:root{--paper:#f6f8ff;--ink:#06152f;--muted:#64708a;--line:#dce2f1;--green:#563dfc;--orange:#007bff;--card:#fff;--shadow:0 16px 48px #06152f0b}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,pre:focus-visible{outline:3px solid #007bff;outline-offset:4px}a:hover{color:var(--green)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,5.5vw,72px);line-height:1.06;letter-spacing:-.055em}h2{font-size:30px;line-height:1.2;letter-spacing:-.035em}h3{font-size:20px;line-height:1.3;letter-spacing:-.025em}p{color:var(--muted)}.wrap{width:min(1240px,calc(100% - 64px));margin-inline:auto}.topbar{height:76px;display:flex;align-items:center;gap:44px}.brand img{display:block;width:148px;height:auto}.topbar nav{display:flex;gap:28px;font-size:14px;font-weight:600}.topbar nav [aria-current]{color:var(--green)}.language{margin-left:auto;border:1px solid var(--line);border-radius:50px;padding:7px 14px;font-size:13px;background:#fff}.eyebrow{font-size:11px;font-weight:750;letter-spacing:.15em;color:var(--green);margin-bottom:15px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 21px;border:1px solid var(--line);border-radius:50px;background:#fff;color:var(--ink);font-weight:650;font-size:14px;white-space:nowrap}.btn.primary{background:var(--green);color:#fff;border-color:var(--green)}.btn.primary:hover{background:#4325e1}.btn:active{transform:scale(.98)}.text-link{display:inline-block;font-size:14px;font-weight:650;color:var(--green)}.hero .text-link{margin-top:20px}.searchbox{display:flex;gap:8px;background:white;border:1px solid var(--line);align-items:center}.searchbox input{width:100%;min-width:0;border:0;background:transparent;outline-offset:3px;font-size:14px}.hero-visual{position:absolute;pointer-events:none}.mosaic-symbols{position:absolute;width:0;height:0}.mosaic-tile{display:flex;align-items:center;justify-content:center}.mosaic-tile svg{fill:none;stroke:#253b68;stroke-linecap:round;stroke-linejoin:round}.tile-lilac{background:#cfbafa}.tile-coral{background:#a6bcff}.tile-sage{background:#a5e4eb}.tile-blue{background:#9fcbff}.tile-cream{background:#d6d4ff}.motion-toggle{position:absolute;right:26px;bottom:22px;z-index:3;background:#ffffffdb;border:1px solid var(--line);border-radius:50px;padding:9px 15px;color:var(--muted);font-size:11px;display:flex;gap:8px;align-items:center}.motion-indicator{height:6px;width:6px;border-radius:100%;background:var(--green)}.hero .searchbox{border-color:var(--line)}.hero p{color:var(--muted)}.principles{display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line);padding-block:24px;font-size:12px;font-weight:600}.principles p{font-size:11px;max-width:300px;margin:0;font-weight:400}.section{padding-block:64px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}.section-heading p{font-size:14px;margin:12px 0 0}.section-heading h2{margin:0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.skill-card{background:white;border:1px solid var(--line);border-radius:22px;padding:24px;display:flex;flex-direction:column;min-width:0}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.skill-icon{display:grid;place-items:center;width:48px;height:48px;background:linear-gradient(135deg,#e9dfff,#d5f5ff);color:#563dfc;font-size:23px;font-weight:700;border-radius:14px;flex-shrink:0;text-transform:uppercase}.source-pill{font-size:10px;letter-spacing:.04em;border:1px solid var(--line);border-radius:20px;padding:4px 9px;color:var(--muted)}.skill-card h3{overflow-wrap:anywhere;margin-bottom:10px}.description{font-size:13px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:66px;margin-bottom:20px}.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:22px;max-height:64px;overflow:hidden}.card-tags span,.card-tags a{font-size:10px;background:#f2f4fc;color:#4f5c77;padding:4px 9px;border-radius:8px;overflow-wrap:anywhere}.card-bottom{border-top:1px solid #edf0f8;padding-top:16px;display:flex;align-items:center;justify-content:space-between;margin-top:auto}.card-bottom>a{background:#f0edff;border-radius:50%;height:30px;width:30px;text-align:center;color:var(--green);line-height:30px}.license-status{color:var(--muted);font-size:11px}.page-intro{max-width:770px;margin-bottom:36px}.page-intro h1{margin-bottom:18px}.catalog-search{display:flex;gap:12px;background:#fff;padding:12px;border:1px solid var(--line);border-radius:20px}.catalog-search input{flex:1;min-width:0;padding:10px 12px;border:0;background:transparent}.catalog-search select{max-width:220px;border:0;background:#f6f8ff;border-radius:12px;padding:10px;font-size:13px}.result-toolbar{display:flex;justify-content:space-between;gap:15px;font-size:13px;color:var(--muted);margin:24px 0}.result-toolbar a{color:var(--green)}.empty{grid-column:1/-1;text-align:center;background:linear-gradient(135deg,#eeedff,#f4fcff);border:1px solid var(--line);border-radius:24px;padding:65px 25px}.empty p{max-width:470px;margin-inline:auto;font-size:14px}.empty-symbol{display:block;color:var(--green);font-size:44px}.empty h2{margin-bottom:15px}.pagination{display:flex;justify-content:center;gap:10px;margin-top:35px}.pagination a{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:#fff}.pagination [aria-current]{background:var(--green);color:#fff}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.topic{border:1px solid var(--line);border-radius:20px;padding:26px;background:#fff;overflow-wrap:anywhere}.topic h2{font-size:22px;margin:20px 0 8px}.topic p{font-size:12px;margin:0}.topic-mark{display:grid;place-items:center;border-radius:12px;width:42px;height:42px;background:#e9e6ff;color:var(--green)}.reading{max-width:850px;min-height:65vh}.reading h1{max-width:800px}.lead{font-size:18px;line-height:1.8;white-space:pre-line}.note{border-left:3px solid var(--green);padding:20px 25px;background:#eeedff;margin:30px 0;color:#485774;border-radius:0 15px 15px 0}.guide-steps{padding-left:30px}.guide-steps li{padding:18px 0 18px 15px}.guide-steps li::marker{color:var(--green);font-weight:700}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:55px;margin-top:35px}.detail-heading{display:flex;align-items:center;gap:20px;margin-bottom:24px}.detail-heading h1{font-size:clamp(32px,4vw,52px);overflow-wrap:anywhere;margin:0 0 7px}.detail-heading .eyebrow{margin:0 0 10px}.source-name{font-family:ui-monospace,monospace;font-size:12px;margin:0;overflow-wrap:anywhere}.skill-icon.large{height:70px;width:70px;font-size:34px;border-radius:22px}.detail-sidebar{align-self:start;position:sticky;top:20px;padding:25px;background:#fff;border:1px solid var(--line);border-radius:22px}.detail-sidebar h2{font-size:18px}.detail-sidebar dl>div{padding:12px 0;border-bottom:1px solid #edf0f8}.detail-sidebar dt{font-size:11px;color:var(--muted);margin-bottom:4px}.detail-sidebar dd{margin:0;font-size:13px;overflow-wrap:anywhere}.detail-sidebar small{display:block;color:var(--muted);font-size:11px}.detail-sidebar .btn{margin-top:20px}.source-disclaimer{font-size:11px;line-height:1.7;margin:18px 0 0}.full{width:100%}.content-block{margin-top:40px}.content-block h2{font-size:23px}.content-block li{color:var(--muted);margin-bottom:12px}.skill-markdown{max-height:650px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;tab-size:2;font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;border:1px solid var(--line);padding:24px;border-radius:18px;background:#fff}.footer{border-top:1px solid var(--line);padding-block:35px;display:flex;justify-content:space-between;gap:25px;margin-top:30px}.footer img{display:block;height:auto}.footer p{font-size:12px;margin:12px 0 0}.footer nav{display:flex;align-items:center;gap:25px;font-size:12px;color:var(--muted)}.preview-banner{background:#06152f;color:#d2dafa;text-align:center;padding:6px 15px;font-size:11px}.sr-only,.skip-link{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip-link:focus{position:fixed;top:10px;left:10px;clip-path:none;z-index:99;width:auto;height:auto;padding:10px;background:white}
@media(max-width:1000px){.topbar{gap:25px}.topbar nav{gap:18px}.cards,.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.principles p{display:none}.detail-layout{gap:28px;grid-template-columns:minmax(0,1fr) 270px}}@media(max-width:650px){.wrap{width:calc(100% - 32px)}.topbar{flex-wrap:wrap;height:auto!important;min-height:84px;border-radius:20px!important;padding:12px 15px!important;gap:8px 20px}.topbar .brand img{width:115px}.topbar nav{order:3;width:100%;justify-content:space-between;font-size:12px;gap:10px;padding-top:6px}.language{font-size:11px;padding:4px 10px}.cards,.topic-grid{grid-template-columns:1fr;gap:14px}.section{padding-block:35px}.section-heading{align-items:start;flex-direction:column}.principles{gap:10px;font-size:10px;padding-block:18px}.catalog-search{flex-wrap:wrap;gap:8px}.catalog-search input{flex-basis:100%;padding:10px 4px}.catalog-search select{flex:1;max-width:none;min-width:0}.catalog-search .btn{font-size:12px;padding:10px 15px}.detail-layout{grid-template-columns:1fr}.detail-sidebar{position:static}.detail-heading{align-items:flex-start;gap:14px}.skill-icon.large{height:52px;width:52px;font-size:25px;border-radius:15px}.lead{font-size:16px}.footer{flex-direction:column}.footer nav{gap:20px}.hero .searchbox{flex-wrap:nowrap}.hero .searchbox input{font-size:12px}.hero .searchbox button{font-size:11px!important;padding:10px 12px!important}.hero .hero-copy-reveal{padding-bottom:80px}.skill-card{padding:21px}.reading h1{font-size:40px}}

/* On-site events only; source popularity is never substituted. */
.skill-stats{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center;padding:1rem 0}.skill-stats button{border:1px solid #daddea;border-radius:8px;background:#fff;padding:.45rem .6rem;color:inherit;cursor:pointer}.skill-stats button:disabled{opacity:.5}.card-stats{display:flex;gap:1rem;font-size:.85rem;margin:.6rem 0}.source-original{white-space:pre-wrap}.content-block dt{font-weight:600;margin-top:.8rem}.content-block dd{margin:.25rem 0 .8rem;white-space:pre-wrap}.social-comments blockquote{margin:1rem 0;padding:1rem;border-left:3px solid #a7a3d7}.social-comments small{display:block;margin-top:.5rem}#skillpi-login:not([hidden]){display:flex;flex-wrap:wrap;gap:.7rem;margin:1rem 0}#skillpi-login input{display:block;max-width:100%;padding:.4rem}