body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #ffffff;
  color: #111;
  transition: background-color 0.3s, color 0.3s;
}
body.dark-mode { background-color: #121212; color: #e0e0e0; }
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 999;
}
body.dark-mode .navbar { background: rgba(30, 30, 30, 0.9); }
.navbar-container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { display: flex; align-items: center; gap: 0.5rem; }
.logo img { height: 40px; }
#nav-links { display: flex; gap: 1rem; }
#nav-links a { text-decoration: none; color: inherit; font-weight: 500; transition: color 0.2s; }
#nav-links a:hover { color: #00A651; }
.nav-right button {
  background: none; border: none; font-size: 1.3rem; cursor: pointer; margin-left: 1rem; transition: transform 0.2s;
}
.nav-right button:hover { transform: scale(1.1); }
.menu-toggle { display: none; }
.hero { text-align: center; padding: 8rem 1rem; background: linear-gradient(180deg, #f4f4f4 0%, #ffffff 100%); }
body.dark-mode .hero { background: linear-gradient(180deg, #1a1a1a 0%, #121212 100%); }
.hero h1 { font-size: 2.8rem; margin-bottom: 1rem; }
.hero p { font-size: 1.2rem; margin-bottom: 2rem; }
.cta { background-color: #00A651; color: #fff; padding: 0.8rem 1.8rem; border-radius: 5px; text-decoration: none; transition: background 0.3s; }
.cta:hover { background-color: #007d3d; }
footer { text-align: center; padding: 1.5rem; background-color: #f8f8f8; }
body.dark-mode footer { background-color: #181818; }
@media (max-width: 768px) {
  #nav-links { display: none; flex-direction: column; background: rgba(255,255,255,0.95); position: absolute; top: 70px; right: 10px; padding: 1rem; border-radius: 8px; }
  body.dark-mode #nav-links { background: rgba(20,20,20,0.95); }
  #nav-links.active { display: flex; }
  .menu-toggle { display: inline-block; }
}
/* Admin Panel Styles */
.admin-container { max-width: 800px; margin: 3rem auto; background: rgba(255, 255, 255, 0.9); padding: 2rem; border-radius: 10px; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); }
body.dark-mode .admin-container { background: rgba(30,30,30,0.95); color: #f4f4f4; }
.admin-container h1, .admin-container h2 { text-align: center; color: #00A651; }
.admin-container form { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
.admin-container input, .admin-container textarea { padding: 0.7rem; border: 1px solid #ccc; border-radius: 5px; font-size: 1rem; }
body.dark-mode .admin-container input, body.dark-mode .admin-container textarea { background-color: #222; color: #fff; border: 1px solid #444; }
.admin-container button { background-color: #00A651; color: white; padding: 0.7rem 1.2rem; border: none; border-radius: 5px; font-size: 1rem; cursor: pointer; transition: background-color 0.3s; }
.admin-container button:hover { background-color: #007d3d; }
.admin-container ul { list-style: none; padding: 0; }
.admin-container li { background-color: #f4f4f4; margin-bottom: 0.5rem; padding: 0.7rem; border-radius: 5px; transition: background-color 0.3s; }
body.dark-mode .admin-container li { background-color: #1e1e1e; }