:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --card: #ffffff;
  --border: #e5e5e5;
  --text: #171717;
  --muted: #737373;
  --accent: #171717;
  --accent-hover: #f5f5f5;
  --primary: #171717;
  --primary-fg: #fafafa;
  --secondary: #f5f5f5;
  --secondary-fg: #404040;
  --up: #16a34a;
  --down: #dc2626;
  --warn: #ca8a04;
  --shimmer: rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0a0a;
    --card: #0a0a0a;
    --border: #262626;
    --text: #fafafa;
    --muted: #a3a3a3;
    --accent: #fafafa;
    --accent-hover: #171717;
    --primary: #fafafa;
    --primary-fg: #171717;
    --secondary: #262626;
    --secondary-fg: #d4d4d4;
    --up: #4ade80;
    --down: #f87171;
    --warn: #facc15;
    --shimmer: rgba(255, 255, 255, 0.04);
  }
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #fafafa;
  --card: #ffffff;
  --border: #e5e5e5;
  --text: #171717;
  --muted: #737373;
  --accent: #171717;
  --accent-hover: #f5f5f5;
  --primary: #171717;
  --primary-fg: #fafafa;
  --secondary: #f5f5f5;
  --secondary-fg: #404040;
  --up: #16a34a;
  --down: #dc2626;
  --warn: #ca8a04;
  --shimmer: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0a0a;
  --card: #0a0a0a;
  --border: #262626;
  --text: #fafafa;
  --muted: #a3a3a3;
  --accent: #fafafa;
  --accent-hover: #171717;
  --primary: #fafafa;
  --primary-fg: #171717;
  --secondary: #262626;
  --secondary-fg: #d4d4d4;
  --up: #4ade80;
  --down: #f87171;
  --warn: #facc15;
  --shimmer: rgba(255, 255, 255, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  overflow-wrap: anywhere;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  height: 56px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.brand svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: 16px;
}

.nav-links a {
  padding: 8px;
  font-size: 13px;
  color: var(--muted);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  text-decoration: none;
}

.nav-links a.active {
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.header-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

.header-actions button:hover:not(:disabled) {
  background: var(--accent-hover);
}

.header-actions button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.page {
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

@media (min-width: 640px) {
  .page {
    padding-top: 48px;
  }
}

.page-title {
  margin: 0 0 24px;
  font-size: 2.25rem;
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.page-lead {
  margin: -12px 0 24px;
  color: var(--muted);
  font-size: 14px;
  max-width: 60ch;
}

.page-meta {
  margin: -12px 0 24px;
  color: var(--muted);
  font-size: 12px;
}

.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.badge-primary {
  background: var(--primary);
  color: var(--primary-fg);
}

.badge-secondary {
  background: var(--secondary);
  color: var(--secondary-fg);
}

.badge-up {
  background: color-mix(in srgb, var(--up) 12%, transparent);
  color: var(--up);
  border-color: color-mix(in srgb, var(--up) 25%, transparent);
}

.badge-down {
  background: color-mix(in srgb, var(--down) 12%, transparent);
  color: var(--down);
  border-color: color-mix(in srgb, var(--down) 25%, transparent);
}

.badge-warn {
  background: color-mix(in srgb, var(--warn) 12%, transparent);
  color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 25%, transparent);
}

.section-title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
}

.pair-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

@media (min-width: 900px) {
  .pair-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pair-grid .card:nth-child(odd) {
    border-right: 1px solid var(--border);
  }
}

.pair-grid .card {
  border: none;
  border-bottom: 1px solid var(--border);
  margin: 0;
}

.pair-grid .card:last-child {
  border-bottom: none;
}

@media (min-width: 900px) {
  .pair-grid .card {
    border-bottom: none;
  }
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0 -16px 24px;
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
    margin: 0 0 24px;
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-top: 0;
  border-left: 0;
  background: var(--card);
  transition: background 0.2s;
}

.card-grid .card:first-child {
  border-top: 1px solid var(--border);
}

@media (min-width: 640px) {
  .card {
    border-top: 1px solid var(--border);
    border-left: 0;
    margin-right: -1px;
    margin-bottom: -1px;
  }

  .card-grid .card:first-child {
    border-left: 1px solid var(--border);
  }
}

.card:hover {
  background: var(--accent-hover);
}

.card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  min-height: 100%;
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card-desc {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  word-break: break-word;
}

.card-desc-error {
  color: var(--down);
}

.meta {
  margin-top: 24px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.meta p {
  margin: 0 0 8px;
}

.meta-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
}

.metrics-section {
  margin-bottom: 24px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--border);
}

@media (min-width: 900px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .metrics-grid .metrics-card:nth-child(odd) {
    border-right: 1px solid var(--border);
  }
}

.metrics-card {
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.metrics-card:last-child {
  border-bottom: none;
}

.metrics-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.metrics-card-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}

.metrics-host {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.metrics-source {
  color: var(--muted);
  font-size: 11px;
  text-transform: lowercase;
  white-space: nowrap;
}

.metrics-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}

.metrics-meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metrics-meta-label {
  font-size: 11px;
  color: var(--muted);
}

.metrics-meta-value {
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.metrics-error {
  margin: 0;
  padding: 20px;
  color: var(--down);
  font-size: 13px;
}

.metrics-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.metrics-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 12px;
}

.metrics-table th,
.metrics-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.metrics-table th:first-child,
.metrics-table td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--card);
  box-shadow: 1px 0 0 var(--border);
}

.metrics-table thead th {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.metrics-table tbody th {
  font-weight: 500;
}

.metric-cell.tone-good { color: var(--up); }
.metric-cell.tone-warn { color: var(--warn); }
.metric-cell.tone-bad { color: var(--down); }
.metric-cell.tone-neutral { color: var(--muted); }

.error-box {
  padding: 20px;
  border: 1px solid color-mix(in srgb, var(--down) 35%, transparent);
  background: color-mix(in srgb, var(--down) 8%, transparent);
  color: var(--down);
  font-size: 13px;
}

.skeleton-card,
.skeleton-chip {
  position: relative;
  overflow: hidden;
  min-height: 140px;
}

.skeleton-card::after,
.skeleton-chip::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, var(--shimmer), transparent);
  animation: shimmer 1.4s infinite;
}

.skeleton-metrics {
  min-height: 280px;
}

@keyframes shimmer {
  100% { transform: translateX(100%); }
}

@media (max-width: 640px) {
  .site-header {
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav-links {
    order: 3;
    width: 100%;
    margin-left: 0;
  }

  .metrics-card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .metrics-meta {
    grid-template-columns: 1fr;
  }
}