:root {
      --azul: #003a98;
      --amarillo: #ffd703;
      --gris-claro: #f9f9f9;
      --gris: #e0e0e0;
      --blanco: #ffffff;
      --negro: #222;
    }

.main-content-calculator {
    /* margin-top: 15vh; */
    /* flex: 1; */
    /* height: 50%; */
    margin: 15vh auto; 
    max-width: 80vw;
    background-color: var(--blanco);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    border-top: 8px solid var(--amarillo);
    
    transition: all 0.3s ease;
}

    .main-content-calculator:hover {
      transform: translateY(-3px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    }

    h1 {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  text-align: center;
  color: var(--negro);
  font-size: 2rem;
  /* font-weight: 700; */
  line-height: 1.3;
  /* margin: 60px auto 30px; */
  /* letter-spacing: 1px; */

  /* sutil para profundidad sin recargar */
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);

    }

    h1 span {
  display: block;
  color: var(--azul);
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 2px;
    }

    label {
      display: block;
      margin-top: 18px;
      font-weight: 600;
      color: var(--negro);
    }

    .input_calc {
      width: 100%;
      padding: 10px;
      margin-top: 6px;
      border-radius: 8px;
      border: 1px solid var(--gris);
      font-size: 15px;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .input_calc:focus {
      outline: none;
      border-color: var(--azul);
      box-shadow: 0 0 5px rgba(0, 58, 152, 0.3);
    }

    .main-content-calculator > button {
      margin-top: 25px;
      width: 100%;
      padding: 12px;
      background: var(--azul);
      color: var(--blanco);
      border: none;
      border-radius: 8px;
      font-size: 16px;
      font-weight: bold;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .main-content-calculator > button:hover {
      background: #002b75;
      transform: scale(1.02);
    }

    .result {
      margin-top: 25px;
      padding: 18px;
      background: var(--gris-claro);
      border-left: 6px solid var(--amarillo);
      border-radius: 8px;
      font-size: 16px;
      line-height: 1.6;
      color: var(--negro);
    }

    .result strong {
      color: var(--azul);
    }

    .footer_calc {
      text-align: center;
      margin-top: 25px;
      color: #666;
      font-size: 14px;
    }
@media (width > 720px){
    .main-content-calculator{
        width: 70vh;
    }
}