.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);
}

/*
 * 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;
  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: #edf2f4;
  --text: #172026;
  --surface: #fff;
  --surface-strong: #f7fafb;
  --surface-muted: #eef3f5;
  --muted: #64727c;
  --accent: #08796c;
  --accent-text: #fff;
  --border: #d1dce2;
  --border-strong: #aabac4;
  --shadow: 0 12px 32px rgba(20, 35, 45, 0.09);
  --radius: 9px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101417;
    --text: #edf2f5;
    --surface: #1a1f24;
    --surface-strong: #20262c;
    --surface-muted: #14191d;
    --muted: #9ba9b4;
    --accent: #27a48e;
    --accent-text: #071713;
    --border: #303940;
    --border-strong: #48555e;
    --shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input { font: inherit; }

button {
  min-height: 40px;
  padding: 0.48rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
}

button:not(:disabled) { cursor: pointer; }
button:not(:disabled):hover { border-color: var(--accent); }
button:disabled, input:disabled { cursor: not-allowed; opacity: 0.55; }

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 750;
}

input:not([type="checkbox"]) {
  width: 100%;
  min-width: 0;
  height: 40px;
  padding: 0.48rem 0.62rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

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

.survey-app {
  width: min(1600px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 32px;
  display: grid;
  gap: 16px;
}

.survey-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

h1 { margin: 0; font-size: clamp(1.75rem, 4vw, 2.5rem); line-height: 1.08; }
.lede { margin: 0.5rem 0 0; color: var(--muted); }

.primary-actions, .download-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.panel, .status-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.controls {
  padding: 14px;
  display: grid;
  grid-template-columns: repeat(4, minmax(170px, 1fr));
  gap: 12px;
  align-items: end;
}

.controls label, .advanced-grid label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.advanced { grid-column: 1 / -1; }
.advanced summary { color: var(--muted); cursor: pointer; font-weight: 700; }
.advanced-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(190px, 1fr));
  gap: 12px;
  align-items: end;
}

.advanced-grid label.checkbox {
  min-height: 40px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 9px;
}

.status-panel {
  padding: 0.8rem 1rem;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.status-label {
  color: var(--accent);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.plots { display: grid; gap: 16px; }
.rr-panel-header { padding: 0.65rem 0.85rem; }
.rr-panel-body { padding: 0.85rem; }

.downloads {
  padding: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.downloads h2, .log-panel h2 { margin: 0; font-size: 0.98rem; }
.downloads p { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.84rem; }

.log-panel { overflow: hidden; }
.log-panel h2 {
  padding: 0.68rem 0.85rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-strong);
}

#log-output {
  margin: 0;
  min-height: 120px;
  max-height: 280px;
  overflow: auto;
  padding: 0.85rem;
  background: var(--surface-muted);
  color: var(--text);
  font: 0.8rem/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
}

@media (max-width: 980px) {
  .controls { grid-template-columns: repeat(2, minmax(170px, 1fr)); }
  .advanced-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .survey-app { width: min(100% - 20px, 1600px); padding-top: 12px; }
  .survey-header, .downloads { align-items: stretch; flex-direction: column; }
  .controls { grid-template-columns: 1fr; }
  .primary-actions button, .download-actions button { flex: 1; }
  .status-panel { align-items: start; flex-direction: column; }
}