@import url('/lab/classifiers1/notebook.css');
header nav{flex-direction:row;gap:22px}header nav a{border:0;padding:0;font-size:13px;font-weight:600;color:var(--ink)}main{max-width:1250px;margin:auto;padding:0 40px}.hero{padding:70px 0 65px;border-bottom:1px solid var(--line)}.hero h1{font-size:clamp(43px,6vw,76px);line-height:1.06;letter-spacing:-3px;margin:24px 0}.hero em{font-family:Georgia,serif;font-weight:400;color:var(--accent)}.badge{font-size:10px;letter-spacing:.7px;padding:6px 10px;border-radius:30px;background:#e3eee2;color:var(--accent);display:inline-block;margin-left:12px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0 12px}.note{font-size:13px;line-height:1.6;color:var(--muted)}.experiment{padding:55px 0;border-bottom:1px solid var(--line)}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}.eyebrow{color:var(--accent)}h2{font-size:32px;line-height:1.2;letter-spacing:-1px;margin:10px 0 18px}h3{font-size:17px;margin:0 0 20px}h4{font-size:13px;margin:20px 0 12px}.tag{font-size:11px;background:#edf1ec;color:var(--muted);padding:5px 10px;border-radius:5px}.workspace{display:grid;grid-template-columns:320px minmax(0,1fr);gap:25px;margin-top:28px}.card{background:white;border:1px solid var(--line);border-radius:12px;padding:25px}.results{display:flex;flex-direction:column;gap:20px}.controls{align-self:start}.controls>.primary{width:100%;margin:15px 0 0}.dial{display:grid;grid-template-columns:1fr 66px;gap:5px 12px;align-items:center;padding:18px 0;border-top:1px solid #e7ece6}.dial label{font-size:14px;font-weight:650}.dial .help{font-size:12px;line-height:1.5;color:var(--muted);grid-column:1;margin:0}.dial output{grid-row:1/3;grid-column:2;display:grid;place-items:center;width:65px;height:65px;border-radius:50%;background:conic-gradient(from 225deg,var(--accent) var(--turn),#e7ece6 0);font-size:13px;font-weight:700;position:relative}.dial output:before{content:"";position:absolute;inset:6px;border-radius:50%;background:white}.dial output span{position:relative}input[type=range]{accent-color:var(--accent);width:100%;grid-column:1/3;margin:10px 0 0;cursor:pointer}textarea,select{width:100%;font:15px/1.5 system-ui;color:var(--ink);border:1px solid #b7cac1;border-radius:6px;padding:12px;background:#fffefb}textarea{resize:vertical}label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}select{padding:8px;margin-bottom:10px}.examples{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 22px}.examples button{font-size:11px;padding:7px 10px}.card-title{display:flex;justify-content:space-between;align-items:start;gap:10px}#prediction{font-size:21px;font-weight:700;margin:15px 0}.probability{height:12px;background:#e8e5e1;border-radius:20px;overflow:hidden}#probability-fill{height:100%;background:var(--accent);width:50%;transition:width .25s}.scale{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin:5px 0 22px}.threshold output{float:right;color:var(--accent)}.word-chip{display:inline-block;font:12px ui-monospace,monospace;border-radius:5px;padding:7px 10px;margin:0 7px 7px 0;background:#e3efe5;color:#236342}.word-chip.negative{background:#f7e6df;color:#934531}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.metrics strong{display:block;font-size:32px;font-weight:650;letter-spacing:-1px}.metrics span{font-size:11px;color:var(--muted)}#loss-chart{width:100%;height:120px;border:1px solid #e5ebe4;background:#f7f9f5;border-radius:5px}details{border-top:1px solid var(--line);padding-top:17px;margin-top:20px;font-size:13px}summary{font-weight:650;cursor:pointer;color:var(--accent)}table{width:100%;border-collapse:collapse;font-size:12px}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line)}.table-scroll{overflow:auto;margin-top:12px}.mistake{color:#a94332}#training-data{max-height:260px;overflow:auto;margin:14px 0}.training-row{display:flex;gap:8px;align-items:flex-start;padding:7px 0;border-bottom:1px solid #edf1ec;font-size:11px}.training-row span{flex:1}.training-row button{padding:2px 6px;font-size:12px}.controls details button{font-size:12px;margin-top:8px}.challenge{margin-top:22px;padding:20px 25px;background:#f4efe0;border:1px solid #e9debf;border-radius:8px;font-size:14px}.upload{border:1px dashed #8eac9b;border-radius:8px;padding:17px;font-size:14px;cursor:pointer}.upload input{display:block;max-width:100%;font-size:12px;margin-top:12px}#sample-image{font-size:12px;margin-bottom:25px}.checkbox{display:flex;gap:9px;margin-top:20px;font-weight:500}.checkbox input{accent-color:var(--accent)}.image-stage{display:flex;align-items:center;justify-content:center;background:#f0f3ee;border-radius:8px;min-height:240px;overflow:hidden}canvas{max-width:100%;height:auto;display:block}progress{width:100%;accent-color:var(--accent)}.class-result{margin:16px 0}.class-title{display:flex;justify-content:space-between;gap:15px;font-size:13px}.class-track{height:7px;background:#eef1ec;border-radius:20px;margin-top:8px;overflow:hidden}.class-fill{height:100%;background:var(--accent)}.next{padding:55px 0 30px}.next .button{margin:10px 8px 0 0}footer span{color:var(--muted);font-size:12px}button:disabled{opacity:.6;cursor:wait}textarea:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #ca9c1a;outline-offset:3px}@media(max-width:950px){.workspace{grid-template-columns:270px minmax(0,1fr)}main{padding:0 25px}.card{padding:20px}.metrics strong{font-size:25px}}@media(max-width:720px){main{padding:0 18px}.workspace{display:block}.results{margin-top:20px}.hero{padding:45px 0}.hero h1{letter-spacing:-2px}.section-heading .tag{margin-bottom:8px}header nav{gap:12px}header nav a{font-size:11px}header nav a:first-child{display:none}.brand{font-size:19px}.badge{margin-left:0;margin-top:8px}.hero .eyebrow{max-width:230px}.experiment{padding:40px 0}.metrics{gap:10px}.metrics strong{font-size:26px}h2{font-size:28px}}
/* Beginner lesson flow, using the existing classroom palette. */
.hero h1{font-size:clamp(40px,5.3vw,67px)}.roadmap,.pipeline{display:flex;gap:10px;list-style:none;counter-reset:route;padding:0;margin:30px 0 15px;flex-wrap:wrap}.roadmap li,.pipeline li{counter-increment:route;background:#edf4ee;border:1px solid #d1e1d5;border-radius:8px;padding:12px 17px;font-size:14px}.roadmap li:before{content:counter(route) ' / ';font-weight:700;color:var(--accent)}.pipeline li:not(:last-child):after{content:' →';margin-left:15px;color:var(--accent)}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.lesson-grid .card p{margin:8px 0}.lesson-grid h3{margin-bottom:10px}.sample-review{font:20px/1.45 Georgia,serif;min-height:60px}.concept-strip{display:flex;gap:30px;background:#f0f5ed;border:1px solid #dce7d8;border-radius:9px;padding:22px 25px;margin:25px 0}.concept-strip>div{flex:1;min-width:0}.concept-strip p{font-size:14px;margin:8px 0 0}.flow-arrow{align-self:center;font-size:25px;color:var(--accent)}.lesson-title{margin-top:38px}.feature-explorer{max-width:800px}.feature-explorer input[type=text]{width:100%;border:1px solid #b7cac1;border-radius:6px;padding:12px;font:17px/1.5 system-ui;color:var(--ink);background:#fffefb;margin-bottom:18px}.feature-explorer select{font-size:14px}.phrase-group h4{font-size:13px;color:var(--muted);margin:16px 0 8px}.experiment-record{margin-top:24px}.confusion caption{text-align:left;font-size:13px;color:var(--muted);margin:12px 0 9px}.confusion th,.confusion td{border:1px solid var(--line)}.confusion td{font-size:18px;text-align:center}.confusion tbody tr:first-child td:first-of-type,.confusion tbody tr:last-child td:last-child{background:#edf4ee}.challenge ol{margin:10px 0 0;padding-left:22px}.phrase-group .word-chip{font-size:13px}input[type=text]:focus-visible{outline:3px solid #ca9c1a;outline-offset:3px}.dial label{overflow-wrap:anywhere}#number-table th{white-space:nowrap}#number-table tbody th{white-space:normal;min-width:150px;font-weight:400}#experiment-rows td:nth-child(2){min-width:220px}@media(max-width:720px){.lesson-grid{grid-template-columns:1fr}.sample-review{min-height:0}.concept-strip{flex-direction:column;gap:16px;padding:20px}.flow-arrow{display:none}.roadmap{display:grid;grid-template-columns:1fr 1fr}.roadmap li{padding:10px;font-size:12px}.hero h1{font-size:40px}.pipeline li{font-size:12px;padding:10px}.lesson-grid .card{padding:18px}}