:root {
  --bg: #080a1a;
  --bg2: #0f1430;
  --card: #141a3a;
  --ink: #eef2ff;
  --muted: #aab3d6;
  --accent: #5eead4;
  --accent2: #7c3aed;
  --line: #26305e;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(124,58,237,0.35), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(94,234,212,0.18), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--bg2));
  background-attachment: fixed;
  line-height: 1.6;
}
a { color: var(--accent); }
.wrap { max-width: 820px; margin: 0 auto; padding: 32px 20px 80px; }

header.hero { text-align: center; padding: 56px 20px 24px; }
header.hero img.icon {
  width: 110px; height: 110px; border-radius: 24px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5), 0 0 0 1px var(--line);
  image-rendering: auto;
}
header.hero h1 { font-size: clamp(28px, 6vw, 44px); margin: 18px 0 4px; letter-spacing: -0.5px; }
header.hero p.tag { color: var(--muted); margin: 0; font-size: 17px; }
header.hero .accent { color: var(--accent); }

nav { text-align: center; margin: 18px 0 8px; }
nav a { margin: 0 10px; text-decoration: none; font-weight: 600; }
nav a:hover { text-decoration: underline; }

.hero-art {
  display: block; width: 100%; max-width: 360px; margin: 22px auto 0;
  border-radius: 22px; border: 1px solid var(--line);
  box-shadow: 0 18px 50px rgba(0,0,0,0.55);
}

h2 { font-size: 24px; margin: 36px 0 10px; }
h3 { font-size: 18px; margin: 22px 0 6px; }
.muted { color: var(--muted); }

.card {
  background: rgba(20,26,58,0.7);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 22px;
  margin: 16px 0;
  backdrop-filter: blur(6px);
}
.btn {
  display: inline-block; margin-top: 14px; padding: 12px 22px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  color: #05221d; font-weight: 800; text-decoration: none;
}
.btn:hover { filter: brightness(1.07); }

ul { padding-left: 22px; }
li { margin: 6px 0; }

footer {
  text-align: center; color: var(--muted); font-size: 14px;
  border-top: 1px solid var(--line); margin-top: 56px; padding: 26px 20px;
}
footer a { color: var(--muted); }
code { background: #0c1130; padding: 2px 6px; border-radius: 6px; color: var(--accent); }