:root {
  --sky-top: #3aa0ff;
  --sky-bottom: #c6ecff;
  --ink: #1d2340;
  --muted: #4b587c;
  --card: rgba(255, 255, 255, 0.92);
  --accent: #ff8a1f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, var(--sky-top), var(--sky-bottom)) fixed;
  line-height: 1.6;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

header img {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

header a {
  color: #fff;
  text-decoration: none;
  font-size: 32px;
  font-weight: 800;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.card {
  background: var(--card);
  border-radius: 24px;
  padding: 28px 32px;
  box-shadow: 0 10px 30px rgba(0, 40, 90, 0.15);
}

h1 { margin-top: 0; font-size: 30px; line-height: 1.2; }
h2 { font-size: 20px; margin-top: 28px; }
p, li { color: var(--muted); }
a { color: #0a66d1; }

.hero p { font-size: 18px; }

nav {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

nav a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

footer {
  margin-top: 24px;
  text-align: center;
  color: #fff;
  font-size: 14px;
}

footer a { color: #fff; }