:root{--primary: #12b0e8;--primary-dark: #0f90c0;--bg-color: #eaf6fc;--sidebar-bg: #dff2fa;--text-dark: #2c3e50;--text-muted: #7f8c8d;--card-green: #1abc9c;--card-orange: #f39c12;--card-red: #e74c3c;--card-blue: #00a8ff;--white: #ffffff;--shadow-sm: 0 2px 4px rgba(0,0,0,.05);--shadow-md: 0 4px 6px rgba(0,0,0,.1);--shadow-lg: 0 10px 15px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Poppins,sans-serif;background-color:var(--bg-color);background-image:radial-gradient(circle,#bcdceb 1px,transparent 1px);background-size:20px 20px;color:var(--text-dark)}.app-container{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--sidebar-bg);box-shadow:var(--shadow-md);padding:20px 0;display:flex;flex-direction:column;position:fixed;height:100vh;overflow-y:auto;border-right:1px solid rgba(255,255,255,.5);z-index:10}.sidebar-logo{display:flex;align-items:center;padding:0 20px 20px;font-size:1.2rem;font-weight:800;color:var(--primary);letter-spacing:.5px;line-height:1.2}.sidebar-logo svg{margin-right:10px;color:var(--primary)}.sidebar-menu{list-style:none;padding:0 15px}.sidebar-item{margin-bottom:5px}.sidebar-link{display:flex;align-items:center;padding:12px 15px;border-radius:10px;color:var(--text-dark);text-decoration:none;font-weight:500;font-size:.9rem;transition:all .3s ease;cursor:pointer}.sidebar-link:hover{background:#12b0e81a;color:var(--primary)}.sidebar-link.active{background:#12b0e833;color:var(--primary);font-weight:600}.sidebar-link svg{margin-right:15px;width:18px;height:18px}.sidebar-group{margin-top:15px}.sidebar-group-title{display:flex;align-items:center;justify-content:space-between;padding:10px 15px;font-size:.85rem;font-weight:600;color:var(--text-dark);cursor:pointer}.sidebar-sub-menu{list-style:none;padding-left:20px;margin-top:5px}.sidebar-sub-link{display:flex;align-items:center;padding:8px 15px;color:var(--text-muted);text-decoration:none;font-size:.85rem;transition:all .2s;border-radius:8px}.sidebar-sub-link:hover{color:var(--primary);background:#ffffff80}.sidebar-sub-link svg{margin-right:10px;width:16px;height:16px}.main-content{flex:1;margin-left:260px;padding:30px 40px;overflow-x:hidden}.header{display:flex;align-items:baseline;margin-bottom:30px}.header-title{font-size:1.8rem;font-weight:800;color:#1a252f;margin-right:15px}.header-subtitle{color:var(--text-muted);font-size:.95rem;font-weight:500}.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:30px}.card{border-radius:15px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow-md);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.card-content{padding:25px 20px;display:flex;justify-content:space-between;align-items:center;flex:1}.card-info{z-index:2}.card-number{font-size:2.5rem;font-weight:800;line-height:1;margin-bottom:5px}.card-label{font-size:1rem;font-weight:600;opacity:.9}.card-icon{opacity:.3;z-index:1}.card-icon svg{width:60px;height:60px}.card-footer{background:#0000001a;padding:8px 0;text-align:center;font-size:.8rem;font-weight:500;cursor:pointer;transition:background .2s;display:flex;align-items:center;justify-content:center;gap:5px}.card-footer:hover{background:#0003}.bg-green{background:linear-gradient(135deg,#2ecc71,#27ae60)}.bg-orange{background:linear-gradient(135deg,#f1c40f,#f39c12)}.bg-red{background:linear-gradient(135deg,#e74c3c,#c0392b)}.bg-blue{background:linear-gradient(135deg,#00d2ff,#3a7bd5)}.welcome-section{background:var(--white);border-radius:20px;padding:60px 40px;text-align:center;box-shadow:0 10px 30px #00000005;min-height:400px;display:flex;flex-direction:column;justify-content:center;align-items:center;border:1px solid rgba(255,255,255,.6);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.welcome-title{color:var(--primary);font-size:1.8rem;font-weight:800;margin-bottom:20px}.welcome-text{color:var(--text-muted);max-width:800px;line-height:1.8;font-size:1.05rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .5s ease-out forwards}@media (max-width: 1200px){.cards-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0}.cards-grid{grid-template-columns:1fr}}.table-container{background:var(--white);border-radius:15px;padding:25px;box-shadow:var(--shadow-md);margin-top:20px}.table-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.table-title{font-size:1.2rem;font-weight:700;color:var(--text-dark)}.btn-download{display:flex;align-items:center;gap:8px;background:var(--primary);color:#fff;border:none;padding:8px 16px;border-radius:8px;cursor:pointer;font-weight:600;font-size:.9rem;transition:all .2s}.btn-download:hover{background:var(--primary-dark);transform:translateY(-2px)}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px 15px;text-align:left;border-bottom:1px solid #f0f0f0}.data-table th{font-weight:600;color:var(--text-muted);font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.data-table td{color:var(--text-dark);font-size:.95rem}.data-table tbody tr:hover{background:#f8f9fa}.action-buttons{display:flex;gap:10px}.btn-icon{background:none;border:none;cursor:pointer;padding:5px;border-radius:5px;display:flex;align-items:center;justify-content:center;transition:all .2s}.btn-icon.edit{color:var(--card-blue)}.btn-icon.edit:hover{background:#00a8ff1a}.data-management-container{display:flex;gap:20px;align-items:flex-start}.form-section{flex:0 0 350px;background:var(--white);border-radius:15px;padding:25px;box-shadow:var(--shadow-md);position:sticky;top:20px}.table-section{flex:1;background:var(--white);border-radius:15px;padding:25px;box-shadow:var(--shadow-md);overflow-x:auto}.section-title{font-size:1.1rem;font-weight:700;color:var(--text-dark);margin-bottom:20px;display:flex;align-items:center;gap:10px}.form-group{margin-bottom:15px}.form-label{display:block;font-size:.85rem;font-weight:600;color:var(--text-dark);margin-bottom:8px}.form-input{width:100%;padding:10px 15px;border:1px solid #e0e0e0;border-radius:8px;font-size:.9rem;font-family:inherit;transition:border-color .3s}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #12b0e81a}.form-note{display:block;font-size:.75rem;color:var(--text-muted);margin-top:5px}.btn-submit{width:100%;padding:12px;background:var(--card-green);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .3s,transform .2s;margin-top:10px}.btn-submit:hover{background:#16a085;transform:translateY(-2px)}.btn-cancel{width:100%;padding:12px;background:#f1f2f6;color:var(--text-dark);border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:background .3s,transform .2s;margin-top:10px}.btn-cancel:hover{background:#dfe4ea}.table-header-actions{display:flex;gap:10px}.btn-outline{display:flex;align-items:center;gap:5px;background:#f8f9fa;color:var(--text-dark);border:1px solid #e0e0e0;padding:8px 12px;border-radius:6px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-outline:hover{background:#e9ecef}.btn-success{display:flex;align-items:center;gap:5px;background:var(--card-green);color:#fff;border:none;padding:8px 12px;border-radius:6px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-success:hover{background:#16a085}.avatar-img{width:35px;height:35px;border-radius:50%;object-fit:cover;border:2px solid var(--bg-color)}.badge-rfid{background:#f1f2f6;padding:4px 8px;border-radius:4px;font-family:monospace;font-size:.85rem;color:#2f3640;letter-spacing:1px}.btn-pill{padding:4px 12px;border-radius:12px;font-size:.8rem;font-weight:600;cursor:pointer;border:none;transition:all .2s}.btn-pill.edit{background:#eaf6fc;color:var(--primary)}.btn-pill.edit:hover{background:var(--primary);color:#fff}.btn-pill.delete{background:#ffeaa7;color:#d63031}.btn-pill.delete:hover{background:#ff7675;color:#fff}@media (max-width: 992px){.data-management-container{flex-direction:column}.form-section{width:100%;position:static}}