.course{--paper:#F4F6FA; --ink:#141A2E; --muted:#555E78; --line:#D7DCE7; --well:#E9EDF4; --accent:#C43D1F; --accent-ink:#FFFFFF; --good:#1F7A55; --bad:#B3261E; --radius:10px; --radius-s:6px; --display:"Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif; --body:"Source Serif 4", Georgia, "Times New Roman", serif; --mono:"JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;}
.course *{box-sizing:border-box}
.course{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.6; padding:env(safe-area-inset-top,0px) max(16px, env(safe-area-inset-right,0px)) env(safe-area-inset-bottom,0px) max(16px, env(safe-area-inset-left,0px))}
.course a{color:inherit;text-underline-offset:3px}
.course :focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.course h1,.course h2,.course h3{font-family:var(--display);line-height:1.12;text-wrap:balance;margin:0}
.course p{margin:0;text-wrap:pretty}
.course code{font-family:var(--mono);font-size:.82em;background:var(--well);padding:.1em .35em;border-radius:4px}
.course .shell{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;padding-block:48px 96px}
.course nav.index{position:sticky;top:calc(env(safe-area-inset-top,0px) + 32px);align-self:start;font-family:var(--display);font-size:15px}
.course nav.index .brand{font-weight:800;font-size:19px;margin-bottom:20px;display:block;text-decoration:none}
.course nav.index ol{list-style:none;margin:0;padding:0;display:grid;gap:2px;counter-reset:l}
.course nav.index li{counter-increment:l}
.course nav.index ol a{text-decoration:none;color:var(--muted);display:flex;gap:10px;padding:7px 0}
.course nav.index ol a::before{content:counter(l);font-variant-numeric:tabular-nums;width:1.2em}
.course nav.index ol a:hover{color:var(--ink)}
.course nav.index ol a.on{color:var(--ink);font-weight:700}
.course nav.index ol a.on::before{color:var(--accent)}
.course nav.index .credit{margin-top:28px;font-family:var(--body);font-size:14px;color:var(--muted);line-height:1.5}
.course .course-main{min-width:0}
.course .hero{padding-bottom:56px}
.course .hero h1{font-size:clamp(40px,6.4vw,76px);font-weight:800;letter-spacing:-.025em;max-width:13ch}
.course .hero h1 span{color:var(--accent)}
.course .hero p{font-size:21px;color:var(--muted);max-width:36em;margin-top:24px}
.course .hero .route{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:32px;font-family:var(--display);font-size:15px;color:var(--muted)}
.course .hero .route b{color:var(--ink);font-variant-numeric:tabular-nums}
.course section.lesson{padding-top:72px;scroll-margin-top:24px}
.course .lesson-head{display:grid;grid-template-columns:72px minmax(0,1fr);gap:0 8px;align-items:baseline;margin-bottom:20px}
.course .lesson-head .n{font-family:var(--display);font-weight:800;font-size:56px;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums}
.course .lesson-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;letter-spacing:-.015em;max-width:24ch}
.course .lede{max-width:36em;font-size:19px;margin-bottom:12px}
.course .prose{max-width:36em}
.course .muted{color:var(--muted)}
.course .terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 48px;margin-top:36px}
.course .term h3{font-size:19px;font-weight:700;margin-bottom:4px}
.course .term p{font-size:16px;line-height:1.55}
.course .term .ai{color:var(--muted);margin-top:6px}
.course .demo{margin-top:10px;background:var(--well);border-radius:var(--radius);padding:14px 16px;font-size:15px}
.course .demo .pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:end}
.course .demo small{display:block;font-family:var(--display);font-size:12px;color:var(--muted);margin-top:4px}
.course .kern-on,.course .kern-off{font-family:var(--display);font-size:34px;font-weight:700;line-height:1}
.course .kern-off{font-kerning:none;letter-spacing:.02em}
.course .nums{font-family:var(--display);font-size:20px;line-height:1.3}
.course .tab{font-variant-numeric:tabular-nums}
.course .prop{font-variant-numeric:proportional-nums}
.course .xh{font-size:32px;line-height:1}
.course .tgt{display:flex;gap:18px;align-items:center}
.course .tgt button{border:0;background:var(--accent);color:var(--accent-ink);border-radius:var(--radius-s);font:600 13px var(--display);cursor:pointer}
.course .tgt .small{width:24px;height:24px;padding:0}
.course .tgt .big{width:44px;height:44px;padding:0}
.course .group{margin-top:40px}
.course .group > h3{font-size:22px;font-weight:800;margin-bottom:6px}
.course .group > p{color:var(--muted);max-width:36em;font-size:16px}
.course .rows{margin-top:20px;display:grid;gap:24px}
.course .row{display:grid;grid-template-columns:220px minmax(0,1fr);gap:8px 32px}
.course .row h4{margin:0;font-family:var(--display);font-size:17px;font-weight:700;line-height:1.3}
.course .row p{font-size:16px;line-height:1.55;max-width:36em}
.course .row .fix{margin-top:6px;color:var(--muted)}
.course .row .fix b{color:var(--good);font-weight:600;font-family:var(--display);font-size:14px}
.course .note{margin-top:28px;max-width:36em;padding-left:18px;border-left:3px solid var(--accent);font-size:17px}
.course .lab{margin-top:28px;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:32px;align-items:start}
.course .toggle{display:inline-flex;background:var(--well);border-radius:var(--radius);padding:4px;margin-top:20px}
.course .toggle button{border:0;background:transparent;color:var(--muted);font:700 15px var(--display);padding:9px 18px;border-radius:var(--radius-s);cursor:pointer;min-height:44px}
.course .toggle button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.course .stage{border-radius:var(--radius);overflow:hidden;min-height:340px}
.course .slop{background:linear-gradient(135deg,#6E4CF5 0%,#3B82F6 55%,#22D3EE 100%);padding:22px;color:#fff;position:relative}
.course .slop .box{border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);border-radius:22px;padding:22px}
.course .slop .eb{font:500 11px/1 var(--mono);letter-spacing:.14em;color:rgba(255,255,255,.7)}
.course .slop .pill{display:inline-block;font:600 10px/1 var(--display);letter-spacing:.08em;padding:5px 9px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);margin-left:8px;vertical-align:middle}
.course .slop h5{font:400 30px/1.1 "Instrument Serif",Georgia,serif;letter-spacing:-.03em;margin:14px 0 8px}
.course .slop h5 em{font-style:italic}
.course .slop .sub{font:600 11px/1.4 var(--display);letter-spacing:.12em;opacity:.75}
.course .slop hr{border:0;border-top:1px solid rgba(255,255,255,.25);margin:14px 0}
.course .slop .crumb{font:400 12px/1.5 var(--mono);opacity:.8}
.course .slop .copy{font:400 13px/1.5 var(--display);opacity:.72;margin-top:10px}
.course .slop .ctas{display:flex;gap:8px;margin-top:14px}
.course .slop .ctas span{font:600 12px var(--display);padding:8px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12)}
.course .mk{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#FFD43B;color:#1a1a1a;font:800 11px var(--display);margin-left:6px;vertical-align:middle;font-variant-numeric:tabular-nums}
.course .clean{background:#FBFAF7;color:#1C1D22;padding:32px 28px}
.course .clean h5{font:800 30px/1.08 var(--display);letter-spacing:-.02em;margin:0 0 12px;max-width:15ch;text-wrap:balance}
.course .clean p{font:400 16px/1.55 var(--body);color:#4A4D57;max-width:30em}
.course .clean .shot{margin-top:20px;background:#ECEAE3;border-radius:10px;padding:16px 18px;font:400 14px/1.7 var(--mono);color:#2A2C33}
.course .clean .shot .add{color:#17703F}
.course .clean .shot .del{color:#A3261C;text-decoration:line-through}
.course .clean .cta{display:inline-block;margin-top:20px;background:#C43D1F;color:#fff;font:700 15px var(--display);padding:12px 20px;border-radius:8px}
.course .clean .sec{margin-left:16px;font:600 15px var(--display);color:#4A4D57}
.course .callouts{font-size:16px}
.course .callouts h3{font-size:20px}
.course .callouts ol{margin:12px 0 0;padding-left:1.4em;display:grid;gap:10px}
.course .callouts li::marker{font-family:var(--display);font-weight:800;color:var(--accent)}
.course .callouts li b{font-family:var(--display)}
.course .fixgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 48px;margin-top:20px}
.course .fx h4{margin:0 0 4px;font:700 17px/1.3 var(--display)}
.course .fx p{font-size:16px;line-height:1.55}
.course .radius-demo{display:flex;gap:28px;flex-wrap:wrap;margin-top:12px}
.course .rd{font:600 12px var(--display);color:var(--muted);text-align:center}
.course .rd .o{width:120px;height:84px;border-radius:24px;background:var(--accent);padding:12px;margin-bottom:6px}
.course .rd .i{width:100%;height:100%;background:var(--paper)}
.course .rd.wrong .i{border-radius:24px}
.course .rd.right .i{border-radius:12px}
.course .palettes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:32px}
.course .pal h3{font-size:20px;font-weight:800}
.course .pal .mood{font-size:15px;color:var(--muted);margin:4px 0 14px}
.course .sw{display:grid;grid-template-columns:2fr 1fr 1fr;height:120px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.course .sw div{display:flex;align-items:flex-end;padding:8px;font:500 11px/1.3 var(--mono)}
.course .pal dl{margin:14px 0 0;display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:15px}
.course .pal dt{font-family:var(--display);font-weight:700}
.course .pal dd{margin:0;color:var(--muted)}
.course .method{margin-top:40px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.course .method div h4{margin:0 0 4px;font:700 16px var(--display)}
.course .method div p{font-size:15px;line-height:1.5;color:var(--muted)}
.course .method div .s{font:800 15px var(--display);color:var(--accent);font-variant-numeric:tabular-nums}
.course .textures{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:24px 20px;margin-top:28px}
.course .tx canvas{width:100%;aspect-ratio:8/5;max-width:100%;display:block;border-radius:var(--radius);background:var(--well)}
.course .tx h4{margin:8px 0 2px;font:700 15px var(--display)}
.course .tx p{font-size:14px;line-height:1.45;color:var(--muted)}
.course .audit{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;margin-top:24px;align-items:start}
.course .audit fieldset{border:0;margin:0 0 20px;padding:0}
.course .audit legend{font:800 17px var(--display);margin-bottom:8px;padding:0}
.course .audit label{display:flex;gap:10px;align-items:flex-start;min-height:44px;padding:8px 0;font-size:16px;cursor:pointer;line-height:1.4}
.course .audit input{width:18px;height:18px;margin-top:3px;accent-color:var(--accent);flex:none}
.course .result{position:sticky;top:calc(env(safe-area-inset-top,0px) + 24px);background:var(--well);border-radius:var(--radius);padding:24px}
.course .result .score{font:800 52px/1 var(--display);font-variant-numeric:tabular-nums}
.course .result .score span{font-size:22px;color:var(--muted);font-weight:700}
.course .result .verdict{margin-top:6px;font:700 17px var(--display)}
.course .result ul{margin:16px 0 0;padding-left:1.1em;font-size:16px;display:grid;gap:6px}
.course .result .reset{margin-top:16px;border:1px solid var(--line);background:transparent;color:var(--ink);font:600 14px var(--display);padding:8px 14px;border-radius:var(--radius-s);cursor:pointer;min-height:44px}
.course .prompts{display:grid;gap:36px;margin-top:28px}
.course .pr{max-width:648px}
.course .pr .head{display:flex;justify-content:space-between;align-items:center;gap:16px}
.course .pr h3{font-size:22px;font-weight:800}
.course .pr .why{font-size:16px;color:var(--muted);margin:4px 0 12px;max-width:36em}
.course .pr pre{margin:0;padding:20px;background:var(--well);border-radius:var(--radius);overflow-x:auto;font:400 13.5px/1.65 var(--mono);white-space:pre-wrap;word-break:break-word;max-height:360px;overflow-y:auto}
.course .pr .copy{flex:none;border:0;background:var(--ink);color:var(--paper);font:700 13px var(--display);padding:0 14px;border-radius:var(--radius-s);cursor:pointer;min-height:44px}
.course footer{margin-top:88px;font-size:15px;color:var(--muted);max-width:36em}
@media (max-width:900px){.course .shell{grid-template-columns:minmax(0,1fr);gap:0;padding-block:24px 72px}
.course nav.index{position:static;margin-bottom:24px}
.course nav.index ol{grid-auto-flow:column;grid-auto-columns:max-content;gap:18px;overflow-x:auto;padding-bottom:6px}
.course nav.index .credit{display:none}
.course .terms,.course .fixgrid,.course .lab,.course .audit,.course .palettes{grid-template-columns:minmax(0,1fr)}
.course .method{grid-template-columns:repeat(2,minmax(0,1fr))}
.course .row{grid-template-columns:minmax(0,1fr)}
.course .result{position:static}
}
@media (max-width:480px){.course{font-size:17px}
.course .lesson-head{grid-template-columns:48px minmax(0,1fr)}
.course .lesson-head .n{font-size:40px}
.course .method{grid-template-columns:minmax(0,1fr)}
.course .demo .pair{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:no-preference){.course{scroll-behavior:smooth}
}

/* Fitting: the family theme shares a few class names with the course; the course's rules win inside .course. */
.course { padding-top: 0; }
.course .hero { padding-top: 0; }
.course .note { font-size: 17px !important; margin-top: 28px !important; color: inherit; }
.course .pr .copy:hover { background: var(--ink); color: var(--paper); }
.course .font-note { margin-top: 14px; max-width: 36em; font-size: 15px; color: var(--muted); }