/* Professional Payroll System Styles */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border: none;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #fff !important;
    background-color: rgba(255,255,255,0.1);
    border-radius: 5px;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    border: none;
    font-weight: bold;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 25px;
    padding: 10px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border: none;
    border-radius: 25px;
    padding: 10px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    border: none;
    border-radius: 25px;
    padding: 8px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 152, 0, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
    border: none;
    border-radius: 25px;
    padding: 8px 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(244, 67, 54, 0.4);
}

.btn-secondary {
    background: #6c757d;
    border: none;
    border-radius: 25px;
    padding: 10px 30px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.4);
}

.table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.table thead th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

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

.alert {
    border-radius: 10px;
    border: none;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.h1, .h2, .h3, .h4, .h5, .h6, h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #2c3e50;
}

.container {
    max-width: 1200px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .card {
        margin-bottom: 15px;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .table-responsive {
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }
}

/* Dashboard specific styles */
.dashboard-card {
    text-align: center;
    padding: 30px 20px;
}

.dashboard-card h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #667eea;
}

.dashboard-card p {
    font-size: 1.1rem;
    color: #6c757d;
}

/* Form sections */
.form-section {
    background: white;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.form-section h4 {
    color: #667eea;
    margin-bottom: 20px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}