.calculator-wrapper {
    max-width: 500px !important;
    margin: 40px auto;
}

.form-card h2, 
.form-card p {
    text-align: center;
}

.form-group {
    text-align: center;
}

.form-group select {
    text-align: center;
    text-align-last: center; 
    width: 100%;
}

.result-box {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    align-items: center; 
    justify-content: center;
}

.result-label {
    font-size: 0.9rem;
    color: #ccc;
    letter-spacing: 2px;
    margin-bottom: 5px;
    text-align: center;
    display: block;
}

.result-year {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-color);
    text-align: center;
    line-height: 1;
    text-shadow: 0 0 20px rgba(102, 252, 241, 0.4);
}

#btn-calc {
    margin-top: 10px;
    width: 100%;
}