:root{--bg:#07111f;--panel:rgba(255,255,255,.045);--border:rgba(255,255,255,.10);--text:#f4f7fb;--muted:#9baabd;--blue:#4da3ff;--cyan:#39d9ff;--green:#45e6a3;--purple:#9270ff}*{box-sizing:border-box;margin:0;padding:0}html{color-scheme:dark}body{min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:radial-gradient(circle at 50% -10%,rgba(57,217,255,.14),transparent 35%),radial-gradient(circle at 90% 20%,rgba(146,112,255,.07),transparent 28%),var(--bg);line-height:1.5}button,a{font:inherit}button{color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}.app-shell{max-width:1280px;margin:0 auto;padding:0 22px 40px}.topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid rgba(255,255,255,.06)}.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:850}.brand>span:last-child>span{color:var(--cyan)}.brand-mark{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(135deg,var(--cyan),var(--blue),var(--purple));box-shadow:0 8px 30px rgba(57,217,255,.18)}.top-actions{display:flex;align-items:center;gap:9px}.icon-button,.back-link{min-height:40px;border:1px solid var(--border);border-radius:11px;background:rgba(255,255,255,.04)}.icon-button{width:42px;cursor:pointer}.back-link{display:inline-flex;align-items:center;padding:0 14px;color:var(--muted);font-size:13px}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;padding-top:32px}.game-panel,.info-card{border:1px solid var(--border);background:linear-gradient(180deg,rgba(255,255,255,.052),rgba(255,255,255,.025))}.game-panel{padding:26px;border-radius:24px}.title-row{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}.eyebrow{margin-bottom:5px;color:#91f3c7;font-size:11px;font-weight:800;letter-spacing:.9px}h1{font-size:clamp(34px,5vw,55px);line-height:1;letter-spacing:-2px}.subtitle{max-width:600px;margin-top:10px;color:var(--muted);font-size:14px}.scoreboard{display:flex;gap:10px;flex-shrink:0}.score-box{min-width:96px;padding:10px 13px;border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.035);text-align:right}.score-box span{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.6px}.score-box strong{display:block;margin-top:1px;font-size:23px}.game-frame{position:relative;overflow:hidden;width:100%;aspect-ratio:1/1;border:1px solid rgba(57,217,255,.15);border-radius:20px;background:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px),#06101c;background-size:32px 32px;box-shadow:inset 0 0 60px rgba(57,217,255,.03),0 18px 60px rgba(0,0,0,.24)}canvas{display:block;width:100%;height:100%;touch-action:none}.overlay{position:absolute;inset:0;display:grid;place-items:center;padding:25px;background:rgba(3,10,18,.65);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.hidden{display:none!important}.overlay-card{width:min(390px,100%);padding:30px;border:1px solid rgba(255,255,255,.10);border-radius:22px;background:rgba(7,17,31,.92);text-align:center;box-shadow:0 20px 80px rgba(0,0,0,.35)}.overlay-card.compact{max-width:330px}.overlay-icon{font-size:42px;margin-bottom:10px}.overlay-card h2{font-size:29px;letter-spacing:-1px}.overlay-card p{margin-top:8px;color:var(--muted)}.primary-button{width:100%;margin-top:22px;padding:13px 18px;border:0;border-radius:12px;background:linear-gradient(135deg,#6beaff,#4da3ff);color:#03101c;font-weight:850;cursor:pointer;box-shadow:0 10px 35px rgba(77,163,255,.22)}.highscore-message{color:#91f3c7!important;font-weight:800}.side-panel{display:flex;flex-direction:column;gap:15px}.info-card{padding:21px;border-radius:18px}.info-card h2{margin-bottom:8px;font-size:17px}.info-card p{color:var(--muted);font-size:13px}.key-grid{display:grid;grid-template-columns:82px 1fr;gap:7px 12px;margin-top:15px;font-size:12px}.key-grid span:nth-child(odd){padding:4px 7px;border:1px solid var(--border);border-radius:7px;background:rgba(255,255,255,.04);text-align:center;color:white}.key-grid span:nth-child(even){display:flex;align-items:center;color:var(--muted)}.mobile-controls{display:none;grid-template-columns:repeat(3,62px);grid-template-rows:repeat(2,56px);gap:7px;justify-content:center;margin-top:17px}.control-button{border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.055);font-size:20px;cursor:pointer;touch-action:manipulation}.control-button:active{background:rgba(77,163,255,.22);transform:translateY(1px)}.control-button.up{grid-column:2;grid-row:1}.control-button.left{grid-column:1;grid-row:2}.control-button.down{grid-column:2;grid-row:2}.control-button.right{grid-column:3;grid-row:2}.status-row{display:flex;justify-content:space-between;gap:15px;margin-top:14px;color:var(--muted);font-size:11px}#saveStatus{color:#91f3c7}@media(max-width:980px){.game-layout{grid-template-columns:1fr}.side-panel{display:grid;grid-template-columns:repeat(3,1fr)}}@media(max-width:720px){.app-shell{padding-left:12px;padding-right:12px}.topbar{min-height:64px}.brand{font-size:16px}.brand-mark{width:31px;height:31px}.back-link{display:none}.game-panel{padding:15px;border-radius:18px}.title-row{align-items:flex-start;flex-direction:column}.scoreboard{width:100%}.score-box{flex:1;text-align:left}.mobile-controls{display:grid}.side-panel{grid-template-columns:1fr}}