:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --card: #1a222c;
  --text: #e8edf2;
  --muted: #9aa8b5;
  --accent: #c9a86c;
  --border: #2a3542;
  --link: #7eb8ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: linear-gradient(180deg, #0b1015 0%, var(--bg) 100%);
}

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

header {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 0;
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.tagline {
  color: var(--muted);
  margin-top: 0.35rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin: 1.25rem 0 0;
  font-size: 0.95rem;
}

main,
footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
}

h1 {
  font-size: 1.85rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
  color: var(--accent);
}

p,
li {
  color: var(--text);
}

.muted {
  color: var(--muted);
}

ul {
  padding-left: 1.2rem;
}

footer {
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f8;
    --card: #ffffff;
    --text: #1c2430;
    --muted: #5c6b7a;
    --border: #d8e0e8;
  }

  body {
    background: linear-gradient(180deg, #eef2f6 0%, var(--bg) 100%);
  }
}