.center-registration {
    max-width: 1400px;
    margin: 2rem auto;
}

.center-registration .registration-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    border-radius: 12px;
    background: linear-gradient(to right, var(--primary), #1a3cb3);
    color: white;
}

.center-registration .registration-header h1 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.center-registration .registration-header p {
    opacity: 0.9;
}

.center-registration .registration-card {
    border-radius: 15px;
    margin-bottom: 2rem;
    background: white;
    transition: transform 0.3s;
    overflow: hidden;
    border: none;
}

.center-registration .registration-card .card-header {
    background: linear-gradient(to right, var(--primary), #1a3cb3);
    color: white;
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1.3rem;
    border-bottom: 0;
}

.center-registration .registration-card .card-header i {
    margin-right: 10px;
    color: var(--secondary);
}

.center-registration .registration-card .card-body {
    padding: 2rem;
}

.center-registration .section-title {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--secondary);
    display: inline-block;
}

.center-registration .form-label {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.center-registration .form-control,
.center-registration .form-select {
    padding: 0.85rem 1.2rem;
    border-radius: 8px;
    border: 1px solid #ddd;
    font-size: 1rem;
    transition: all 0.3s;
}

.center-registration .form-control:focus,
.center-registration .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(1, 22, 90, 0.15);
}

.center-registration .input-group-text {
    background-color: var(--primary);
    color: white;
    border-radius: 8px 0 0 8px;
    border: none;
}

.center-registration .form-section {
    background-color: var();
    border-radius: 12px;
    padding: 1.8rem;
    margin-bottom: 1.8rem;
}

.center-registration .image-preview {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 1rem;
    margin-top: 0.8rem;
    text-align: center;
    background-color: #f9f9f9;
}

/* Responsive styles */
@media (max-width: 992px) {

    .center-registration .registration-card .card-body,
    .center-registration .form-section {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {

    .center-registration .registration-card .card-body,
    .center-registration .form-section {
        padding: 1.2rem;
    }

    .center-registration .registration-header h1 {
        font-size: 1.8rem;
    }
}