body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f9fafb;
  color: #333;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #fff;
  padding: 15px 30px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  position: relative;
}

header h1 {
  color: #2563eb;
  font-size: 24px;
  margin: 0;
}

nav {
  display: flex;
  gap: 15px;
}

nav a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
  transition: color 0.3s;
}

nav a:hover {
  color: #2563eb;
}

header form {
  display: flex;
  gap: 10px;
}

input[type="email"], input[type="password"] {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 14px;
}

button {
  background-color: #2563eb;
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #1e4fd6;
}

main {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
}

.card {
  background: #fff;
  max-width: 900px;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  animation: fadeInUp 0.8s ease;
}

.card h2 {
  font-size: 28px;
  margin-bottom: 15px;
  color: #111;
}

.card p {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 20px;
  color: #555;
}

.card ul {
  margin: 0;
  padding-left: 20px;
  color: #444;
}

.card ul li {
  margin-bottom: 8px;
}

.cta-btn {
  display: inline-block;
  margin-top: 20px;
  font-size: 16px;
  padding: 12px 20px;
}

footer {
  text-align: center;
  padding: 15px;
  background: #f1f5f9;
  font-size: 14px;
  color: #666;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Адаптивное меню --- */
.menu-toggle {
  display: none;
  font-size: 26px;
  cursor: pointer;
  background: none;
  border: none;
  color: #333;
}

@media (max-width: 768px) {
  nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  }

  nav.active {
    display: flex;
  }

  header form {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}