body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: #f5f7fa;
  color: #333;
}
.admin-header {
  background: #1d5c92;
  color: #fff;
  padding: 20px;
  text-align: center;
}
.admin-header nav a {
  color: #fff;
  margin: 0 10px;
  text-decoration: none;
  font-weight: 600;
}
.admin-main {
  max-width: 600px;
  margin: 40px auto;
  background: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
form label {
  display: block;
  margin-bottom: 15px;
}
input[type=text], input[type=password], input[type=file], textarea {
  width: 100%;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}
button {
  background: #1d5c92;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
}
button:hover {
  background: #164d7a;
}
.error {
  color: #c0392b;
  margin-bottom: 15px;
}
.message {
  color: #27ae60;
  margin-bottom: 15px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

@media (max-width: 1024px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

.media-item {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.media-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.media-item img,
.media-item video {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

.media-item form {
  padding: 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.media-item form .delete {
  background: #c0392b;
}

.media-item form .delete:hover {
  background: #a83221;
}