:root {
  --navy: #1a365d;
  --red: #c53030;
  --light: #f7fafc;
  --text: #2d3748;
  --accent: #2b6cb0;
}

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

body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--light);
}

header {
  background: var(--navy);
  color: white;
  padding: 1rem 0;
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.5rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: bold;
  font-size: 1.25rem;
  color: white;
  text-decoration: none;
}

.logo img {
  background: #fbf8f1;
  border-radius: 8px;
  padding: 3px;
  width: 48px;
  height: auto;
}

.hero-logo {
  display: block;
  max-width: 360px;
  width: 100%;
  height: auto;
  margin: 0 auto 1.5rem;
  border-radius: 12px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

nav a {
  color: white;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.hero {
  text-align: center;
  padding: 3rem 1rem;
  background: white;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.hero h1 {
  color: var(--navy);
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.tagline {
  font-size: 1.5rem;
  color: var(--red);
  font-style: italic;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background: var(--red);
  color: white;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 4px;
  margin-top: 1rem;
}

.btn:hover {
  background: #9b2c2c;
}

.intro, .cards, .resource, .bridge {
  background: white;
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

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

.card {
  background: var(--light);
  padding: 1.25rem;
  border-radius: 6px;
  border-left: 4px solid var(--accent);
}

.frame {
  font-weight: bold;
  color: var(--navy);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.short {
  font-style: italic;
  background: #edf2f7;
  padding: 0.75rem;
  border-radius: 4px;
}

h1, h2, h3 {
  color: var(--navy);
  margin-bottom: 0.75rem;
}

ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

footer {
  background: var(--navy);
  color: white;
  text-align: center;
  padding: 1.5rem;
  margin-top: 2rem;
}

footer p {
  margin: 0.25rem 0;
}

@media (max-width: 600px) {
  nav {
    flex-direction: column;
    align-items: flex-start;
  }
  nav ul {
    margin-top: 0.5rem;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
}