:root{--primary-color: #4361ee;--primary-light: #4895ef;--secondary-color: #3f37c9;--success-color: #4cc9f0;--danger-color: #f72585;--warning-color: #f8961e;--info-color: #90e0ef;--dark-color: #1b263b;--light-color: #f8f9fa;--gray-100: #f8f9fa;--gray-200: #e9ecef;--gray-300: #dee2e6;--gray-400: #ced4da;--gray-500: #adb5bd;--gray-600: #6c757d;--gray-700: #495057;--gray-800: #343a40;--gray-900: #212529;--box-shadow: 0 .5rem 1rem rgba(0, 0, 0, .15);--transition: all .2s ease-in-out;--border-radius: .25rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:var(--gray-800);background-color:var(--gray-200);min-height:100vh}a{text-decoration:none;color:var(--primary-color)}a:hover{color:var(--primary-light)}button{cursor:pointer;border:none;border-radius:var(--border-radius);padding:.5rem 1rem;transition:var(--transition);font-size:.9rem}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-light)}.btn-danger{background-color:var(--danger-color);color:#fff}.btn-danger:hover{opacity:.9}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1rem}.card{background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1.5rem;margin-bottom:1.5rem}.text-center{text-align:center}.text-right{text-align:right}.flex{display:flex}.flex-column{flex-direction:column}.flex-between{justify-content:space-between}.flex-center{justify-content:center;align-items:center}.gap-1{gap:1rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.p-1{padding:1rem}.p-2{padding:2rem}input,select,textarea{width:100%;padding:.75rem;margin-bottom:1rem;border:1px solid var(--gray-300);border-radius:var(--border-radius);font-size:1rem}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 .2rem #4361ee40}label{display:block;margin-bottom:.5rem;font-weight:600}.alert{padding:1rem;border-radius:var(--border-radius);margin-bottom:1rem}.alert-success{background-color:#d1e7dd;color:#0f5132;border:1px solid #badbcc}.alert-danger{background-color:#f8d7da;color:#842029;border:1px solid #f5c2c7}.alert-warning{background-color:#fff3cd;color:#664d03;border:1px solid #ffecb5}.admin-layout{display:grid;grid-template-columns:250px 1fr;grid-template-rows:60px 1fr 40px;grid-template-areas:"sidebar header" "sidebar main" "sidebar footer";min-height:100vh}@media (max-width: 768px){.admin-layout{grid-template-columns:1fr;grid-template-rows:60px auto 1fr 40px;grid-template-areas:"header" "sidebar" "main" "footer"}}.header{grid-area:header;background-color:#fff;box-shadow:0 2px 5px #0000001a;padding:0 1.5rem;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.sidebar{grid-area:sidebar;background-color:var(--dark-color);color:#fff;padding:2rem 0;overflow-y:auto}.sidebar-logo{display:flex;align-items:center;justify-content:center;padding:0 1.5rem;margin-bottom:2rem}.sidebar-logo img,.sidebar-logo svg{width:40px;height:40px;margin-right:.75rem}.sidebar-logo h1{font-size:1.25rem;color:#fff}.nav-list{list-style:none}.nav-item{margin-bottom:.25rem}.nav-link{display:flex;align-items:center;padding:.75rem 1.5rem;color:var(--gray-300);transition:var(--transition)}.nav-link:hover,.nav-link.active{background-color:#ffffff1a;color:#fff}.nav-link svg,.nav-link img{width:20px;height:20px;margin-right:.75rem}.main-content{grid-area:main;padding:2rem;overflow-y:auto}.footer{grid-area:footer;background-color:#fff;display:flex;align-items:center;justify-content:center;font-size:.875rem;color:var(--gray-600);border-top:1px solid var(--gray-200)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background-color:#fff;border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--box-shadow);display:flex;align-items:center}.stat-icon{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:1rem}.stat-icon.blue{background-color:#4361ee1a;color:var(--primary-color)}.stat-icon.green{background-color:#4cc9f01a;color:var(--success-color)}.stat-icon.orange{background-color:#f8961e1a;color:var(--warning-color)}.stat-icon.red{background-color:#f725851a;color:var(--danger-color)}.stat-icon svg,.stat-icon img{width:24px;height:24px}.stat-content h3{font-size:1.25rem;margin-bottom:.25rem}.stat-content p{color:var(--gray-600);font-size:.875rem;margin:0}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}thead th{background-color:var(--gray-200);text-align:left;padding:.75rem;font-weight:600}tbody td{padding:.75rem;border-bottom:1px solid var(--gray-200)}tbody tr:hover{background-color:var(--gray-100)}.table-action{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background-color:var(--gray-200);color:var(--gray-700);margin-right:.5rem}.table-action:hover{background-color:var(--primary-color);color:#fff}.badge{display:inline-block;padding:.25rem .5rem;border-radius:50px;font-size:.75rem;font-weight:600}.badge-success{background-color:#4cc9f01a;color:var(--success-color)}.badge-warning{background-color:#f8961e1a;color:var(--warning-color)}.badge-danger{background-color:#f725851a;color:var(--danger-color)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--gray-200);padding:2rem}.login-card{max-width:400px;width:100%;background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:2rem}.login-logo{display:flex;flex-direction:column;align-items:center;margin-bottom:2rem}.login-logo img,.login-logo svg{width:60px;height:60px;margin-bottom:1rem}.calendar-container{background-color:#fff;padding:1.5rem;border-radius:var(--border-radius);box-shadow:var(--box-shadow)}.user-avatar{width:40px;height:40px;border-radius:50%;background-color:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}.mobile-toggle{display:none;background:none;border:none;font-size:1.5rem;color:var(--gray-700);cursor:pointer}@media (max-width: 768px){.mobile-toggle{display:block}.sidebar{display:none}.sidebar.show{display:block}}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-header{padding:1rem 1.5rem;border-bottom:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between}.modal-body{padding:1.5rem}.modal-footer{padding:1rem 1.5rem;border-top:1px solid var(--gray-200);display:flex;justify-content:flex-end;gap:.5rem}