:root {
  --bg: #0c0e13;
  --bg-elevated: #141821;
  --text: #e5e7eb;
  --text-muted: #9ca3af;
  --accent: #7dd3fc;
  --border: #1f2937;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

header .brand {
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

header .brand a {
  color: inherit;
  text-decoration: none;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  letter-spacing: -0.01em;
}

.updated {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 211, 252, 0.3);
  transition: border-color 0.15s ease;
}

a:hover,
a:focus {
  border-bottom-color: var(--accent);
}

ul {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

li {
  margin-bottom: 0.35rem;
}

.muted {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.links a {
  display: inline-block;
  padding: 0.875rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-weight: 500;
}

.links a:hover,
.links a:focus {
  border-color: var(--accent);
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.875rem;
}

footer a {
  color: var(--text-muted);
  border-bottom-color: transparent;
}

footer a:hover,
footer a:focus {
  color: var(--accent);
  border-bottom-color: var(--accent);
}