@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');
:root{color-scheme:dark;--ink:#e8eff8;--muted:#8390a3;--line:#283243;--cyan:#96edf5;--amber:#edc184}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#080b12;color:var(--ink);font-family:'DM Sans',system-ui,sans-serif}body{background:radial-gradient(circle at 45% -20%,#17253a 0,transparent 42%),#080b12}button{font:inherit;cursor:pointer}button:disabled{cursor:not-allowed}button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}.app-shell{max-width:1510px;margin:auto;padding:0 26px}.topbar{height:75px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #222a37}.brand{display:flex;align-items:center;gap:12px}.brand-mark{position:relative;width:39px;height:39px;display:grid;place-items:center;border:1px solid #567782;transform:rotate(-25deg);color:var(--cyan);font-size:26px;line-height:1}.brand-mark i{position:absolute;width:10px;height:2px;background:#ffbc80;right:-6px;top:18px}.brand>div{display:grid;gap:2px}.brand strong{font:700 17px 'Space Mono',monospace;letter-spacing:.14em}.brand small{font:10px 'Space Mono',monospace;letter-spacing:.22em;color:#738797}.top-actions{display:flex;gap:8px}.icon-button{width:34px;height:34px;border:1px solid var(--line);background:#111925;border-radius:8px;color:#c6d6e5;font:700 17px 'Space Mono'}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 262px;gap:20px;padding-top:24px}.stage-column{min-width:0}.mission-bar{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;padding:0 0 16px}.level-kicker,.side-head,.goal-status,.control-caption,.footer,.board-badge{font-family:'Space Mono',monospace;letter-spacing:.13em}.level-kicker{font-size:11px;color:var(--amber)}h1{font-size:26px;font-weight:600;margin:4px 0 0;letter-spacing:-.035em}.mission-heading p{color:#a6b3c4;margin:3px 0 0;font-size:14px}.goal-status{border:1px solid #465653;border-radius:5px;color:#b0dcc4;padding:9px 11px;white-space:nowrap;font-size:11px}.board-wrap{position:relative;border:1px solid #4b3935;box-shadow:0 0 0 7px #161a22,0 0 0 8px #524038,0 18px 45px #0008;overflow:hidden;background:#090d19;touch-action:none}canvas{display:block;width:100%;height:auto;aspect-ratio:900/580;touch-action:none}.board-badge{position:absolute;bottom:13px;left:16px;color:#96a4b6;font-size:10px;pointer-events:none;text-shadow:0 1px 4px #000}.toast{position:absolute;left:50%;top:22px;transform:translate(-50%,-8px);background:#182635eb;border:1px solid #78d4dc;border-radius:8px;color:#e6fdff;padding:9px 15px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;white-space:nowrap;max-width:90%;overflow:hidden;text-overflow:ellipsis}.toast.show{opacity:1;transform:translate(-50%,0)}.control-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:17px;min-height:48px}.selected-controls,.stage-actions{display:flex;align-items:center;gap:8px}.control-caption{font-size:11px;color:#8ea1b4;margin-right:8px;min-width:100px}.selected-controls button,.text-button{height:38px;padding:0 12px;border:1px solid #354254;border-radius:7px;background:#141c29;color:#d8e5f2;font-size:14px}.selected-controls button:disabled{opacity:.4}.selected-controls button span{font-size:11px;color:#9caebe}.text-button:hover,.selected-controls button:hover{border-color:#8cbec8}.next-button{min-height:38px;border:1px solid #8fd3d9;background:#9ce9ed;color:#101c29;border-radius:7px;padding:0 16px;font-weight:700}.next-button span{margin-left:8px}.next-button:disabled{background:#27333b;border-color:#3a4d50;color:#758588}.sidebar{display:flex;flex-direction:column;gap:14px}.side-card{border:1px solid #263344;background:#101622a8;border-radius:9px;padding:16px}.side-head{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#a3b2c2;margin-bottom:12px}.side-head strong{color:#d2eced;font-size:12px}.level-list{display:grid;gap:5px}.level-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:transparent;border:1px solid transparent;border-radius:6px;padding:8px;color:#a4afbd;font-size:13px}.level-item:hover{background:#1c2837}.level-item.active{background:#1c2c37;border-color:#406372;color:#edf7f9}.level-item .num{width:24px;font:11px 'Space Mono';color:#738e9d}.level-item .check{margin-left:auto;color:#9de7bb}.tool-tray{display:grid;grid-template-columns:1fr 1fr;gap:7px}.tool-button{display:flex;align-items:center;gap:7px;border:1px solid #344153;background:#182231;color:#d4e4ec;border-radius:6px;padding:10px 8px;font-size:12px;text-align:left}.tool-button:hover{border-color:#90d1d8;background:#1d3543}.tool-button .tool-icon{font:21px 'Space Mono';width:23px;text-align:center;color:#aedfe9}.tray-sub{font:11px 'DM Sans';letter-spacing:0;color:#687c90}.tray-note{font-size:12px;line-height:1.5;color:#8d9caf;margin:12px 0 0}.sidebar-foot{display:grid;gap:11px;text-align:center}.sandbox-button{background:transparent;border:1px solid #927e65;color:#f0ca9d;padding:10px;border-radius:6px}.sidebar-foot span{color:#6e7e91;font:10px 'Space Mono';line-height:1.5}.footer{display:flex;align-items:center;justify-content:center;gap:12px;margin:36px 0 24px;color:#66788b;font-size:10px}.footer span{color:#b8d9da}dialog{width:min(480px,calc(100vw - 28px));padding:25px;background:#141e2d;color:#e6f0f8;border:1px solid #537584;border-radius:12px;box-shadow:0 24px 80px #000c}dialog::backdrop{background:#02060bba;backdrop-filter:blur(4px)}dialog p,dialog li{line-height:1.55;color:#b6c5d2;font-size:15px}dialog ul{padding-left:22px}dialog li{margin:7px 0}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head h2{margin:0;font-size:23px}.dialog-head button{font-size:26px;border:0;background:none;color:#c3d3df}dialog .next-button{margin-top:8px}
@media(max-width:1050px){.app-shell{padding:0 18px}.game-layout{grid-template-columns:minmax(0,1fr) 210px;gap:15px}.side-card{padding:12px}.control-caption{min-width:auto}}
@media(max-width:760px){.topbar{height:60px}.app-shell{padding:0 10px}.game-layout{display:flex;flex-direction:column;gap:16px;padding-top:15px}.mission-bar{padding:0 3px 12px}.mission-heading h1{font-size:21px}.mission-heading p{font-size:13px;line-height:1.3}.level-kicker{font-size:10px}.goal-status{font-size:10px;padding:7px}.board-wrap{box-shadow:0 0 0 3px #181c24,0 0 0 4px #554038}.board-badge{font-size:8px;left:8px;bottom:7px}.control-bar{flex-wrap:wrap;margin-top:10px}.selected-controls,.stage-actions{width:100%;justify-content:space-between}.control-caption{font-size:10px}.selected-controls button,.text-button,.next-button{min-height:42px}.stage-actions{padding-top:4px}.sidebar{display:grid;grid-template-columns:1fr 1fr;align-items:start}.sidebar-foot{grid-column:1/-1}.side-card{min-width:0}.level-item{font-size:12px;padding:6px 3px;gap:3px}.tool-tray{grid-template-columns:1fr}.tray-note{display:none}.footer{font-size:8px;margin:18px 0 30px;text-align:center}.brand strong{font-size:14px}.brand small{font-size:8px}}
@media(max-width:390px){.tool-button{padding:7px 4px}.level-item .num{width:17px}.control-caption{min-width:80px}.selected-controls button{padding:0 7px}.selected-controls button span{display:none}}
.inspector{margin-top:14px;border:1px solid #314456;background:#101b28;padding:14px 16px;border-radius:9px;min-height:64px}.inspector-empty{margin:4px 0;color:#91a7ba;font-size:14px;line-height:1.45}.inspector-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.inspector-title strong{font-size:16px;font-weight:600}.inspector-title .text-button{height:32px;color:#dba59d;font-size:13px}.band-controls{border:0;padding:0;margin:0;display:flex;gap:9px;flex-wrap:wrap}.band-controls legend{font-size:13px;color:#94acbf;padding:0 0 8px}.band-option{display:flex;align-items:center;gap:7px;padding:9px 12px;border:1px solid #3c5267;border-radius:6px;background:#172535;font-size:14px;cursor:pointer;min-height:42px}.band-option input{width:17px;height:17px;margin:0;accent-color:#a0edf5}.band-xr{color:#f2f7ff}.band-uv{color:#d384ff}.band-b{color:#89b8ff}.band-g{color:#86efac}.band-r{color:#ff918c}.band-ir{color:#ff6d8d}.power-control{margin-top:13px;display:grid;grid-template-columns:minmax(130px,230px) 1fr;align-items:center;gap:15px}.power-control label,.heat-readout label{font-size:14px;color:#c0d2e2;display:flex;justify-content:space-between;gap:12px}.power-control input{width:100%;accent-color:#9ce9ed;height:26px}.inspector-note{font-size:13px;color:#97afc2;line-height:1.55;margin:11px 0 0}.material-control{font-size:14px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;color:#b7cbdc}.material-control select{font:inherit;font-size:14px;background:#1b2b3e;color:#ebf4ff;border:1px solid #4b657a;border-radius:6px;padding:8px;min-width:150px}.heat-readout{margin-top:12px}.heat-readout meter{width:100%;height:16px;margin-top:6px;accent-color:#ffaa66}dialog a{color:#a3e4ef}.optics-card .tool-tray{grid-template-columns:1fr 1fr}.tool-button{font-size:12px;min-height:42px}.side-card .tray-note{font-size:13px}@media(max-width:760px){.inspector{padding:12px}.band-controls{gap:6px}.band-option{padding:8px 9px;font-size:13px}.power-control{grid-template-columns:1fr;gap:2px}.sidebar{grid-template-columns:1fr}.level-list{grid-template-columns:1fr 1fr}.optics-card .tool-tray{grid-template-columns:repeat(3,1fr)}.inspector-note{font-size:13px}.sidebar-foot{grid-column:auto}}