/* Chung*/
body {
  font-family: "Segoe UI", Tahoma, Verdana, sans-serif;
  line-height: 1.6;
  margin: 0;
  background-color: #fffaf0;
}

/* Header & Nav */
header {
  background-color: #d32f2f;
  color: white;
  padding: 20px 0;
  text-align: center;
}

nav {
  background: #2e7d32;
  padding: 10px;
  position: sticky;
  top: 0;
  z-index: 1000;
}

nav ul {
  list-style: none;
  text-align: center;
  margin: 0;
  padding: 0;
}

nav ul li {
  display: inline;
  margin: 0 15px;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

/* Layout chính */
.container {
  width: 80%;
  margin: auto;
  padding: 20px;
}

.banner {
  width: 100%;
  height: 700px;
  background: url("./img/banner.jpg") center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}

footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 30px;
}