* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #0f0f0f;
  color: #fff;
}
header.hero {
  text-align: center;
  padding: 4rem 2rem 2rem;
  background-color: #121212;
}
.logo {
  max-width: 220px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}
nav {
  margin-top: 1rem;
}
nav a {
  margin: 0 1rem;
  color: #00faff;
  text-decoration: none;
  font-weight: bold;
}
section {
  padding: 3rem 1rem;
  max-width: 960px;
  margin: auto;
}
.gallery {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.gallery img {
  width: 220px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 10px #00faff;
}
form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 400px;
  margin: auto;
}
input, textarea {
  padding: 1rem;
  border-radius: 6px;
  border: none;
  font-size: 1rem;
}
button {
  background-color: #00faff;
  color: #000;
  font-weight: bold;
  border: none;
  padding: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}
button:hover {
  background-color: #0df;
}
footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  background-color: #121212;
  border-top: 1px solid #222;
}