body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f4f4f4;
  color: #333;
}

header {
  background: linear-gradient(135deg, #333, #555);
  color: #fff;
  text-align: center;
  padding: 20px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

.nav-menu {
  list-style: none;
  padding: 15px 20px;
  margin: 0;
  background: #444;
  display: flex;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav-menu li {
  position: relative;
}

.nav-menu li a {
  display: block;
  padding: 15px 20px;
  color: #fff;
  text-decoration: none;
  font-size: 1.1rem;
  transition: color 0.2s, background 0.2s;
}

.nav-menu li a:hover, .nav-menu li a.active {
  background: #555;
  color: #007BFF;
}

.submenu {
  display: none;
  position: absolute;
  background: #555;
  list-style: none;
  padding: 0;
  min-width: 200px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  z-index: 1000;
}

.nav-menu li:hover .submenu {
  display: block;
}

.submenu li a {
  padding: 10px 15px;
  font-size: 1rem;
  color: #fff;
}

.submenu li a:hover {
  background: #666;
  color: #007BFF;
}

.container {
  max-width: 1000px;
  margin: 20px auto;
  padding: 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.login-container, .admin-form-container, .contact-container {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  max-width: 500px;
  margin: 20px auto;
}

.login-container h2, .admin-form-container h2, .contact-container h3 {
  color: #333;
  text-align: center;
  margin-bottom: 20px;
}

.login-container input, .admin-form-container input, .admin-form-container textarea, .admin-form-container select, .contact-form input, .contact-form textarea {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border: 1px solid #ccc;
  border-radius: 8px;
  box-sizing: border-box;
  font-size: 0.95em;
  transition: border-color 0.2s;
}

.login-container input:focus, .admin-form-container input:focus, .admin-form-container textarea:focus, .admin-form-container select:focus, .contact-form input:focus, .contact-form textarea:focus {
  border-color: #007BFF;
  outline: none;
}

.admin-form-container select {
  padding: 8px;
}

.btn {
  background: #007BFF;
  color: #fff;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1em;
  display: inline-block;
  text-align: center;
  transition: background 0.2s;
}

.btn:hover {
  background: #0056b3;
}

.btn.danger {
  background: #dc3545;
}

.btn.danger:hover {
  background: #b02a37;
}

.btn-group {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.error {
  color: #dc3545;
  background: #f8d7da;
  padding: 10px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 15px;
  font-size: 0.9em;
}

.content-card {
  background: #fff;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s;
}

.content-card:hover {
  transform: translateY(-2px);
}

.content-card h3 {
  color: #000;
  font-size: 1.4em;
  margin: 0 0 10px;
}

.content-card .category {
  color: #777;
  font-size: 0.9em;
  margin-bottom: 10px;
  text-transform: capitalize;
}

.content-card p {
  color: #000;
  font-size: 0.95em;
  line-height: 1.6;
}

.content-card img {
  width: 400px;
  height: 500px;
  display: block;
  margin: 10px 0;
  object-fit: cover;
  border-radius: 8px;
}

.content-card video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 10px 0;
  border-radius: 8px;
}

.social-links {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-bottom: 20px;
}

.social-link {
  color: #333;
  text-decoration: none;
  font-size: 1.1rem;
}

.social-link:hover {
  color: #007BFF;
}

footer {
  text-align: center;
  padding: 20px;
  background: #eee;
  border-top: 1px solid #ddd;
  font-size: 0.9em;
  color: #555;
  width: 100%;
}

@media (max-width: 600px) {
  .container, .login-container, .admin-form-container, .contact-container, .content-card {
    max-width: 90%;
    padding: 15px;
  }
  .content-card img {
    width: 100%;
    height: auto;
  }
  .nav-menu {
    flex-direction: column;
    padding: 10px;
  }
  .nav-menu li a {
    padding: 10px;
    font-size: 0.9em;
  }
  .submenu {
    position: static;
    background: #666;
    min-width: 100%;
  }
  .submenu li a {
    padding: 8px 10px;
    font-size: 0.9em;
  }
  input[type="text"],
  input[type="password"],
  textarea,
  select,
  input[type="file"],
  .btn {
    padding: 10px;
    font-size: 0.9em;
  }
}