:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --track: #e2e8f0;
  --fill: #2563eb;
  --fill-warn: #b45309;
  --fill-high: #b91c1c;
  --chip-warn-bg: #fef3c7;
  --chip-warn-text: #92400e;
  --chip-danger-bg: #fee2e2;
  --chip-danger-text: #991b1b;
  --chip-muted-bg: #e2e8f0;
  --chip-muted-text: #334155;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --surface: #1e293b;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #334155;
    --accent: #60a5fa;
    --accent-text: #0f172a;
    --track: #334155;
    --fill: #60a5fa;
    --fill-warn: #fbbf24;
    --fill-high: #f87171;
    --chip-warn-bg: #422006;
    --chip-warn-text: #fde68a;
    --chip-danger-bg: #450a0a;
    --chip-danger-text: #fecaca;
    --chip-muted-bg: #334155;
    --chip-muted-text: #e2e8f0;
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

h1 {
  font-size: 1.5rem;
  margin: 0.25rem 0 0;
}

h2 {
  font-size: 1.125rem;
  margin: 0 0 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

h3 {
  font-size: 0.9375rem;
  margin: 0 0 4px;
}

.freshness {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

.freshness[data-state="offline"] {
  color: var(--fill-warn);
  font-weight: 600;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
}

.muted,
.status {
  color: var(--muted);
}

.status {
  font-size: 0.9375rem;
  margin: 8px 0 0;
  min-height: 1.5em;
}

.steps {
  padding-left: 1.25rem;
}

.steps li {
  margin-bottom: 8px;
}

button {
  font: inherit;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}

button.secondary {
  background: transparent;
  color: var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.code-form label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

.row {
  display: flex;
  gap: 8px;
}

input[type="text"] {
  flex: 1 1 8rem;
  min-height: 44px;
  font: 1.25rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
}

.notify {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.notify .status {
  margin: 0;
}

.chip {
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0 8px;
}

.chip[data-tone="warn"] {
  background: var(--chip-warn-bg);
  color: var(--chip-warn-text);
}

.chip[data-tone="danger"] {
  background: var(--chip-danger-bg);
  color: var(--chip-danger-text);
}

.chip[data-tone="muted"] {
  background: var(--chip-muted-bg);
  color: var(--chip-muted-text);
}

.meter {
  margin: 12px 0 0;
}

.meter-top,
.meter-detail {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.meter-value {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.meter-detail {
  color: var(--muted);
  font-size: 0.875rem;
}

.bar {
  height: 10px;
  border-radius: 999px;
  background: var(--track);
  overflow: hidden;
  margin-top: 4px;
}

.bar > span {
  display: block;
  height: 100%;
  background: var(--fill);
  border-radius: inherit;
}

.bar[data-tone="warn"] > span {
  background: var(--fill-warn);
}

.bar[data-tone="high"] > span {
  background: var(--fill-high);
}

.grants {
  border-top: 1px solid var(--border);
  margin-top: 12px;
  padding-top: 12px;
}

.grants ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.dimmed .meter,
.dimmed .grants {
  opacity: 0.5;
  filter: grayscale(1);
}

@media (prefers-reduced-motion: no-preference) {
  .bar > span {
    transition: width 0.3s ease;
  }
}