:root{--bg-1:#0a0e1f;--bg-2:#141a35;--panel:#10142ab8;--panel-border:#ffffff17;--text:#eef1ff;--muted:#eef1ff9e;--accent:#4f8cff;--accent-2:#7c5cff;--prime:#ff5f8f}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{color:var(--text);background:radial-gradient(1200px 800px at 20% 10%, #546cff2e, transparent 60%), radial-gradient(1000px 700px at 85% 90%, #7c5cff29, transparent 60%), linear-gradient(160deg, var(--bg-1), var(--bg-2));-webkit-user-select:none;user-select:none;touch-action:none;font-family:Segoe UI,system-ui,-apple-system,Helvetica Neue,Arial,sans-serif}#scene{touch-action:none;width:100%;height:100%;display:block;position:fixed;inset:0}.hud{z-index:10;pointer-events:none;justify-content:space-between;align-items:center;gap:12px;padding:14px 20px;display:flex;position:fixed;left:0;right:0}.hud-top{top:0}.hud-bottom{justify-content:center;bottom:0}.hud>*{pointer-events:auto}.brand{align-items:center;gap:12px;display:flex}.brand-icon{background:linear-gradient(90deg,#b71234 0 33.33%,#009b48 33.33% 66.66%,#0046ad 66.66% 100%);border:1px solid #ffffff1f;border-radius:9px;width:38px;height:38px;box-shadow:0 4px 14px #00000073}.brand-text h1{letter-spacing:.2px;font-size:17px;font-weight:700}.brand-text span{color:var(--muted);font-size:12px}.stats{gap:10px;display:flex}.stat{background:var(--panel);border:1px solid var(--panel-border);-webkit-backdrop-filter:blur(12px);border-radius:12px;flex-direction:column;align-items:center;min-width:86px;padding:8px 16px;display:flex}.stat-label{text-transform:uppercase;letter-spacing:1.2px;color:var(--muted);font-size:10px}.stat-value{font-variant-numeric:tabular-nums;margin-top:2px;font-size:22px;font-weight:700}.actions{gap:8px;display:flex}.btn{color:var(--text);background:var(--panel);border:1px solid var(--panel-border);-webkit-backdrop-filter:blur(12px);cursor:pointer;border-radius:10px;padding:10px 16px;font-family:inherit;font-size:13px;font-weight:600;transition:transform .12s,background .2s,box-shadow .2s}.btn:hover{background:#ffffff1f;transform:translateY(-1px)}.btn:active{transform:translateY(0)scale(.97)}.btn:disabled{opacity:.45;cursor:default;transform:none}.btn-primary{background:linear-gradient(135deg, var(--accent), var(--accent-2));border:none;box-shadow:0 4px 18px #4f8cff59}.btn-primary:hover{background:linear-gradient(135deg,#6399ff,#8d70ff)}.btn-icon{border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;padding:0;font-size:16px;font-weight:700;display:flex}.hud-bottom{padding-bottom:18px}.move-grid{background:var(--panel);border:1px solid var(--panel-border);-webkit-backdrop-filter:blur(12px);border-radius:14px;flex-wrap:wrap;justify-content:center;gap:6px;max-width:480px;padding:8px;display:flex}.move-btn{width:38px;height:34px;color:var(--text);cursor:pointer;background:#ffffff12;border:1px solid #ffffff14;border-radius:8px;font-family:inherit;font-size:13px;font-weight:700;transition:background .15s,transform .1s}.move-btn:hover{background:#ffffff29}.move-btn:active{transform:scale(.92)}.move-btn-prime{color:var(--prime)}.banner{z-index:20;pointer-events:none;opacity:0;justify-content:center;align-items:center;transition:opacity .4s;display:flex;position:fixed;inset:0}.banner.show{opacity:1}.banner-card{background:var(--panel);-webkit-backdrop-filter:blur(16px);text-align:center;border:1px solid #ffffff24;border-radius:20px;padding:30px 46px;transition:transform .35s cubic-bezier(.34,1.56,.64,1);transform:scale(.85);box-shadow:0 20px 60px #00000080}.banner.show .banner-card{transform:scale(1)}.banner-title{background:linear-gradient(135deg,#7dffa1,#4f8cff);color:#0000;-webkit-background-clip:text;background-clip:text;margin-bottom:6px;font-size:34px;font-weight:800}.banner-sub{color:var(--muted);font-size:15px}.banner-sub strong{color:var(--text)}.help-panel{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:30;opacity:0;pointer-events:none;background:#05081499;justify-content:center;align-items:center;transition:opacity .25s;display:flex;position:fixed;inset:0}.help-panel.open{opacity:1;pointer-events:auto}.help-card{border:1px solid var(--panel-border);background:linear-gradient(#171d3a,#10142c);border-radius:18px;width:min(560px,100vw - 40px);max-height:calc(100vh - 60px);padding:30px 32px;transition:transform .25s;position:relative;overflow:auto;transform:translateY(14px);box-shadow:0 24px 70px #0000008c}.help-panel.open .help-card{transform:translateY(0)}.help-card h2{margin-bottom:12px;font-size:22px}.help-card h3{color:var(--accent);margin:18px 0 8px;font-size:15px}.help-card p{color:var(--muted);margin-bottom:8px;font-size:14px;line-height:1.6}.help-card p strong{color:var(--text)}.help-close{color:var(--text);cursor:pointer;background:#ffffff14;border:none;border-radius:50%;width:34px;height:34px;font-size:18px;position:absolute;top:14px;right:16px}.keys{color:var(--muted);flex-direction:column;gap:8px;font-size:13px;display:flex}kbd{color:var(--text);background:#ffffff1a;border:1px solid #ffffff24;border-bottom-width:2px;border-radius:5px;margin:0 2px;padding:1px 7px;font-family:inherit;font-size:12px;display:inline-block}.hint{border-top:1px solid #ffffff14;margin-top:14px;padding-top:12px}@media (width<=720px){.hud-top{flex-wrap:wrap}.brand-text span{display:none}.stats{order:3;justify-content:center;width:100%}.actions{margin-left:auto}.stat{min-width:74px;padding:6px 12px}.stat-value{font-size:18px}}