:root{--bg-primary: #F0F4F8;--bg-secondary: #FFFFFF;--bg-sidebar: #FFFFFF;--bg-card: #FFFFFF;--bg-input: #FFFFFF;--bg-hover: #F1F5F9;--text-primary: #1E293B;--text-secondary: #475569;--text-muted: #94A3B8;--text-accent: #4338CA;--border-color: #E2E8F0;--border-focus: #6366F1;--accent-primary: #6366F1;--accent-secondary: #8B5CF6;--accent-gradient: linear-gradient(135deg, #6366F1, #8B5CF6);--accent-gradient-hover: linear-gradient(135deg, #818CF8, #A78BFA);--success: #059669;--warning: #D97706;--danger: #DC2626;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 25px rgba(0, 0, 0, .12);--shadow-xl: 0 12px 40px rgba(0, 0, 0, .15);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--bg-primary: #0F172A;--bg-secondary: #1E293B;--bg-sidebar: #1E293B;--bg-card: #1E293B;--bg-input: #1E293B;--bg-hover: #334155;--text-primary: #F1F5F9;--text-secondary: #CBD5E1;--text-muted: #64748B;--text-accent: #A5B4FC;--border-color: #334155;--border-focus: #6366F1;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 25px rgba(0, 0, 0, .5);--shadow-xl: 0 12px 40px rgba(0, 0, 0, .6)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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var(--border-color);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-secondary);font-size:12px;font-weight:600;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tab-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-1px)}.tab-btn.active{background:var(--accent-gradient);color:#fff;border-color:var(--accent-primary);box-shadow:0 2px 8px #6366f14d}.section-label{font-size:13px;font-weight:700;color:var(--text-accent);padding:2px 0}.hint-label{font-size:11px;color:var(--text-muted);font-style:italic}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-weight:600;font-size:13px;cursor:pointer;transition:all var(--transition-fast);font-family:inherit;white-space:nowrap}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 8px #6366f14d}.btn-primary:hover{background:var(--accent-gradient-hover);box-shadow:0 4px 16px #6366f166;transform:translateY(-1px)}.btn-success{background:linear-gradient(135deg,#059669,#047857);color:#fff}.btn-success:hover{background:linear-gradient(135deg,#10b981,#059669)}.btn-danger{background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff}.btn-danger:hover{background:linear-gradient(135deg,#ef4444,#dc2626)}.btn-outline{background:transparent;border:1.5px solid var(--border-color);color:var(--text-secondary)}.btn-outline:hover{border-color:var(--accent-primary);color:var(--accent-primary);background:#6366f10d}.btn-browse{background:linear-gradient(135deg,#d97706,#b45309);color:#fff;padding:10px 14px;min-width:40px}.btn-browse:hover{background:linear-gradient(135deg,#f59e0b,#d97706)}.btn-generate{width:100%;padding:14px 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#6366f11a}.input::placeholder,.textarea::placeholder{color:var(--text-muted)}.textarea{resize:vertical;min-height:100px;max-height:150px}.select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%236366F1' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}.select-sm{padding:3px 22px 3px 6px;font-size:10px;font-weight:600;border-radius:4px;border-width:1px;background-position:right 4px center;background-size:8px;min-height:unset;height:22px}.select-blue{background-color:#eef2ff;color:#4338ca;border-color:#c7d2fe}.select-blue:hover{border-color:#6366f1}.select-blue:focus{border-color:#6366f1;box-shadow:0 0 0 2px #6366f126}.select-green{background-color:#f0fdf4;color:#15803d;border-color:#bbf7d0;background-image:url("data:image/svg+xml,%3Csvg 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var(--transition-normal);position:relative}.image-card:hover{border-color:#a5b4fc;box-shadow:var(--shadow-md);transform:translateY(-2px)}.image-card.selected{border-color:var(--accent-primary);box-shadow:0 0 0 2px #6366f14d}.image-card.processing{border-color:var(--warning)}.image-card.error{border-color:var(--danger)}.image-card.success{border-color:var(--success)}.image-card-thumb{width:100%;object-fit:contain;display:block;background:var(--bg-hover);transition:opacity .15s ease}.image-card-info{padding:8px 10px;display:flex;flex-direction:column;gap:4px}.image-card-name{font-size:11px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.image-card-status{font-size:10px;font-weight:500}.image-card-actions{display:flex;gap:4px;margin-top:4px}.image-card-checkbox{position:absolute;top:8px;left:8px;width:20px;height:20px;accent-color:var(--accent-primary);cursor:pointer;z-index:2}.loading-overlay{position:absolute;inset:0;background:#000000a6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;z-index:5;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.loading-spinner{width:32px;height:32px;border:3px solid rgba(255,255,255,.2);border-top:3px solid #A78BFA;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-text{font-size:11px;color:#fff;text-align:center;padding:0 8px}.progress-bar-container{padding:8px 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var(--transition-normal)}.group-box-title{font-size:14px;font-weight:700;color:#fff;background:var(--accent-gradient);display:inline-block;padding:4px 14px;border-radius:var(--radius-sm);margin-bottom:14px}.group-box-content{display:flex;flex-direction:column;gap:12px}.theme-toggle{padding:6px 14px;border-radius:var(--radius-md);border:none;font-size:11px;font-weight:700;cursor:pointer;transition:all var(--transition-fast);letter-spacing:.3px;white-space:nowrap}[data-theme=light] .theme-toggle{background:linear-gradient(90deg,#1e293b,#334155);color:#e2e8f0}[data-theme=light] .theme-toggle:hover{background:linear-gradient(90deg,#334155,#475569)}[data-theme=dark] .theme-toggle{background:linear-gradient(90deg,#d97706,#f59e0b);color:#0f172a}[data-theme=dark] .theme-toggle:hover{background:linear-gradient(90deg,#f59e0b,#fbbf24)}.auth-screen{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2ff,#c7d2fe)}[data-theme=dark] .auth-screen{background:linear-gradient(135deg,#0f172a,#1e1b4b)}.auth-card{width:450px;background:var(--bg-card);border-radius:var(--radius-xl);border:1px solid var(--border-color);padding:40px;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;gap:16px;animation:slideUp .5s cubic-bezier(.4,0,.2,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-app-name{text-align:center;font-size:26px;font-weight:800;color:var(--accent-primary);line-height:1.3}.auth-subtitle{text-align:center;font-size:15px;font-weight:600;color:var(--text-muted)}.auth-input{padding:14px;border:1.5px solid var(--border-color);border-radius:var(--radius-md);font-size:14px;background:var(--bg-input);color:var(--text-primary);outline:none;transition:all var(--transition-fast);font-family:inherit;width:100%}.auth-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f126}.auth-btn{width:100%;padding:14px;border:none;border-radius:var(--radius-md);background:var(--accent-gradient);color:#fff;font-weight:700;font-size:15px;cursor:pointer;transition:all var(--transition-fast);font-family:inherit;margin-top:8px}.auth-btn:hover:not(:disabled){background:var(--accent-gradient-hover);transform:translateY(-1px);box-shadow:0 4px 12px #6366f14d}.auth-btn:disabled{opacity:.6;cursor:not-allowed}.auth-link{background:none;border:none;color:var(--accent-primary);text-decoration:underline;font-size:13px;cursor:pointer;padding:4px 0;font-family:inherit}.auth-link:hover{color:var(--accent-secondary)}.auth-footer{text-align:center;font-size:12px;color:var(--text-muted);margin-top:8px}.auth-footer a{color:var(--accent-primary);text-decoration:none}.subjects-row{display:flex;align-items:center;gap:10px}.subject-preview{width:60px;height:60px;border-radius:var(--radius-md);background:var(--bg-hover);border:1.5px dashed var(--border-color);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--text-muted);overflow:hidden;flex-shrink:0}.subject-preview img{width:100%;height:100%;object-fit:cover}.subject-preview.has-image{border:1.5px solid var(--success);background:#f0fdf4}.subject-btns{display:flex;flex-direction:column;gap:4px}.btn-subject-add{padding:4px 10px;font-size:11px;font-weight:600;border:1px solid #C7D2FE;background:#eef2ff;color:#4338ca;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.btn-subject-add:hover{background:#e0e7ff}.btn-subject-clear{padding:4px 10px;font-size:11px;font-weight:600;border:1px solid #FECACA;background:#fef2f2;color:#dc2626;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.btn-subject-clear:hover{background:#fee2e2}.concept-tree{background:var(--bg-card);border:2px solid var(--border-color);border-radius:var(--radius-md);min-height:200px;max-height:340px;overflow-y:auto;padding:6px}.concept-folder{padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--text-primary);-webkit-user-select:none;user-select:none}.concept-folder:hover{background:var(--bg-hover)}.concept-folder.active{background:#eef2ff;color:var(--text-accent);font-weight:600}[data-theme=dark] .concept-folder.active{background:#312e81;color:#c7d2fe}.concept-thumbs{display:flex;gap:8px;flex-wrap:wrap;padding:8px 0}.concept-thumb{width:80px;height:106px;border-radius:var(--radius-sm);overflow:hidden;position:relative;cursor:pointer;border:2px solid var(--border-color);transition:all var(--transition-fast)}.concept-thumb:hover{border-color:var(--accent-primary);transform:translateY(-2px)}.concept-thumb 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var(--danger)}.toast-warning{border-left:4px solid var(--warning)}.toast-info{border-left:4px solid var(--accent-primary)}.badge{display:inline-flex;align-items:center;padding:2px 6px;border-radius:4px;font-size:9px;font-weight:600;letter-spacing:.3px}.badge-model{background:#6366f126;color:var(--accent-primary)}.badge-resolution{background:#05966926;color:var(--success)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 20px;text-align:center}.empty-state-icon{font-size:48px;opacity:.5}.empty-state-text{font-size:14px;color:var(--text-muted);max-width:300px}.about-content{font-size:13px;color:var(--text-secondary);line-height:1.7}.about-content b{color:var(--text-primary)}.about-content a{color:var(--accent-primary);text-decoration:none}.about-content a:hover{text-decoration:underline}.about-content hr{border:none;border-top:1px solid var(--border-color);margin:12px 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var(--transition-fast);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.overlay-action-btn.delete{background:#dc2626d9;color:#fff}.overlay-action-btn.delete:hover{background:#dc2626;transform:scale(1.1)}.overlay-action-btn.regen{background:#6366f1d9;color:#fff}.overlay-action-btn.regen:hover{background:#6366f1;transform:scale(1.1)}.image-card-ref{position:absolute;bottom:40px;right:6px;width:36px;height:36px;border-radius:6px;border:1.5px solid white;overflow:hidden;z-index:3;box-shadow:0 2px 6px #0000004d;opacity:0;transition:opacity var(--transition-fast)}.image-card:hover .image-card-ref{opacity:1}.image-card-ref img{width:100%;height:100%;object-fit:cover}.badge-model-top{position:absolute;bottom:90px;left:6px;padding:2px 6px;background:#000000b3;color:#f9a8d4;font-size:8px;font-weight:700;letter-spacing:.3px;text-transform:uppercase;z-index:4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:calc(100% - 60px);border-radius:3px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(249,168,212,.3)}.badge-res-bottom{position:absolute;bottom:90px;right:6px;padding:2px 6px;background:#000000b3;color:#4ade80;font-size:9px;font-weight:800;letter-spacing:.3px;border-radius:3px;z-index:4;text-transform:lowercase;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(74,222,128,.3)}.watermark-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.watermark-row label{font-size:12px;font-weight:600;color:var(--text-secondary);white-space:nowrap;min-width:70px}.watermark-row .input,.watermark-row .select{flex:1;min-width:100px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-pulse{animation:pulse 2s ease-in-out infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,var(--bg-hover) 25%,var(--border-color) 50%,var(--bg-hover) 75%);background-size:200% 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