.ac-calculator {
    max-width: 800px;
    background: #fff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.range-bubble {
    position: absolute;
    background: #0d6efd;
    color: white;
    padding: 2px 10px;
    border-radius: 15px;
    font-size: 0.9em;
    top: -30px;
    transform: translateX(-50%);
    pointer-events: none;
}

.btn-group .btn {
    flex: 1;
    position: relative;
}

.btn-group .btn.active {
    background: #0d6efd;
    color: white !important;
}

.result-card {
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

/* Add these new styles */
.btn-group {
    margin-bottom: 1rem;
}

.btn-group .btn {
    border: 2px solid #dee2e6;
    transition: all 0.3s ease;
}

.btn-group .btn.active {
    border-color: #0d6efd;
    background: #0d6efd;
    color: white !important;
    z-index: 1;
}

/* Existing styles... */