.pc-power-calculator-wrapper {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.pc-power-calculator-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pc-calc-field {
    display: flex;
    flex-direction: column;
}

.pc-calc-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 600px) {
    .pc-calc-field-row {
        grid-template-columns: 1fr;
    }
}

.pc-calc-field label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.pc-calc-field .required {
    color: #d63638;
}

.pc-calc-field .optional {
    font-weight: normal;
    color: #666;
    font-size: 0.9em;
}

.pc-calc-field .either-or {
    font-weight: normal;
    color: #666;
    font-size: 0.85em;
    font-style: italic;
    display: block;
    margin-top: 4px;
}

.pc-calc-field input[type="text"],
.pc-calc-field input[type="email"],
.pc-calc-field input[type="number"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    width: 100%;
    box-sizing: border-box;
}

.pc-calc-field input[type="text"]:focus,
.pc-calc-field input[type="email"]:focus,
.pc-calc-field input[type="number"]:focus {
    outline: none;
    border-color: #2271b1;
    box-shadow: 0 0 0 1px #2271b1;
}

.pc-calc-submit {
    background: #2271b1;
    color: #fff;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.pc-calc-submit:hover {
    background: #135e96;
}

.pc-calc-submit:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.pc-power-calculator-results {
    margin-top: 30px;
    padding: 20px;
    background: #f0f6fc;
    border: 1px solid #2271b1;
    border-radius: 4px;
}

.pc-power-calculator-results h3 {
    margin-top: 0;
    color: #2271b1;
}

.pc-result-item {
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
    font-size: 16px;
}

.pc-result-item:last-child {
    border-bottom: none;
}

.pc-result-item strong {
    display: inline-block;
    min-width: 200px;
    color: #333;
}

.pc-power-calculator-error {
    margin-top: 20px;
    padding: 15px;
    background: #fcf0f1;
    border: 1px solid #d63638;
    border-radius: 4px;
    color: #d63638;
}

.pc-power-calculator-loading {
    text-align: center;
    padding: 20px;
    color: #666;
}