:root{--bg:#0a0b0e;--bg-2:#101218;--panel:#bec8eb09;--panel-2:#bec8eb13;--line:#bec8eb24;--line-2:#bec8eb42;--ink:#eef0f4;--ink-dim:#b7bdca;--ink-faint:#8f97a8;--accent:#c07cff;--accent-2:#d7adff;--accent-ink:#140a1f;--guide:#7cc4ff;--guide-2:#b0dcff;--guide-ink:#06192b;--page-bg:radial-gradient(90% 60% at 20% -10%, #c07cff1c, transparent 60%), radial-gradient(70% 60% at 100% 0%, #7cc4ff0f, transparent 60%), #0a0b0e}::selection{background:color-mix(in srgb, var(--accent) 40%, transparent);color:#fff}h1.title span{color:var(--accent-2)}@media (width<=760px){h1.title span{display:block}}.metastrip{font-family:var(--font-mono);color:var(--ink-dim);border-block:1px solid var(--line);flex-wrap:wrap;gap:8px 24px;margin:0 0 clamp(16px,2.4vw,24px);padding:12px 0;font-size:13px;list-style:none;display:flex}.metastrip b{color:var(--ink);font-weight:600}.synthpanel{gap:20px;display:grid}.chain{flex-wrap:wrap;align-items:stretch;gap:8px;margin:0;padding:0;list-style:none;display:flex}.chain li{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;flex:1 1 0;min-width:116px;padding:10px 12px;position:relative}.chain .t{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim);font-size:11px}.chain .v{color:var(--ink);font-variant-numeric:tabular-nums;margin-top:4px;font-size:13px;line-height:1.35}@media (width<=760px){.chain li{flex:44%}}.scopes{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid;position:relative}.scopebox{border:1px solid var(--line);background:#06070c;border-radius:12px;min-width:0;padding:8px 12px}.scopelab{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim);justify-content:space-between;align-items:center;gap:8px;margin-bottom:4px;font-size:11px;display:flex}.scopelab .live{color:var(--accent-2);align-items:center;gap:6px;display:inline-flex}.scopelab .live:before{content:"";background:var(--accent);width:6px;height:6px;box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);border-radius:50%}.scopes canvas{width:100%;height:150px;display:block}@media (width<=720px){.scopes{grid-template-columns:minmax(0,1fr)}.scopes canvas{height:128px}}.enable{z-index:4;cursor:pointer;width:100%;color:var(--ink);font:inherit;background:color-mix(in srgb, var(--bg) 58%, transparent);backdrop-filter:blur(2px);border:0;border-radius:12px;place-items:center;padding:0;display:grid;position:absolute;inset:0}.enable .pill{min-height:var(--tap);font-family:var(--font-mono);background:var(--bg-2);border:1px solid var(--accent);box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent);border-radius:999px;align-items:center;gap:8px;padding:0 18px;font-size:13px;animation:1.9s ease-in-out infinite enable-pulse;display:inline-flex}@keyframes enable-pulse{0%,to{box-shadow:0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent)}50%{box-shadow:0 0 0 9px color-mix(in srgb, var(--accent) 4%, transparent)}}@media (prefers-reduced-motion:reduce){.enable .pill{animation:none}}.synth-controls{flex-wrap:wrap;align-items:flex-end;gap:16px;display:flex}.synth-controls .field{gap:6px;min-width:0;display:grid}.field-label{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim);font-size:12px}.synth-controls .seg button{min-height:var(--tap)}.synth-controls #sculpt{margin-left:auto}@media (width<=520px){.synth-controls .field,.synth-controls .seg{width:100%}.synth-controls .seg{display:flex}.synth-controls .seg button{flex:auto;padding:0 4px;font-size:12px}.synth-controls #sculpt{width:100%;margin-left:0}}.sliders{grid-template-columns:repeat(4,minmax(0,1fr));gap:8px 24px;display:grid}@media (width<=860px){.sliders{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px}}.slider{min-width:0}.slider .top{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.slider label{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-dim);font-size:12px}.slider .val{font-family:var(--font-mono);color:var(--accent-2);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:12px}.slider input[type=range]{background:linear-gradient(var(--line-2), var(--line-2)) center / 100% 4px no-repeat;width:100%;max-width:none;height:40px;padding:0;display:block}.keyboard{background:var(--panel-2);border:1px solid var(--line);touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;border-radius:12px;height:168px;position:relative}.keyboard-keys{position:absolute;inset:8px}@media (width<=720px){.keyboard{height:148px}}.key{cursor:pointer;font:inherit;touch-action:none;-webkit-tap-highlight-color:transparent;border-top:0;justify-content:center;align-items:flex-end;padding:0;transition:background 50ms,box-shadow 50ms;display:flex;position:absolute;top:0}.key.white{color:#565c6b;z-index:1;background:linear-gradient(#f6f7fb,#e7eaf1);border:1px solid #c3c9d6;border-top:0;border-radius:0 0 7px 7px;height:100%}.key.black{color:#c4cbd8;z-index:2;background:linear-gradient(#2b303c,#10131b);border:1px solid #05070c;border-top:0;border-radius:0 0 6px 6px;height:62%;box-shadow:0 3px 6px #0000008c}.key .lab{font-family:var(--font-mono);pointer-events:none;padding-bottom:8px;font-size:11px}.key.black .lab{padding-bottom:6px;font-size:10px}.key.on{color:var(--accent-ink);background:var(--accent);border-color:var(--accent);box-shadow:0 0 16px color-mix(in srgb, var(--accent) 55%, transparent)}.key:focus-visible{z-index:3;outline-offset:-2px}.kbfoot{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 16px;display:flex}.kbfoot .hint{color:var(--ink-dim);flex:260px;margin:0;font-size:13px;line-height:1.5}.kbfoot .hint b{color:var(--ink);font-weight:600}.octctl{align-items:center;gap:8px;display:inline-flex}.octctl .readout-oct{font-family:var(--font-mono);color:var(--ink-dim);white-space:nowrap;font-size:13px}.octctl b{color:var(--accent-2);font-weight:600}.explain{margin-top:clamp(24px,3vw,32px)}.explain+.explain,.try{margin-top:16px}.lesson p+h2{margin-top:14px}.lesson em{font-style:italic}.lesson strong{font-weight:600}.scope-narrow{display:none}@media (width<=720px){.scope-wide{display:none}.scope-narrow{display:inline}}.try .prose-try{max-width:68ch;color:var(--ink-dim);margin:8px 0 0;line-height:1.6}.try .prose-try b{color:var(--ink);font-weight:600}.foot-link{color:var(--ink-dim);text-underline-offset:3px}footer.foot a.foot-link:hover{color:var(--accent-2)}footer.foot .credit a{color:var(--ink-dim);text-underline-offset:3px}