:root{color-scheme:light}*{box-sizing:border-box}body,html{margin:0;padding:0;width:100%;height:100%;overflow:hidden;font-family:Trebuchet MS,Segoe UI,Arial,sans-serif;background:#edf5ff;color:#1d2a45}.game-shell{position:relative;width:100vw;height:100vh;overflow:hidden}canvas{width:100%;height:100%;display:block}.hud-card{position:absolute;z-index:10;background:hsla(0,0%,100%,.9);border:1px solid rgba(63,92,138,.2);border-radius:12px;padding:12px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);box-shadow:0 12px 28px rgba(41,69,114,.15);max-width:min(320px,calc(100vw - 20px))}.top-left{top:10px;left:10px}.top-right{top:10px;right:10px}.bottom-left{left:10px;bottom:10px}.bottom-right{right:10px;bottom:10px}.title{margin:0;font-size:20px;line-height:1.2}.subtitle{margin:4px 0 0;font-size:15px;font-weight:700}.desc{margin:6px 0 0;font-size:13px;line-height:1.4;color:#40557f}.meter{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:14px}.meter strong{font-size:18px}.btn{width:100%;border:0;border-radius:8px;padding:10px 12px;cursor:pointer;font-weight:700;color:#fff;background:linear-gradient(180deg,#5d8fff,#4675df)}.btn:hover{filter:brightness(1.05)}.minor-title{margin:0 0 8px;font-size:13px;font-weight:700;color:#415f9b}.voxel-options{display:flex;gap:6px;flex-wrap:wrap}.chip{display:inline-flex;align-items:center;gap:6px;border:2px solid #b8c9ee;background:#fff;border-radius:999px;padding:6px 10px;font-size:12px;cursor:pointer}.chip.active{background:#f3f8ff;box-shadow:0 0 0 2px rgba(70,117,223,.2)}.swatch{width:10px;height:10px;border-radius:50%}.control-list{margin:0;padding-left:16px;font-size:12px;color:#40557f}.status-toast,.win-banner{position:absolute;left:50%;transform:translateX(-50%);z-index:20;border-radius:999px;padding:10px 16px;font-weight:700;box-shadow:0 10px 20px rgba(25,40,72,.2)}.status-toast{top:12px;background:#304a7d;color:#fff}.win-banner{top:56px;background:linear-gradient(180deg,#4dc98d,#34aa73);color:#fff}@media (max-width:960px){.hud-card{max-width:min(280px,calc(100vw - 16px));padding:10px}.title{font-size:18px}.desc,.subtitle{font-size:12px}.meter{font-size:13px}.meter strong{font-size:16px}}