* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #ff3333 0%, #ff9933 100%);
    min-height: 100vh;
    padding-bottom: 60px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #0a42f4 0%, #ff3333 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 24px;
}

.header h1 a {
    color: white;
    text-decoration: none;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Navigation */
.nav-menu {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 0;
}

.nav-menu ul {
    list-style: none;
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    display: block;
    padding: 15px 25px;
    color: #495057;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.nav-menu a:hover {
    color: #667eea;
    background: #f8f9fa;
}

.nav-menu a.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 20px auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    overflow: hidden;
}

.card {
    padding: 30px;
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #495057;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ced4da;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s;
	font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-warning {
    background: #ffc107;
    color: #000;
}

.btn-logout {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid white;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.3);
}

/* Table */
.table-container {
    overflow-x: auto;
    margin-top: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
    position: sticky;
    top: 0;
}

tbody tr:hover {
    background: #f8f9fa;
}

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

.status-approved {
    background: #d4edda;
    color: #155724;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24;
}

.status-cancelled {
    background: #e2e3e5;
    color: #383d41;
}

/* Filters */
.filters {
    padding: 20px 30px;
    background: #f8f9fa;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: flex-end;
    border-bottom: 2px solid #e9ecef;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 20px;
    border-top: 2px solid #e9ecef;
}

.pagination button {
    padding: 8px 16px;
    border: 2px solid #667eea;
    background: white;
    color: #667eea;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
}

.pagination button:hover:not(:disabled) {
    background: #667eea;
    color: white;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .page-info {
    font-weight: 600;
    color: #495057;
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.btn-action {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-approve {
    background: #28a745;
    color: white;
}

.btn-reject {
    background: #dc3545;
    color: white;
}

/* Loading & Empty */
.loading, .empty {
    text-align: center;
    padding: 40px;
    color: #6c757d;
}

.loading {
    color: #667eea;
}

/* Alert */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 8px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 15px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.close-modal {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: #6c757d;
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: white;
    padding: 15px;
    text-align: center;
    box-shadow: 0 -2px 4px rgba(0,0,0,0.1);
    font-size: 14px;
    color: #6c757d;
}

/* Report symbols */
.leave-symbol {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    margin: 2px;
}

.symbol-P { background: #ffc107; color: #000; }
.symbol-NP { background: #ffeb3b; color: #000; }
.symbol-NN { background: #fff9c4; color: #000; }
.symbol-KL { background: #f44336; color: white; }
.symbol-LTX { background: #2196f3; color: white; }
.symbol-NKLBH { background: #ff9800; color: white; }
.symbol-CD { background: #9c27b0; color: white; }
.symbol-NCN { background: #e91e63; color: white; }
.symbol-LT { background: #4caf50; color: white; }
.symbol-LBN { background: #00bcd4; color: white; }
.symbol-QCK { background: #607d8b; color: white; }

.weekend {
    background-color: #cce5ff !important;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .nav-menu ul {
        flex-wrap: wrap;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
    }
}