:root {
  color-scheme: light dark;
  --bg: #f9fafb;
  --fg: #111827;
  --muted: #6b7280;
  --card: #ffffff;
  --line: #e5e7eb;
  --accent: #2563eb;
  --warn: #b45309;
  font-family: system-ui, -apple-system, "Hiragino Sans", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111827; --fg: #f9fafb; --muted: #9ca3af; --card: #1f2937; --line: #374151; --accent: #60a5fa; --warn: #fbbf24; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); padding: env(safe-area-inset-top) 16px calc(env(safe-area-inset-bottom) + 24px); }
header h1 { font-size: 1.25rem; margin: 16px 0; }
main { max-width: 560px; margin: 0 auto; }
.muted { color: var(--muted); font-size: 0.875rem; }
.notice { border: 1px solid var(--warn); color: var(--warn); border-radius: 8px; padding: 8px 12px; font-size: 0.875rem; }
#accounts { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 8px; }
.account { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center; }
.account .name { font-size: 0.875rem; color: var(--muted); overflow-wrap: anywhere; }
.account .code { font-size: 2rem; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; background: none; border: 0; color: var(--fg); padding: 0; text-align: left; cursor: pointer; }
.account .bar { grid-column: 1 / -1; height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; }
.account .bar span { display: block; height: 100%; background: var(--accent); transition: width 1s linear; }
.account .delete { grid-row: 1 / 3; grid-column: 2; background: none; border: 0; color: var(--muted); font-size: 0.875rem; cursor: pointer; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; margin-bottom: 12px; }
summary { cursor: pointer; font-weight: 600; }
form { display: grid; gap: 8px; margin-top: 16px; }
label { display: grid; gap: 4px; font-size: 0.875rem; }
input { font: inherit; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); width: 100%; }
button, .button { font: inherit; padding: 8px 12px; border: 1px solid var(--accent); border-radius: 8px; background: none; color: var(--accent); cursor: pointer; text-align: center; }
.buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
video { width: 100%; border-radius: 8px; margin-top: 12px; }
#requests h2 { font-size: 1rem; margin: 0 0 8px; }
#request-list { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 8px; }
.request { background: var(--card); border: 2px solid var(--accent); border-radius: 12px; padding: 12px 16px; display: grid; gap: 8px; }
.request .client { font-weight: 600; }
.request .what { overflow-wrap: anywhere; }
.request .details { margin: 4px 0 0; padding-left: 18px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.8125rem; }
.request form { margin: 0; grid-template-columns: 1fr auto auto; align-items: end; }
.request input { font-size: 1.5rem; text-align: center; letter-spacing: 0.2em; font-variant-numeric: tabular-nums; }
.request .deny { border-color: var(--muted); color: var(--muted); }
#devices h3 { font-size: 0.875rem; margin: 16px 0 8px; }
#device-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
#device-list li { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 0.875rem; }
#device-list .meta { color: var(--muted); font-size: 0.75rem; }
#device-list button { border-color: var(--muted); color: var(--muted); padding: 4px 10px; }
.check { display: flex; gap: 8px; align-items: center; }
.check input { width: auto; }
button.quiet { border-color: var(--muted); color: var(--muted); }
#sync-start { margin-top: 12px; }