:root {
  --bg: #010409;
  --text: #f0f6fc;
  --muted: #8b949e;
  --border: #21262d;
  --card: #0c1015;
  --accent: #58a6ff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header { border-bottom: 1px solid var(--border); padding: 16px 0; }
.header-inner { max-width: 960px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; }
.header-title { font-size: 18px; font-weight: 600; }

main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 24px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 560px;
  text-align: center;
  box-shadow: 0 16px 32px rgba(1, 4, 9, 0.85);
}

.simple-page main { padding: 0; }

.card h1 { font-size: 24px; font-weight: 600; margin-bottom: 12px; }
.muted { color: var(--muted); font-size: 14px; }

.actions { margin-top: 18px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

.btn {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

.btn.primary { border-color: var(--accent); }
.btn:hover { border-color: var(--accent); }

.spinner {
  width: 20px; height: 20px;
  border: 2px solid #30363d;
  border-top: 2px solid var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 18px auto 12px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 24px;
  color: var(--muted);
  font-size: 12px;
  display: flex;
  justify-content: center;
}