:root {
  --bg: #0f1218;
  --card: #151a23;
  --text: #e6e8ee;
  --muted: #aab1c3;
  --border: rgba(255,255,255,0.08);
  --link: #a5b4fc;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --card: #ffffff;
    --text: #1c1f2a;
    --muted: #5b647a;
    --border: rgba(0,0,0,0.08);
    --link: #4c6ef5;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 16px 48px;
}

.header {
  margin-bottom: 14px;
}

h1 {
  margin: 0 0 6px;
  font-size: 32px;
  letter-spacing: -0.02em;
}

.sub {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.meta {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 16px;
  margin: 14px 0;
}

h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

h3 {
  margin: 14px 0 6px;
  font-size: 15px;
  color: var(--text);
}

ul {
  margin: 8px 0 0 18px;
  padding: 0;
}

li { margin: 6px 0; }

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

a:hover { text-decoration: underline; }

.contact {
  font-weight: 700;
  margin: 8px 0 0;
}

.note {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}