*{box-sizing:border-box}:root{--bg:#0c0f14;--panel:#161b24;--panel-2:#1f2632;--border:#2c3444;--text:#e8ecf4;--text-dim:#97a2b6;--accent:#5ee08a;--accent-2:#4a9df0;--warn:#ff6b6b;--gold:#ffcf6b;--menu-bg:radial-gradient(circle at 50% 0%, #1b2433 0%, #0c0f14 70%);--title-grad-from:#fff;--title-grad-to:#9fe8b8;--seg-active-text:#06210f;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font:16px/1.4 Segoe UI,Microsoft JhengHei,system-ui,Roboto,sans-serif}:root[data-theme=light]{--bg:#eef1f6;--panel:#fff;--panel-2:#e7ebf2;--border:#ccd4e0;--text:#1b2330;--text-dim:#5b6678;--accent:#1f9e55;--accent-2:#2b6fd0;--warn:#d8453a;--gold:#a87b12;--menu-bg:radial-gradient(circle at 50% 0%, #fff 0%, #dde5ef 70%);--title-grad-from:#1b2330;--title-grad-to:#1f9e55;--seg-active-text:#fff;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html,body{background:var(--bg);overscroll-behavior:none;touch-action:none;width:100%;height:100%;margin:0;padding:0}#root{width:100%;height:100dvh;min-height:100svh;position:relative;overflow:hidden}button{cursor:pointer;font-family:inherit}.btn{appearance:none;border:1px solid var(--border);background:var(--panel-2);color:var(--text);letter-spacing:.3px;touch-action:manipulation;border-radius:10px;padding:12px 20px;font-size:16px;font-weight:600;transition:transform 80ms,background .15s,border-color .15s}.btn:hover{border-color:var(--accent-2);filter:brightness(1.08)}.btn:active{transform:scale(.96)}.btn-primary{color:#06210f;background:linear-gradient(#6be89b,#3fb96e);border-color:#2e9457}.btn-primary:hover{background:linear-gradient(#79f0a7,#46c878)}.btn-danger{color:#2a0500;background:linear-gradient(#ff8a7a,#e0483a);border-color:#b93a2e}.btn-block{width:100%}.scrim{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:40;background:#080a0eb8;justify-content:center;align-items:center;padding:20px;display:flex;position:absolute;inset:0;overflow-y:auto}.panel{background:var(--panel);border:1px solid var(--border);border-radius:16px;width:100%;max-width:420px;max-height:90vh;padding:24px;overflow-y:auto;box-shadow:0 20px 60px #00000080}.panel h2{margin:0 0 4px;font-size:22px}.panel .subtitle{color:var(--text-dim);margin-bottom:18px;font-size:13px}.app-root{width:100%;height:100%;position:relative}.menu-screen{background:var(--menu-bg);flex-direction:column;justify-content:center;align-items:center;gap:28px;width:100%;height:100%;padding:24px;display:flex;overflow-y:auto}.menu-header{text-align:center}.title{letter-spacing:6px;background:linear-gradient(180deg, var(--title-grad-from), var(--title-grad-to));color:#0000;-webkit-background-clip:text;background-clip:text;margin:0;font-size:clamp(28px,7vw,44px)}.tagline{color:var(--text-dim);margin:8px 0 0;font-size:14px}.menu-modes{flex-direction:column;gap:14px;width:100%;max-width:420px;display:flex}.mode-card{text-align:left;background:var(--panel);border:1px solid var(--border);color:var(--text);cursor:pointer;border-radius:14px;padding:16px 18px;transition:transform .1s,border-color .15s,background .15s}.mode-card:hover{border-color:var(--accent);background:var(--panel-2)}.mode-card:active{transform:scale(.98)}.mode-title{margin-bottom:4px;font-size:19px;font-weight:700}.mode-desc{color:var(--text-dim);font-size:13px}.mode-record{color:var(--accent);margin-top:8px;font-size:12px}.menu-footer{gap:12px;display:flex}.game-screen{background:#05070a;width:100%;height:100%;position:relative}.game-canvas-container{touch-action:none;width:100%;height:100%;position:relative}.game-canvas{touch-action:none;display:block}.touch-controls{pointer-events:none;justify-content:space-between;padding:0 24px;display:flex;position:absolute;bottom:24px;left:0;right:0}.touch-btn{pointer-events:all;color:#fff;-webkit-user-select:none;user-select:none;background:#1418208c;border:1px solid #ffffff40;border-radius:50%;justify-content:center;align-items:center;width:68px;height:68px;font-size:24px;display:flex}.hud{padding:max(10px, env(safe-area-inset-top)) 12px 0;pointer-events:none;z-index:10;flex-direction:column;gap:6px;display:flex;position:absolute;top:0;left:0;right:0}.hud-top{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:all;background:#0c0f148c;border:1px solid #ffffff14;border-radius:12px;align-items:center;gap:8px;padding:8px 10px;display:flex}.hud-stat{flex-direction:column;flex:1;min-width:0;display:flex}.hud-label{text-transform:uppercase;letter-spacing:.6px;color:var(--text-dim);font-size:10px}.hud-value{white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:700;overflow:hidden}.hud-pause{flex:none;padding:6px 10px;font-size:16px}.hud-stage-row{pointer-events:all;background:#0c0f1480;border-radius:8px;align-items:center;gap:8px;padding:4px 10px;display:flex}.hud-stage-label{color:var(--text-dim);white-space:nowrap;font-size:11px}.stage-progress{background:#ffffff1a;border-radius:4px;flex:1;height:6px;overflow:hidden}.stage-progress-fill{background:linear-gradient(90deg, var(--accent-2), var(--accent));height:100%}.boss-bar-wrap{pointer-events:all;align-self:center;width:min(360px,90%)}.boss-name{text-align:center;letter-spacing:.5px;color:var(--warn);text-shadow:0 1px 4px #0009;font-size:12px;font-weight:700}.boss-bar{background:#00000080;border:1px solid #ffffff26;border-radius:6px;height:12px;overflow:hidden}.boss-bar-fill{background:linear-gradient(90deg, #ff8a7a, var(--warn));height:100%;transition:width .15s}.shield-indicator{background:#4a9df040;border:1px solid #4a9df099;border-radius:20px;align-self:center;padding:3px 12px;font-size:12px}.toast-stack{flex-direction:column;align-self:center;align-items:center;gap:4px;margin-top:4px;display:flex}.toast{background:#141820bf;border:1px solid #ffffff1f;border-radius:20px;padding:4px 12px;font-size:12px;font-weight:600;animation:.2s toast-in}.toast-merge{color:#a5f5c0;border-color:#5ee08a99}.toast-gate{color:#b9dcff;border-color:#4a9df099}.toast-warning{color:#ffb3b3;border-color:#ff6b6b99}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.menu-stack{flex-direction:column;gap:10px;display:flex}.menu-row{gap:10px;display:flex}.menu-row .btn{flex:1}.upgrade-panel{max-width:520px}.upgrade-choices{flex-direction:column;gap:10px;display:flex}.upgrade-card{text-align:left;background:var(--panel-2);border:1px solid var(--border);color:var(--text);cursor:pointer;border-radius:12px;align-items:center;gap:12px;padding:12px 14px;display:flex}.upgrade-card:hover{border-color:var(--accent)}.upgrade-icon{text-align:center;flex:none;width:40px;font-size:26px}.upgrade-name{margin-bottom:2px;font-size:14px;font-weight:700}.upgrade-desc{color:var(--text-dim);font-size:12px;line-height:1.4}.stats-grid{grid-template-columns:1fr 1fr;gap:10px;margin:16px 0;display:grid}.stat-cell{background:var(--panel-2);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:2px;padding:10px 12px;display:flex}.stat-cell span{color:var(--text-dim);text-transform:uppercase;font-size:11px}.stat-cell b{font-size:18px}.slider-row{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:13px;display:flex}.slider-row input[type=range]{flex:1;max-width:55%}.control-scheme-row{justify-content:space-between;align-items:center;margin-top:8px;display:flex}.segmented{border:1px solid var(--border);border-radius:8px;display:flex;overflow:hidden}.seg{background:var(--panel-2);color:var(--text-dim);border:none;padding:6px 14px;font-size:13px}.seg.active{background:var(--accent);color:var(--seg-active-text);font-weight:700}