*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body{
  font-family: system-ui, sans-serif;
  background: #eaeaea;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Banner superior */
nav{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 100px;
  color: #fff;
  background: rgba(0, 0, 0, 0.8);
}

.logo {
  display: flex;
  align-items: center;
  font-size: 25px;
  color: #fff;
  gap: 10px;
}

.logo img {
  height: 35px;
  width: auto;
}

/* Contenedor */
.container{
  max-width: 700px;
  margin: 60px auto;
  text-align: center;
  padding: 20px;
  flex: 1;
}

.title{
  font-size: 32px;
  margin-bottom: 10px;
  color: #222;
}

.subtitle{
  font-size: 16px;
  margin-bottom: 40px;
  color: #555;
}

/* Cotizador */
.cotizador{
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

label{
  display: block;
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: bold;
  color: #003366;
}

/* Slider personalizado */
input[type=range]{
  width: 100%;
  height: 6px;
  border-radius: 5px;
  background: #ccc;
  outline: none;
  appearance: none;
}

input[type=range]::-webkit-slider-thumb{
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #003366;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 0 4px rgba(0,0,0,0.3);
}

.valores{
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 14px;
  color: #555;
}

.resultado{
  margin-top: 30px;
  font-size: 18px;
  color: #222;
}

.resultado strong{
  font-size: 22px;
  color: #003366;
}

/* Footer */
footer {
  background-color: #00336667;
  color: rgb(153, 153, 153);
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
}