/* WB Optimized CSS - Minified & Deduplicated */
:root{--wb-bg:#f5f5f0;--wb-text:#333;--wb-text2:#666;--wb-accent:#4a6fa5;--wb-accent2:#3a5a8f;--wb-border:#e0e0e0;--wb-success:#2ecc71;--wb-error:#e74c3c;--wb-warning:#f39c12;--wb-shadow-sm:0 1px 3px rgba(0,0,0,.1);--wb-shadow-md:0 4px 6px rgba(0,0,0,.1);--wb-radius-sm:4px;--wb-radius-md:8px;--wb-transition:all .2s ease}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--wb-bg);color:var(--wb-text);line-height:1.6;min-height:100vh}.app-container{display:grid;grid-template-rows:auto 1fr;min-height:100vh}header{background:var(--wb-bg);border-bottom:1px solid var(--wb-border);padding:1rem 2rem;position:sticky;top:0;z-index:100;box-shadow:var(--wb-shadow-sm)}.header-content{max-width:1400px;margin:0 auto;display:flex;flex-direction:column;gap:1rem}.header-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}h1{font-size:1.8rem;font-weight:600;color:var(--wb-text)}.header-actions{display:flex;gap:.75rem;flex-wrap:wrap}.concept-input-container{display:flex;gap:.75rem;align-items:center}.concept-input-container label{font-weight:500;color:var(--wb-text2);font-size:.9rem}.concept-input-container input{flex:1;min-width:200px}main{max-width:1400px;margin:0 auto;padding:2rem;width:100%}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.category-card{background:#fff;border-radius:var(--wb-radius-md);box-shadow:var(--wb-shadow-sm);border:1px solid var(--wb-border);overflow:hidden;transition:var(--wb-transition)}.category-card:hover{box-shadow:var(--wb-shadow-md)}.category-header{background:linear-gradient(135deg,var(--wb-accent),var(--wb-accent2));color:#fff;padding:1rem 1.5rem;font-weight:600;font-size:1.1rem;display:flex;justify-content:space-between;align-items:center}.category-header .count{background:rgba(255,255,255,.2);padding:.25rem .75rem;border-radius:var(--wb-radius-sm);font-size:.85rem}.category-content{padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.item-list{display:flex;flex-direction:column;gap:.75rem}.item{background:var(--wb-bg);border-radius:var(--wb-radius-sm);padding:1rem;border:1px solid var(--wb-border);transition:var(--wb-transition)}.item:hover{border-color:var(--wb-accent)}.item-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.75rem}.item-question{font-weight:500;color:var(--wb-text);font-size:.95rem;flex:1}.item-status{width:12px;height:12px;border-radius:50%;background:var(--wb-error);margin-left:.5rem;flex-shrink:0}.item.status-completed .item-status{background:var(--wb-success)}.item-textarea{width:100%;min-height:80px;padding:.75rem;border:1px solid var(--wb-border);border-radius:var(--wb-radius-sm);font-family:inherit;font-size:.9rem;resize:vertical;background:#fff;transition:var(--wb-transition)}.item-textarea:focus{outline:none;border-color:var(--wb-accent);box-shadow:0 0 0 2px rgba(74,111,165,.2)}.item-actions{display:flex;gap:.5rem;margin-top:.5rem}.btn{padding:.5rem 1rem;border:none;border-radius:var(--wb-radius-sm);font-size:.9rem;font-weight:500;cursor:pointer;transition:var(--wb-transition);display:inline-flex;align-items:center;gap:.5rem}.btn-primary{background:var(--wb-accent);color:#fff}.btn-primary:hover{background:var(--wb-accent2)}.btn-secondary{background:var(--wb-bg);color:var(--wb-text);border:1px solid var(--wb-border)}.btn-secondary:hover{background:var(--wb-border)}.btn-success{background:var(--wb-success);color:#fff}.btn-success:hover{background:#27ae60}.btn-danger{background:var(--wb-error);color:#fff}.btn-danger:hover{background:#c0392b}.btn-warning{background:var(--wb-warning);color:#fff}.btn-warning:hover{background:#e67e22}.btn-sm{padding:.25rem .75rem;font-size:.8rem}input[type=text],input[type=file]{padding:.5rem .75rem;border:1px solid var(--wb-border);border-radius:var(--wb-radius-sm);font-family:inherit;font-size:.9rem;transition:var(--wb-transition)}input[type=text]:focus,input[type=file]:focus{outline:none;border-color:var(--wb-accent);box-shadow:0 0 0 2px rgba(74,111,165,.2)}input[type=file]{cursor:pointer}.toast-container{position:fixed;bottom:2rem;right:2rem;z-index:1000;display:flex;flex-direction:column;gap:.75rem;pointer-events:none}.toast{background:#fff;padding:1rem 1.5rem;border-radius:var(--wb-radius-md);box-shadow:var(--wb-shadow-md);border-left:4px solid var(--wb-accent);animation:slideIn .3s ease-out;display:flex;align-items:center;gap:.75rem;max-width:350px}.toast.success{border-left-color:var(--wb-success)}.toast.error{border-left-color:var(--wb-error)}.toast.warning{border-left-color:var(--wb-warning)}.toast-icon{font-size:1.2rem}.toast-message{flex:1;font-size:.9rem}@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}.add-item-form{display:flex;gap:.75rem;margin-top:1rem}.add-item-form input{flex:1}.empty-state{text-align:center;padding:2rem;color:var(--wb-text2)}.empty-state p{margin-top:.5rem}.skip-link{position:absolute;top:-40px;left:0;background:var(--wb-accent);color:#fff;padding:.5rem 1rem;z-index:100;text-decoration:none}.skip-link:focus{top:0}button:focus,input:focus,textarea:focus,[tabindex=0]:focus{outline:2px solid var(--wb-accent);outline-offset:2px}@media (max-width:768px){header{padding:1rem}.header-top{flex-direction:column;align-items:flex-start}h1{font-size:1.5rem}.header-actions{width:100%;justify-content:flex-end}.concept-input-container{flex-direction:column;align-items:flex-start}.concept-input-container input{width:100%}main{padding:1rem}.categories-grid{grid-template-columns:1fr}.toast-container{bottom:1rem;right:1rem;left:1rem;max-width:100%}.toast{max-width:none}}@media (max-width:480px){.header-actions{flex-direction:column;gap:.5rem}.btn{width:100%;justify-content:center}.add-item-form{flex-direction:column}.add-item-form input,.add-item-form button{width:100%}}