:root {
  --red: #c21118;
  --ink: #111111;
  --slate: #4a4a4a;
  --line: #e5e5e5;
  --bg: #ffffff;
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

header {
  background: var(--red);
  color: #fff;
  border-bottom: 1px solid #000;
  padding: 16px 20px;
}
header a { color: #fff; text-decoration: none; }
header .brand {
  font-weight: 900;
  font-size: 28px;
  letter-spacing: 0.6px;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
  font-size: 15px;
}
nav a { opacity: 0.92; }
nav a:hover, nav a.active { text-decoration: underline; font-weight: 700; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 48px;
}
h1 { font-size: 28px; margin: 0 0 12px; }
h2 { font-size: 18px; margin: 28px 0 8px; color: var(--red); }
p, li { color: var(--slate); }
ul { padding-inline-start: 20px; }
.card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  margin: 16px 0;
}
.links { display: grid; gap: 10px; margin-top: 20px; }
.links a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}
.links a:hover { border-color: var(--red); color: var(--red); }
footer {
  border-top: 1px solid var(--line);
  padding: 18px 20px 28px;
  text-align: center;
  color: var(--slate);
  font-size: 13px;
}
footer a { color: var(--red); }