*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#000;--text:#fff;--header-bg:#f5f5f5;--header-border:#ccc;--header-text:#222;--accent:#4a90d9;--overlay-bg:rgba(0,0,0,0.7)}
[data-theme="dark"]{--bg:#050510;--header-bg:#16213e;--header-border:#0f3460;--header-text:#e0e0e0;--overlay-bg:rgba(0,0,0,0.8)}
html,body{height:100%;font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);-webkit-user-select:none;user-select:none}
body{display:flex;justify-content:center}
.app{width:100%;max-width:820px;display:flex;flex-direction:column;align-items:center}
.app-header{width:100%;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--header-bg);border-bottom:1px solid var(--header-border);color:var(--header-text)}
.app-title{font-size:1.15rem;font-weight:700}
.icon-btn{background:none;border:none;cursor:pointer;color:var(--header-text);padding:6px;border-radius:8px;display:flex;align-items:center;justify-content:center;width:36px;height:36px}
.icon-btn:hover{background:rgba(128,128,128,0.15)}
.icon-btn svg{width:20px;height:20px}
[data-theme="light"] .icon-moon{display:none}[data-theme="dark"] .icon-sun{display:none}[data-theme="dark"] .icon-moon{display:block}
.game-container{padding:8px;display:flex;flex-direction:column;align-items:center;gap:6px;width:100%}
.info-bar{display:flex;gap:16px;font-size:.8rem}
.info-bar b{font-weight:700;color:var(--accent)}
.canvas-wrap{position:relative;border-radius:4px;overflow:hidden;line-height:0;width:100%;max-width:780px;margin:0 auto}
canvas{display:block;background:#000;width:100%;image-rendering:pixelated;image-rendering:crisp-edges}
.overlay{position:absolute;inset:0;background:var(--overlay-bg);display:flex;align-items:center;justify-content:center}
.overlay.hidden{display:none}
.overlay-text{color:#fff;font-size:1.1rem;font-weight:700;text-align:center;line-height:1.8;white-space:pre-line}
.touch-controls{display:none;gap:12px;justify-content:space-between;align-items:center;width:100%;padding:8px 16px}
.dpad{display:flex;flex-direction:column;align-items:center;gap:4px}
.dpad-row{display:flex;gap:4px}
.touch-btn{width:52px;height:48px;border:1px solid rgba(255,255,255,0.2);border-radius:10px;background:rgba(255,255,255,0.08);color:#fff;font-size:1.1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;-webkit-tap-highlight-color:transparent}
.touch-btn:active{background:rgba(255,255,255,0.25)}
.touch-btn.jump{width:80px;height:80px;border-radius:50%;font-size:.75rem;font-weight:700;letter-spacing:1px}
@media(hover:none)and(pointer:coarse){.touch-controls{display:flex}}