.app{display:flex;flex-direction:column;min-height:100vh}.header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;padding:2rem 1rem;box-shadow:var(--shadow-md)}.header-content{max-width:1200px;margin:0 auto}.logo{font-size:2rem;margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}.logo-icon{font-size:2rem}.tagline{font-size:.95rem;opacity:.95;margin:0}.navigation{background-color:var(--bg-white);border-bottom:1px solid var(--border-color);padding:0;display:flex;gap:0;max-width:100%;overflow-x:auto;box-shadow:var(--shadow-sm)}.nav-tab{flex:1;padding:1rem;background:none;border:none;border-bottom:3px solid transparent;color:var(--text-secondary);font-weight:500;border-radius:0;transition:all .2s ease;cursor:pointer;white-space:nowrap;font-size:.95rem}.nav-tab:hover{background-color:var(--bg-light);color:var(--text-primary)}.nav-tab.active{color:var(--primary-color);border-bottom-color:var(--primary-color);background-color:var(--bg-light)}.main-content{flex:1;padding:2rem 1rem;background-color:var(--bg-light)}.container{max-width:1200px;margin:0 auto}.tab-content{display:flex;flex-direction:column;gap:2rem}.section{background-color:var(--bg-white);padding:1.5rem;border-radius:.5rem;box-shadow:var(--shadow-sm)}.section h2{margin-top:0;color:var(--text-primary)}.footer{background-color:var(--text-primary);color:#fff;text-align:center;padding:2rem 1rem;margin-top:auto}.footer p{margin:0}.form{display:grid;gap:1rem;max-width:600px}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:500;font-size:.875rem;color:var(--text-primary)}.form-group input,.form-group select,.form-group textarea{padding:.65rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:.875rem;font-family:inherit;transition:all .2s ease}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-group input:disabled,.form-group select:disabled{background-color:var(--bg-light);color:var(--text-secondary);cursor:not-allowed}.error-message{color:var(--danger-color);font-size:.8rem;margin-top:.25rem}.success-message{color:var(--success-color);font-size:.8rem;margin-top:.25rem}.button-group{display:flex;gap:.5rem;justify-content:flex-end}button{padding:.65rem 1.25rem;border-radius:.375rem;font-size:.875rem;font-weight:500;border:none;cursor:pointer;transition:all .2s ease}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark)}.btn-primary:disabled{background-color:#cbd5e1;cursor:not-allowed}.btn-secondary{background-color:var(--border-color);color:var(--text-primary)}.btn-secondary:hover{background-color:#d1d5db}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-danger:hover{background-color:#b91c1c}.btn-success{background-color:var(--success-color);color:#fff}.btn-success:hover{background-color:#15803d}.btn-small{padding:.4rem .75rem;font-size:.8rem}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse}.table thead{background-color:var(--bg-light)}.table th{padding:1rem .75rem;text-align:left;font-weight:600;color:var(--text-secondary);font-size:.875rem;text-transform:uppercase;border-bottom:2px solid var(--border-color)}.table td{padding:1rem .75rem;border-bottom:1px solid var(--border-color);color:var(--text-primary)}.table tbody tr:hover{background-color:var(--bg-light)}.table-actions{display:flex;gap:.5rem}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}.empty-state p{margin:.5rem 0}.loading{display:flex;justify-content:center;align-items:center;padding:2rem}.spinner{border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;width:32px;height:32px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.alert{padding:1rem;border-radius:.375rem;margin-bottom:1rem;font-size:.875rem}.alert-success{background-color:#dcfce7;color:#166534;border-left:4px solid var(--success-color)}.alert-error{background-color:#fee2e2;color:#991b1b;border-left:4px solid var(--danger-color)}.alert-info{background-color:#dbeafe;color:#0c4a6e;border-left:4px solid var(--primary-color)}@media (max-width: 768px){.header{padding:1.5rem 1rem}.logo{font-size:1.5rem}.main-content,.section{padding:1rem}.table{font-size:.8rem}.table th,.table td{padding:.5rem}.form{max-width:100%}.nav-tab{padding:.75rem;font-size:.85rem}}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;padding:1.5rem;border-radius:.5rem;display:flex;align-items:center;gap:1rem;box-shadow:var(--shadow-md);transition:transform .2s ease}.stat-card:hover{transform:translateY(-2px)}.stat-icon{font-size:2.5rem}.stat-content{flex:1}.stat-value{font-size:2rem;font-weight:700;margin-bottom:.25rem}.stat-label{font-size:.9rem;opacity:.95}.dashboard-section{background-color:var(--bg-white);padding:1.5rem;border-radius:.5rem;box-shadow:var(--shadow-sm)}.dashboard-section h3{margin-top:0;margin-bottom:1rem}.badge{display:inline-block;padding:.25rem .75rem;border-radius:9999px;font-size:.8rem;font-weight:600}.badge-success{background-color:#dcfce7;color:#166534}.badge-danger{background-color:#fee2e2;color:#991b1b}.status-badge{display:inline-block;padding:.25rem .75rem;border-radius:.25rem;font-size:.8rem;font-weight:600}.status-present{background-color:#dcfce7;color:#166534}.status-absent{background-color:#fee2e2;color:#991b1b}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--primary-dark: #1e40af;--success-color: #16a34a;--danger-color: #dc2626;--warning-color: #ea580c;--bg-light: #f8fafc;--bg-white: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1)}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-color:var(--bg-light);color:var(--text-primary);line-height:1.5}h1,h2,h3,h4,h5,h6{font-weight:600;margin-bottom:.5rem}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}button{cursor:pointer;border:none;border-radius:.375rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;transition:all .2s ease}button:hover{opacity:.9}button:active{transform:scale(.98)}input,select,textarea{font-family:inherit;padding:.5rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:.875rem;transition:all .2s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}table{width:100%;border-collapse:collapse}thead{background-color:var(--bg-light)}th,td{padding:.75rem;text-align:left;border-bottom:1px solid var(--border-color)}th{font-weight:600;color:var(--text-secondary);font-size:.875rem;text-transform:uppercase}tbody tr:hover{background-color:var(--bg-light)}