.card {
    border: none;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.card-header {
    background: none;
    border-bottom: none;
    padding: 20px 20px 0;
}

.nav-tabs {
    border-bottom: 2px solid #f3f3f3;
    margin-bottom: 30px;
}

.nav-tabs .nav-link {
    color: #777;
    font-size: 16px;
    padding: 15px 25px;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.nav-tabs .nav-link.active {
    color: #2f4f93;
    border-bottom: 2px solid #2f4f93;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: #2f4f93;
}

.card-body {
    padding: 30px;
}

.tab-content {
    padding: 20px 0;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

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

/* Form styling */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 15px;
}

textarea {
    height: 120px;
    resize: none;
}

/* Required field styling */
input:required,
select:required,
textarea:required {
    border-left: 3px solid #2f4f93;
}

/* Button spacing */
.theme-btn {
    margin: 5px;
}

/* Checkbox and radio styling */
input[type="checkbox"],
input[type="radio"] {
    margin-right: 8px;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .nav-tabs .nav-link {
        padding: 10px 15px;
        font-size: 14px;
    }
}

/* Validation styles */
.was-validated .form-control:invalid {
    border-color: #dc3545;
}

.was-validated .form-control:valid {
    border-color: #28a745;
}