* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  color: #222;
  line-height: 1.6;
  background: #f8f8f8;
}

.hero {
  background: linear-gradient(135deg, #1b1f3b, #3d5a80);
  color: white;
  min-height: 100vh;
  padding: 20px;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
}

.logo {
  font-size: 1.4rem;
  font-weight: bold;
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  color: white;
  text-decoration: none;
  transition: 0.3s;
}

.nav-links a:hover {
  opacity: 0.8;
}

.hero-content {
  max-width: 700px;
  margin: 120px auto;
  text-align: center;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.btn {
  display: inline-block;
  background: white;
  color: #1b1f3b;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
}

.section {
  padding: 80px 20px;
}

.dark {
  background: #1f2937;
  color: white;
}

.container {
  max-width: 1100px;
  margin: auto;
}

.cards, .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.card, .feature {
  background: white;
  color: #222;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}

.dark .feature {
  background: #ffffff;
}

.info-table {
  width: 100%;
  margin-top: 30px;
  border-collapse: collapse;
}

.info-table td {
  border: 1px solid #ddd;
  padding: 14px;
}

.management {
  margin-top: 40px;
}

.contact {
  background: #eef2f7;
}

.contact-box {
  margin: 25px 0;
  padding: 20px;
  background: white;
  border-radius: 8px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  padding: 14px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

.contact-form textarea {
  min-height: 120px;
}

.contact-form button {
  padding: 14px;
  border: none;
  background: #1b1f3b;
  color: white;
  cursor: pointer;
  border-radius: 6px;
  font-size: 1rem;
}

footer {
  background: #111827;
  color: white;
  text-align: center;
  padding: 20px;
}

#success-message {
  margin-top: 20px;
  font-weight: bold;
  color: green;
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 15px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }
}