:root{
  --bg:#f7f7f8;--paper:#fff;--ink:#17171a;--muted:#6f6f78;--line:#e3e3e8;
  --teal:#e85d04;--teal2:#ff7b00;--mint:#fff0e2;--navy:#24120a;--lime:#ffb703;
  --orange:#f59e0b;--rose:#e11d48;--violet:#7c3aed;--blue:#2563eb;--shadow:0 18px 52px rgba(13,57,51,.10);
  --r:22px;--r2:14px;--max:1460px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#fff4ea 0,#fafafa 28rem,#f5f5f7 100%);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}::selection{background:#99f6e4;color:#083a37}
.app-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:50;background:rgba(26,18,15,.96);backdrop-filter:blur(18px);color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}.topbar-inner{max-width:var(--max);margin:auto;padding:0 28px;height:72px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:12px;min-width:max-content;font-weight:850;letter-spacing:-.02em}.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(145deg,#ff7b00,#ffb703);display:grid;place-items:center;box-shadow:inset 0 0 0 1px rgba(255,255,255,.35)}.brand-mark svg{width:28px;height:28px}.brand span small{display:block;color:#ffd3b3;font-size:10px;letter-spacing:.14em;text-transform:uppercase}.nav{display:flex;gap:4px;overflow:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav button{border:0;background:transparent;color:#b9d5d0;padding:9px 11px;border-radius:11px;white-space:nowrap;font-size:14px}.nav button:hover,.nav button.active{color:white;background:rgba(255,255,255,.1)}.top-actions{margin-left:auto;display:flex;align-items:center;gap:10px}.search-pill{display:flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.07);border-radius:999px;padding:8px 11px;color:#cce6e1}.search-pill input{width:150px;border:0;background:transparent;color:white;outline:0}.search-pill input::placeholder{color:#a8c8c3}.progress-chip{border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:8px 11px;font-size:13px;color:#dff7f1;white-space:nowrap}
.main{max-width:var(--max);margin:auto;padding:34px 28px 70px}.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 80% 10%,rgba(255,183,3,.18),transparent 28%),radial-gradient(circle at 74% 80%,rgba(255,123,0,.20),transparent 36%),linear-gradient(135deg,#24120a,#4a1f0d 62%,#2c160d);color:white;border-radius:32px;padding:54px 54px 44px;box-shadow:0 28px 70px rgba(7,59,58,.22)}.hero:before{content:"";position:absolute;inset:-70px -140px auto auto;width:430px;height:430px;border:1px solid rgba(255,255,255,.13);border-radius:50%;box-shadow:0 0 0 44px rgba(255,255,255,.035),0 0 0 100px rgba(255,255,255,.025)}.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(340px,.65fr);gap:44px;align-items:center}.eyebrow{font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin-bottom:8px}.hero .eyebrow{color:#ffc89f}.hero h1{font-size:clamp(42px,5vw,78px);line-height:.98;letter-spacing:-.055em;margin:0 0 24px;max-width:880px}.hero p{font-size:18px;color:#f1d7c7;max-width:760px;margin:0 0 28px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn{border:0;border-radius:13px;padding:12px 17px;font-weight:760;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s transform,.18s background,.18s box-shadow}.btn:hover{transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,#ff8a1f,#ffb703);color:#2a1309;box-shadow:0 10px 28px rgba(45,212,191,.24)}.btn.secondary{background:#fff;color:#0b4f4a}.btn.ghost{background:transparent;color:inherit;border:1px solid var(--line)}.hero .btn.ghost{border-color:rgba(255,255,255,.22);color:#fff;background:rgba(255,255,255,.05)}.hero-visual{min-height:330px;display:grid;place-items:center;position:relative}.hero-formula{position:absolute;right:5px;top:5px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:16px;padding:12px 15px;font-weight:800}.hero-atom{width:min(100%,390px);filter:drop-shadow(0 18px 30px rgba(0,0,0,.18))}.hero-metrics{position:relative;margin-top:38px;display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.metric{background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:15px}.metric b{display:block;font-size:24px;line-height:1.1}.metric span{font-size:12px;color:#e7c7b4}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:48px 0 18px}.section-head h2,.page-head h1{margin:0;letter-spacing:-.035em}.section-head h2{font-size:31px}.section-head p,.page-head p{color:var(--muted);max-width:800px;margin:6px 0 0}.page-head{margin:6px 0 28px}.page-head h1{font-size:clamp(36px,4vw,58px);line-height:1.02}.grid{display:grid;gap:16px}.module-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.module-card{position:relative;min-height:214px;padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:0 5px 22px rgba(23,66,59,.04);overflow:hidden;transition:.2s transform,.2s box-shadow}.module-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.module-card:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;right:-36px;bottom:-45px;background:var(--accent,#d5f5ed);opacity:.7}.module-icon{width:48px;height:48px;border-radius:15px;background:var(--accent,#d5f5ed);display:grid;place-items:center;font-size:24px}.module-card h3{font-size:21px;margin:18px 0 6px;letter-spacing:-.02em}.module-card p{font-size:14px;color:var(--muted);margin:0 0 18px}.module-meta{display:flex;justify-content:space-between;gap:10px;font-size:12px;color:#53645f}.bar{height:7px;border-radius:999px;background:#eaf0ed;overflow:hidden}.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--teal2));border-radius:inherit}.continue-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:28px;background:linear-gradient(135deg,#e0faf3,#f5ffe9);border:1px solid #b9eadb;border-radius:var(--r);padding:26px 28px}.continue-card h3{margin:0 0 7px;font-size:24px}.continue-card p{margin:0;color:#55706a}.feature-grid{grid-template-columns:repeat(4,1fr)}.feature{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.feature .ico{font-size:26px}.feature h3{margin:10px 0 5px}.feature p{font-size:13px;color:var(--muted);margin:0}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:14px}.breadcrumbs button{border:0;background:none;color:var(--teal);padding:0}.lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.lesson-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:17px 18px;background:#fff;border:1px solid var(--line);border-radius:17px;text-align:left;transition:.16s}.lesson-row:hover{border-color:#91d8c9;box-shadow:0 8px 26px rgba(15,118,110,.08)}.lesson-number{width:38px;height:38px;border-radius:12px;background:#e9f7f3;color:var(--teal);display:grid;place-items:center;font-weight:850}.lesson-row.done .lesson-number{background:var(--teal);color:white}.lesson-row h3{font-size:16px;margin:0 0 3px}.lesson-row p{font-size:12px;color:var(--muted);margin:0}.lesson-state{text-align:right;font-size:12px;color:var(--muted)}.lesson-state b{display:block;color:var(--ink);font-size:13px}
.lesson-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}.lesson-intro{background:#fff;border:1px solid var(--line);border-radius:26px;padding:31px}.lesson-intro h1{font-size:clamp(34px,4vw,54px);line-height:1.02;letter-spacing:-.04em;margin:4px 0 15px}.lesson-intro .subtitle{font-size:18px;color:#405b55}.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.tag{font-size:11px;font-weight:750;border-radius:999px;background:#eff7f4;color:#3b5c55;padding:6px 9px}.visual-card{background:linear-gradient(145deg,#1b1b1f,#2b2b32);border-radius:26px;padding:18px;display:grid;place-items:center;min-height:330px;overflow:hidden}.visual-card svg{width:100%;max-height:310px}.goal-grid{grid-template-columns:repeat(2,1fr);margin-top:18px}.goal{background:#f8fbfa;border:1px solid var(--line);border-radius:15px;padding:15px}.goal b{color:var(--teal)}.lesson-sections{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:18px}.theory-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.theory-card h3{margin:0 0 8px;font-size:18px}.theory-card p{margin:0;color:#455c57}.formula-card{margin-top:18px;background:linear-gradient(135deg,#1b1b1f,#2b2b32);color:white;border-radius:22px;padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px}.formula-display{font-family:"Cambria Math",Georgia,serif;font-size:26px;padding:18px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);border-radius:15px;overflow:auto}.formula-card dl{margin:0}.formula-card dl div{display:grid;grid-template-columns:95px 1fr;gap:10px;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.08)}.formula-card dt{font-weight:800;color:#9ef3e3}.formula-card dd{margin:0;color:#cbe2de;font-size:13px}.worked{margin-top:18px;background:#fff7e8;border:1px solid #f4d89e;border-radius:22px;padding:23px}.worked h3{margin:0 0 12px}.steps{counter-reset:step;display:grid;gap:8px}.step{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:start}.step:before{counter-increment:step;content:counter(step);width:25px;height:25px;border-radius:8px;background:#f59e0b;color:white;display:grid;place-items:center;font-weight:800;font-size:12px}.answer-box{margin-top:12px;padding:11px 13px;background:#fff;border-radius:12px;font-weight:700}.misconception{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.misconception>div{border-radius:16px;padding:16px}.wrong{background:#fff0f1;border:1px solid #fecdd3}.right{background:#ecfdf5;border:1px solid #bbf7d0}.wrong b{color:#be123c}.right b{color:#047857}
.lab-card{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px}.lab-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center}.lab-controls{display:grid;gap:16px}.range-label{display:flex;justify-content:space-between;gap:10px;font-size:13px}.range-label b{font-size:15px}.range{width:100%;accent-color:var(--teal)}.lab-result{background:#eafaf4;border:1px solid #bce8da;border-radius:16px;padding:15px;font-size:14px}.lab-result strong{font-size:28px;display:block;letter-spacing:-.03em;color:#075f58}.chart{width:100%;height:250px;background:linear-gradient(#fbfdfc,#f0f7f4);border:1px solid var(--line);border-radius:16px}.lab-insight{font-size:13px;color:#50645f;margin-top:12px}.quiz{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px}.quiz-top{display:flex;justify-content:space-between;gap:20px;align-items:start}.quiz-top h2{margin:0}.quiz-progress{font-size:12px;color:var(--muted)}.quiz-question{font-size:20px;font-weight:750;margin:22px 0 14px}.options{display:grid;gap:9px}.option{display:grid;grid-template-columns:32px 1fr;gap:10px;align-items:start;border:1px solid var(--line);background:#fbfdfc;border-radius:13px;padding:12px;text-align:left}.option:hover{border-color:#82cabb}.option.selected{border-color:var(--teal);background:#effbf7}.option.correct{border-color:#16a34a;background:#effdf4}.option.incorrect{border-color:#e11d48;background:#fff1f2}.option-letter{width:26px;height:26px;border-radius:8px;background:#e8f2ef;display:grid;place-items:center;font-weight:850}.feedback{margin-top:12px;border-radius:13px;padding:12px 14px;background:#f2f7f5;color:#3e5651}.quiz-actions{display:flex;gap:10px;margin-top:15px}.score-screen{text-align:center;padding:24px}.score-circle{width:110px;height:110px;border-radius:50%;margin:12px auto 20px;background:conic-gradient(var(--teal) var(--score),#e7efec 0);display:grid;place-items:center}.score-circle:after{content:"";width:82px;height:82px;border-radius:50%;background:white;position:absolute}.score-circle b{position:relative;z-index:2;font-size:24px}
.trainer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.trainer{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.trainer.wide{grid-column:1/-1}.trainer h3{font-size:21px;margin:2px 0 8px}.trainer p{color:var(--muted);font-size:13px}.trainer-result{margin-top:14px;border-radius:13px;background:#e9faf4;border:1px solid #bcebdd;padding:12px;font-weight:750}.trainer-error{background:#fff1f2;border-color:#fecdd3;color:#9f1239}.trainer-success{background:#ecfdf5;border:1px solid #bbf7d0;color:#047857}.coef-row{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:18px}.coef-row input{width:50px;padding:8px;border:1px solid var(--line);border-radius:9px;text-align:center}.trainer .controls{display:grid;gap:10px;margin-top:12px}.trainer-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.ph-scale{height:18px;border-radius:999px;background:linear-gradient(90deg,#dc2626,#f59e0b,#fde047,#22c55e,#06b6d4,#2563eb,#7c3aed);position:relative}.ph-scale i{position:absolute;top:-5px;width:4px;height:28px;background:#111;border:2px solid white;border-radius:4px}.carbon-chain{display:flex;gap:0;align-items:center;flex-wrap:wrap;margin-top:14px}.carbon-chain span{display:flex;align-items:center;font-weight:900}.carbon-chain i{font-style:normal;color:var(--teal);margin:0 3px}
.reference-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.ref-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.ref-card h3{margin:0 0 12px}.ref-card ul{padding-left:18px;color:#465b56}.ref-card li{margin:7px 0}.mini-formula{font-family:"Cambria Math",serif;background:#f1f7f5;border-radius:10px;padding:8px 10px;margin:7px 0;overflow:auto}.exam-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.exam-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.exam-card h3{font-size:22px;margin:4px 0 7px}.exam-card p{color:var(--muted)}.exam-meta{display:flex;gap:14px;font-size:12px;color:#566a65;margin:14px 0}.exam-shell{max-width:1000px;margin:auto}.timer{font-variant-numeric:tabular-nums;font-weight:850;color:#b45309}.exam-nav{display:flex;gap:6px;flex-wrap:wrap;margin:15px 0}.qdot{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff}.qdot.answered{background:#dff7ef;border-color:#8cd7c6}.qdot.current{outline:2px solid var(--teal)}.progress-grid{grid-template-columns:1.1fr .9fr}.progress-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.module-progress-row{display:grid;grid-template-columns:190px 1fr 60px;gap:14px;align-items:center;padding:9px 0;border-bottom:1px solid #eef3f1;font-size:13px}.history-item{padding:10px 0;border-bottom:1px solid #eef3f1}.empty{padding:46px;text-align:center;color:var(--muted)}
.search-results{position:absolute;top:62px;right:28px;width:min(520px,calc(100vw - 30px));max-height:65vh;overflow:auto;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:18px;box-shadow:0 25px 70px rgba(0,0,0,.22);padding:9px}.search-result{width:100%;text-align:left;border:0;background:transparent;border-radius:11px;padding:10px}.search-result:hover{background:#f0f8f5}.search-result small{display:block;color:var(--muted)}.toast{position:fixed;right:24px;bottom:24px;z-index:100;background:#073b3a;color:white;border-radius:14px;padding:12px 16px;box-shadow:var(--shadow);animation:toastIn .22s ease}@keyframes toastIn{from{transform:translateY(12px);opacity:0}}
@media(max-width:1150px){.module-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:repeat(2,1fr)}.hero-grid{grid-template-columns:1fr}.hero-visual{min-height:250px}.hero-atom{max-width:300px}.hero-metrics{grid-template-columns:repeat(3,1fr)}.reference-grid{grid-template-columns:repeat(2,1fr)}.top-actions .progress-chip{display:none}}
@media(max-width:800px){.topbar-inner{padding:0 14px;height:auto;min-height:64px;flex-wrap:wrap;gap:8px;padding-top:8px;padding-bottom:8px}.brand span{display:none}.nav{order:3;width:100%}.top-actions{margin-left:auto}.search-pill input{width:110px}.main{padding:22px 14px 60px}.hero{padding:34px 23px;border-radius:24px}.hero h1{font-size:46px}.hero-metrics{grid-template-columns:repeat(2,1fr)}.module-grid,.lesson-list,.lesson-hero,.lesson-sections,.goal-grid,.trainer-grid,.exam-grid,.reference-grid,.progress-grid{grid-template-columns:1fr}.trainer.wide{grid-column:auto}.formula-card,.lab-layout,.misconception{grid-template-columns:1fr}.continue-card{grid-template-columns:1fr}.lesson-intro{padding:22px}.visual-card{min-height:240px}.module-progress-row{grid-template-columns:1fr}.search-results{right:10px;top:58px}.feature-grid{grid-template-columns:1fr}.hero-visual{display:none}}
.swift-hero{box-shadow:0 28px 70px rgba(77,31,10,.24)}
.swift-visual{padding:16px;display:block}.swift-visual .code-window{height:100%;margin:0}
.code-window{background:#17171b;border:1px solid #35353d;border-radius:17px;overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.20);color:#f4f4f5}
.code-dots{height:42px;display:flex;align-items:center;gap:7px;padding:0 13px;border-bottom:1px solid #303038;color:#9f9fa9;font-size:11px}.code-dots i{width:10px;height:10px;border-radius:50%;background:#ff5f57}.code-dots i:nth-child(2){background:#febc2e}.code-dots i:nth-child(3){background:#28c840}.code-dots span{margin-left:6px}.code-dots button{margin-left:auto;border:1px solid #45454e;background:#25252b;color:#c9c9d0;border-radius:8px;padding:4px 8px;font-size:10px}
.code-window pre{margin:0;padding:18px;overflow:auto;white-space:pre;font:13px/1.65 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;tab-size:4}.hero-code{width:100%;max-width:470px;transform:rotate(1deg)}.hero-code pre{font-size:16px;min-height:240px}.hero-code code b{color:#ff9f43}.hero-code code em{color:#a7f3d0;font-style:normal}
.tok-key{color:#ff8a65}.tok-type{color:#7dd3fc}.tok-string{color:#a7f3d0}.tok-num{color:#c4b5fd}
.code-lesson-card{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}.output-panel{border:1px solid var(--line);background:#fff;border-radius:20px;padding:20px}.output-panel span{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:800}.output-panel pre{white-space:pre-wrap;background:#f5f5f7;border-radius:12px;padding:12px;font:13px/1.5 ui-monospace,monospace}.output-panel p{font-size:13px;color:var(--muted)}
.trace-card,.kata,.notes-card,.toolchain-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}.trace-steps{display:flex;gap:8px;flex-wrap:wrap}.trace-tab{border:1px solid var(--line);background:#fafafa;border-radius:11px;padding:9px 12px;font-weight:750}.trace-tab.active{border-color:#ff8a1f;background:#fff2e6;color:#ad3e00}.trace-body{margin-top:14px;background:#fafafa;border-radius:15px;padding:18px}.trace-body p{margin:6px 0 0;color:#52525b}
.kata textarea,.notes-card textarea{width:100%;min-height:280px;border:1px solid #2e2e35;border-radius:15px;background:#17171b;color:#f4f4f5;padding:16px;resize:vertical;font:13px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;outline:none}.notes-card{margin-top:18px}.notes-card textarea{min-height:130px;background:#fafafa;color:var(--ink);border-color:var(--line);font-family:inherit}.kata-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.kata-result{margin-top:12px;padding:12px;border-radius:12px;background:#f5f5f7;color:#52525b}.kata-result.good{background:#ecfdf5;color:#047857;border:1px solid #bbf7d0}.kata-result.bad{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}.kata-result code{background:#e8e8ed;border-radius:6px;padding:2px 5px}.lesson-nav{display:flex;justify-content:space-between;gap:10px;margin-top:22px}
.bookmark{border:0;cursor:pointer}.bookmark.on{background:#fff2d6;color:#a35400}.trainer-badge{font-size:11px;font-weight:800;color:#c2410c;background:#fff0e5;padding:5px 8px;border-radius:999px;display:inline-block}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:100;display:grid;place-items:center;padding:18px}.trainer-modal{position:relative;width:min(760px,100%);background:#fff;border-radius:24px;padding:26px;box-shadow:0 30px 90px rgba(0,0,0,.25)}.modal-x{position:absolute;right:16px;top:13px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:23px}.code-question{white-space:pre-wrap;font-family:ui-monospace,monospace;background:#f5f5f7;border-radius:14px;padding:14px}.play-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.playground textarea{min-height:520px}.toolchain-card ol{padding-left:20px}.toolchain-card code,.mini-code{font-family:ui-monospace,monospace}.callout{margin-top:16px;background:#fff2e6;border:1px solid #ffd1ad;border-radius:13px;padding:13px;color:#7c2d12}.mini-code{background:#f5f5f7;border-radius:10px;padding:8px 10px;margin:7px 0;font-size:12px;overflow:auto}.bookmark-row{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid #eee;background:#fff;padding:10px 0;color:#c2410c}.empty.small{padding:16px}.danger{color:#be123c!important}
@media(max-width:900px){.code-lesson-card,.play-layout{grid-template-columns:1fr}.hero-code{transform:none}.lesson-nav{flex-wrap:wrap}}
.hero-metrics{grid-template-columns:repeat(6,1fr)}
.project-grid{display:grid;gap:18px}.project-card{display:grid;grid-template-columns:90px 1fr;gap:22px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px}.project-no{width:70px;height:70px;border-radius:20px;background:linear-gradient(145deg,#ff7b00,#ffb703);display:grid;place-items:center;color:#2a1309;font-weight:950;font-size:22px}.project-card h2{margin:0 0 8px;font-size:28px}.project-card>div>p{color:var(--muted)}.project-skills{display:flex;gap:7px;flex-wrap:wrap}.project-skills span{font-size:11px;background:#fff2e6;color:#9a3412;padding:5px 8px;border-radius:999px}.project-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px}.project-cols>div{background:#fafafa;border-radius:14px;padding:14px}.project-cols h3{margin:0 0 6px;font-size:14px}.project-cols ul{margin:0;padding-left:18px;font-size:13px;color:#52525b}
@media(max-width:1150px){.hero-metrics{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.hero-metrics{grid-template-columns:repeat(2,1fr)}.project-card{grid-template-columns:1fr}.project-cols{grid-template-columns:1fr}}
.tok-comment{color:#8b8b95;font-style:italic}