:root{--bg:#0f1220;--panel:#1a1f36;--panel-hi:#262d4f;--accent:#ffcc4d;--text:#f3f4ff;--muted:#9aa0c3;--pad-size:clamp(44px, 7.5vmin, 72px)}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);-webkit-user-select:none;user-select:none;overscroll-behavior:none;touch-action:manipulation;margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:inherit;text-decoration:none}.home{min-height:100%;padding:32px clamp(16px, 5vw, 64px) calc(var(--pad-size) * 3.6 + 32px);flex-direction:column;display:flex}.home h1{letter-spacing:.04em;margin:0 0 8px;font-size:clamp(28px,4vw,44px)}.home .hint{color:var(--muted);margin-bottom:24px}.game-list{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.game-card{background:var(--panel);border:3px solid #0000;border-radius:14px;padding:20px;transition:transform .12s,border-color .12s,background .12s;display:block}.game-card:hover,.game-card.is-selected{border-color:var(--accent);background:var(--panel-hi);transform:translateY(-2px)}.game-card h2{margin:0 0 6px;font-size:20px}.game-card p{color:var(--muted);margin:0;font-size:14px}.game-root{position:fixed;inset:0}canvas.game-canvas{touch-action:none;outline:none;width:100%;height:100%;display:block}.hud{pointer-events:none;text-shadow:0 2px 6px #000000b3;justify-content:space-between;align-items:center;padding:14px 20px;font-size:18px;display:flex;position:fixed;top:0;left:0;right:0}.hud .back-link{pointer-events:auto;color:var(--muted)}.hud .back-link:hover{color:var(--text)}.message{text-align:center;pointer-events:none;text-shadow:0 2px 10px #000c;padding:0 16px;font-size:clamp(22px,4vw,40px);font-weight:700;transition:opacity .2s;position:fixed;top:14%;left:0;right:0}.message.is-hidden{opacity:0}.message small{color:var(--muted);margin-top:8px;font-size:.5em;font-weight:400;display:block}.pad{left:max(16px, env(safe-area-inset-left));bottom:max(16px, env(safe-area-inset-bottom));align-items:flex-end;gap:calc(var(--pad-size) * .45);z-index:50;pointer-events:none;display:flex;position:fixed}.pad-dir{grid-template-columns:repeat(3, var(--pad-size));grid-template-rows:repeat(3, var(--pad-size));grid-template-areas:".up.""left.right"".down.";gap:4px;display:grid}.pad-dir [data-action=up]{grid-area:up}.pad-dir [data-action=left]{grid-area:left}.pad-dir [data-action=right]{grid-area:right}.pad-dir [data-action=down]{grid-area:down}.pad-ab{align-items:flex-end;gap:calc(var(--pad-size) * .2);padding-bottom:calc(var(--pad-size) * .55);display:flex}.pad-btn{pointer-events:auto;width:var(--pad-size);height:var(--pad-size);color:var(--text);font-size:calc(var(--pad-size) * .34);-webkit-backdrop-filter:blur(6px);touch-action:none;-webkit-tap-highlight-color:transparent;cursor:pointer;background:#ffffff24;border:2px solid #ffffff1f;border-radius:14px;font-weight:700;transition:background 80ms,transform 80ms,border-color 80ms}.pad-btn.is-down{background:#ffffff80;border-color:#fff;transform:scale(.94)}.pad-btn.is-blink{animation:.28s ease-out pad-blink}@keyframes pad-blink{0%{box-shadow:0 0 #fffc,0 0 18px 4px #fff9}to{box-shadow:0 0 0 10px #fff0,0 0 #fff0}}.pad-a,.pad-b{width:calc(var(--pad-size) * 1.15);height:calc(var(--pad-size) * 1.15);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;line-height:1;display:flex}.pad-a small,.pad-b small{font-size:calc(var(--pad-size) * .16);opacity:.75;margin-top:2px;font-weight:500}.pad-a{margin-bottom:calc(var(--pad-size) * .5);background:#ffcc4d8c}.pad-b{background:#ff5a5a73}.pad-a.is-down{background:#ffcc4df2}.pad-b.is-down{background:#ff5a5ae6}