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

/* BASE */
body {
  background: linear-gradient(to bottom, #cfe8ff, #88b7ff);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  color: #1f2937;
}

/* HEADER */
header {
  text-align: center;
  padding: 30px 20px 10px;
}

h1 {
  font-size: 2.3rem;
  color: #073e7b;
  font-weight: 700;
}

/* CARD CENTRAL */
.container {
  background: #ffffffee;
  width: 92%;
  max-width: 480px;
  margin: 25px auto;
  padding: 30px;
  border-radius: 22px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(6px);
  animation: fadeIn 0.6s ease;
}

/* FORM */
form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

label {
  font-size: 1.1rem;
  font-weight: 600;
}

input[type="number"] {
  padding: 12px;
  border: 1px solid #c5d3e6;
  border-radius: 10px;
  font-size: 1rem;
  outline: none;
  transition: 0.25s;
}

input[type="number"]:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 4px #3b82f6aa;
}

/* SEXO */
fieldset {
  border: none;
  display: flex;
  gap: 20px;
  align-items: center;
}

.radio {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

/* BOTÃO */
button {
  padding: 14px;
  background: #2563eb;
  border: none;
  color: white;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #1e4ec7;
  transform: scale(1.03);
}

/* RESULTADO */
#resultado {
  margin-top: 25px;
  text-align: center;
}

#res {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 15px;
}

/* FOTO CENTRALIZADA */
#imgPessoa {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  display: none;
  margin: 0 auto;            /* CENTRALIZA */
  margin-top: 20px;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
  animation: fadeIn 0.7s ease;
}

/* ANIMAÇÃO */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* RODAPÉ */
footer {
  text-align: center;
  padding: 20px;
  color: #073e7b;
  font-size: 0.95rem;
  margin-top: auto;
  font-style: italic;
}

/* MOBILE */
@media (max-width: 480px) {
  h1 {
    font-size: 1.9rem;
  }

  #imgPessoa {
    width: 190px;
    height: 190px;
  }
}