.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-canvas {
  display: block;
  width: 100%;
  height: clamp(200px, 20vh, 470px);
  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;
  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 {
  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;
}

@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 dark;
  --bg: #eef3f5;
  --text: #172026;
  --surface: #ffffff;
  --surface-strong: #f8fafb;
  --surface-muted: #edf2f4;
  --muted: #63717b;
  --accent: #007a6c;
  --accent-strong: #075c94;
  --accent-text: #ffffff;
  --border: #d4dde3;
  --border-strong: #aebec8;
  --shadow: 0 14px 38px rgba(22, 32, 42, 0.10);
  --radius: 8px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111417;
    --text: #edf2f5;
    --surface: #1a1f24;
    --surface-strong: #20262c;
    --surface-muted: #15191d;
    --muted: #9ba9b4;
    --accent: #28a790;
    --accent-strong: #5aa0d4;
    --border: #303940;
    --border-strong: #46535d;
    --shadow: 0 14px 38px rgba(0, 0, 0, 0.28);
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  padding: 0.45rem 0.85rem;
  white-space: nowrap;
}

button:not(:disabled) {
  cursor: pointer;
}

button:not(:disabled):hover {
  border-color: var(--accent);
}

button:disabled,
input:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

input:not([type="range"]),
select {
  min-width: 0;
  height: 38px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  padding: 0.45rem 0.6rem;
}

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

.rr-rtlsdr-app {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 20px 0 28px;
  display: grid;
  gap: 16px;
}

.rr-rtlsdr-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-width: 0;
}

.rr-rtlsdr-title-group {
  min-width: 0;
}

.rr-rtlsdr-eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.rr-rtlsdr-header h1 {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.15;
  letter-spacing: 0;
}

.rr-rtlsdr-start {
  min-width: 104px;
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
}

.rr-rtlsdr-start-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rr-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.rr-rtlsdr-controls {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(260px, 1fr) minmax(220px, 0.8fr);
  gap: 12px;
  align-items: end;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.rr-rtlsdr-field {
  display: grid;
  gap: 6px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.rr-rtlsdr-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.rr-rtlsdr-volume input {
  width: 100%;
  accent-color: var(--accent);
}

.rr-rtlsdr-visuals {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.85fr);
  gap: 16px;
  align-items: start;
}

.rr-sink-section {
  min-width: 0;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.rr-panel-header {
  padding: 0.65rem 0.85rem;
}

.rr-panel-body {
  padding: 0.85rem;
}

.rr-panel-title {
  margin-right: 0.55rem;
}

.rr-time-sink-controls {
  display: none;
}

.rr-waterfall-sink-canvas {
  height: clamp(330px, 48vh, 560px);
}

.rr-time-sink-canvas {
  height: clamp(220px, 26vh, 360px);
}

.rr-rtlsdr-log-panel {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.rr-rtlsdr-log-panel h2 {
  margin: 0;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-strong);
  font-size: 0.95rem;
  line-height: 1.25;
}

#log-output {
  margin: 0;
  min-height: 130px;
  max-height: 260px;
  overflow: auto;
  padding: 0.85rem;
  background: var(--surface-muted);
  color: var(--text);
  font-family:
    ui-monospace,
    SFMono-Regular,
    Menlo,
    Consolas,
    monospace;
  font-size: 0.82rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

@media (max-width: 980px) {
  .rr-rtlsdr-controls,
  .rr-rtlsdr-visuals {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .rr-rtlsdr-app {
    width: min(100% - 20px, 1440px);
    padding-top: 12px;
  }

  .rr-rtlsdr-header {
    align-items: stretch;
    flex-direction: column;
  }

  .rr-rtlsdr-start {
    flex: 1;
  }

  .rr-rtlsdr-start-group {
    width: 100%;
  }

  .rr-rtlsdr-start-group select {
    flex: 1;
  }

  .rr-rtlsdr-input-row {
    grid-template-columns: 1fr;
  }
}