/* Custom styles for the invoice form */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #333;
}

.form-container {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e1e5eb;
}

.form-header {
    background: linear-gradient(135deg, #0d6efd, #0b5ed7);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.form-header h2 {
    margin: 0;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.form-header p {
    margin: 5px 0 0;
    opacity: 0.9;
    font-size: 1rem;
}

.field-group {
    margin-bottom: 25px;
    padding: 20px;
    border: 1px solid #e1e5eb;
    border-radius: 8px;
    background-color: #fafbff;
    transition: all 0.3s ease;
}

.field-group:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-color: #d0d7e4;
}

.field-group legend {
    font-weight: 600;
    color: #0d6efd;
    width: auto;
    padding: 0 12px;
    margin-bottom: 0;
    font-size: 1.1rem;
    background-color: white;
    border-radius: 4px;
}

.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 6px;
}

.form-control, .form-select {
    border: 1px solid #ced4da;
    border-radius: 6px;
    padding: 10px 12px;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.form-check-input:checked {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #b0e0e6;
    color: #0c5460;
    border-radius: 6px;
    padding: 12px 15px;
}

.submit-btn {
    background: linear-gradient(135deg, #28a745, #218838);
    border: none;
    color: white;
    padding: 12px 35px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #218838, #1e7e34);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

.submit-btn:active {
    transform: translateY(0);
}

.success-container {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 40px;
    margin: 30px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    border: 1px solid #e1e5eb;
}

.success-header {
    background: linear-gradient(135deg, #28a745, #218838);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.check-icon {
    font-size: 5rem;
    color: #28a745;
    margin: 25px 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.alert-info {
    background-color: #cce7ff;
    border-color: #99d6ff;
    color: #0066cc;
    border-radius: 6px;
    padding: 15px;
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, #0d6efd, #0b5ed7);
    border: none;
    padding: 10px 25px;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0b5ed7, #0a58ca);
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .form-container {
        padding: 20px;
        margin: 15px 0;
    }
    
    .field-group {
        padding: 15px;
    }
    
    .submit-btn {
        width: 100%;
        padding: 12px;
    }
}