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a{color:var(--white)}.foot-base{color:#e9e6df;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;font-size:15px;display:flex}.site-footer{margin-top:0;padding:26px 0}.site-footer .foot-base{color:var(--white);align-items:center;line-height:1.5}.site-footer .foot-base a{text-underline-offset:3px;text-decoration-thickness:1.5px}.site-footer .foot-base>span:first-child a{color:var(--yellow)}.site-footer .foot-base>span:last-child a{color:#6fd9b8}.site-footer .foot-base a:hover{text-decoration-thickness:2.5px}.maker-mark{width:44px;height:44px;color:var(--ink);border-radius:50%;justify-content:center;align-items:center;display:inline-flex}.maker-mark:hover{background:var(--yellow-t)}@media (prefers-reduced-motion:no-preference){.maker-mark{transition:background .15s,transform .2s}.maker-mark:hover{transform:rotate(-8deg)}}.course-layout{grid-template-columns:250px minmax(0,1fr);display:grid}.toc{max-height:100vh;padding:32px 14px 32px var(--gutter);border-right:1px solid var(--line);align-self:start;position:sticky;top:0;overflow-y:auto}.toc-title{font-family:var(--display);color:var(--ink);margin:0 0 12px 10px;font-size:15px;font-weight:500}.toc-list{flex-direction:column;gap:2px;font-size:15px;display:flex}.toc-list a{color:var(--muted);border-radius:10px;padding:6px 10px;line-height:1.35;text-decoration:none;display:block}.toc-list a:hover{color:var(--ink);background:var(--sand)}.toc-list a.toc-d2{color:var(--ink);margin-top:6px;font-weight:600}.toc-list a.toc-d3{border-left:1.5px solid var(--line);border-radius:0 10px 10px 0;margin-left:12px;padding-left:12px}.toc-list a.is-current{background:var(--yellow-t);color:var(--ink)}.toc-list a.toc-d3.is-current{border-left-color:var(--ink)}.toc-bar{display:none}.course-main section[id],.course-main h3[id],.course-main h4[id]{scroll-margin-top:16px}.course-main .float{display:none}@media (width>=1500px){.course-main .float{display:block}}@media (width<=1100px){.course-layout{display:block}.toc{display:none}.toc-bar{z-index:20;background:var(--paper);border-bottom:1px solid var(--line);display:block;position:sticky;top:0}.toc-bar summary{padding:12px var(--gutter);cursor:pointer;color:var(--ink);align-items:center;gap:10px;font-weight:600;list-style:none;display:flex}.toc-bar summary::-webkit-details-marker{display:none}.toc-bar .chip{flex:none;padding:4px 10px;font-size:12px}.toc-current{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.toc-caret{flex:none}.toc-bar[open] .toc-caret{transform:rotate(180deg)}.toc-bar .toc-list{max-height:65vh;padding:4px var(--gutter) 16px;overflow-y:auto}.course-main section[id],.course-main h3[id],.course-main h4[id]{scroll-margin-top:64px}}dialog.gate{width:min(480px,100% - 32px);height:fit-content;max-height:calc(100vh - 32px);color:var(--body);border:0;margin:auto;position:fixed;inset:0;overflow-y:auto}dialog.gate::backdrop{backdrop-filter:blur(3px);background:#fbf8f3d9}@media (prefers-reduced-motion:no-preference){dialog.gate[open]{animation:.2s ease-out gate-in}@keyframes gate-in{0%{opacity:0;transform:translateY(10px)scale(.98)}to{opacity:1;transform:none}}}.gate .gate-x{cursor:pointer}.gate-form{margin:0}.gate .pill-btn.block{justify-content:flex-start}.gate-error{color:var(--ink);margin:10px 0 0;font-size:15px;font-weight:600}.ss-hp{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.home-hero{text-align:center;isolation:isolate;padding:56px 0 40px;overflow:hidden}.home-hero:before,.home-hero:after{content:"";z-index:-1;filter:blur(60px);opacity:.55;pointer-events:none;border-radius:50%;position:absolute}.home-hero:before{background:var(--purple-t);width:520px;height:420px;top:20px;left:-160px}.home-hero:after{background:var(--green-t);width:560px;height:440px;top:160px;right:-180px}.home-hero h1{letter-spacing:-.03em;max-width:16ch;font-size:clamp(34px,7vw,88px);font-weight:700;line-height:1.02}.home-hero .lede{max-width:620px;margin:0 auto;font-size:19px}.creds{flex-wrap:wrap;justify-content:center;gap:10px;margin:28px 0 0;padding:0;list-style:none;display:flex}.creds li{margin:0}.course-card{background:var(--white);border-radius:var(--r-lg);box-shadow:inset 0 0 0 1px var(--line);grid-template-columns:1fr;gap:28px;padding:48px 26px 28px;display:grid;position:relative}@media (width>=860px){.course-card{grid-template-columns:1.3fr 1fr;gap:40px;padding:52px 40px 36px}}.course-card h2{margin-bottom:14px}.course-card .sticker{top:-18px}.versions{gap:8px;margin:8px 0 18px;padding:0;list-style:none;display:grid}.versions li{align-items:flex-start;gap:10px;display:flex}.versions .fdot{margin-top:9px}.card-side{border-top:1px solid var(--line);padding-top:20px}@media (width>=860px){.card-side{border-top:0;border-left:1px solid var(--line);padding-top:0;padding-left:32px}}.next-up{color:var(--muted);margin-top:20px;font-size:15px}@media (width>=1101px){.course-main h1{font-size:clamp(38px,11vw - 27.5px,132px)}}