*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.app{min-height:100vh;padding-bottom:2rem}.app-header{background:#fff;box-shadow:0 2px 10px #0000001a;padding:1.5rem 2rem;margin-bottom:2rem}.app-header h1{color:#667eea;font-size:2rem;text-align:center}.app-container{max-width:1200px;margin:0 auto;padding:0 2rem}.collections-page{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 4px 20px #0000001a}.collections-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.collections-header h2{color:#333;font-size:1.8rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-primary{background:#667eea;color:#fff}.btn-primary:hover{background:#5568d3;transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.btn-secondary{background:#e0e7ff;color:#667eea}.btn-secondary:hover{background:#c7d2fe}.btn-back{background:#f3f4f6;color:#374151;padding:.5rem 1rem}.btn-back:hover{background:#e5e7eb}.btn-icon{background:transparent;border:none;font-size:1.2rem;cursor:pointer;padding:.25rem;transition:transform .2s}.btn-icon:hover{transform:scale(1.2)}.btn-delete:hover{filter:brightness(1.2)}.collection-form,.card-form{background:#f9fafb;padding:1.5rem;border-radius:8px;margin-bottom:2rem;border:2px solid #e5e7eb}.collection-form input,.card-form input{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:6px;font-size:1rem;transition:border-color .3s}.collection-form input:focus,.card-form input:focus{outline:none;border-color:#667eea}.form-row{display:grid;grid-template-columns:1fr 2fr 2fr;gap:1rem;margin-bottom:1rem}.form-actions{display:flex;gap:1rem;margin-top:1rem}.collections-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.collection-card{background:#fff;border:2px solid #e5e7eb;border-radius:12px;padding:1.5rem;transition:all .3s ease}.collection-card:hover{border-color:#667eea;box-shadow:0 8px 20px #667eea33;transform:translateY(-4px)}.collection-card-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:1rem}.collection-card-header h3{color:#333;font-size:1.3rem;flex:1}.collection-stats{background:#f3f4f6;padding:1rem;border-radius:8px;margin-bottom:1rem}.collection-stats p{margin:.5rem 0;color:#6b7280;font-size:.95rem}.stat-row{display:flex;justify-content:space-between;align-items:center;padding:.4rem 0;color:#6b7280;font-size:.9rem}.stat-row:not(:last-child){border-bottom:1px solid #e5e7eb}.stat-value{font-weight:600;color:#374151}.stat-owned{color:#059669}.stat-missing{color:#dc2626}.stat-duplicates{color:#d97706}.collection-view{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 4px 20px #0000001a}.collection-view-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;gap:1rem}.collection-view-header h2{color:#333;font-size:1.8rem;flex:1;text-align:center}.stats-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:2rem}.view-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;gap:1rem}.search-box{position:relative;flex:1;max-width:400px}.search-input{width:100%;padding:.75rem 2.5rem .75rem 1rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;transition:all .3s}.search-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.search-clear{position:absolute;right:.5rem;top:50%;transform:translateY(-50%);background:#e5e7eb;border:none;border-radius:50%;width:24px;height:24px;cursor:pointer;font-size:.9rem;display:flex;align-items:center;justify-content:center;transition:all .2s;color:#6b7280}.search-clear:hover{background:#d1d5db;color:#374151}.compact-toggle{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-weight:500;color:#374151;-webkit-user-select:none;user-select:none;white-space:nowrap}.compact-toggle input[type=checkbox]{width:18px;height:18px;cursor:pointer}.compact-toggle:hover{color:#667eea}.stat-card{background:#f3f4f6;padding:1.5rem;border-radius:10px;text-align:center;border:3px solid transparent;transition:all .3s ease}.stat-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px #0000001a}.stat-card.primary{border-color:#667eea;background:#e0e7ff}.stat-card.success{border-color:#10b981;background:#d1fae5}.stat-card.error{border-color:#ef4444;background:#fee2e2}.stat-card.warning{border-color:#f59e0b;background:#fef3c7}.stat-value{font-size:2rem;font-weight:700;color:#333;margin-bottom:.5rem}.stat-label{font-size:.9rem;color:#6b7280;font-weight:500}.tabs{display:flex;gap:.5rem;margin-bottom:2rem;border-bottom:2px solid #e5e7eb;align-items:center}.tabs-spacer{flex:1}.tab{background:transparent;border:none;padding:1rem 1.5rem;font-size:1rem;font-weight:600;color:#6b7280;cursor:pointer;border-bottom:3px solid transparent;transition:all .3s}.tab:hover{color:#667eea;background:#f3f4f6}.tab.active{color:#667eea;border-bottom-color:#667eea}.export-container{position:relative;display:inline-block}.btn-export{background:#10b981;color:#fff;padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.btn-export:hover{background:#059669;transform:translateY(-2px);box-shadow:0 4px 12px #10b98166}.export-menu{position:absolute;top:100%;right:0;margin-top:.5rem;background:#fff;border:2px solid #e5e7eb;border-radius:8px;box-shadow:0 4px 20px #00000026;z-index:100;min-width:200px;overflow:hidden}.export-option{display:block;width:100%;padding:1rem 1.5rem;background:#fff;border:none;border-bottom:1px solid #e5e7eb;text-align:left;font-size:1rem;font-weight:500;color:#374151;cursor:pointer;transition:all .2s}.export-option:last-child{border-bottom:none}.export-option:hover{background:#f3f4f6;color:#667eea}.export-option:active{background:#e5e7eb}.card-list{display:flex;flex-direction:column;gap:1rem}.card-item{display:flex;gap:1rem;background:#f9fafb;border:2px solid #e5e7eb;border-radius:10px;padding:1rem;transition:all .3s}.card-item:hover{border-color:#667eea;box-shadow:0 4px 12px #667eea1a}.card-image{width:80px;height:80px;border-radius:8px;overflow:hidden;flex-shrink:0;background:#e5e7eb}.card-image img{width:100%;height:100%;object-fit:cover}.card-info{flex:1;display:flex;flex-direction:column;gap:.75rem}.card-header{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.card-edit-form{display:flex;align-items:center;gap:.5rem;flex:1;flex-wrap:wrap}.edit-input{padding:.4rem .6rem;border:2px solid #667eea;border-radius:6px;font-size:.95rem;font-weight:600}.edit-input:focus{outline:none;border-color:#5568d3;box-shadow:0 0 0 3px #667eea1a}.edit-input-code{width:100px}.edit-input-title{flex:1;min-width:200px}.btn-icon-edit{background:transparent;border:none;font-size:1.1rem;cursor:pointer;padding:.25rem;transition:transform .2s;border-radius:4px}.btn-icon-edit:hover{transform:scale(1.15)}.btn-edit{opacity:.6}.btn-edit:hover{opacity:1}.btn-save{color:#10b981;font-size:1.4rem;font-weight:700}.btn-save:hover{background:#d1fae5}.btn-cancel{color:#ef4444;font-size:1.2rem;font-weight:700}.btn-cancel:hover{background:#fee2e2}.card-code{background:#667eea;color:#fff;padding:.25rem .75rem;border-radius:6px;font-weight:700;font-size:.9rem}.card-header h4{color:#333;font-size:1.1rem}.card-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.quantity-control{display:flex;align-items:center;gap:.5rem}.btn-quantity{width:32px;height:32px;border:2px solid #667eea;background:#fff;color:#667eea;border-radius:6px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .2s}.btn-quantity:hover{background:#667eea;color:#fff}.quantity-input{width:60px;padding:.5rem;text-align:center;border:2px solid #e5e7eb;border-radius:6px;font-size:1rem;font-weight:600}.quantity-label{font-size:.95rem;font-weight:600;padding:.25rem .75rem;border-radius:6px}.card-list-compact{background:#fff;border:2px solid #e5e7eb;border-radius:10px;overflow:hidden}.compact-header{display:grid;grid-template-columns:80px 1fr 50px;gap:.5rem;padding:.4rem .75rem;background:#667eea;color:#fff;font-weight:600;font-size:.85rem}.card-item-compact{display:grid;grid-template-columns:80px 1fr 50px;gap:.5rem;padding:.4rem .75rem;border-bottom:1px solid #e5e7eb;align-items:center;transition:background .2s;font-size:.9rem}.card-item-compact:last-child{border-bottom:none}.card-item-compact:hover{background:#f9fafb}.compact-col-code{font-weight:600}.compact-col-title{font-size:.9rem}.compact-col-qty{display:flex;justify-content:center;font-weight:600;color:#667eea}.card-code-mini{background:#667eea;color:#fff;padding:.15rem .4rem;border-radius:4px;font-size:.8rem;display:inline-block}.empty-state{text-align:center;padding:3rem 2rem;color:#9ca3af;font-size:1.1rem}@media(max-width:768px){.app-container{padding:0 1rem}.collections-header{flex-direction:column;align-items:stretch;gap:1rem}.collection-view-header{flex-direction:column}.collection-view-header h2{text-align:left}.form-row{grid-template-columns:1fr}.stats-container{grid-template-columns:repeat(2,1fr);gap:.5rem}.stat-value{font-size:1.3rem}.stat-label{font-size:.75rem}.tabs{flex-wrap:wrap}.tabs-spacer{display:none}.export-container,.btn-export{width:100%}.card-item{flex-direction:column}.card-actions{justify-content:space-between}.compact-header,.card-item-compact{grid-template-columns:70px 1fr 45px;gap:.4rem;padding:.35rem .5rem}.compact-header{font-size:.75rem}.compact-col-title{font-size:.8rem}.card-code-mini{font-size:.75rem;padding:.1rem .3rem}.view-controls{flex-direction:column;align-items:stretch}.search-box{max-width:none}}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:2rem}.auth-card{background:#fff;border-radius:16px;padding:2.5rem;box-shadow:0 10px 40px #0003;width:100%;max-width:420px}.auth-card h2{color:#667eea;font-size:2rem;text-align:center;margin-bottom:.5rem}.auth-subtitle{color:#6b7280;text-align:center;margin-bottom:2rem}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.auth-error{background:#fef2f2;color:#dc2626;padding:.75rem 1rem;border-radius:8px;font-size:.9rem;border:1px solid #fecaca}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{color:#374151;font-weight:500;font-size:.9rem}.form-group input{padding:.75rem 1rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;transition:border-color .2s ease}.form-group input:focus{outline:none;border-color:#667eea}.form-group input:disabled{background:#f9fafb;cursor:not-allowed}.btn-full{width:100%;padding:1rem;font-size:1.1rem}.btn-link{background:none;color:#667eea;padding:0;font-weight:600}.btn-link:hover{text-decoration:underline}.auth-footer{margin-top:1.5rem;text-align:center;display:flex;justify-content:center;align-items:center;gap:.5rem}.auth-footer p{color:#6b7280;margin:0}.app-header{display:flex;justify-content:space-between;align-items:center}.user-menu{display:flex;align-items:center;gap:1rem}.user-name{color:#667eea;font-weight:500}.btn-sm{padding:.5rem 1rem;font-size:.9rem}.loading-screen{display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;gap:1rem}.loading-screen p{color:#fff;font-size:1.2rem}.loading-spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-overlay{position:fixed;inset:0;background:#fffc;display:flex;justify-content:center;align-items:center;z-index:1000}.loading-overlay .loading-spinner{border-color:#667eea4d;border-top-color:#667eea}.error-banner{background:#fef2f2;color:#dc2626;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;border-radius:8px;max-width:1200px;margin:0 auto 1rem}.error-banner button{background:none;border:none;color:#dc2626;cursor:pointer;font-size:1.2rem;padding:.25rem}@media(max-width:480px){.auth-card{padding:1.5rem}.auth-card h2{font-size:1.5rem}.app-header{flex-direction:column;gap:1rem;text-align:center}.user-menu{flex-direction:column;gap:.5rem}}