*{box-sizing:border-box;margin:0;padding:0}:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;font-weight:400;color:#2c3e50;background-color:#f5f5f5;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}.auth-container{min-height:100vh;background:linear-gradient(to bottom right,#0f172a,#1e293b,#0f172a);display:flex;align-items:center;justify-content:center;padding:1rem}.auth-card{width:100%;max-width:28rem;background:#fff;border-radius:1rem;box-shadow:0 25px 50px -12px #00000040;padding:2rem}.auth-header{text-align:center;margin-bottom:2rem}.icon-circle{display:inline-flex;align-items:center;justify-content:center;width:4rem;height:4rem;background:#2563eb;border-radius:50%;margin-bottom:1rem}.login-icon{width:2rem;height:2rem;position:relative}.login-icon:before{content:"";position:absolute;width:1rem;height:1rem;border:2px solid white;border-radius:50%;top:0;left:.25rem}.login-icon:after{content:"";position:absolute;width:1.5rem;height:1rem;border:2px solid white;border-top:none;border-radius:0 0 .5rem .5rem;bottom:0;left:0}.auth-title{font-size:1.875rem;font-weight:700;color:#111827;margin:0}.auth-subtitle{color:#4b5563;margin-top:.5rem;margin-bottom:0}.auth-form{display:flex;flex-direction:column;gap:1.5rem}.auth-form .form-group{display:flex;flex-direction:column}.auth-form .form-label{display:block;font-size:.875rem;font-weight:500;color:#374151;margin-bottom:.5rem}.auth-form .form-input{width:100%;padding:.75rem 1rem;border:1px solid #d1d5db;border-radius:.5rem;font-size:1rem;transition:all .2s}.auth-form .form-input:focus{outline:none;border-color:transparent;box-shadow:0 0 0 2px #2563eb}.auth-form .form-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:.75rem 1rem;border-radius:.5rem;font-size:.875rem}.auth-form .submit-button{width:100%;background:#2563eb;color:#fff;font-weight:600;padding:.75rem 1rem;border-radius:.5rem;border:none;cursor:pointer;transition:background-color .2s;font-size:1rem}.auth-form .submit-button:hover{background:#1d4ed8}.app{min-height:100vh;background:#f5f5f5}.app-header{background:#2c3e50;color:#fff;padding:1.5rem 2rem;box-shadow:0 2px 4px #0000001a}.app-header h1{margin:0;font-size:1.8rem}.app-container{display:flex;min-height:calc(100vh - 80px)}.sidebar{width:250px;background:#fff;padding:1.5rem;box-shadow:2px 0 4px #0000001a}.sidebar-section{margin-bottom:2rem}.sidebar-section h2{font-size:1.2rem;margin-bottom:1rem;color:#2c3e50}.group-list{display:flex;flex-direction:column;gap:.5rem}.group-item-wrapper{display:flex;gap:.5rem}.group-item{flex:1;padding:.75rem 1rem;border:none;background:#ecf0f1;border-radius:4px;cursor:pointer;text-align:left;font-size:.95rem;transition:background .2s}.group-item:hover{background:#d5dbdb}.group-item.active{background:#3498db;color:#fff}.group-delete-btn{padding:.5rem .75rem;border:none;background:#e74c3c;color:#fff;border-radius:4px;cursor:pointer;font-size:1.2rem;line-height:1}.group-delete-btn:hover{background:#c0392b}.view-tabs{display:flex;flex-direction:column;gap:.5rem}.view-tab{width:100%;padding:.75rem;border:1px solid #bdc3c7;background:#fff;color:#2c3e50;border-radius:4px;cursor:pointer;font-size:.95rem;font-weight:500;transition:all .2s}.view-tab:hover{background:#ecf0f1;border-color:#95a5a6}.view-tab.active{background:#3498db;color:#fff;border-color:#3498db}.view-tab.active:hover{background:#2980b9;border-color:#2980b9}.main-content{flex:1;padding:2rem;overflow-y:auto}.content-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.content-header h2{margin:0;color:#2c3e50}.content-header button{padding:.5rem 1rem;border:none;background:#95a5a6;color:#fff;border-radius:4px;cursor:pointer}.content-header button:hover{background:#7f8c8d}.loading{text-align:center;padding:2rem;color:#7f8c8d;font-size:1.2rem}.empty-state{text-align:center;padding:3rem;color:#95a5a6;font-size:1.2rem}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.image-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px #0000001a;transition:transform .2s,box-shadow .2s}.image-card:hover{transform:translateY(-4px);box-shadow:0 4px 12px #00000026}.image-wrapper{width:100%;height:200px;overflow:hidden;background:#ecf0f1}.image{width:100%;height:100%;object-fit:cover}.image-info{padding:1rem}.image-info h3{margin:0 0 .5rem;font-size:1rem;color:#2c3e50;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.image-info p{margin:0 0 .5rem;font-size:.85rem;color:#7f8c8d;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.group-badge{display:inline-block;padding:.25rem .5rem;background:#3498db;color:#fff;border-radius:4px;font-size:.75rem;margin-bottom:.5rem}.image-meta{display:flex;justify-content:space-between;font-size:.75rem;color:#95a5a6;margin-bottom:.75rem}.delete-btn{width:100%;padding:.5rem;border:none;background:#e74c3c;color:#fff;border-radius:4px;cursor:pointer;font-size:.9rem}.delete-btn:hover{background:#c0392b}.form-container{max-width:600px;background:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.form-container h2{margin-top:0;color:#2c3e50}.upload-form,.group-form{display:flex;flex-direction:column;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:500;color:#2c3e50;font-size:.95rem}.form-group input,.form-group textarea,.form-group select{padding:.75rem;border:1px solid #bdc3c7;border-radius:4px;font-size:1rem;font-family:inherit}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#3498db}.submit-btn{padding:.75rem;border:none;background:#3498db;color:#fff;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:500;margin-top:.5rem}.submit-btn:hover{background:#2980b9}.submit-btn:disabled{background:#95a5a6;cursor:not-allowed}.error-message{padding:.75rem;background:#e74c3c;color:#fff;border-radius:4px;font-size:.9rem}