:root{--app-bg:#f8fafc;--sidebar-bg:#ffffff;--panel-bg:#ffffff;--text-main:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--primary-color:#3b82f6;--primary-hover:#2563eb;--secondary-color:#f1f5f9;--secondary-hover:#e2e8f0;--danger-color:#ef4444;--success-color:#10b981;--shadow-sm:0 1px 2px 0 rgba(0, 0, 0, 0.05);--shadow-md:0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);--shadow-lg:0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--transition:all 0.2s cubic-bezier(0.4, 0, 0.2, 1)}[data-theme="dark"]{--app-bg:#0f172a;--sidebar-bg:#1e293b;--panel-bg:#1e293b;--text-main:#f8fafc;--text-muted:#94a3b8;--border-color:#334155;--secondary-color:#334155;--secondary-hover:#475569}.color-app{display:flex;flex-direction:column;min-height:80vh;background:var(--app-bg);color:var(--text-main);font-family:'Inter','Outfit',sans-serif;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}@media (min-width:992px){.color-app{flex-direction:row}}.color-sidebar{width:100%;background:var(--sidebar-bg);border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);padding:24px;display:flex;flex-direction:column;gap:24px;z-index:10}@media (min-width:992px){.color-sidebar{width:300px;border-bottom:none;flex-shrink:0}}.base-color-section h3,.saved-palettes-header h3,.shades-tints-section h3,.wcag-section h3,.preview-title{font-size:1.1rem;font-weight:600;margin-bottom:12px;color:var(--text-main)}.color-input-wrapper{display:flex;align-items:center;gap:12px;margin-bottom:16px}#baseColorInput{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:48px;height:48px;border:none;border-radius:var(--radius-md);cursor:pointer;overflow:hidden;padding:0;background:#fff0;box-shadow:var(--shadow-sm)}#baseColorInput::-webkit-color-swatch-wrapper{padding:0}#baseColorInput::-webkit-color-swatch{border:none;border-radius:var(--radius-md)}#baseColorHex{flex:1;height:48px;padding:0 16px;font-size:1.1rem;font-weight:600;text-transform:uppercase;border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--app-bg);color:var(--text-main);letter-spacing:1px}#baseColorHex:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(59 130 246 / .2)}.btn-primary,.btn-secondary,.btn-text{width:100%;padding:12px 16px;border-radius:var(--radius-md);font-size:.95rem;font-weight:500;cursor:pointer;transition:var(--transition);border:none;display:flex;align-items:center;justify-content:center;gap:8px}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--secondary-color);color:var(--text-main);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--secondary-hover)}.btn-text{background:#fff0;color:var(--text-muted);padding:4px 8px;width:auto}.btn-text:hover{color:var(--danger-color);background:rgb(239 68 68 / .1)}.app-tabs{display:flex;flex-direction:column;gap:4px}.tab-btn{text-align:left;padding:12px 16px;background:#fff0;border:none;border-radius:var(--radius-md);color:var(--text-muted);font-weight:500;cursor:pointer;transition:var(--transition)}.tab-btn:hover{background:var(--secondary-color);color:var(--text-main)}.tab-btn.active{background:var(--primary-color);color:#fff;box-shadow:var(--shadow-md)}.saved-palettes-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.saved-palettes-header h3{margin-bottom:0}.saved-palettes-list{display:flex;flex-direction:column;gap:8px;max-height:200px;overflow-y:auto}.saved-palette-item{display:flex;align-items:center;justify-content:space-between;padding:8px;background:var(--secondary-color);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition)}.saved-palette-item:hover{background:var(--secondary-hover)}.saved-colors-mini{display:flex;height:24px;border-radius:4px;overflow:hidden;flex:1;margin-right:12px}.mini-color{flex:1;height:100%}.color-main-content{flex:1;padding:24px;position:relative;overflow-y:auto}@media (min-width:992px){.color-main-content{padding:40px}}.tab-pane{display:none;animation:fadeIn 0.3s ease}.tab-pane.active{display:block}@keyframes fadeIn{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.harmony-controls{display:grid;grid-template-columns:1fr;gap:16px;margin-bottom:32px}@media (min-width:768px){.harmony-controls{grid-template-columns:1fr 1fr}}.harmony-controls label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-muted);font-size:.9rem}select{width:100%;padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--sidebar-bg);color:var(--text-main);font-size:1rem;appearance:none;cursor:pointer}select:focus{outline:none;border-color:var(--primary-color)}.palette-display{display:flex;flex-direction:column;gap:16px;margin-bottom:40px}@media (min-width:768px){.palette-display{flex-direction:row;height:200px}}.color-card{flex:1;display:flex;flex-direction:column;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);cursor:pointer;min-height:100px}.color-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.color-swatch{flex:1;min-height:80px;display:flex;align-items:center;justify-content:center;position:relative}.color-swatch::after{content:'Copy';position:absolute;background:rgb(0 0 0 / .6);color:#fff;padding:6px 12px;border-radius:20px;font-size:.8rem;opacity:0;transition:var(--transition)}.color-card:hover .color-swatch::after{opacity:1}.color-info{background:var(--sidebar-bg);padding:16px;text-align:center;border-top:1px solid var(--border-color)}.color-hex{font-weight:700;font-size:1.1rem;margin-bottom:4px;text-transform:uppercase}.color-rgb{font-size:.8rem;color:var(--text-muted)}.shades-tints-section{margin-bottom:40px}.shades-grid{display:flex;flex-direction:column;gap:12px}.shade-row{display:flex;height:48px;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm)}.shade-item{flex:1;cursor:pointer;transition:var(--transition);position:relative}.shade-item:hover{transform:scale(1.1);z-index:2;border-radius:4px;box-shadow:var(--shadow-md)}.wcag-grid{display:grid;grid-template-columns:1fr;gap:16px}@media (min-width:768px){.wcag-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}}.wcag-card{background:var(--sidebar-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:12px}.wcag-header{display:flex;justify-content:space-between;align-items:center}.wcag-ratio{font-size:1.5rem;font-weight:700}.wcag-sample{padding:20px;border-radius:var(--radius-md);text-align:center;font-size:1.2rem;font-weight:600;border:1px solid var(--border-color)}.wcag-badges{display:flex;gap:8px;flex-wrap:wrap}.badge{padding:4px 8px;border-radius:4px;font-size:.75rem;font-weight:600}.badge.pass{background:rgb(16 185 129 / .1);color:var(--success-color)}.badge.fail{background:rgb(239 68 68 / .1);color:var(--danger-color)}.upload-area{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:40px 20px;text-align:center;cursor:pointer;transition:var(--transition);background:var(--sidebar-bg)}.upload-area:hover,.upload-area.dragover{border-color:var(--primary-color);background:rgb(59 130 246 / .05)}.image-preview-container{margin-top:20px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);max-height:400px;display:flex;justify-content:center;background:var(--sidebar-bg)}canvas#imageCanvas{max-width:100%;object-fit:contain}.mixer-container{background:var(--sidebar-bg);border-radius:var(--radius-lg);padding:24px;border:1px solid var(--border-color)}.mixer-inputs{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}@media (min-width:768px){.mixer-inputs{flex-direction:row;align-items:center}}.mix-control{display:flex;flex-direction:column;align-items:center;gap:8px}.mix-control input[type="color"]{width:80px;height:80px;border:none;border-radius:50%;cursor:pointer;box-shadow:var(--shadow-md)}.mix-control input[type="color"]::-webkit-color-swatch-wrapper{padding:0}.mix-control input[type="color"]::-webkit-color-swatch{border:none;border-radius:50%}.mix-slider{flex:1;text-align:center}.mix-slider input[type="range"]{width:100%;margin-top:12px}.mixer-result{text-align:center;padding-top:24px;border-top:1px solid var(--border-color)}.mix-result-color{width:100%;height:120px;border-radius:var(--radius-md);margin:16px 0;box-shadow:var(--shadow-md)}.mix-result-hex{font-size:1.5rem;font-weight:700;text-transform:uppercase}.ui-preview-mockup{border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;background:#fff;color:#333;box-shadow:var(--shadow-lg);transition:all 0.3s ease}.ui-header{padding:20px 32px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgb(0 0 0 / .1)}.ui-logo{font-weight:800;font-size:1.2rem}.ui-nav{display:flex;gap:16px;font-weight:500;font-size:.9rem}.ui-hero{padding:60px 32px;text-align:center}.ui-hero-title{font-size:2.5rem;margin-bottom:16px;font-weight:800}.ui-hero-text{font-size:1.1rem;max-width:600px;margin:0 auto 32px auto;opacity:.9}.ui-actions{display:flex;gap:16px;justify-content:center}.ui-btn-primary,.ui-btn-secondary{padding:12px 24px;border-radius:30px;font-weight:600;border:none;cursor:pointer;font-size:1rem;transition:transform 0.2s}.ui-btn-primary:hover,.ui-btn-secondary:hover{transform:translateY(-2px)}.ui-cards{display:flex;gap:24px;padding:0 32px 60px 32px;justify-content:center}.ui-card{flex:1;max-width:300px;padding:24px;border-radius:var(--radius-md);background:rgb(255 255 255 / .05);border:1px solid rgb(0 0 0 / .1)}.ui-card-icon{width:40px;height:40px;border-radius:50%;margin-bottom:16px}.export-controls{margin-bottom:24px}.export-output{position:relative;background:var(--sidebar-bg);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}pre{margin:0;padding:24px;overflow-x:auto;font-family:'Fira Code','Courier New',Courier,monospace;font-size:.9rem;color:var(--text-main)}#btnCopyExport{position:absolute;top:12px;right:12px;width:auto;padding:8px 16px;font-size:.8rem}.sim-protanopia{filter:url(#protanopia)}.sim-deuteranopia{filter:url(#deuteranopia)}.sim-tritanopia{filter:url(#tritanopia)}.sim-achromatopsia{filter:url(#achromatopsia)}