* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background-color: #f5f7fa;
  color: #1e293b;
  line-height: 1.6;
}

header {
  background-color: #1e3a8a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 25px;
  position: relative;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
}

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

nav ul li a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 5px;
  transition: background-color 0.2s ease;
}

nav ul li a:hover,
nav ul li a.active {
  background-color: #3b82f6;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

h1 {
  color: #1e3a8a;
  margin-bottom: 15px;
}

h2 {
  color: #1e3a8a;
  margin: 20px 0 10px;
}

.hero {
  text-align: center;
  padding: 40px 20px;
  background-color: #e0e7ff;
  border-radius: 10px;
  margin-bottom: 30px;
}

.hero p {
  max-width: 600px;
  margin: 10px auto 20px;
}

button {
  background-color: #1e3a8a;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

button:hover {
  background-color: #3b82f6;
}

.hidden-message {
  display: none;
  margin-top: 15px;
  background-color: #dcfce7;
  color: #166534;
  padding: 10px;
  border-radius: 6px;
}

.hidden-message.show {
  display: block;
}

.features {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.card {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  flex: 1 1 250px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.resource-section {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.resource-section ul,
.resource-section ol {
  margin-left: 20px;
  margin-top: 10px;
}

form {
  background-color: #fff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
}

label {
  margin-top: 12px;
  font-weight: 600;
}

input,
textarea {
  padding: 10px;
  margin-top: 6px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: #3b82f6;
}

.error {
  color: #dc2626;
  font-size: 0.85rem;
  margin-top: 4px;
  min-height: 18px;
}

form button {
  margin-top: 15px;
  align-self: flex-start;
}

#formSuccess {
  margin-top: 15px;
}

footer {
  text-align: center;
  padding: 15px;
  background-color: #1e3a8a;
  color: #fff;
}

@media (max-width: 700px) {
  .menu-toggle {
    display: block;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #1e3a8a;
  }

  nav.open {
    display: block;
  }

  nav ul {
    flex-direction: column;
    padding: 10px 0;
  }

  .features {
    flex-direction: column;
  }
}