:root{color-scheme:dark;--color-black-950: #03080b;--color-black-900: #050a0d;--color-slate-900: #0d1417;--color-slate-850: #0f1619;--color-slate-800: #12181b;--color-slate-700: #21262a;--color-slate-600: #3c3c47;--color-text-primary: #f5f7fa;--color-text-secondary: #a9b2bd;--color-text-muted: #6f7a86;--color-purple-600: #6d35d8;--color-purple-500: #7c3aed;--color-purple-400: #a78bfa;--color-teal-400: #38d8ce;--color-green-500: #22c55e;--color-amber-500: #f5b642;--color-red-500: #ef4444;--bg-app: var(--color-black-950);--bg-surface: var(--color-slate-900);--bg-surface-raised: var(--color-slate-850);--bg-surface-hover: var(--color-slate-700);--bg-canvas: #f0edec;--border-subtle: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .16);--font-sans: Inter, "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", system-ui, sans-serif;font-family:var(--font-sans);font-size:16px;line-height:1.5;font-weight:400;color:var(--color-text-primary);background:var(--bg-app)}*{box-sizing:border-box}body{min-width:320px;min-height:100dvh;margin:0;overflow:hidden}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.52}button:focus-visible,[role=button]:focus-visible,input:focus-visible{outline:2px solid rgba(245,247,250,.92);outline-offset:3px}.app-shell{display:grid;grid-template-columns:320px minmax(0,1fr);min-height:100dvh;background:radial-gradient(circle at 18% 8%,rgba(56,216,206,.1),transparent 28%),linear-gradient(180deg,#050a0d,#03080b)}.sidebar{display:flex;flex-direction:column;gap:16px;min-height:0;padding:20px;border-right:1px solid var(--border-subtle);background:#080d11eb}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border:1px solid rgba(167,139,250,.35);border-radius:8px;color:var(--color-purple-400);background:#7c3aed24}.brand h1,.topbar h2{margin:0;letter-spacing:0}.brand h1{font-size:22px;line-height:1.15}.brand p,.topbar p{margin:2px 0 0;color:var(--color-text-muted);font-size:12px}.upload-button,.primary-button,.secondary-button,.ghost-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;gap:8px;border-radius:8px;border:1px solid transparent;color:var(--color-text-primary);font-weight:700}.upload-button,.primary-button{background:linear-gradient(180deg,#8b5cf6 0%,var(--color-purple-600) 100%);box-shadow:0 12px 28px #7c3aed3d}.secondary-button{border-color:var(--border-strong);background:#ffffff0f}.ghost-button{border-color:var(--border-subtle);background:transparent;color:var(--color-text-secondary)}.full-width{width:100%}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.metric,.panel,.notice{border:1px solid var(--border-subtle);border-radius:8px;background:#0d1417db}.metric{padding:12px}.metric span,.eyebrow,.mask-row small,.image-row small{color:var(--color-text-muted);font-size:12px}.metric strong{display:block;margin-top:4px;font-size:24px;line-height:1.1}.panel{padding:14px}.queue-panel{min-height:0;flex:1}.project-panel{flex:none}.project-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.project-actions button{min-height:40px;font-size:13px}.panel-title{display:flex;align-items:center;gap:8px;margin-bottom:12px;color:var(--color-text-secondary);font-size:13px;font-weight:800}.image-list{display:flex;flex-direction:column;gap:8px;min-height:0;max-height:calc(100dvh - 280px);overflow:auto}.image-row{display:grid;grid-template-columns:42px minmax(0,1fr) 28px;align-items:center;width:100%;min-height:54px;gap:10px;padding:6px;border:1px solid transparent;border-radius:8px;color:inherit;text-align:left;background:transparent}.image-row.selected{border-color:#a78bfa61;background:#7c3aed24}.image-row img{width:42px;height:42px;border-radius:6px;object-fit:cover;background:var(--bg-canvas)}.image-row strong,.mask-row strong{display:block;overflow:hidden;color:var(--color-text-primary);font-size:13px;text-overflow:ellipsis;white-space:nowrap}.row-action-button{display:grid;place-items:center;justify-self:center;width:32px;height:32px;border:1px solid var(--border-subtle);border-radius:8px;color:var(--color-text-muted);background:#ffffff0a}.workspace{display:flex;min-width:0;min-height:100dvh;flex-direction:column}.topbar,.statusbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;border-bottom:1px solid var(--border-subtle)}.topbar h2{max-width:62vw;overflow:hidden;font-size:22px;text-overflow:ellipsis;white-space:nowrap}.topbar-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}.editor-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;min-height:0;flex:1;padding:18px}.canvas-stage{display:grid;place-items:center;min-width:0;min-height:0;border:1px solid var(--border-subtle);border-radius:8px;background:linear-gradient(45deg,rgba(255,255,255,.035) 25%,transparent 25%),linear-gradient(-45deg,rgba(255,255,255,.035) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(255,255,255,.035) 75%),linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.035) 75%),#080d11;background-size:24px 24px;background-position:0 0,0 12px,12px -12px,-12px 0;overflow:hidden}.canvas-stage canvas{display:block;max-width:100%;max-height:calc(100dvh - 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