body {
    background-color: #f0f2f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.registration-container {
    max-width: 800px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    overflow: hidden;
}
.registration-header {
    background: linear-gradient(90deg, #2ecc71, #27ae60);
    color: white;
    padding: 1.5rem;
    text-align: center;
}
.registration-header h2 {
    margin: 0;
    font-weight: 600;
}
.form-section {
    padding: 2rem;
}
.form-section h5 {
    font-weight: 600;
    color: #343a40;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #2ecc71;
    padding-bottom: 0.5rem;
}
.input-group-text {
    width: 42px;
    justify-content: center;
}
.required:after {
    content: " *";
    color: #e74c3c;
}
#map {
    height: 350px;
    width: 100%;
    border-radius: 5px;
    border: 1px solid #ddd;
}
.location-help {
    font-size: 0.9rem;
    color: #6c757d;
}

@media (max-width: 768px) {
    .registration-container {
        margin: 1rem;
        padding: 0;
    }
    .form-section {
        padding: 1.5rem;
    }
    .registration-header h2 {
        font-size: 1.5rem;
    }
    .row .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    #map {
        height: 250px;
    }
    .btn-lg {
        padding: 0.8rem 1rem;
        font-size: 1rem;
    }
}