:root {
  --bg: #111;
  --fg: #e0e0e0;
  --accent: #6cb4ee;
  --muted: #888;
  --card-bg: #1a1a1a;
  --border: #333;
  --max-width: 680px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  padding: 2rem 1.5rem;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

header {
  margin-bottom: 3rem;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.tagline {
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.header-links {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.header-links a {
  color: var(--accent);
}

.positioning {
  font-size: 1.05rem;
  line-height: 1.5;
}

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

section {
  margin-bottom: 2.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.95rem;
  color: var(--fg);
}

ul {
  list-style: none;
  padding: 0;
}

li {
  padding: 0.4rem 0;
  font-size: 0.95rem;
}

li::before {
  content: "\2022";
  color: var(--accent);
  font-weight: bold;
  display: inline-block;
  width: 1em;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

#contact p {
  font-size: 1.05rem;
}

@media (max-width: 480px) {
  body {
    padding: 1.5rem 1rem;
  }

  h1 {
    font-size: 1.6rem;
  }
}