:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --text: #243447;
  --muted: #5f6f82;
  --primary: #2f66f3;
  --primary-hover: #1f51d6;
  --border: #d9e1ec;
  --focus: #7ca4ff;
  --shadow: 0 14px 35px rgba(18, 38, 63, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-image: url('../IMAGENES/fondo.jpeg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.carta {
  width: 90%;
  max-width: 500px;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  background-color: white;
  text-align: center;
  margin: 40px auto;
}

.cartita {
  width: 100%;
  border-radius: 10px;
  margin: auto;
}

.carta img {
  width: 150px;
  height: auto;
  margin-bottom: 15px;
  border-radius: 50%;
}

.titulo {
  font-size: 26px;
  color: #333;
  margin-bottom: 20px;
  font-weight: bold;
}

.carta label {
  display: block;
  margin-top: 25px;
  color: #555;
  font-size: 18px;
  text-align: left;
}

.carta input {
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

.carta input:focus {
  border-color: #007BFF;
  outline: none;
}

.carta button {
  display: block;
  padding: 12px;
  width: 100%;
  margin-top: 30px;
  font-size: 18px;
  border: none;
  border-radius: 5px;
  background-color: #007BFF;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.carta button:hover {
  background-color: #0056b3;
}

.form {
  display: grid;
  gap: 1rem;
}

.form__group {
  display: grid;
  gap: 0.45rem;
}


input,
select,
button {
  width: 100%;
  font: inherit;
  border-radius: 10px;
}

input,
select {
  border: 1px solid var(--border);
  padding: 0.72rem 0.9rem;
  background-color: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 35%, transparent);
}


.form-footer {
  margin-top: 20px;
}

/* --- Ajustes para móviles --- */
@media (max-width: 480px) {
  .carta {
    padding: 20px;
    margin: 20px auto;
  }

  .carta img {
    width: 120px;
  }

  .titulo {
    font-size: 22px;
  }

  .carta label {
    font-size: 16px;
  }

  .carta input,
  .carta button {
    font-size: 16px;
  }
}