/* ===== Seção ===== */
.secao-calculadora {
    padding: 60px 0;
    background: #f8fafc;
}

/* ===== Card ===== */
.calculadora-card {
    background: #ffffff;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    border-radius: 14px;
    box-shadow: 0 6px 25px rgba(0,0,0,0.06);
}

/* ===== Título ===== */
.calculadora-card h2 {
    text-align: center;
    color: #2f8fb3;
    margin-bottom: 8px;
    font-size: 28px;
}

.desc {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

/* ===== Grid ===== */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.campo {
    margin-bottom: 20px;
}

.campo label {
    font-weight: 600;
    display: block;
    margin-bottom: 6px;
}

.campo input {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ddd;
    transition: 0.3s;
}

.campo input:focus {
    border-color: #2f8fb3;
    outline: none;
    box-shadow: 0 0 0 2px rgba(47,143,179,0.2);
}

/* ===== Botão ===== */
.btn-calcular {
    width: 100%;
    padding: 14px;
    background: linear-gradient(90deg, #2f8fb3, #1d4ed8);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.btn-calcular:hover {
    opacity: 0.9;
}

/* ===== Resultado ===== */
.resultado {
    margin-top: 25px;
    padding: 20px;
    background: #eef8fc;
    border-radius: 10px;
    font-size: 15px;
    line-height: 1.6;
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .calculadora-card {
        padding: 25px;
    }
}