:root{color:#f7f8ff;font-synthesis:none;--surface:#15192ec7;--surface-border:#ffffff17;--muted:#929ab7;--accent:#8f7cff;--accent-2:#55dff5;--board-width:min(420px, calc((100dvh - 145px) / 1.8), calc(100vw - 20px));background:#090b16;font-family:Inter,ui-rounded,SF Pro Rounded,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{overscroll-behavior:none;background:#090b16;width:100%;min-width:320px;height:100%;margin:0;overflow:hidden}body{-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-touch-callout:none;position:relative}body:before,body:after{z-index:-1;content:"";filter:blur(90px);opacity:.2;pointer-events:none;border-radius:50%;width:50vmax;height:50vmax;position:fixed}body:before{background:#654bff;top:-28vmax;left:-18vmax}body:after{background:#00b8d4;bottom:-32vmax;right:-24vmax}button{color:inherit;font:inherit}.app{width:min(100%,680px);height:100vh;height:100dvh;padding:max(10px, env(safe-area-inset-top)) 10px max(7px, env(safe-area-inset-bottom));flex-direction:column;align-items:stretch;gap:6px;margin:0 auto;display:flex}.topbar{justify-content:space-between;align-items:center;min-height:44px;display:flex}.brand{align-items:center;gap:10px;display:flex}.brand strong,.brand small{display:block}.brand strong{letter-spacing:.08em;font-size:16px}.brand small{color:var(--muted);letter-spacing:.22em;margin-top:1px;font-size:8px;font-weight:700}.brand-mark{border:1px solid var(--surface-border);background:#ffffff0f;border-radius:9px;grid-template-rows:1fr 1fr;grid-template-columns:1fr 1fr;gap:2px;width:30px;height:30px;padding:5px;display:grid}.brand-mark i{background:linear-gradient(145deg, var(--accent-2), var(--accent));border-radius:2px;box-shadow:0 0 8px #55dff559}.brand-mark i:nth-child(3){grid-column:2}.brand-mark i:nth-child(4){display:none}.top-actions{gap:8px;display:flex}.icon-button{border:1px solid var(--surface-border);background:var(--surface);cursor:pointer;touch-action:manipulation;border-radius:12px;place-items:center;width:38px;height:38px;padding:9px;display:grid}.icon-button svg{fill:currentColor;width:100%;height:100%}.icon-button:disabled{opacity:.38}.icon-button.muted{color:var(--muted)}.game-shell{flex-direction:column;flex:1;align-items:center;gap:5px;min-height:0;display:flex}.game-hud{grid-template-columns:minmax(0,1fr) 78px;gap:6px;width:min(100%,520px);min-height:50px;display:grid}.stats-panel,.next-panel{border:1px solid var(--surface-border);background:var(--surface);border-radius:17px}.stats-panel{grid-template-columns:minmax(58px,1.35fr) repeat(3,minmax(42px,1fr));align-items:center;gap:4px;min-width:0;min-height:50px;padding:5px 9px;display:grid}.stat-score,.stat-row,.stat{align-items:center;display:flex}.stat-score{justify-content:flex-start}.stat-row{display:contents}.stat{white-space:nowrap;justify-content:center;gap:3px;min-width:0}.stat span,.next-panel>span{color:var(--muted);letter-spacing:.12em;font-size:10px;font-weight:700}.stat strong{font-variant-numeric:tabular-nums;letter-spacing:.02em;font-size:13px}.stat-score strong{color:#fff;font-size:19px}.board-wrap{width:var(--board-width);aspect-ratio:5/9;touch-action:none;background:#101428;border:1px solid #ffffff21;border-radius:20px;position:relative;overflow:hidden;box-shadow:0 24px 70px #0000006b,inset 0 1px #ffffff14}#gameCanvas{width:100%;height:100%;display:block}.board-glow{border-radius:inherit;pointer-events:none;position:absolute;top:0;bottom:0;left:0;right:0;box-shadow:inset 0 0 40px #6957ff14}.next-panel{flex-direction:row;justify-content:center;align-items:center;gap:2px;width:78px;min-width:0;min-height:50px;padding:4px 5px;display:flex}.next-panel canvas{width:43px;height:43px;margin:0}.game-overlay{opacity:0;pointer-events:none;visibility:hidden;background:#07091380;place-items:center;padding:16px;transition:opacity .18s,visibility 0s linear .18s;display:grid;position:absolute;top:0;bottom:0;left:0;right:0}.game-overlay.visible{opacity:1;pointer-events:auto;visibility:visible;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);transition-delay:0s}.overlay-card{text-align:center;background:#13172be6;border:1px solid #ffffff21;border-radius:20px;width:min(100%,250px);padding:22px 18px;box-shadow:0 24px 56px #00000059}.eyebrow{color:#8edfff;letter-spacing:.16em;font-size:10px;font-weight:800}.overlay-card h1{margin:8px 0 7px;font-size:max(18px,min(5vw,24px));line-height:1.24}.overlay-card p{color:var(--muted);margin:0 0 16px;font-size:12px;line-height:1.65}.primary-button{color:#0b0d18;cursor:pointer;touch-action:manipulation;background:linear-gradient(135deg,#6ee3f3,#8f78ff 70%);border:0;border-radius:13px;width:100%;min-height:43px;font-size:14px;font-weight:900;box-shadow:0 12px 26px #6868ff40}.keyboard-hint{color:#6f7691;text-align:center;margin:-2px auto 0;font-size:9px}.toast{z-index:20;left:50%;bottom:max(20px, env(safe-area-inset-bottom));border:1px solid var(--surface-border);color:#eef0ff;opacity:0;pointer-events:none;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#121628f0;border-radius:999px;padding:10px 15px;font-size:12px;transition:opacity .16s,transform .16s;position:fixed;transform:translate(-50%,12px)}.toast.visible{opacity:1;transform:translate(-50%)}.line-flash:after{z-index:30;content:"";pointer-events:none;background:#6debff14;animation:.18s ease-out flash;position:fixed;top:0;bottom:0;left:0;right:0}@keyframes flash{0%{opacity:1}to{opacity:0}}@media (min-width:700px){:root{--board-width:min(420px, calc((100dvh - 145px) / 1.8))}.app{justify-content:center}}@media (max-height:690px){:root{--board-width:min(300px, calc((100dvh - 125px) / 1.8), calc(100vw - 20px))}.app{padding-top:max(6px, env(safe-area-inset-top));gap:6px}.stats-panel{min-height:46px;padding:3px 7px}.game-hud{grid-template-columns:minmax(0,1fr) 72px;gap:5px;min-height:46px}.next-panel{width:72px;min-height:46px;padding:3px 4px}.next-panel canvas{width:38px;height:38px}.keyboard-hint{display:none}.overlay-card{padding:15px 12px}.overlay-card p{display:none}}@media (max-width:360px){.game-hud{grid-template-columns:minmax(0,1fr) 68px}.next-panel{width:68px}.stats-panel{grid-template-columns:minmax(52px,1.25fr) repeat(3,minmax(38px,1fr));gap:2px;padding-left:5px;padding-right:5px}.stat{gap:2px}}@media (max-width:699px){.keyboard-hint{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}