.pe-panel{width:100%;margin:0 auto 2rem;}
.pe-drop{min-height:180px;padding:1.25rem 1rem;border:2px dashed var(--border,#e2e8f0);border-radius:16px;cursor:pointer;transition:border-color .2s,background .2s;-webkit-tap-highlight-color:transparent;display:flex;align-items:center;justify-content:center;background:var(--surface-muted,#f8fafc);}
.pe-drop:hover,.pe-drop:focus-visible{border-color:var(--primary,#0ea5e9);outline:none;background:rgba(14,165,233,.04);}
.pe-drop.highlight,.pe-drop:focus-visible{border-color:var(--primary,#0ea5e9);background:rgba(14,165,233,.08);}
.pe-file-input{position:absolute;width:0;height:0;opacity:0;pointer-events:none;}
.pe-drop-inner{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:280px;}
.pe-drop-icon{width:48px;height:48px;margin-bottom:0.5rem;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E") no-repeat center;background-size:100%;}
.pe-drop:hover .pe-drop-icon,.pe-drop:focus-visible .pe-drop-icon{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230ea5e9' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='M21 15l-5-5L5 21'/%3E%3C/svg%3E");}
.pe-drop-title{font-size:1rem;font-weight:600;color:var(--text-main,#1e293b);margin:0 0 0.25rem 0;}
.pe-drop-hint{font-size:0.8125rem;color:var(--text-muted,#64748b);margin:0;}
.pe-body{display:flex;flex-direction:column;gap:1.25rem;margin-top:1.25rem;}
.pe-sheet{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:14px;overflow:hidden;}
.pe-sheet-head{padding:0.875rem 1rem;border-bottom:1px solid var(--border,#e2e8f0);}
.pe-sheet-title{font-size:1rem;font-weight:600;color:var(--text-main,#1e293b);margin:0;}
.pe-controls{display:flex;flex-direction:column;gap:1rem;padding:1rem;}
.pe-field{display:flex;flex-direction:column;gap:0.35rem;}
.pe-label{font-size:0.875rem;font-weight:500;color:var(--text-main,#1e293b);}
.pe-value{font-weight:700;color:var(--primary,#0ea5e9);}
.pe-range{width:100%;height:8px;accent-color:var(--primary,#0ea5e9);cursor:pointer;-webkit-appearance:none;appearance:none;background:var(--surface-muted,#f1f5f9);border-radius:999px;}
.pe-range::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--primary,#0ea5e9);cursor:pointer;}
.pe-range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--primary,#0ea5e9);cursor:pointer;border:none;}
.pe-types{border:none;padding:0;margin:0;}
.pe-legend{font-size:0.875rem;font-weight:500;color:var(--text-main,#1e293b);margin-bottom:0.5rem;}
.pe-check{display:flex;align-items:center;gap:0.5rem;font-size:0.875rem;color:var(--text-main,#1e293b);cursor:pointer;}
.pe-check input{accent-color:var(--primary,#0ea5e9);}
.pe-actions{display:flex;flex-wrap:wrap;gap:0.5rem;}
.pe-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0.5rem 1rem;font-size:0.875rem;font-weight:600;border-radius:10px;cursor:pointer;transition:background .2s,color .2s;-webkit-tap-highlight-color:transparent;border:none;}
.pe-btn:focus-visible{outline:none;}
.pe-btn-primary{background:var(--primary,#0ea5e9);color:#fff;}
.pe-btn-primary:hover{background:var(--primary-dark,#0284c7);}
.pe-btn-secondary{background:var(--surface-muted,#f1f5f9);color:var(--text-main,#1e293b);}
.pe-btn-secondary:hover{background:var(--border,#e2e8f0);}
.pe-btn-ghost{background:transparent;color:var(--text-muted,#64748b);}
.pe-btn-ghost:hover{color:var(--text-main,#1e293b);background:var(--surface-muted,#f8fafc);}
.pe-preview-wrap{background:var(--surface-muted,#f1f5f9);border:1px solid var(--border,#e2e8f0);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:160px;}
.pe-canvas{max-width:100%;max-height:360px;display:block;}
.pe-sheet-results{padding:1rem;}
.pe-palette-grid{display:grid;gap:1rem;margin-top:1rem;}
.palette-card{background:var(--surface,#fff);border:1px solid var(--border,#e2e8f0);border-radius:12px;padding:1rem;}
.palette-card h6{font-size:0.875rem;font-weight:600;color:var(--text-main,#1e293b);margin:0 0 0.5rem 0;}
.palette-colors{display:flex;min-height:56px;border-radius:8px;overflow:hidden;margin:0.5rem 0;border:1px solid var(--border,#e2e8f0);}
.palette-color{flex:1;display:flex;align-items:center;justify-content:center;color:#fff;font-size:0.7rem;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.4);cursor:pointer;transition:transform .15s;}
.palette-color:hover{transform:scale(1.03);z-index:1;}
.palette-info{font-size:0.75rem;color:var(--text-muted,#64748b);margin:0.5rem 0;}
.palette-actions{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.5rem;}
.action-btn{display:inline-flex;align-items:center;gap:0.35rem;padding:0.35rem 0.65rem;font-size:0.8125rem;font-weight:500;border-radius:6px;cursor:pointer;border:none;transition:background .2s;}
.action-btn-primary{background:var(--primary,#0ea5e9);color:#fff;}
.action-btn-primary:hover{background:var(--primary-dark,#0284c7);}
.action-btn-success{background:#16a34a;color:#fff;}
.action-btn-success:hover{background:#15803d;}
.action-btn-secondary{background:var(--surface-muted,#f1f5f9);color:var(--text-main,#1e293b);}
.action-btn-secondary:hover{background:var(--border,#e2e8f0);}
.pe-selected-wrap{display:none;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border,#e2e8f0);}
.pe-heading-sm{font-size:0.9375rem;font-weight:600;color:var(--text-main,#1e293b);margin:0 0 0.5rem 0;}
.pe-selected-swatch{min-height:72px;border-radius:8px;margin:0.5rem 0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:1rem;text-shadow:0 1px 2px rgba(0,0,0,.4);}
.pe-color-details{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:0.5rem;margin-top:0.5rem;}
.color-detail-item{background:var(--surface-muted,#f8fafc);border-radius:8px;padding:0.5rem;text-align:center;font-size:0.8125rem;}
.color-detail-label{color:var(--text-muted,#64748b);margin-bottom:0.25rem;}
.color-detail-value{font-family:ui-monospace,monospace;font-weight:600;word-break:break-all;}
.copy-value-btn{display:block;width:100%;margin-top:0.35rem;padding:0.25rem 0.5rem;font-size:0.75rem;border-radius:6px;border:none;background:var(--primary,#0ea5e9);color:#fff;cursor:pointer;}
.copy-value-btn:hover{background:var(--primary-dark,#0284c7);}
.pe-stats-wrap{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border,#e2e8f0);}
.pe-stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:0.5rem;margin-top:0.5rem;}
.stat-box{background:var(--surface-muted,#f8fafc);border-radius:8px;padding:0.75rem;text-align:center;}
.stat-value{font-size:1.125rem;font-weight:700;color:var(--primary,#0ea5e9);}
.stat-label{font-size:0.75rem;color:var(--text-muted,#64748b);margin-top:0.25rem;}
.pe-harmony-wrap{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border,#e2e8f0);}
.pe-harmony-grid{display:grid;gap:0.75rem;margin-top:0.5rem;}
.harmony-palette{background:var(--surface-muted,#f8fafc);border-radius:10px;padding:0.75rem;}
.harmony-palette h6{font-size:0.8125rem;font-weight:600;color:var(--text-main,#1e293b);margin:0 0 0.5rem 0;}
.harmony-colors{display:flex;min-height:36px;border-radius:6px;overflow:hidden;}
.harmony-color{flex:1;cursor:pointer;transition:transform .15s;}
.harmony-color:hover{transform:scale(1.05);z-index:1;}
.pe-edu{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border,#e2e8f0);}
.pe-edu-title{font-size:1.25rem;font-weight:600;color:var(--text-main,#1e293b);margin:0 0 0.75rem 0;}
.pe-edu-p{font-size:0.9375rem;color:var(--text-muted,#64748b);line-height:1.6;margin:0 0 0.5rem 0;}
.pe-edu-h3{font-size:1rem;font-weight:600;color:var(--text-main,#1e293b);margin:1rem 0 0.5rem 0;}
@media (min-width:768px){.pe-drop{min-height:200px;padding:1.5rem;}.pe-drop-inner{max-width:320px;}.pe-body{flex-direction:row;align-items:flex-start;gap:1.5rem;}.pe-sheet-settings{flex:0 0 280px;}.pe-sheet-results{flex:1;min-width:0;}.pe-palette-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));}.pe-color-details{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));}.pe-stats-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));}}