/* Reset e acessibilidade básica */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Merriweather', 'Georgia', serif;
  background-color: #000;
  color: #fff;
  line-height: 1.6;
  padding: 20px;
}

/* Header */
header {
  text-align: center;
  padding: 40px 0;
  background-color: #111;
  border-bottom: 1px solid #333;
}

header h1 {
  font-size: 2.4rem;
  letter-spacing: 2px;
  margin-bottom: 10px;
  text-transform: uppercase;
}

/* Navegação */
nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  border-bottom: 2px solid transparent;
  transition: border 0.3s;
}

nav a:hover,
nav a:focus {
  border-bottom: 2px solid #fff;
  outline: none;
}

/* Conteúdo principal */
main {
  max-width: 800px;
  margin: auto;
  padding: 40px 20px;
}

/* Títulos e textos */
h1, h2 {
  margin-bottom: 20px;
  font-weight: 700;
}

p {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

/* Formulário */
form label {
  display: block;
  margin: 15px 0 5px;
}

form input, form textarea {
  width: 100%;
  padding: 10px;
  background-color: #111;
  color: #fff;
  border: 1px solid #444;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

form input:focus, form textarea:focus {
  border-color: #25D366;
  outline: none;
}

form button {
  margin-top: 20px;
  background-color: #25D366;
  color: white;
  padding: 12px 20px;
  font-size: 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease;
}

form button:hover,
form button:focus {
  background-color: #1ca34f;
  outline: none;
}

/* Imagens */
img {
  border: 1px solid #333;
  border-radius: 8px;
  max-width: 100%;
  height: auto;
  display: block;
}

/* Botão flutuante WhatsApp */
#whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: #25D366;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  transition: transform 0.3s ease;
}

#whatsapp-float:hover,
#whatsapp-float:focus {
  transform: scale(1.1);
  outline: none;
}

#whatsapp-float img {
  width: 28px;
  height: 28px;
}

/* Linha de mira sutil */
.mira {
  width: 40px;
  height: 2px;
  background: white;
  margin: 20px auto;
  opacity: 0.4;
}

/* Rodapé */
footer {
  text-align: center;
  padding: 30px;
  background-color: #111;
  border-top: 1px solid #333;
  font-size: 0.9rem;
  opacity: 0.7;
}

/* Responsividade */
@media (max-width: 600px) {
  nav ul {
    flex-direction: column;
    gap: 15px;
  }

  main {
    padding: 20px 10px;
  }

  form {
    padding: 0;
  }

  img {
    width: 100%;
    height: auto;
  }
}