/* ===========================
   CSS dùng chung cho tất cả trang
   =========================== */
body {
  margin: 0;
  font-family: Arial, sans-serif;
}
header {
  background: #FFCADA;
  color: white;
  text-align: center;
  padding: 20px;
}
nav {
  background: #FFD4E2;
  text-align: center;
  padding: 10px;
}
nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}
nav a:hover {
  text-decoration: underline;
}
footer {
  background: #FFCADA;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 20px;
}

/* ===========================
   Từ index.html
   =========================== */
.banner img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.card {
  text-align: center;
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
}
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.card h3 {
  margin: 10px 0;
}

/* ===========================
   Từ about.html
   =========================== */
.container {
  max-width: 800px;  /* riêng cho trang About */
  margin: auto;
  padding: 20px;
}
.profile {
  display: flex;
  gap: 20px;
  align-items: center;
}
.profile img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 50%;
}
.media {
  margin-top: 20px;
}

/* ===========================
   Từ dia-danh.html
   =========================== */
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
}
.card p {
  padding: 0 10px;
}

/* ===========================
   Từ amthuc.html
   =========================== */
.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  border: 1px solid #ccc;
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
}
.card p {
  padding: 0 10px;
}

/* ===========================
   Contact form
   =========================== */
form {
  max-width: 600px;
  margin: auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: #fdfdfd;
}

form label {
  display: block;
  margin: 10px 0 5px;
  font-weight: bold;
}

form input[type="text"],
form input[type="email"],
form textarea,
form select {
  width: 100%;
  padding: 8px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

form input[type="checkbox"],
form input[type="radio"] {
  margin-right: 8px;
}

form button {
  background: #FFCADA;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 16px;
}
form button:hover {
  background: #FFD4E2;
}