:root {
  color-scheme: light dark;
  --fg: #1d1d1f;
  --muted: #6b6b70;
  --line: #e3e3e6;
  --bg: #fbfbfc;
  --card: #ffffff;
  --accent: #f38020;
  --good: #1f9d55;
  --warn: #c98a00;
  --bad: #d64545;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ececee;
    --muted: #9b9ba1;
    --line: #2c2c31;
    --bg: #121214;
    --card: #1b1b1e;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
}
main {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 18px 64px;
}
h1 {
  font-size: 22px;
  margin: 0 0 6px;
}
p {
  margin: 0 0 10px;
}
a {
  color: var(--accent);
}
.muted {
  color: var(--muted);
}
.small {
  font-size: 13px;
}
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 16px 0;
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: end;
}
label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
label.check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--fg);
  font-size: 14px;
}
input,
select {
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}
.buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}
button {
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  font: inherit;
  cursor: pointer;
}
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
button:disabled {
  opacity: 0.45;
  cursor: default;
}

/* share page */
.room {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.room-info {
  flex: 1 1 320px;
  min-width: 0;
}
.link-row {
  display: flex;
  gap: 8px;
  margin: 8px 0 4px;
}
.link-row input {
  flex: 1;
  min-width: 0;
}
.qr {
  width: 132px;
  height: 132px;
  background: #fff;
  border-radius: 6px;
  padding: 4px;
}
.qr svg {
  width: 100%;
  height: 100%;
  display: block;
}
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 8px 20px;
}
.stats span {
  display: block;
  font-size: 12px;
  color: var(--muted);
}
.stats b {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
#preview {
  width: 320px;
  max-width: 100%;
  border-radius: 8px;
  background: #000;
}
.big-clock {
  position: fixed;
  right: 18px;
  bottom: 18px;
  padding: 10px 18px;
  border-radius: 10px;
  background: #000;
  color: #fff;
  font: 700 56px/1.1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
  z-index: 10;
}

/* watch page */
.paths {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 12px 0;
}
.panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  min-width: 0;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.latency {
  font: 700 22px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.latency.good {
  color: var(--good);
}
.latency.warn {
  color: var(--warn);
}
.latency.bad {
  color: var(--bad);
}
.canvas-wrap {
  overflow: auto;
  background: #000;
  border-radius: 6px;
}
.panel canvas {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
}
.panel canvas.actual {
  width: auto;
  max-width: none;
}
.panel-stats {
  white-space: pre-line;
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.5;
}
.clock-row {
  margin: 16px 0 6px;
  font-size: 15px;
}
.clock-row .mono {
  font-size: 28px;
  font-weight: 700;
  margin-left: 8px;
}