:root {
  font-family: ui-sans-serif, system-ui, sans-serif;
  color: #e5e7eb;
  background: #111827;
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
main {
  max-width: 960px;
  margin: auto;
  padding: 32px 24px;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 64px;
}
header a {
  font-size: 24px;
  font-weight: 750;
  color: #fff;
  text-decoration: none;
}
header span,
.muted,
footer {
  color: #9ca3af;
}
h1 {
  font-size: clamp(30px, 5vw, 44px);
  letter-spacing: -0.04em;
  margin-bottom: 12px;
}
h2 {
  font-size: 20px;
  margin-top: 36px;
}
.banner {
  padding: 22px;
  border: 1px solid currentColor;
  border-radius: 12px;
  margin-top: 28px;
  font-weight: 650;
}
.operational {
  color: #6ee7b7;
}
.down {
  color: #fca5a5;
}
.degraded {
  color: #fcd34d;
}
.unknown {
  color: #cbd5e1;
}
.maintenance {
  color: #93c5fd;
}
.card {
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 12px;
  padding: 22px;
  margin-top: 14px;
}
.card h2 {
  margin: 0;
  font-size: 18px;
}
.row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.windows {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin: 20px 0;
  font-size: 14px;
}
.window strong {
  display: block;
  color: #f9fafb;
  font-size: 20px;
  margin: 4px 0;
}
.detail {
  font-size: 12px;
  color: #9ca3af;
}
.history {
  display: flex;
  gap: 3px;
  margin: 14px 0;
}
.day {
  flex: 1;
  min-width: 0;
  height: 26px;
  border: 0;
  border-radius: 2px;
  padding: 0;
  background: #475569;
  position: relative;
}
.day.operational {
  background: #34d399;
}
.day.down {
  background: #f87171;
}
.day.degraded {
  background: #fbbf24;
}
.day.maintenance {
  background: #60a5fa;
}
.day:focus-visible {
  outline: 2px solid white;
  outline-offset: 3px;
}
.day:hover:after,
.day:focus:after {
  content: attr(aria-label);
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  padding: 10px;
  background: #030712;
  color: #fff;
  border: 1px solid #64748b;
  border-radius: 6px;
  z-index: 2;
  font-size: 12px;
}
.history-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #9ca3af;
}
.incident {
  padding: 14px 0;
  border-bottom: 1px solid #374151;
}
footer {
  font-size: 13px;
  line-height: 1.7;
  margin-top: 48px;
  border-top: 1px solid #374151;
}
li {
  margin: 8px 0;
}
@media (max-width: 600px) {
  main {
    padding: 24px 16px;
  }
  header {
    margin-bottom: 40px;
  }
  .windows {
    gap: 16px;
  }
  .window {
    flex: 1;
    min-width: 80px;
  }
  .row {
    align-items: flex-start;
  }
  .history {
    gap: 2px;
  }
  .card {
    padding: 16px;
  }
}