.arcade{--game-accent:#b49aff;max-width:1000px;color:var(--text-main);box-sizing:border-box;min-height:100dvh;margin:0 auto;padding:28px 24px 18px}.arcade-header{color:var(--game-accent);align-items:center;gap:12px;display:flex}.arcade-header h1{font-family:var(--font-display);letter-spacing:-.045em;background:linear-gradient(105deg, var(--game-accent), #fff);color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(22px,4vw,34px)}.arcade-header>a{border:1px solid var(--border-strong);color:#ccc;border-radius:12px;place-items:center;width:38px;height:38px;margin-right:8px;display:grid}.arcade-prototype{letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--border-strong);color:#999;border-radius:12px;margin-left:auto;padding:5px 8px;font-size:10px}.arcade-intro{color:var(--text-muted);margin:16px 0 24px;font-size:14px;line-height:1.7}.arcade-game{border:1px solid var(--border-strong);box-shadow:0 24px 80px #0004, 0 0 60px color-mix(in srgb, var(--game-accent) 4%, transparent);background:#111113;border-radius:24px;overflow:hidden}.arcade-stats{border-bottom:1px solid var(--border-strong);color:var(--text-muted);background:#1b1b1d;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:16px 24px;font-size:12px;display:flex}.arcade-stats strong{color:#eee;font-variant-numeric:tabular-nums;margin-left:6px;display:inline-block}.arcade-stage{width:100%;max-width:620px;color:var(--game-accent);aspect-ratio:1;touch-action:manipulation;background:0 0;border:0;margin:0 auto;padding:0;display:block;position:relative}.arcade-stage svg{width:100%;height:100%;display:block}.arcade-stage:disabled{opacity:1;cursor:var(--cursor-default)}.arcade-stage:not(:disabled){cursor:var(--cursor-crosshair)}.arcade-glow{filter:drop-shadow(0 0 5px)}.arcade-message{text-align:center;min-height:22px;color:var(--game-accent);margin:8px 0 16px;padding:0 18px;font-size:13px}.arcade-actions{border-top:1px solid var(--border-strong);background:#1b1b1d;flex-wrap:wrap;justify-content:center;gap:10px;padding:18px;display:flex}.arcade-actions button,.arcade-button{border:1px solid var(--border-strong);color:#eee;min-height:44px;cursor:var(--cursor-pointer);background:#29292c;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;transition:box-shadow .18s,border-color .18s,transform .18s;display:inline-flex}.arcade-actions button:hover,.arcade-button:hover{border-color:var(--game-accent);box-shadow:0 0 20px color-mix(in srgb, var(--game-accent) 16%, transparent);transform:translateY(-1px)}.arcade-actions button.primary{color:#15111d;background:var(--game-accent);font-weight:600}.arcade-actions button:disabled{opacity:.4;cursor:var(--cursor-default);box-shadow:none;transform:none}.arcade-help{border:1px solid var(--border-strong);color:var(--text-muted);border-radius:14px;margin:18px 0;padding:14px 18px;font-size:13px;line-height:1.8}.arcade-help summary{cursor:var(--cursor-pointer);color:#ddd}.arcade-footer{color:#888;justify-content:space-between;gap:12px;margin-top:24px;font-size:11px;display:flex}.arcade-footer a{color:var(--game-accent)}@media (max-width:540px){.arcade{padding:18px 12px}.arcade-header{gap:8px}.arcade-header>a{margin-right:0}.arcade-prototype{display:none}.arcade-stats{gap:8px;padding:12px;font-size:11px}.arcade-actions{padding:12px}.arcade-actions button{padding:10px 14px;font-size:12px}.arcade-footer span{display:none}}@media (prefers-reduced-motion:reduce){.arcade *{transition:none!important;animation:none!important}}.prism-board{box-sizing:border-box;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;max-width:560px;margin:0 auto;padding:18px;display:grid}.prism-board button{aspect-ratio:1;color:#91879f;cursor:var(--cursor-pointer);touch-action:manipulation;background:#1b1b20;border:1px solid #ffffff15;border-radius:12px;padding:0;transition:background .16s,color .16s,box-shadow .16s}.prism-board button svg{width:100%;height:100%;display:block}.prism-board button:hover{border-color:var(--game-accent);background:#282331}.prism-board button.is-lit{color:var(--game-accent);filter:drop-shadow(0 0 3px #b49aff30);background:#211d2b}.prism-board button.is-hint{border:2px solid #fff;box-shadow:0 0 24px #b49aff55}.prism-board button:disabled{cursor:var(--cursor-default)}@media (max-width:540px){.prism-board{gap:3px;padding:12px}.prism-board button{border-radius:8px}}.arcade-sound{width:40px;height:40px;color:var(--game-accent);cursor:var(--cursor-pointer);background:#232028;border:1px solid #b49aff35;border-radius:12px;flex-shrink:0;place-items:center;margin-left:auto;display:grid}.arcade-sound[aria-pressed=false]{color:#ddd}.arcade button:focus-visible,.arcade a:focus-visible{outline:2px solid var(--game-accent);outline-offset:3px}.arcade-actions button[aria-pressed=true]{border-color:var(--game-accent);background:color-mix(in srgb, var(--game-accent) 13%, #201b29);color:var(--game-accent)}.orbit-perfect{fill:#d5bcff;filter:drop-shadow(0 0 7px #b49affaa);transform-origin:220px 218px;animation:.45s ease-out orbit-perfect-pop}@keyframes orbit-perfect-pop{0%{transform:scale(1.14)}to{transform:scale(1)}}.orbit-catch-burst{transform-origin:220px 220px;pointer-events:none;animation:.65s ease-out both orbit-catch}@keyframes orbit-catch{0%{opacity:.65;transform:scale(.7)}to{opacity:0;transform:scale(1.65)}}.prism-board button.is-lit path{stroke-dasharray:8 3;animation:1.1s linear infinite prism-flow}@keyframes prism-flow{to{stroke-dashoffset:-22px}}.arcade-progress{background:#ffffff10;border-radius:4px;height:4px;margin:0 18px 16px;overflow:hidden}.arcade-progress span{background:var(--game-accent);height:100%;box-shadow:0 0 10px var(--game-accent);transition:width .25s;display:block}@media (prefers-reduced-motion:reduce){.orbit-catch-burst{display:none}.prism-board button.is-lit path{animation:none}}.prism-board{margin:32px auto 36px}.prism-board button{position:relative}.prism-board button.prism-source{border-color:#d7bcff;box-shadow:inset 3px 0 #d7bcff,0 0 18px #b49aff28}.prism-board button.prism-receiver{border-color:#8de0d1;box-shadow:inset -3px 0 #8de0d1,0 0 18px #8de0d11c}.prism-endpoint-label{letter-spacing:.05em;text-transform:uppercase;pointer-events:none;background:#201d27;border:1px solid;border-radius:7px;align-items:center;gap:5px;width:max-content;padding:4px 7px;font:600 10px/1.2 sans-serif;display:flex;position:absolute}.prism-source .prism-endpoint-label{color:#d7bcff;bottom:calc(100% + 8px);left:0}.prism-receiver .prism-endpoint-label{color:#8de0d1;top:calc(100% + 8px);right:0}.prism-board .prism-endpoint-label svg{flex-shrink:0;width:12px;height:12px}.prism-source .prism-terminal-arrow{color:#e5d4ff}.prism-receiver .prism-terminal-arrow{color:#8de0d1}.prism-board button.prism-receiver.is-powered{background:#163b35;box-shadow:inset -3px 0 #8de0d1,0 0 24px #8de0d155}