body {
  margin: 0;
  font-family: sans-serif;
  color: #e8f0ff;
  background-color: #0b1220;
}

header {
  padding: 24px;
  background-color: #0f2447;
  border-bottom: 3px solid #38bdf8;
}

header h1 {
  margin: 0 0 8px 0;
  color: #38bdf8;
  letter-spacing: 1px;
}

nav a {
  margin-right: 16px;
  color: #e8f0ff;
  text-decoration: none;
}

nav a:hover {
  color: #38bdf8;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 24px;
}

.hero {
  padding: 40px;
  background-color: #12203a;
  border: 1px solid #1e3a5f;
  border-radius: 16px;
}

.hero h2 {
  color: #38bdf8;
}

.card {
  margin-bottom: 20px;
  padding: 24px;
  background-color: #12203a;
  border: 1px solid #1e3a5f;
  border-radius: 12px;
}

.card h3 {
  margin-top: 0;
  color: #38bdf8;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  margin-bottom: 8px;
  font-size: 0.8em;
  background-color: #1e3a5f;
  color: #7dd3fc;
  border-radius: 999px;
}

.closed {
  display: inline-block;
  padding: 2px 10px;
  margin-left: 8px;
  font-size: 0.8em;
  background-color: #4b1d1d;
  color: #fca5a5;
  border-radius: 999px;
}

.button {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 20px;
  color: #0b1220;
  background-color: #38bdf8;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
}

footer {
  padding: 24px;
  text-align: center;
  color: #7dd3fc;
}