:root{--bg:#090d0a;--panel:#151d14;--gold:#ffd45d;--line:#3f351f;--txt:#f7f1df;--muted:#b8aa83;--green:#9ee493;--red:#ff6b6b;--safeTop:env(safe-area-inset-top);--safeBottom:env(safe-area-inset-bottom)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font-family:system-ui,-apple-system,Segoe UI,sans-serif;overflow:hidden}button,input,select{font:inherit}button{border:0;border-radius:14px;padding:12px 14px;font-weight:800;color:var(--txt);background:#2a2113;border:1px solid #6e5629}input,select{width:100%;border-radius:12px;border:1px solid #5b4927;background:#080b08;color:var(--txt);padding:12px}label{font-size:12px;color:var(--muted);display:block}
#appShell{height:100%;display:flex;flex-direction:column;max-width:480px;margin:0 auto;background:linear-gradient(#0b0f0c,#070907)}.topbar{height:calc(58px + var(--safeTop));padding:calc(10px + var(--safeTop)) 14px 8px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#11160f}.topbar strong{display:block;color:var(--gold);font-size:18px;line-height:1}.topbar span{font-size:11px;color:var(--muted)}
.ghostBtn,.smallBtn{padding:9px 11px;font-size:12px;border-radius:12px}.primaryBtn{background:linear-gradient(#806122,#4b3510);border-color:#d9ad45;color:white}.dangerBtn{background:#321414;border-color:#8b3838;color:#ffd4d4}.wide{width:100%;margin-top:10px}.view{flex:1;min-height:0;overflow:hidden;position:relative}.screen{position:absolute;inset:0;overflow:auto;padding:12px 12px calc(82px + var(--safeBottom));display:none}.screen.active{display:block}
.heroCard{background:linear-gradient(160deg,#1c291b,#131912);border:1px solid #5a4520;border-radius:22px;padding:18px;margin-bottom:12px;box-shadow:0 14px 30px rgba(0,0,0,.35)}.heroCard h1,.stickyTitle h1{margin:0;color:var(--gold);font-size:24px}.heroCard p,.hint,.muted{color:var(--muted);font-size:13px;line-height:1.35}.quickGrid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}.quickGrid button{min-height:70px;text-align:left}.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:12px;margin-bottom:12px}.panel h2{margin:0 0 8px;color:var(--gold);font-size:15px}.stickyTitle{position:sticky;top:0;z-index:5;background:linear-gradient(var(--bg),rgba(9,13,10,.88));backdrop-filter:blur(10px);padding:6px 0 10px;display:flex;justify-content:space-between;align-items:center}
.searchBox{display:grid;grid-template-columns:1fr 118px;gap:8px;margin-bottom:10px}.statusLine{font-size:12px;color:var(--green);margin:6px 0}.assetList{display:grid;grid-template-columns:1fr;gap:8px}.assetCard{display:grid;grid-template-columns:68px 1fr;gap:10px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:8px;text-align:left}.assetCard.active{outline:2px solid var(--gold)}.assetThumb{width:68px;height:58px;background:#050605;border-radius:12px;border:1px solid #332918;display:flex;align-items:center;justify-content:center;overflow:hidden}.assetThumb canvas{width:100%;height:100%;image-rendering:pixelated}.assetCard b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.assetCard span{display:block;font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.selectedAssetCard{display:grid;grid-template-columns:72px 1fr;gap:10px;background:#121811;border:1px solid var(--line);border-radius:18px;padding:10px;margin-bottom:10px}.selectedThumb{width:72px;height:62px;background:#050605;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid #332918}.selectedThumb canvas{width:100%;height:100%;image-rendering:pixelated}#selectedName{display:block;color:var(--gold)}#selectedMeta{display:block;color:var(--muted);font-size:12px}
.livePreviewCard{display:grid;grid-template-columns:1fr 92px;gap:10px;align-items:center;background:#0d120d;border:1px solid #47391e;border-radius:18px;padding:10px;margin-bottom:10px}.livePreviewCard b{display:block;color:var(--gold);font-size:14px}.livePreviewCard span{display:block;color:var(--muted);font-size:11px}#previewCanvas{width:92px;height:92px;image-rendering:pixelated;background:#050605;border-radius:12px;border:1px solid #332918}
.modeTabs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:10px}.modeTabs button{padding:10px 4px;font-size:12px}.modeTabs button.active{outline:2px solid var(--gold);background:#4b3510}.sheetTools{display:grid;grid-template-columns:86px 1fr;gap:8px;align-items:end}.zoomBar{display:grid;grid-template-columns:42px 1fr 42px;gap:6px}.zoomBar button{padding:9px 0}.sheetStage{height:330px;overflow:auto;border:1px solid #44361e;border-radius:14px;background:#050605;touch-action:none;overscroll-behavior:contain}#sheetCanvas{display:block;image-rendering:pixelated;background:#050605}.selectionInfo{font-size:12px;color:var(--green);margin-top:6px}.row{display:flex;gap:8px;flex-wrap:wrap}.row button{flex:1}.frameSizeBadge{background:#0c110c;border:1px solid #3a2f1a;color:var(--green);font-size:12px;border-radius:12px;padding:9px;margin-bottom:8px}.frameStrip{display:flex;gap:8px;overflow:auto;padding:6px 0;min-height:56px}.frameChip{min-width:58px;height:48px;border:1px solid #5b4927;background:#0a0d09;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--gold);font-weight:800;font-size:12px}.frameChip.active{outline:2px solid var(--green)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}.checkLabel{display:flex;align-items:center;justify-content:space-between;background:#0d120d;border:1px solid #342915;border-radius:12px;padding:10px}.checkLabel input{width:auto}.flags{display:grid;grid-template-columns:1fr;gap:6px;margin-top:8px}.flags label{display:flex;align-items:center;gap:8px;background:#0d120d;border:1px solid #342915;border-radius:12px;padding:10px}.flags input{width:auto}.libraryList{display:grid;gap:8px}.libraryCard{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:10px}.libraryCard b{color:var(--gold);display:block}.libraryCard span{color:var(--muted);font-size:12px;display:block}.filePicker{display:block;background:#2a2113;border:1px solid #6e5629;color:white;border-radius:14px;padding:12px 14px;font-weight:800;text-align:center}.filePicker input{display:none}
.bottomNav{height:calc(68px + var(--safeBottom));padding:6px 8px calc(6px + var(--safeBottom));display:grid;grid-template-columns:repeat(5,1fr);gap:6px;border-top:1px solid var(--line);background:#0f140e}.bottomNav button{padding:7px 2px;border-radius:14px;background:#151b13;border-color:#352a18;font-size:19px}.bottomNav button.active{outline:2px solid var(--gold);background:#2a2113}.bottomNav span{display:block;font-size:10px;font-weight:700;margin-top:2px}@media (min-width:700px){#appShell{max-width:900px}.assetList{grid-template-columns:1fr 1fr}.screen{padding-left:18px;padding-right:18px}.sheetStage{height:460px}.livePreviewCard{grid-template-columns:1fr 120px}#previewCanvas{width:120px;height:120px}}