:root {
  --background: #F1F5F9;
  --card: #FFFFFF;
  --primary: #0F172A;
  --accent: #0EA5A4;
  --text: #0F172A;
  --text-muted: #64748B;
  --border: #DCE3EE;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
}

header {
  background: var(--primary);
  color: #fff;
  padding: 20px;
}

header .brand {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

header h1 {
  margin: 0;
  font-size: 20px;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin-left: 18px;
  font-size: 14px;
  opacity: 0.85;
}

nav a:hover, nav a:focus {
  opacity: 1;
  text-decoration: underline;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 20px;
}

h2 { margin-top: 0; }

.tagline {
  color: var(--text-muted);
  font-size: 15px;
}

.meta {
  color: var(--text-muted);
  font-size: 13px;
}

.pill {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 700;
  margin-right: 6px;
}

footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  padding: 24px;
}

a { color: var(--accent); }