:root {
  --bg: #0e1116;
  --panel: #161b22;
  --text: #d7dde5;
  --muted: #8b949e;
  --accent: #4c9aff;
  --line: #232a34;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

nav {
  max-width: 720px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: baseline;
}

nav .brand {
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  margin-right: auto;
}

nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 24px; color: #fff; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; color: #fff; }
p, ul { margin: 0 0 16px; }
ul { padding-left: 20px; }
li { margin-bottom: 8px; }
a { color: var(--accent); }

.contact {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 20px;
  background: var(--panel);
  margin-top: 32px;
}
.contact p { margin: 0 0 6px; }
.contact p:last-child { margin: 0; }

.effective { color: var(--muted); font-size: 0.9rem; }

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 24px 20px 40px;
}