:root{color-scheme:dark;--background: #0e1116;--surface: #161b22;--raised: #1e252e;--border: #2a323d;--text: #e6edf3;--text-2: #9aa7b4;--accent: #f7df1e;--on-accent: #141414;--success: #3fb950;--error: #f85149;--info: #58a6ff;--code-bg: #0b0e13;--sans: "Onest", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--mono: "JetBrains Mono", ui-monospace, Menlo, monospace;--glow: 0 0 24px rgba(247, 223, 30, .35)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(900px 420px at 85% -80px,rgba(247,223,30,.07),transparent 70%) var(--background);background-repeat:no-repeat;color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.mono{font-family:var(--mono);font-variant-ligatures:none}code{font-family:var(--mono);font-variant-ligatures:none;font-size:.92em;font-weight:500;color:var(--text)}h2{margin:0 0 20px;font-size:clamp(24px,4vw,32px);line-height:1.2;font-weight:700;letter-spacing:-.02em}.page{max-width:1120px;margin:0 auto;padding:max(16px,env(safe-area-inset-top)) clamp(16px,4vw,32px) max(24px,env(safe-area-inset-bottom))}.bar{display:flex;align-items:center;justify-content:space-between;height:56px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;text-decoration:none}.brand img{border-radius:8px}.bar-link{color:var(--text-2);text-decoration:none;font-size:14px}.bar-link:hover{color:var(--text)}.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(24px,5vw,64px);align-items:center;padding:clamp(32px,8vw,96px) 0 clamp(32px,6vw,64px)}.kicker{margin:0 0 16px;color:var(--accent);font-size:14px}h1{margin:0;font-size:clamp(40px,5.6vw,60px);line-height:1.02;font-weight:800;letter-spacing:-.035em}h1 span{display:block;color:var(--text-2);font-weight:600}.lead{margin:20px 0 0;max-width:34em;color:var(--text-2);font-size:18px;line-height:1.55}.cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px 20px;margin-top:32px}.note{color:var(--text-2);font-size:14px}.play{display:inline-flex;align-items:center;gap:12px;height:56px;padding:0 24px 0 18px;border-radius:12px;background:var(--accent);color:var(--on-accent);text-decoration:none;font-weight:700;font-size:17px;line-height:1.1;box-shadow:var(--glow);transition:transform .15s,box-shadow .15s}.play:hover{transform:translateY(-1px);box-shadow:0 0 32px #f7df1e80}.play svg{width:26px;height:26px}.play small{display:block;font-size:11px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;opacity:.75}.quiz{margin:0;border:1px solid var(--border);border-radius:16px;background:var(--surface);overflow:hidden;box-shadow:0 24px 60px #00000073}.quiz-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;font-size:14px;font-weight:600;border-bottom:1px solid var(--border)}.dots{display:flex;gap:6px}.dots i{width:8px;height:8px;border-radius:50%;background:var(--raised)}.dots i:first-child{background:var(--accent)}.code{margin:0;padding:16px 16px 16px 8px;background:var(--code-bg);font-size:14px;line-height:1.6;overflow-x:auto;white-space:pre}.code code{font-weight:400;font-size:inherit}.ln{display:inline-block;width:2em;padding-right:12px;text-align:right;color:#4b5563;-webkit-user-select:none;user-select:none}.k{color:#ff7b72}.n{color:#79c0ff}.f{color:#d2a8ff}.hl{background:#f7df1e24;border-radius:3px}.options{display:grid;gap:8px;padding:16px}.opt{min-height:48px;padding:10px 14px;border:1px solid var(--border);border-radius:12px;background:var(--raised);color:var(--text);font-size:14px;text-align:left;cursor:pointer;transition:border-color .15s,background .15s,opacity .2s}.opt:hover:not(:disabled){border-color:var(--accent)}.opt:disabled{cursor:default}.opt.right{border-color:var(--success);background:#3fb95026}.opt.wrong{border-color:var(--error);background:#f8514926;animation:shake .3s}.opt.dim{opacity:.45}.explain{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s}.explain.open{grid-template-rows:1fr;padding:0 16px 16px}.explain>*{min-height:0}.explain b{display:block;font-size:14px}.explain .ok{color:var(--success)}.explain .no{color:var(--error)}.explain p{margin:6px 0 10px;color:var(--text-2);font-size:14px;line-height:1.55}.again{padding:0;border:0;background:none;color:var(--accent);font:inherit;font-size:14px;font-weight:600;cursor:pointer}@keyframes shake{25%{transform:translate(-4px)}75%{transform:translate(4px)}}.stats{display:grid;grid-template-columns:repeat(4,1fr);margin:0;padding:0;list-style:none;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.stats li{padding:20px;text-align:center}.stats li+li{border-left:1px solid var(--border)}.stats b{display:block;font-family:var(--mono);font-size:clamp(26px,4vw,36px);font-weight:500;color:var(--accent)}.stats span{color:var(--text-2);font-size:14px}.features{padding:clamp(56px,9vw,104px) 0 0}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.card{padding:24px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.tag{font-size:13px;color:var(--accent)}.card h3{margin:10px 0 8px;font-size:20px;line-height:1.3;font-weight:600}.card p{margin:0;color:var(--text-2)}.shots{margin:clamp(48px,8vw,88px) calc(-1*clamp(16px,4vw,32px)) 0}.strip{display:flex;gap:16px;padding:0 clamp(16px,4vw,32px) 12px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.strip img{flex:none;width:clamp(200px,24vw,270px);height:auto;aspect-ratio:9 / 16;border-radius:16px;scroll-snap-align:start}.topics,.respect{padding:clamp(56px,9vw,104px) 0 0;max-width:760px}.topics p{margin:0 0 14px;color:var(--text-2);font-size:17px;line-height:1.65}.respect ul{margin:0 0 32px;padding:0;list-style:none;display:grid;gap:10px}.respect li{display:flex;gap:12px;color:var(--text-2);font-size:17px}.respect li:before{content:"✓";color:var(--success);font-weight:700}.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;margin-top:clamp(64px,10vw,120px);padding-top:24px;border-top:1px solid var(--border);color:var(--text-2);font-size:14px}.foot nav{display:flex;flex-wrap:wrap;gap:8px 24px}.foot a{text-decoration:none}.foot a:hover{color:var(--text)}@media(max-width:820px){.hero,.grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.stats li:nth-child(3){border-left:0}.stats li:nth-child(n+3){border-top:1px solid var(--border)}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}