:root {
  --bg: #f8fafc;
  --text: #1a1a1a;
  --text-muted: #5c5c5c;
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --border: #e2e8f0;
  --success: #059669;
  --error: #dc2626;
}

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

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.stack {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.intro {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.intro-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  flex-shrink: 0;
}

.intro-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.intro-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.api-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0;
}

.api-list li code {
  font-family: 'JetBrains Mono', 'SF Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--accent-light);
  color: var(--accent);
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.status-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.8rem;
  margin-top: 1rem;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.ok {
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}

.status-dot.err {
  background: var(--error);
}

.status-dot.pending {
  background: var(--text-muted);
  opacity: 0.6;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading {
  color: var(--text-muted);
}

.error {
  color: var(--error);
}

@media (max-width: 420px) {
  body {
    padding: 1rem;
  }

  .card {
    padding: 1.5rem;
  }
}