:root {
  --bg: #ffffff;
  --fg: #1a1d21;
  --muted: #5b6470;
  --accent: #0b6bcb;
  --card: #f4f6f8;
  --border: #e1e5ea;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1318;
    --fg: #e7ebf0;
    --muted: #9aa4b2;
    --accent: #5aa7f0;
    --card: #171c23;
    --border: #262c35;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
}
header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
header a { color: var(--accent); text-decoration: none; }
main { max-width: 880px; margin: 0 auto; padding: 1.5rem; }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
#page-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
#page-list li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
}
#page-list a { font-weight: 600; color: var(--accent); text-decoration: none; font-size: 1.05rem; }
#page-list .desc { display: block; color: var(--muted); font-size: 0.92rem; margin-top: 0.25rem; }

/* Login */
.login-page { min-height: 100vh; display: grid; place-items: center; }
.login-card {
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2.5rem 2rem;
  max-width: 380px;
}
.login-card button {
  margin-top: 1rem;
  padding: 0.7rem 1.4rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}
.login-card button:hover { filter: brightness(1.08); }
.status { min-height: 1.2rem; margin-top: 1rem; color: #c0392b; font-size: 0.9rem; }
@media (prefers-color-scheme: dark) { .status { color: #ff8a80; } }