/* QT-RR Dynamics interactive panels.
   Scoped to .qtrr-*; the page shell and hub cards live in ../../projects.css. */

/* ---------- the app ---------- */

.qtrr-intro {
  max-width: 62ch;
}

.qtrr-app {
  --qtrr-gap: 0.75rem;
  margin: 1.25rem 0;
}

.qtrr-panels {
  display: flex;
  flex-direction: column;
  gap: var(--qtrr-gap);
}

.qtrr-panel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--qtrr-gap);
}

.qtrr-panel {
  /* The site styles <figure> as a wrapping flex row, which turns each canvas
     into a flex item. These panels stack, so opt back into normal block flow -
     otherwise a canvas narrower than the panel is pushed to one side. */
  display: block;
  margin: 0;
  padding: 0.5rem 0.6rem 0.6rem;
  border: 1px solid var(--global-border-color);
  border-radius: 4px;
  background: var(--global-bg-color);
}

.qtrr-panel figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  font-family: inherit;
  line-height: 1.3;
}

.qtrr-panel__title {
  font-size: 0.82em;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--global-text-color);
}

.qtrr-panel__note {
  font-size: 0.78em;
  color: var(--global-text-color-light);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* `display: block` below would otherwise beat the `hidden` attribute, so the
   inactive ECG view has to be switched off explicitly. */
.qtrr-canvas[hidden] { display: none; }

.qtrr-canvas {
  display: block;
  width: 100%;
  height: 180px;
  border-radius: 2px;
}

.qtrr-panel--hyst .qtrr-canvas { height: 260px; }

/* The averaged-beat view is one beat wide, so it wants a squarer frame than
   the 5 s strip: narrower, taller, centred in the panel. */
.qtrr-panel--ecg .qtrr-canvas--beats {
  max-width: 520px;
  height: 340px;
  margin: 0 auto;
}
.qtrr-panel--timeline .qtrr-canvas { height: 130px; }

.qtrr-canvas--interactive {
  cursor: ew-resize;
  touch-action: none;
}

.qtrr-canvas--interactive:focus-visible {
  outline: 2px solid var(--global-link-color);
  outline-offset: 2px;
}

/* ---------- bars & controls ---------- */

.qtrr-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
}

.qtrr-bar--top {
  justify-content: space-between;
  margin-bottom: var(--qtrr-gap);
}

.qtrr-bar--controls {
  margin-top: var(--qtrr-gap);
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--global-border-color);
  border-radius: 4px;
  background: var(--global-footer-bg-color);
}

.qtrr-subjects,
.qtrr-speed {
  display: inline-flex;
  gap: 0.3rem;
}

.qtrr-chip {
  min-height: 2.1rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--global-border-color);
  border-radius: 999px;
  background: var(--global-bg-color);
  color: var(--global-text-color);
  font: inherit;
  font-size: 0.82em;
  line-height: 1.2;
  cursor: pointer;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.qtrr-chip--mini {
  min-height: 1.6rem;
  padding: 0.12rem 0.55rem;
  font-size: 0.75em;
}

.qtrr-viewtoggle {
  display: inline-flex;
  gap: 0.25rem;
  margin-right: auto;
  margin-left: 0.6rem;
}

.qtrr-chip:hover { border-color: var(--global-link-color); }

.qtrr-chip.is-active {
  border-color: var(--global-link-color);
  background: var(--global-link-color);
  color: #fff;
  font-weight: 600;
}

.qtrr-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--global-link-color);
  border-radius: 999px;
  background: var(--global-link-color);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

.qtrr-btn__glyph { font-size: 0.9em; line-height: 1; }

.qtrr-clock {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-size: 0.9em;
}

.qtrr-clock__total { color: var(--global-text-color-light); }

.qtrr-status {
  margin: 0;
  font-size: 0.8em;
  color: var(--global-text-color-light);
}

.qtrr-status.is-error { color: var(--global-text-color); }

.qtrr-retry {
  margin-left: 0.5rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--global-link-color);
  border-radius: 999px;
  background: transparent;
  color: var(--global-link-color);
  font: inherit;
  font-size: 0.95em;
  cursor: pointer;
}

.qtrr-toggle,
.qtrr-field {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82em;
  color: var(--global-text-color);
  cursor: pointer;
  min-height: 2.1rem;
}

.qtrr-field select {
  padding: 0.15rem 0.3rem;
  border: 1px solid var(--global-border-color);
  border-radius: 3px;
  background: var(--global-bg-color);
  color: var(--global-text-color);
  font: inherit;
  font-size: 1em;
}

.qtrr-details {
  margin-top: var(--qtrr-gap);
  font-size: 0.95em;
}

.qtrr-details > summary,
.qtrr-methods > summary {
  cursor: pointer;
  font-size: 0.85em;
  font-weight: 600;
  color: var(--global-link-color);
}

.qtrr-details__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  padding: 0.6rem 0 0.2rem;
}

.qtrr-keys {
  margin: 0.8rem 0 0;
  font-size: 0.75em;
  color: var(--global-text-color-light);
}

.qtrr-keys kbd {
  padding: 0.05em 0.35em;
  border: 1px solid var(--global-border-color);
  border-radius: 3px;
  font-family: inherit;
  font-size: 0.95em;
}

.qtrr-note {
  padding: 0.7rem 0.9rem;
  border-left: 3px solid var(--global-border-color);
  background: var(--global-footer-bg-color);
  border-radius: 0 3px 3px 0;
  font-size: 0.9em;
}

.qtrr-readmore {
  margin: 1.5rem 0;
  max-width: 68ch;
}

.qtrr-readmore h2 {
  margin-bottom: 0.4em;
  font-size: 1.1em;
}

.qtrr-readmore ul {
  margin: 0;
  padding-left: 1.1rem;
}

.qtrr-readmore li {
  margin-bottom: 0.5em;
  font-size: 0.9em;
  line-height: 1.5;
}

.qtrr-methods {
  margin: 1.5rem 0;
  max-width: 68ch;
}

.qtrr-methods p {
  font-size: 0.92em;
}

/* ---------- responsive ---------- */

@media (min-width: 900px) {
  .qtrr-panel-row { grid-template-columns: 1fr 1fr; }
  .qtrr-panel--ecg .qtrr-canvas { height: 200px; }
  .qtrr-panel--ecg .qtrr-canvas--beats { height: 340px; }
}

@media (max-width: 640px) {
  .qtrr-panel--hyst .qtrr-canvas { height: 230px; }
  .qtrr-panel--ecg .qtrr-canvas--beats { height: 300px; }

  .qtrr-viewtoggle { margin-left: 0; }
  .qtrr-chip--mini { min-height: 2rem; padding: 0.3rem 0.6rem; }

  /* keep playback controls reachable without scrolling past the plots */
  .qtrr-bar--controls {
    position: sticky;
    bottom: 0;
    z-index: 3;
    margin-top: var(--qtrr-gap);
    border-radius: 4px 4px 0 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.12);
    padding-bottom: calc(0.6rem + env(safe-area-inset-bottom, 0px));
  }

  .qtrr-chip { min-height: 2.4rem; padding: 0.4rem 0.8rem; }
  .qtrr-toggle, .qtrr-field { min-height: 2.4rem; }
}