:root {
  --bg: #141b24; --panel: #19222e; --header: #222f3f; --border: #334255;
  --text: #e4eaf1; --muted: #93a4b6; --accent: #4f9de0;
  --green: #3db46e; --amber: #f0b040; --red: #e04f4f; --grey: #6b7785;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.4 "Segoe UI", system-ui, -apple-system, sans-serif; }
body { padding: 16px; padding-top: max(16px, env(safe-area-inset-top)); }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 15px; margin: -12px -14px 12px; padding: 8px 14px; background: var(--header); border-left: 3px solid var(--accent); border-radius: 8px 8px 0 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; margin-bottom: 14px; min-width: 0; }
.card.narrow { max-width: 440px; margin: 48px auto; }
button { font: inherit; color: var(--text); background: var(--header); border: 1px solid var(--border); border-radius: 6px; padding: 8px 14px; cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #0b1520; font-weight: 600; width: 100%; padding: 12px; }
button.ghost { background: transparent; }
button:disabled { opacity: .5; cursor: default; }
input[type=checkbox] { width: 20px; height: 20px; margin: 0; flex: none; accent-color: var(--accent); }
select { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; max-width: 100%; }
input:not([type=checkbox]) { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; width: 100%; margin: 4px 0 10px; }
label { display: block; color: var(--muted); font-size: 13px; }
label.check { display: inline-flex; gap: 8px; align-items: center; color: var(--text); font-size: 14px; white-space: nowrap; }
details { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 12px; }
summary { cursor: pointer; color: var(--accent); }
.msg { min-height: 1.4em; color: var(--amber); }
.code { font-size: 32px; letter-spacing: 6px; font-weight: 700; margin: 4px 0; }
#layout-switch { position: fixed; top: 8px; right: 8px; display: flex; gap: 2px; z-index: 5; }
#layout-switch button { padding: 3px 8px; font-size: 12px; background: var(--panel); }
#layout-switch button.on { background: var(--accent); color: #0b1520; border-color: var(--accent); }
.topbar { display: flex; align-items: center; gap: 12px; margin: 18px 0 14px; }
.topbar-text { flex: 1; min-width: 0; }
.title { font-size: 18px; font-weight: 700; }
.dot { width: 14px; height: 14px; border-radius: 7px; background: var(--grey); flex: none; }
.dot.green { background: var(--green); } .dot.amber { background: var(--amber); } .dot.red { background: var(--red); }
dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0; }
dt { color: var(--muted); } dd { margin: 0; overflow-wrap: anywhere; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.spacer { flex: 1; }
.events { list-style: none; margin: 8px 0 0; padding: 0; }
.events li { border-top: 1px solid var(--border); padding: 9px 4px; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; }
.events li:hover, .events li.sel { background: var(--header); }
.events .when { font-weight: 600; }
.events .meta { color: var(--muted); font-size: 13px; grid-column: 1 / -1; }
.events .play { color: var(--accent); font-size: 13px; align-self: center; }
audio { width: 100%; margin: 6px 0 10px; }

/* Desktop: side by side */
body.desktop .grid { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(320px, 1.4fr); grid-template-areas: "status player" "events player" "events ."; gap: 14px; align-items: start; }
body.desktop #status-card { grid-area: status; margin: 0; }
body.desktop #events-card { grid-area: events; margin: 0; }
body.desktop #player-card { grid-area: player; margin: 0; position: sticky; top: 16px; }
body.desktop .events { max-height: 60vh; overflow: auto; }

/* Mobile: one column, big targets, player docked at the bottom */
body.mobile { padding-bottom: 210px; font-size: 16px; }
body.mobile .events li { padding: 13px 6px; }
body.mobile button { padding: 11px 16px; }
body.mobile #player-card { position: fixed; left: 8px; right: 8px; bottom: max(8px, env(safe-area-inset-bottom)); margin: 0; box-shadow: 0 -6px 24px #000a; max-height: 200px; overflow: auto; }
body.mobile #player-details { display: none; }

.meters { display: grid; gap: 6px; margin: 8px 0 10px; }
.meter { display: grid; grid-template-columns: minmax(80px, 30%) 1fr 64px; gap: 8px; align-items: center; font-size: 13px; }
.meter .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); }
.meter .bar { position: relative; height: 14px; background: #101822; border-radius: 3px; overflow: hidden; }
.meter .rms { position: absolute; left: 0; top: 0; bottom: 0; background: #3db4a0; }
.meter.trig .rms { background: var(--amber); }
.meter .tick { position: absolute; top: 0; bottom: 0; width: 2px; }
.meter .peak { background: #f4f8ff; }
.meter .floor { background: #8f9cab; }
.meter .thr { background: var(--amber); }
.meter .val { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.meter.trig .val { color: var(--amber); font-weight: 600; }
#spectrogram { width: 100%; height: 160px; background: #101822; border-radius: 4px; image-rendering: pixelated; display: block; }
.axis { display: flex; justify-content: space-between; margin-top: 2px; }
body.desktop .grid { grid-template-areas: "status live" "events player" "events ."; }
body.desktop #live-card { grid-area: live; margin: 0; }
body.mobile .row { row-gap: 10px; }

a.button { display: inline-block; color: var(--text); background: var(--header); border: 1px solid var(--border); border-radius: 6px; padding: 8px 14px; text-decoration: none; }
#flag-row input { flex: 1; min-width: 160px; margin: 0; }
.events .flag { color: var(--amber); font-size: 13px; grid-column: 1 / -1; }
body.mobile #player-card { max-height: 300px; }
body.mobile { padding-bottom: 310px; }