:root{--bg: #f5f5f5;--surface: #ffffff;--surface-hover: #f0f0f0;--border: #e0e0e0;--text: #333333;--text-secondary: #666666;--primary: #4a90d9;--primary-hover: #3a7bc8;--danger: #e74c3c;--success: #2ecc71;--radius: 8px;--shadow: 0 2px 8px rgba(0,0,0,.08);--shadow-lg: 0 4px 16px rgba(0,0,0,.12)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}#app{display:none!important;min-height:100vh;flex-direction:column}html.authorized #app{display:flex!important}.app-header{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 24px;text-align:center}.app-header h1{font-size:1.5rem;color:var(--primary)}.app-header .subtitle{font-size:.875rem;color:var(--text-secondary);margin-top:4px}.app-main{flex:1;display:flex;gap:20px;padding:20px;max-width:1600px;margin:0 auto;width:100%}.control-panel{width:320px;flex-shrink:0;display:flex;flex-direction:column;gap:16px}.preview-area{flex:1;display:flex;flex-direction:column;gap:16px;min-width:0}.app-footer{background:var(--surface);border-top:1px solid var(--border);padding:12px 24px;text-align:center;font-size:.75rem;color:var(--text-secondary)}.panel-section{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.panel-section h2{font-size:1rem;margin-bottom:12px;color:var(--text)}.panel-section h3{font-size:.875rem;margin:16px 0 8px;color:var(--text-secondary)}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:20px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s}.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:#4a90d90d}.upload-icon{font-size:2rem;display:block;margin-bottom:8px}.upload-placeholder p{font-size:.875rem;color:var(--text-secondary)}.upload-hint{font-size:.75rem!important;margin-top:4px}.upload-preview{display:flex;align-items:center;gap:12px}.upload-preview img{width:60px;height:60px;object-fit:cover;border-radius:4px}.file-info{display:flex;flex-direction:column;text-align:left;font-size:.75rem;color:var(--text-secondary)}.note{font-size:.75rem;color:var(--text-secondary);margin-top:8px}.preset-sizes{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.size-btn,.mode-btn,.palette-tab{padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;font-size:.875rem;transition:all .2s}.size-btn:hover,.mode-btn:hover,.palette-tab:hover{border-color:var(--primary)}.size-btn.active,.mode-btn.active,.palette-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.custom-size{display:flex;align-items:center;gap:8px;font-size:.875rem}.custom-size input{width:60px;padding:6px 8px;border:1px solid var(--border);border-radius:4px;text-align:center}.mode-toggle{display:flex;gap:8px}.mode-btn{flex:1}.palette-tabs{display:flex;gap:8px;margin-bottom:12px}.palette-tab{flex:1}.palette-options{margin-bottom:12px}.palette-list{max-height:300px;overflow-y:auto;display:flex;flex-direction:column;gap:6px}.palette-item{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:4px;transition:background .2s}.palette-item:hover{background:var(--surface-hover)}.palette-item.disabled{opacity:.4}.palette-item.hidden-item{display:none}.color-swatch{width:24px;height:24px;border-radius:50%;border:2px solid var(--border);flex-shrink:0}.color-info{flex:1;min-width:0;font-size:.75rem}.color-name{font-weight:500}.color-name-en{color:var(--text-secondary);font-size:.7rem}.color-count{font-size:.75rem;font-weight:600;color:var(--primary);min-width:40px;text-align:right}.palette-item.disabled .color-count{color:var(--text-secondary)}.toggle-switch{position:relative;width:36px;height:20px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.toggle-slider{position:absolute;cursor:pointer;top:0;right:0;bottom:0;left:0;background:#ccc;border-radius:20px;transition:.2s}.toggle-slider:before{content:"";position:absolute;height:16px;width:16px;left:2px;bottom:2px;background:#fff;border-radius:50%;transition:.2s}.toggle-switch input:checked+.toggle-slider{background:var(--primary)}.toggle-switch input:checked+.toggle-slider:before{transform:translate(16px)}.export-btn{width:100%;padding:12px;border:none;border-radius:var(--radius);font-size:.875rem;cursor:pointer;margin-bottom:8px;transition:all .2s}.export-btn:disabled{opacity:.5;cursor:not-allowed}.export-btn.primary{background:var(--primary);color:#fff}.export-btn.primary:hover:not(:disabled){background:var(--primary-hover)}.export-btn.secondary{background:var(--surface-hover);color:var(--text);border:1px solid var(--border)}.export-btn.secondary:hover:not(:disabled){background:var(--border)}.preview-toolbar{display:flex;gap:16px;padding:8px 16px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.checkbox-label{display:flex;align-items:center;gap:6px;font-size:.875rem;cursor:pointer}.checkbox-label input[type=checkbox]{width:16px;height:16px;cursor:pointer}.preview-container{flex:1;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;overflow:auto;min-height:300px;position:relative}#previewCanvas{max-width:100%;max-height:100%}.empty-state{text-align:center;color:var(--text-secondary)}.empty-state span{font-size:3rem;display:block;margin-bottom:12px}.inventory-panel{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.inventory-panel h3{font-size:1rem;margin-bottom:12px}.inventory-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;max-height:200px;overflow-y:auto}.inventory-item{display:flex;align-items:center;gap:8px;padding:6px 10px;background:var(--bg);border-radius:4px;font-size:.8rem}.inventory-item .color-swatch{width:18px;height:18px}.inventory-item .color-info{flex:1}.inventory-item .color-count{min-width:50px;text-align:right;font-weight:600}.inventory-item .color-pct{font-size:.7rem;color:var(--text-secondary);min-width:40px;text-align:right}.inventory-summary{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);font-size:.875rem;color:var(--text-secondary);display:flex;gap:16px}.error-msg{color:var(--danger);font-size:.75rem;margin-top:6px}.hidden{display:none!important}@media (max-width: 900px){.app-main{flex-direction:column}.control-panel{width:100%}.preview-container{min-height:200px}}@media (max-width: 600px){.app-main{padding:12px;gap:12px}.preset-sizes{grid-template-columns:repeat(2,1fr)}.inventory-list{grid-template-columns:1fr}}.password-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:radial-gradient(circle at center,#2d1b4e,#0f0a1e);display:flex;justify-content:center;align-items:center;z-index:99999;opacity:0;pointer-events:none;transition:opacity .4s cubic-bezier(.25,1,.5,1)}.password-overlay.visible{opacity:1;pointer-events:auto}.password-overlay.fade-out{opacity:0;pointer-events:none}.password-card{background:#ffffff14;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.15);border-radius:16px;width:90%;max-width:400px;padding:40px 30px;text-align:center;box-shadow:0 20px 50px #00000080,0 0 40px #6f42c133;transform:translateY(0);transition:transform .3s ease;color:#fff}.password-card.shake{animation:shake .5s cubic-bezier(.36,.07,.19,.97) both}.lock-icon{font-size:3rem;margin-bottom:20px;animation:pulse 2s infinite ease-in-out;display:inline-block}.password-card h2{font-size:1.6rem;font-weight:600;margin-bottom:10px;color:#fff;letter-spacing:1px}.lock-desc{font-size:.9rem;color:#fff9;margin-bottom:30px;line-height:1.4}.input-group{position:relative;margin-bottom:20px;display:flex;align-items:center;width:100%}.input-group input{width:100%;padding:14px 45px 14px 16px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:1rem;outline:none;transition:all .3s ease}.input-group input:focus{border-color:#a855f7;background:#ffffff14;box-shadow:0 0 15px #a855f766}.input-group input.input-error{border-color:#ef4444;box-shadow:0 0 15px #ef44444d}.toggle-password-btn{position:absolute;right:12px;background:none;border:none;color:#ffffff80;cursor:pointer;font-size:1.1rem;padding:4px;-webkit-user-select:none;user-select:none;transition:color .2s}.toggle-password-btn:hover{color:#fff}.submit-btn{width:100%;padding:14px;background:linear-gradient(135deg,#a855f7,#6366f1);border:none;border-radius:8px;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s;box-shadow:0 4px 15px #a855f74d}.submit-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #a855f780}.submit-btn:active{transform:translateY(0)}.password-card .error-msg{color:#f87171;font-size:.85rem;margin-top:15px;text-align:center}@keyframes shake{10%,90%{transform:translate3d(-1px,0,0)}20%,80%{transform:translate3d(2px,0,0)}30%,50%,70%{transform:translate3d(-4px,0,0)}40%,60%{transform:translate3d(4px,0,0)}}@keyframes pulse{0%{transform:scale(1);filter:drop-shadow(0 0 2px rgba(168,85,247,.2))}50%{transform:scale(1.05);filter:drop-shadow(0 0 15px rgba(168,85,247,.6))}to{transform:scale(1);filter:drop-shadow(0 0 2px rgba(168,85,247,.2))}}