:root{color-scheme:dark;--bg:#0c111d;--surface:#131a29;--surface-2:#192233;--text:#f4f6fb;--muted:#8993a6;--lime:#a8ff78;--line:rgba(255,255,255,.09);--safe-bottom:env(safe-area-inset-bottom,0px);--mono:ui-monospace,"SFMono-Regular",Consolas,monospace;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-width:320px;background:var(--bg);color:var(--text)}button,input{font:inherit}button{color:inherit}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}#app{min-height:100vh;padding-bottom:calc(84px + var(--safe-bottom));overflow:hidden}.topbar{height:76px;padding:14px 20px;display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;background:#0c111de6;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand-mark{width:44px;height:44px;display:grid;place-items:center;background:var(--lime);color:#0a111b;border-radius:12px 12px 12px 3px;font:700 17px ui-monospace,SFMono-Regular,Consolas,monospace;box-shadow:0 0 30px #a8ff7826}.topbar__title{min-width:0;display:flex;flex-direction:column}.topbar__title span,.eyebrow,.page-intro>span,.section-heading span,.search-hints>span{font-size:10px;font-weight:800;letter-spacing:.18em;color:var(--lime)}.topbar__title strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:16px}.streak{margin-left:auto;width:44px;height:44px;border-radius:50%;padding:3px;background:conic-gradient(var(--lime) calc(var(--p, 65)*1%),var(--surface-2) 0);display:grid;place-items:center}.streak:before{content:"";position:absolute;width:36px;height:36px;border-radius:50%;background:var(--surface)}.streak span{position:relative;font-size:10px;font-weight:800}.icon-btn{border:0;background:var(--surface-2);width:44px;height:44px;border-radius:12px;display:grid;place-items:center;cursor:pointer}.bookmark-action{margin-left:auto}.bookmark-action.active{color:var(--lime);background:#a8ff781f}.bookmark-action.active svg{fill:currentColor}main{max-width:920px;margin:auto}.hero{min-height:440px;padding:58px 24px 40px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}.eyebrow{display:flex;gap:8px;align-items:center}.eyebrow i{width:26px;height:1px;background:var(--lime)}.hero h1{margin:20px 0 18px;font-size:clamp(44px,12vw,80px);line-height:.98;letter-spacing:-.06em;max-width:650px}.hero h1 em{color:var(--lime);font-style:normal}.hero>p{color:var(--muted);font-size:15px;line-height:1.65;max-width:450px}.primary-btn,.complete-btn{margin-top:22px;border:0;border-radius:14px;background:var(--lime);color:#09110b;padding:15px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;box-shadow:0 10px 30px #a8ff781f}.primary-btn svg{width:18px}.hero-orbit{position:absolute;border:1px solid rgba(168,255,120,.18);border-radius:50%;pointer-events:none}.orbit-one{width:330px;height:330px;right:-170px;top:10px}.orbit-two{width:220px;height:220px;right:-95px;top:65px}.hero-code{position:absolute;right:20px;top:185px;color:var(--lime);font:600 24px ui-monospace,SFMono-Regular,Consolas,monospace;transform:rotate(-10deg)}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line)}.stats-row div{padding:20px 10px;text-align:center;border-right:1px solid var(--line)}.stats-row div:last-child{border:0}.stats-row strong{display:block;font:600 22px var(--mono)}.stats-row span{color:var(--muted);font-size:11px}.section-block{padding:36px 18px}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.section-heading h2{margin:6px 0 0;font-size:25px}.section-heading button{border:0;background:none;color:var(--muted);font-size:12px;display:flex;align-items:center;gap:4px;cursor:pointer}.section-heading button svg{width:14px}.module-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.module-card{min-height:205px;text-align:left;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,#ffffff0a,#ffffff04);padding:16px;cursor:pointer;position:relative;overflow:hidden}.module-card:after{content:"";position:absolute;width:100px;height:100px;right:-60px;top:-50px;border:1px solid var(--accent);border-radius:50%;opacity:.2}.module-card__top{display:flex;justify-content:space-between;color:var(--accent);font:600 12px var(--mono)}.module-icon{font-size:23px}.module-card h3{margin:28px 0 8px;font-size:17px}.module-card p{color:var(--muted);font-size:11px;line-height:1.5;height:34px;overflow:hidden}.module-progress{display:flex;gap:10px;align-items:center;margin-top:17px}.module-progress>span{height:3px;background:var(--surface-2);flex:1}.module-progress i{display:block;height:100%;background:var(--accent)}.module-progress b{color:var(--muted);font:500 9px var(--mono)}.quote-card{margin:0 18px 30px;padding:24px;border-radius:18px;background:var(--surface);border:1px solid var(--line);position:relative}.quote-card>span{color:var(--lime);font:600 50px Georgia;line-height:.5}.quote-card p{font-size:17px;font-weight:700;line-height:1.5}.quote-card small{color:var(--muted);font-size:9px;letter-spacing:.12em}.course-note{margin:0 26px 22px;color:#596375;font-size:10px;line-height:1.6;text-align:center}.course-note a{color:#8792a5}.bottom-nav{position:fixed;z-index:30;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);height:calc(68px + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:#0f1521f2;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.bottom-nav button{border:0;background:none;color:#667085;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:9px;cursor:pointer}.bottom-nav button.active{color:var(--lime)}.bottom-nav svg{width:20px;height:20px}.catalog{padding:32px 18px}.page-intro h1{margin:8px 0;font-size:34px;letter-spacing:-.04em}.page-intro p{color:var(--muted);font-size:13px;line-height:1.6;margin:0 0 28px;max-width:560px}.catalog-modules{display:flex;flex-direction:column;gap:10px}.catalog-module button{width:100%;display:flex;align-items:center;gap:14px;padding:17px;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:15px;cursor:pointer}.catalog-module button>span{width:42px;height:42px;display:grid;place-items:center;flex:none;border-radius:11px;background:color-mix(in srgb,var(--accent) 15%,transparent);color:var(--accent);font:600 12px var(--mono)}.catalog-module div{flex:1;min-width:0}.catalog-module h2{margin:0 0 3px;font-size:15px}.catalog-module p{margin:0;color:var(--muted);font-size:10px}.catalog-module svg{width:17px;color:var(--muted)}.lesson-list{display:flex;flex-direction:column}.lesson-row{display:grid;grid-template-columns:38px 1fr 20px;gap:12px;align-items:start;text-align:left;padding:18px 2px;border:0;border-bottom:1px solid var(--line);background:none;cursor:pointer}.lesson-status{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;color:var(--muted);font:500 10px var(--mono)}.lesson-row.done .lesson-status{color:#08100b;background:var(--accent);border-color:var(--accent)}.lesson-row.done .lesson-status svg{width:17px}.lesson-row h3{margin:0 0 5px;font-size:15px}.lesson-row p{color:var(--muted);font-size:11px;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lesson-row small{color:#5e6879;display:flex;align-items:center;gap:4px;margin-top:7px;font-size:9px}.lesson-row small svg,.lesson-row>svg{width:14px}.lesson-row>svg{margin-top:9px;color:var(--muted)}.lesson{padding-bottom:40px}.lesson-hero{padding:50px 22px 42px;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--accent) 13%,transparent),transparent 45%);border-bottom:1px solid var(--line)}.lesson-hero span{color:var(--accent);font-size:10px;font-weight:800;letter-spacing:.15em}.lesson-hero h1{margin:10px 0 15px;font-size:38px;letter-spacing:-.05em;line-height:1.08}.lesson-hero p{margin:0;color:#aeb6c5;line-height:1.65;font-size:14px}.lesson article{padding:30px 18px}.lesson article>h2{display:flex;align-items:center;gap:10px;margin:28px 0 16px;font-size:18px}.lesson article>h2:first-child{margin-top:0}.lesson article>h2 i{color:var(--accent);font:500 10px var(--mono);font-style:normal}.theory-list{padding:0;margin:0;list-style:none;display:flex;flex-direction:column;gap:10px}.theory-list li{display:flex;gap:11px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:13px}.theory-list li>span{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;flex:none;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}.theory-list svg{width:14px}.theory-list p{margin:1px 0;color:#c4cad5;font-size:12px;line-height:1.55}.code-card{background:#080c14;border:1px solid var(--line);border-radius:14px;overflow:hidden}.code-card>div{height:42px;display:flex;align-items:center;gap:6px;padding:0 12px;border-bottom:1px solid var(--line)}.code-card>div>span{width:7px;height:7px;border-radius:50%;background:#ff6b6b}.code-card>div>span:nth-child(2){background:#ffd166}.code-card>div>span:nth-child(3){background:#72e890}.code-card b{color:#667085;font:500 9px var(--mono);margin-left:4px}.code-card button{margin-left:auto;border:0;background:none;color:#7d8798;font-size:9px;display:flex;align-items:center;gap:4px;cursor:pointer}.code-card button svg{width:13px}.code-card pre{margin:0;padding:18px;overflow:auto;color:#d9f99d;font:500 11px/1.8 var(--mono)}.quiz-card{background:var(--surface);border:1px solid var(--line);border-radius:15px;padding:16px}.quiz-card h3{margin:0 0 14px;font-size:14px;line-height:1.5}.quiz-options{display:flex;flex-direction:column;gap:8px}.quiz-options button{padding:11px;display:flex;gap:10px;align-items:center;text-align:left;color:#b9c1ce;border:1px solid var(--line);background:#0e1522;border-radius:10px;font-size:11px;cursor:pointer}.quiz-options button>span{width:24px;height:24px;border-radius:7px;display:grid;place-items:center;background:var(--surface-2);font:500 9px var(--mono)}.quiz-options button.correct{border-color:#57d38c;color:#a7f3d0}.quiz-options button.correct>span{background:#1d6d48}.quiz-options button.wrong{border-color:#ef6a75;color:#fecdd3}.quiz-options button.wrong>span{background:#7f2732}.quiz-note{margin:12px 2px 0;color:var(--muted);font-size:11px;line-height:1.5}.complete-btn{width:100%;margin-top:24px}.complete-btn.completed{background:var(--surface-2);color:var(--lime);box-shadow:none}.complete-btn svg{width:18px}.search-box{height:50px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:0 14px}.search-box svg{color:var(--muted);width:18px}.search-box input{flex:1;min-width:0;color:var(--text);background:none;border:0;outline:0;font-size:13px}.search-box button{background:none;border:0;color:var(--muted);font-size:22px;cursor:pointer}.search-hints{margin-top:30px;display:flex;gap:8px;flex-wrap:wrap}.search-hints>span{width:100%;margin-bottom:4px}.search-hints button{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:9px 12px;color:#aab2c1;font-size:11px;cursor:pointer}.result-count{color:var(--muted);font-size:11px;margin:24px 0 0}.empty-state{padding:65px 20px;text-align:center;color:var(--muted)}.empty-state i{display:grid;place-items:center;margin:auto;width:62px;height:62px;border:1px solid var(--line);border-radius:18px;font:500 25px var(--mono);color:var(--lime)}.empty-state h2{color:var(--text);font-size:19px;margin:18px 0 7px}.empty-state p{font-size:12px;line-height:1.6}@media(min-width:700px){.module-grid{grid-template-columns:repeat(4,1fr)}.hero{padding-left:40px}.section-block,.catalog{padding-left:32px;padding-right:32px}.lesson article{padding-left:60px;padding-right:60px}.bottom-nav{left:50%;transform:translate(-50%);max-width:520px;border:1px solid var(--line);border-bottom:0;border-radius:18px 18px 0 0}.catalog-modules{display:grid;grid-template-columns:repeat(2,1fr)}.lesson-hero{padding-left:60px;padding-right:60px}}@media(max-width:370px){.hero h1{font-size:41px}.module-card{min-height:190px}.module-card h3{font-size:15px}.topbar{padding-inline:14px}}@media(prefers-reduced-motion:no-preference){button{transition:transform .15s,background .2s,border-color .2s,color .2s}button:active{transform:scale(.97)}.hero-code{animation:float 3s ease-in-out infinite}@keyframes float{50%{transform:translateY(-8px) rotate(-7deg)}}}
