:root{--bg:#0f1320;--panel:#151a28;--ink:#e8e6e3;--dim:#8a8894;--coral:#f0c040;--line:#1e2640}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font:14px/1.5 ui-monospace,SF Mono,Menlo,Consolas,monospace}header{z-index:50;backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#0d0d12ed;align-items:baseline;gap:16px;padding:14px 22px;display:flex;position:sticky;top:0}header h1{font-size:16px}header h1 b{color:var(--coral)}header span{color:var(--dim);font-size:12px}.wrap{max-width:1400px;margin:0 auto;display:flex}nav{flex:none;align-self:flex-start;width:215px;max-height:calc(100vh - 52px);padding:20px 10px;position:sticky;top:52px;overflow:auto}nav a{color:var(--dim);border-left:2px solid #0000;padding:5px 10px;font-size:12px;text-decoration:none;display:block}nav a:hover{color:var(--ink);border-left-color:var(--coral)}main{flex:1;min-width:0;padding:26px 26px 80px}section{margin-bottom:44px}section h2{color:var(--coral);border-bottom:1px solid var(--line);margin-bottom:14px;padding-bottom:8px;font-size:15px}.grid{grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:16px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden}.chead{justify-content:space-between;align-items:baseline;gap:8px;padding:10px 12px 4px;display:flex}.chead h4{font-size:13px}.pill{color:var(--dim);border:1px solid var(--line);white-space:nowrap;border-radius:20px;padding:1px 8px;font-size:10px}.hint{color:var(--dim);padding:0 12px 8px;font-size:10.5px}.demo{border-top:1px solid var(--line);height:230px;position:relative}.demo canvas{cursor:crosshair;width:100%;height:100%;display:block;position:absolute;inset:0}.demo .htmldemo{justify-content:center;align-items:center;display:flex;position:absolute;inset:0;overflow:hidden}button.pill{cursor:pointer;color:var(--coral);background:0 0}footer{color:var(--dim);border-top:1px solid var(--line);padding:30px 26px;font-size:11px}.pulse-card{background:var(--panel);width:180px;height:90px;color:var(--dim);border-radius:10px;justify-content:center;align-items:center;font-size:11px;animation:2.2s ease-in-out infinite pulse;display:flex}@keyframes pulse{0%,to{box-shadow:0 0 #f0c04000}50%{box-shadow:0 0 0 6px #f0c0408c,0 0 24px 2px #f0c04059}}.glitch{letter-spacing:2px;font-size:32px;font-weight:800;position:relative}.glitch:before,.glitch:after{content:attr(data-t);position:absolute;inset:0}.glitch:before{color:#00e5ff;animation:2s steps(2,end) infinite gl1}.glitch:after{color:var(--coral);animation:1.7s steps(2,end) infinite gl2}@keyframes gl1{0%,92%{transform:none}93%{clip-path:inset(20% 0 40%);transform:translate(-3px,1px)}96%{clip-path:inset(60% 0 10%);transform:translate(3px,-1px)}to{transform:none}}@keyframes gl2{0%,88%{transform:none}89%{clip-path:inset(40% 0 30%);transform:translate(3px,2px)}94%{clip-path:inset(10% 0 70%);transform:translate(-2px)}to{transform:none}}.win98{color:#000;background:silver;border:2px solid #404040;border-color:#fff #404040 #404040 #fff;width:260px;font-size:11px;box-shadow:2px 2px #000}.win98 .bar{color:#fff;background:linear-gradient(90deg,navy,#1084d0);justify-content:space-between;padding:3px 6px;display:flex}.win98 .body{padding:12px 10px}.win98 .btns{justify-content:flex-end;gap:8px;padding:0 10px 10px;display:flex}.win98 button{cursor:pointer;background:silver;border:2px solid #404040;border-color:#fff #404040 #404040 #fff;padding:2px 14px;font-size:10px}.holo{filter:saturate(1.4);background:conic-gradient(#f0c040,#ffb84d,#7dff8a,#4dc3ff,#b84dff,#f0c040) 0 0/300% 300%;border-radius:10px;width:220px;height:120px;animation:5s linear infinite holo}@keyframes holo{0%{background-position:0%}to{background-position:300%}}.pats{gap:14px;display:flex}.pat{border:1px solid var(--line);width:110px;height:110px}.pat.a{background:repeating-linear-gradient(45deg,#f0c040 0 8px,#14141b 8px 20px)}.pat.b{background:repeating-conic-gradient(#1c1c28 0 25%,#f0c040 0 50%);background-size:24px 24px}.foldwrap{perspective:800px}.fold{border:1px solid var(--line);transform-origin:top;width:230px;height:120px;color:var(--dim);background:linear-gradient(135deg,#1c1c28,#101018);border-radius:8px;justify-content:center;align-items:center;font-size:11px;transition:transform .8s cubic-bezier(.2,.8,.2,1);display:flex}.foldwrap:hover .fold{color:var(--coral);transform:rotateX(55deg)}.flap{gap:4px;display:flex}.digit{color:#fff;background:#1c1c28;border:1px solid #333;border-radius:4px;justify-content:center;align-items:center;width:44px;height:60px;font-size:30px;transition:transform .12s,filter .12s;display:flex;position:relative}.digit.flip{filter:brightness(1.6);transform:rotateX(70deg)}.digit:after{content:"";background:#000;height:1px;position:absolute;top:50%;left:0;right:0}.rip{border:1px solid var(--coral);color:var(--coral);font:inherit;cursor:pointer;background:0 0;border-radius:6px;margin:0 6px;padding:10px 22px;font-size:12px;position:relative;overflow:hidden}.rip span{pointer-events:none;background:#f0c04080;border-radius:50%;animation:.55s ease-out rip;position:absolute;transform:scale(0)}@keyframes rip{to{opacity:0;transform:scale(3)}}.togs{flex-direction:column;gap:10px;display:flex}.tog{color:var(--dim);align-items:center;gap:10px;font-size:11px;display:flex}.tog input{appearance:none;cursor:pointer;background:#262633;border-radius:20px;width:40px;height:20px;transition:all .2s;position:relative}.tog input:after{content:"";background:#8a8894;border-radius:50%;width:16px;height:16px;transition:all .2s;position:absolute;top:2px;left:2px}.tog input:checked{background:var(--coral)}.tog input:checked:after{background:#fff;left:22px}.neobrutal{color:#000;cursor:pointer;background:#ffe066;border:3px solid #000;border-radius:6px;width:230px;padding:16px;transition:transform .15s,box-shadow .15s;box-shadow:8px 8px #000}.neobrutal:hover{transform:translate(3px,3px);box-shadow:5px 5px #000}.neobrutal h5{margin-bottom:6px;font-size:13px}.neobrutal p{color:#333;font-size:10.5px}.bit8{color:#fff;background:#14141b;width:230px;margin:12px;padding:14px;font-size:11px;box-shadow:0 -4px #fff,0 4px #fff,-4px 0 #fff,4px 0 #fff,0 -8px #f0c040,0 8px #f0c040}.glasscard{backdrop-filter:blur(10px)saturate(1.4);color:#eee;background:#ffffff14;border:1px solid #fff3;border-radius:14px;width:250px;padding:16px;font-size:11px;box-shadow:0 8px 32px #0006}.glassbg{background:conic-gradient(from 90deg,#1b2a4a,#5a1b3a,#1b4a3a,#334,#1b2a4a);position:absolute;inset:0}.skel{border:1px solid var(--line);background:var(--panel);border-radius:10px;width:240px;padding:14px}.skel .ln{background:linear-gradient(90deg,#20202c 25%,#2c2c3c 50%,#20202c 75%) 0 0/200% 100%;border-radius:5px;height:10px;margin-bottom:10px;animation:1.2s infinite shim}.skel.done .ln{background:#2a2a38;animation:none}@keyframes shim{to{background-position:-200% 0}}.spot{background:radial-gradient(circle 130px at var(--mx,50%) var(--my,50%),#f0c04040,transparent 70%);color:var(--dim);justify-content:center;align-items:center;font-size:12px;display:flex;position:absolute;inset:0}.term{color:#7dff8a;background:#08080c;padding:12px;font-size:11px;position:absolute;inset:0;overflow:hidden}.term .cur{vertical-align:middle;background:#7dff8a;width:7px;height:12px;animation:1s step-end infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.piano{display:flex}.pkey{cursor:pointer;background:#fff;border:1px solid #000;border-radius:0 0 4px 4px;width:26px;height:90px}.pkey.on{background:var(--coral)}.piano .bkey{background:#111;width:18px;height:55px;position:absolute;top:0}.pianowrap{position:relative}.magnet{border:1px solid var(--coral);color:var(--coral);cursor:pointer;background:0 0;border-radius:6px;padding:10px 18px;font-size:12px;transition:transform .15s;position:absolute}.revealwrap span{opacity:0;transition:all .5s cubic-bezier(.2,.8,.2,1);display:inline-block;transform:translateY(14px)}.revealwrap.play span{opacity:1;transform:none}.knob{cursor:grab;background:radial-gradient(circle at 35% 30%,#3a3a4a,#181820);border:2px solid #444;border-radius:50%;width:90px;height:90px;position:relative;box-shadow:0 4px 14px #00000080}.knob:after{content:"";background:var(--coral);transform-origin:50% 39px;border-radius:2px;width:4px;height:26px;position:absolute;top:6px;left:50%}.knobval{color:var(--dim);text-align:center;margin-top:10px;font-size:11px}.scrollpane{position:absolute;inset:0;overflow-y:auto}.slab{justify-content:center;align-items:center;height:60px;font-size:11px;display:flex;position:sticky;top:0}.slab.l1{background:#31121a}.slab.l2{color:#ffd9d9;background:#4a1b28}