:root{color:#eef7f3;font-synthesis:none;--page:#081012;--panel:#101a1d;--panel-light:#162429;--line:#e5f5ef24;--muted:#9bb0ab;--mint:#83f1c1;--aqua:#62d7e8;--yellow:#ffd76a;background:#081012;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:var(--page);min-height:100%}body{background:radial-gradient(circle at 20% 0%, #62d7e81f, transparent 35rem), radial-gradient(circle at 100% 70%, #83f1c114, transparent 32rem), var(--page);min-width:320px;min-height:100vh;margin:0}button,a{font:inherit}a{color:inherit}.page{width:min(1080px,100% - 32px);margin:0 auto}.topbar{border-bottom:1px solid var(--line);min-height:72px;color:var(--muted);justify-content:space-between;align-items:center;gap:24px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.82rem;display:flex}.topbar nav{gap:8px;display:flex}.topbar a{text-decoration:none}.topbar a:hover{color:#fff}.brand{color:#eef7f3;align-items:center;gap:10px;font-weight:700;display:inline-flex}.brand-dot{background:var(--mint);border-radius:50%;width:9px;height:9px;box-shadow:0 0 16px #83f1c1b3}main{padding:56px 0 44px}.game-heading{grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);align-items:end;gap:48px;margin-bottom:32px;display:grid}.level-label{color:var(--mint);margin:0 0 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem;font-weight:700}h1{margin:0;font-size:clamp(2.7rem,8vw,5.4rem);font-weight:650;line-height:1}.instructions{color:var(--muted);margin:0;font-size:1.02rem;line-height:1.65}.game-intro{gap:18px;display:grid}.game-tools{align-items:center;gap:10px;display:flex}.level-picker{border:1px solid var(--line);min-height:42px;color:var(--muted);border-radius:11px;align-items:center;gap:10px;padding:0 12px;font-size:.78rem;display:inline-flex}.level-picker select{color:#eef7f3;max-width:150px;font:inherit;background:0 0;border:0;font-weight:700}.level-picker option{color:#eef7f3;background:#101b1e}.compact-button{color:#dce9e5;border-color:var(--line);background:0 0;border-radius:11px;min-height:42px;padding:0 14px}.compact-button:hover{background:#83f1c10d;border-color:#83f1c173}.game-panel{border:1px solid var(--line);background:#101a1deb;border-radius:24px;overflow:hidden;box-shadow:0 32px 90px #00000042}.hud{border-bottom:1px solid var(--line);grid-template-columns:100px 1fr 100px;align-items:center;min-height:68px;padding:0 22px;display:grid}.hud-item{color:var(--muted);align-items:baseline;gap:9px;font-size:.76rem;display:flex}.hud-item strong{color:#fff;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1rem}.hud-item-right{justify-content:flex-end}.status{color:#d5e2de;text-align:center;margin:0;font-size:.9rem}.game-viewport{background:#0b1417;overflow:hidden}.mobile-pan-hint{display:none}#game{aspect-ratio:3/2;background:#0b1417;width:100%;min-height:320px}#game canvas{display:block}.controls{border-top:1px solid var(--line);justify-content:flex-end;align-items:center;gap:10px;min-height:78px;padding:13px 18px;display:flex}button,.dialog-actions a{cursor:pointer;border:1px solid #0000;border-radius:12px;min-height:46px;padding:0 18px;font-weight:700;text-decoration:none}button:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #62d7e88c}.primary-button{color:#071411;background:var(--mint);align-items:center;gap:26px;display:inline-flex}.primary-button:hover{background:#a4f8d3}.primary-button:disabled,.secondary-button:disabled{cursor:wait;opacity:.55}.secondary-button{color:#dce9e5;border-color:var(--line);background:0 0}.secondary-button:hover{background:#ffffff0a;border-color:#e5f5ef4d}.keyboard-help{color:#718681;margin:16px 4px 0;font-size:.8rem}.win-dialog{color:#eef7f3;background:#101b1e;border:1px solid #83f1c159;border-radius:22px;width:min(430px,100% - 32px);padding:32px;box-shadow:0 30px 100px #0000008c}.win-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#020809c7}.win-dialog h2{margin:0 0 12px;font-size:2rem}.win-dialog p:not(.level-label){color:var(--muted);margin:0;line-height:1.6}.win-icon{color:#071411;background:var(--mint);border-radius:15px;place-items:center;width:48px;height:48px;margin-bottom:24px;font-size:1.4rem;font-weight:900;display:grid}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:28px;display:flex}.dialog-actions a{color:#dce9e5;border-color:var(--line);align-items:center;display:inline-flex}.dialog-actions button{color:#071411;background:var(--mint)}.dialog-actions .dialog-secondary{color:#dce9e5;border-color:var(--line);background:0 0}.editor-dialog{color:#eef7f3;background:#0e181b;border:1px solid #83f1c147;border-radius:22px;width:min(980px,100% - 28px);max-height:min(900px,100vh - 28px);padding:0;overflow:auto;box-shadow:0 30px 100px #0000009e}.editor-dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#020809d6}.editor-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:24px;padding:24px 26px;display:flex}.editor-header h2{margin:0;font-size:1.8rem}.editor-header .level-label{margin-bottom:5px}.icon-button{width:42px;min-height:42px;color:var(--muted);border-color:var(--line);background:0 0;border-radius:50%;padding:0;font-size:1.45rem}.icon-button:hover{color:#fff;background:#ffffff0d}.editor-body{grid-template-columns:245px minmax(0,1fr);gap:28px;padding:26px;display:grid}.editor-sidebar{align-content:start;gap:23px;display:grid}.editor-title-label{color:var(--muted);gap:8px;font-size:.78rem;display:grid}.editor-title-label input{border:1px solid var(--line);color:#eef7f3;width:100%;height:43px;font:inherit;background:#111f22;border-radius:10px;padding:0 12px}.editor-title-label input:focus{border-color:#62d7e89e;outline:0}.editor-section-label{color:var(--muted);margin:0 0 10px;font-size:.78rem}.grid-size-controls{grid-template-columns:1fr 1fr;gap:8px;display:grid}.grid-size-controls label{color:var(--muted);gap:7px;font-size:.72rem;display:grid}.grid-size-controls select{border:1px solid var(--line);color:#eef7f3;height:40px;font:inherit;background:#111f22;border-radius:9px;padding:0 9px}.channel-palette{grid-template-columns:repeat(3,1fr);gap:7px;display:grid}.channel-button{border-color:var(--line);min-height:38px;color:var(--channel-color);background:#101d20;border-radius:9px;padding:0}.channel-button:before{width:12px;height:12px;box-shadow:0 0 12px color-mix(in srgb, currentColor 55%, transparent);content:"";background:currentColor;border-radius:50%;display:inline-block}.channel-button.selected{border-color:var(--channel-color);background:color-mix(in srgb, var(--channel-color) 16%, #101d20)}.tile-palette{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;display:grid}.palette-button{color:#cad9d5;border-color:var(--line);text-align:left;background:#101d20;border-radius:9px;align-items:center;gap:8px;min-height:42px;padding:0 10px;font-size:.73rem;font-weight:650;display:flex}.palette-button:hover{border-color:#62d7e866}.palette-button.selected{color:#071411;border-color:var(--mint);background:var(--mint)}.palette-symbol{text-align:center;flex:0 0 20px;width:20px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1rem}.fixed-toggle{color:#cad9d5;align-items:center;gap:9px;font-size:.82rem;display:flex}.fixed-toggle input{width:17px;height:17px;accent-color:var(--mint)}.editor-tip{color:#78908a;margin:0;font-size:.78rem;line-height:1.55}.editor-workspace{min-width:0}.editor-grid{grid-template-columns:repeat(var(--editor-columns,6), 1fr);border:1px solid var(--line);background-color:#0a1417;background-image:linear-gradient(#62d7e80a 1px,#0000 1px),linear-gradient(90deg,#62d7e80a 1px,#0000 1px),none;background-position:0 0,0 0,0 0;background-repeat:repeat,repeat,repeat;background-size:24px 24px;background-attachment:scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box;border-radius:16px;gap:7px;padding:12px;display:grid}.editor-cell{aspect-ratio:1;min-height:0;color:var(--aqua);background:#122024d1;border:1px solid #e5f5ef1c;border-radius:11px;padding:0;position:relative;overflow:hidden}.editor-cell:hover{background:#14252a;border-color:#62d7e880}.editor-cell svg{width:100%;height:100%;display:block}.cell-lock{color:var(--yellow);font-size:.65rem;position:absolute;top:5px;right:6px}.editor-status{min-height:20px;color:var(--muted);margin:12px 2px 0;font-size:.8rem}.editor-status.error{color:#ff9c87}.level-data{border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);margin:0 26px;padding:14px 0;font-size:.8rem}.level-data summary{cursor:pointer}.level-data textarea{resize:vertical;border:1px solid var(--line);color:#b9d8d0;background:#071113;border-radius:9px;width:100%;margin-top:12px;padding:10px;font:.72rem/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.data-actions{justify-content:flex-end;gap:8px;margin-top:8px;display:flex}.data-actions button{min-height:38px}.editor-actions{align-items:center;gap:9px;padding:18px 26px 24px;display:flex}.editor-action-spacer{flex:1}@media (width<=700px){.page{width:min(100% - 20px,1080px)}.topbar{min-height:62px}.topbar nav{display:none}main{padding-top:36px}.game-heading{grid-template-columns:1fr;gap:16px;margin-bottom:22px}.instructions{font-size:.94rem}.game-tools{justify-content:space-between}.level-picker{flex:1;justify-content:space-between}.game-panel{border-radius:18px}.hud{grid-template-columns:70px 1fr 70px;min-height:60px;padding:0 14px}.hud-item{gap:1px;display:grid}.hud-item-right{justify-items:end}.status{font-size:.75rem}#game{width:600px;min-width:600px;min-height:0}.game-viewport{overscroll-behavior-x:contain;scrollbar-color:#83f1c159 transparent;overflow-x:auto}.mobile-pan-hint{border-bottom:1px solid var(--line);color:#78908a;background:#0b1417;margin:0;padding:9px 14px;font-size:.72rem;display:block}.controls{min-height:70px}.primary-button{flex:1;justify-content:space-between}.dialog-actions{grid-template-columns:1fr 1fr;display:grid}.dialog-actions a,.dialog-actions button{justify-content:center}.dialog-actions #next-level{grid-column:1/-1}.editor-dialog{border-radius:16px;width:calc(100% - 14px);max-height:calc(100vh - 14px)}.editor-header{padding:18px}.editor-body{grid-template-columns:1fr;gap:20px;padding:18px}.editor-sidebar{gap:16px}.tile-palette{grid-template-columns:repeat(3,minmax(0,1fr))}.palette-button{justify-content:center;padding:0 6px}.palette-symbol{display:none}.editor-grid{gap:4px;padding:7px}.editor-cell{border-radius:7px}.level-data{margin:0 18px}.editor-actions{flex-wrap:wrap;padding:16px 18px 20px}.editor-action-spacer{display:none}.editor-actions button{flex:calc(50% - 9px)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}