.main-container-elec {
    width: 100%;
    max-width: 450px;
    margin: auto;
    color: #000000;
}
.main-title-elec {
    text-align: center;
    color: #27ae60;
    margin-bottom: 20px;
}
.calculator-card-elec {
    background-color: #e0e0e0;
    border: 2px solid #27ae60;
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.card-header-elec {
    color: #27ae60;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 2px solid #27ae60;
    padding-bottom: 10px;
    font-size: 1.5rem;
}
.input-group-elec {
    margin-bottom: 15px;
}
.input-group-elec label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    color: #000;
}
.input-group-elec input {
    width: 100%;
    padding: 12px;
    border: 1px solid #bdc3c7;
    border-radius: 8px;
    font-size: 1rem;
    color: #000;
    font-weight: bold;
    background: #fff;
}
.button-container-elec {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}
.btn-calculate-elec {
    flex: 1;
    padding: 12px;
    background-color: #27ae60;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
}
.btn-reset-elec {
    flex: 1;
    padding: 12px;
    background-color: #7f8c8d;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
}
.result-display-elec {
    margin-top: 15px;
    padding: 12px;
    background-color: white;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    display: none;
    border-left: 5px solid #27ae60;
    color: #000;
}
.formula-section-elec {
    background: #fff;
    padding: 15px;
    border-radius: 10px;
    border: 1px dashed #27ae60;
    font-size: 0.9rem;
}
.formula-section-elec h3 {
    margin: 0 0 10px 0;
    color: #27ae60;
}
.highlight-elec {
    color: #27ae60;
    font-size: 1.2rem;
}