.rr-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.rr-panel-header {
  display: flex;
  gap: 1rem;
  align-items: start;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding: 0.2rem 0.2rem 0.2rem;
  background: var(--surface-strong);
}
.rr-panel-title {
  display: inline;
  margin: 0;
  font-size: 1rem;
  line-height: 1.25;
}
.rr-panel-kicker {
  display: inline;
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}
.rr-panel-body {
  padding: 1rem;
}

.rr-sink-section {
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/*
 * Time sink
 */

.rr-time-sink-header,
.rr-time-sink-controls {
  flex-wrap: wrap;
}

.rr-time-sink-controls {
  display: flex;
  gap: 0.4rem;
  align-items: end;
  /* Follow the page's selected theme, including an explicit light override
   * when the operating system prefers dark colors. */
  color-scheme: inherit;
  color: var(--text, CanvasText);
}

.rr-time-sink-control-field {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.rr-time-sink-control-field input {
  width: 6rem;
}

.rr-time-sink-controls input,
.rr-time-sink-controls select,
.rr-time-sink-controls button {
  color: var(--text, CanvasText);
  background: var(--surface, Canvas);
  border: 1px solid var(--border-strong, GrayText);
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  font: inherit;
}

.rr-time-sink-controls :disabled {
  opacity: 0.6;
}

.rr-time-sink-canvas {
  display: block;
  width: 100%;
  height: clamp(200px, 20vh, 470px);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface-muted);
}

/*
 * Arbitrary-X sink
 */
.rr-xy-sink-canvas {
  display: block;
  width: 100%;
  height: clamp(330px, 42vh, 560px);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface-muted);
}

/*
 * Waterfall sink
 */
.rr-waterfall-sink-layout {
  color: #222;
  display: grid;
  font: 12px sans-serif;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-rows: auto 18px 18px 18px;
  column-gap: 8px;
  row-gap: 4px;
  align-items: stretch;
}

.rr-waterfall-sink-y-label {
  color: #222;
  display: flex;
  grid-column: 1;
  grid-row: 1 / span 3;
  align-items: center;
  justify-content: center;
  min-width: 32px;
}

.rr-waterfall-sink-y-label-text {
  transform: rotate(-90deg);
  white-space: nowrap;
}

.rr-waterfall-sink-plot {
  background: #fff;
  color: #e7e7e7;
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  position: relative;
}

.rr-waterfall-sink-canvas {
  display: block;
  width: 100%;
  height: clamp(280px, 32vh, 380px);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface-muted);
}

.rr-waterfall-sink-grid {
  display: none;
  position: absolute;
  top: 0;
  bottom: 0;
  border-left: 1px solid currentColor;
  pointer-events: none;
}

.rr-waterfall-sink-grid-0 {
  left: 0;
}

.rr-waterfall-sink-grid-1 {
  left: 25%;
}

.rr-waterfall-sink-grid-2 {
  left: 50%;
}

.rr-waterfall-sink-grid-3 {
  left: 75%;
}

.rr-waterfall-sink-grid-4 {
  left: 100%;
}

.rr-waterfall-sink-status {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  color: #222;
  pointer-events: none;
}

.rr-waterfall-sink-status-hidden {
  display: none;
}

.rr-waterfall-sink-x-ticks {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  min-width: 0;
  height: 18px;
}

.rr-waterfall-sink-tick {
  position: absolute;
  transform: translateX(-50%);
  white-space: nowrap;
}

.rr-waterfall-sink-tick-0 {
  left: 0;
}

.rr-waterfall-sink-tick-1 {
  left: 25%;
}

.rr-waterfall-sink-tick-2 {
  left: 50%;
}

.rr-waterfall-sink-tick-3 {
  left: 75%;
}

.rr-waterfall-sink-tick-4 {
  left: 100%;
}

.rr-waterfall-sink-x-label {
  grid-column: 2;
  grid-row: 3;
  text-align: center;
}

/* Reserve the readout row so entering the plot does not move the layout. */
.rr-waterfall-sink-cursor-frequency {
  grid-column: 2;
  grid-row: 4;
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .rr-waterfall-sink-layout,
  .rr-waterfall-sink-y-label,
  .rr-waterfall-sink-status {
    color: #ddd;
  }

  .rr-waterfall-sink-plot {
    background: #0b0b0b;
    color: #242424;
  }

  .rr-waterfall-sink-status {
    background: #0b0b0b;
  }
}

:root {
  color-scheme: light;
  font: 14px/1.5 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --page: #f4f6f5;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --surface-muted: #f7f9f8;
  --ink: #20332e;
  --muted: #677b73;
  --border: #dce5e0;
  --border-strong: #cbd8d1;
  --accent: #176950;
  --accent-hover: #10543f;
  --accent-soft: #eaf3ee;
  --radius: 14px;
  --shadow: 0 4px 20px #243b2e06;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); }
main { max-width: 1440px; margin: auto; padding: 42px 40px 24px; }
.masthead { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 32px; }
.brand { display: flex; align-items: center; gap: 16px; }
.brand-mark { display: grid; place-items: center; width: 52px; height: 52px; border: 1px solid var(--border-strong); border-radius: 15px; background: var(--surface); color: var(--accent); }
.brand-mark svg { width: 32px; height: 32px; }
.eyebrow { margin: 0 0 3px; color: var(--accent); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.18em; }
h1 { margin: 0; font-size: clamp(24px, 3vw, 32px); line-height: 1.15; font-weight: 600; letter-spacing: -0.045em; }
.masthead-note { margin: 0; text-align: right; font-size: 13px; }
.masthead-note span { color: var(--muted); }
.connection-card { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.connection-heading { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px 0; }
.connection-heading h2 { margin: 0; font-size: 14px; font-weight: 600; }
.connection-protocol { border: 1px solid var(--border); border-radius: 5px; padding: 2px 7px; color: var(--muted); font: 10px/1.6 ui-monospace, monospace; text-transform: uppercase; letter-spacing: 0.06em; }
.connection { display: grid; grid-template-columns: minmax(180px, 1fr) 110px minmax(170px, 1fr) auto; align-items: end; gap: 20px; padding: 20px 24px 24px; }
label { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-size: 12px; font-weight: 500; }
input, select, button { font: inherit; }
input:not([type="checkbox"]), select { min-width: 0; border: 1px solid var(--border-strong); border-radius: 7px; padding: 10px 12px; background: var(--surface-muted); color: var(--ink); }
#host, #port { width: 100%; font: 13px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; }
.tls { flex-direction: row; align-items: center; align-self: end; gap: 10px; min-height: 42px; color: var(--ink); }
.tls input { margin: 0; width: 16px; height: 16px; accent-color: var(--accent); }
.tls small { display: block; color: var(--muted); font-size: 11px; font-weight: 400; }
.buttons { display: flex; gap: 9px; }
button { border: 1px solid var(--border-strong); border-radius: 7px; padding: 10px 14px; background: var(--surface); color: var(--ink); font-size: 12px; font-weight: 600; cursor: pointer; transition: background 120ms, border-color 120ms; }
button:hover:enabled { background: var(--accent-soft); border-color: var(--accent); }
#connect { min-width: 106px; background: var(--accent); border-color: var(--accent); color: #fff; }
#connect span { margin-left: 12px; }
#connect:hover:enabled { background: var(--accent-hover); }
button:disabled { cursor: default; opacity: 0.45; }
input:disabled { opacity: 0.65; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.connection-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 24px; border-top: 1px solid var(--border); padding: 12px 24px; background: var(--surface-muted); }
#status { display: flex; align-items: baseline; gap: 9px; min-width: 0; margin: 0; font-size: 12px; overflow-wrap: anywhere; }
#status::before { content: ""; flex: 0 0 6px; width: 6px; height: 6px; border-radius: 50%; background: var(--muted); }
.help { margin: 0; font-size: 11px; color: var(--muted); }
.section-label { display: flex; justify-content: space-between; gap: 12px; margin: 28px 2px 10px; color: var(--muted); font-size: 10px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; }
.rr-sink-section { min-width: 0; background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.rr-panel-header { padding: 18px 22px; gap: 16px 24px; align-items: center; flex-wrap: wrap; }
.rr-panel-title { display: block; color: var(--ink); font-size: 15px; font-weight: 600; letter-spacing: -0.02em; }
.rr-panel-kicker { display: block; margin-top: 3px; font-size: 11px; }
.rr-panel-body { padding: 20px 22px 16px; }
.rr-time-sink-controls { display: flex; align-items: end; gap: 7px; flex-wrap: wrap; }
.rr-time-sink-control-field { gap: 4px; font-size: 10px; }
.rr-time-sink-control-field input { width: 76px; padding: 6px 8px; font-size: 11px; }
.rr-time-sink-controls button { padding: 7px 9px; font-size: 10px; }
.rr-time-sink-canvas { height: clamp(230px, 28vh, 380px); }
.rr-waterfall-sink-canvas { height: clamp(280px, 34vh, 420px); }
.rr-waterfall-sink-layout, .rr-waterfall-sink-y-label { color: var(--muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; }
.rr-waterfall-sink-status { color: var(--muted); background: var(--surface-muted); border: 1px solid var(--border); border-radius: 6px; }
.trace-legend { display: flex; justify-content: center; flex-wrap: wrap; gap: 24px; margin: 12px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 11px; }
.trace-legend li { display: flex; align-items: center; gap: 7px; }
.trace-legend li span { display: inline-block; width: 14px; height: 3px; border-radius: 3px; }
.trace-i { background: #2b8cbe; }
.trace-q { background: #31a354; }
.trace-demod { background: #756bb1; }
.log-panel { margin-top: 28px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
summary { display: flex; justify-content: space-between; gap: 16px; padding: 14px 20px; color: var(--muted); font-size: 12px; cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::before { content: "+"; color: var(--accent); font: 16px/1 ui-monospace, monospace; }
summary span { margin-left: auto; font-size: 10px; }
details[open] summary::before { content: "−"; }
pre { margin: 0; padding: 16px 20px; border-top: 1px solid var(--border); white-space: pre-wrap; overflow-wrap: anywhere; max-height: 250px; overflow: auto; color: var(--muted); font: 11px/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; }
.page-footer { display: flex; justify-content: space-between; gap: 16px; margin-top: 24px; color: var(--muted); font-size: 10px; }
:root[data-theme="dark"] { color-scheme: dark; --page: #111a17; --surface: #19241f; --surface-strong: #19241f; --surface-muted: #14201a; --ink: #e0eae4; --muted: #9aafa3; --border: #2c3e33; --border-strong: #3a5043; --accent: #5ecca0; --accent-hover: #49b78c; --accent-soft: #243b2e; --shadow: 0 4px 20px #00000012;
}
:root[data-theme="dark"] #connect { color: #10281c; }
@media (max-width: 960px) {
  main { padding: 28px 24px 20px; }
  .connection { grid-template-columns: minmax(160px, 1fr) 100px; gap: 16px; }
  .buttons { justify-self: end; }
}
@media (max-width: 540px) {
  main { padding: 24px 14px 18px; }
  .masthead { margin-bottom: 24px; }
  .masthead-note { display: none; }
  .brand-mark { width: 44px; height: 44px; border-radius: 12px; }
  .connection-heading { padding: 18px 16px 0; }
  .connection { padding: 18px 16px; grid-template-columns: minmax(0, 1fr) 84px; gap: 14px; }
  .tls { grid-column: 1 / -1; }
  .buttons { grid-column: 1 / -1; justify-self: stretch; }
  .buttons button { flex: 1; }
  .connection-footer { padding: 12px 16px; }
  .rr-panel-header { padding: 16px; }
  .rr-panel-body { padding: 14px 12px; }
  .rr-time-sink-controls { width: 100%; }
  .page-footer span:last-child { display: none; }
}
@media (prefers-reduced-motion: reduce) { button { transition: none; } }

.masthead-actions { display: flex; align-items: center; gap: 24px; }
.theme-control { gap: 4px; font-size: 10px; }
.theme-control select { padding: 6px 10px; font-size: 12px; }
/* Library waterfall CSS follows the OS; these DOM colors follow our selection. */
.rr-waterfall-sink-plot { background: var(--surface-muted); color: var(--border); }
@media (max-width: 540px) {
  .masthead { gap: 12px; }
  .brand { gap: 10px; }
  .theme-control select { max-width: 96px; }
}

.decoded-panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.decoded-panel pre {
  max-height: 20rem;
  overflow: auto;
  margin: 0;
  font-size: 0.85rem;
}