-spacing:-.05em;margin:12px 0 16px;font-size:clamp(2rem,5vw,3.7rem);line-height:1.08}.discovery-intro{color:var(--muted);margin:0;font-size:1.05rem}.discovery-hero .home-class-chooser{background:0 0;border:0;padding:34px 0 0}.class-shelf-heading{grid-template-columns:minmax(0,1fr) minmax(280px,.75fr);align-items:end;column-gap:40px;margin-bottom:20px;display:grid}.class-shelf-heading .section-eyebrow{grid-column:1/-1;margin:0 0 7px}.class-shelf-heading h2{letter-spacing:-.04em;margin:0;font-size:clamp(1.4rem,2.4vw,2rem)}.class-shelf-heading>p:last-child{color:var(--muted);margin:0;font-size:.9rem;line-height:1.55}.class-shelf-tone-9{--class-color:var(--class-9)}.class-shelf-tone-10{--class-color:var(--class-10)}.class-shelf-tone-11{--class-color:var(--class-11)}.class-shelf-tone-12{--class-color:var(--class-12)}.class-shelf-desktop{border:1px solid var(--line);background:var(--surface);border-radius:22px;grid-template-columns:minmax(210px,.36fr) minmax(0,1fr);min-height:292px;display:grid;overflow:hidden;box-shadow:0 18px 40px -32px #1c191752}.class-shelf-index{border-right:1px solid var(--line);background:color-mix(in srgb, var(--bg) 72%, var(--surface));align-content:stretch;padding:8px;display:grid}.class-shelf-index button{min-height:68px;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:13px;grid-template-columns:minmax(0,1fr) auto 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