:root {
  --bg: #0f172a;
  --card: #020617;
  --text: #e5e7eb;
  --accent: #38bdf8;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #020617;
  --accent: #0284c7;
}

body {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: radial-gradient(circle at top, var(--bg), #000);
  color: var(--text);
}

header {
  position: fixed;
  top: 20px;
  right: 20px;
}

header button {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  margin-left: 6px;
  padding: 6px 10px;
  cursor: pointer;
}

main {
  max-width: 620px;
  margin: 120px auto;
  padding: 50px;
  background: var(--card);
  border-radius: 16px;
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.15);
  text-align: center;
}

.avatar {
  width: 140px;
  border-radius: 50%;
  margin-bottom: 20px;
  border: 2px solid var(--accent);
}

h1 {
  margin: 10px 0 0;
}

h2 {
  margin: 6px 0 20px;
  font-weight: 400;
  color: #94a3b8;
}

.links a {
  margin: 0 12px;
  color: var(--accent);
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  color: #64748b;
  margin-bottom: 40px;
}

.lang {
  display: none;
}