/* widget.css — shared widget chrome for hr_monitor.html and overlay.html.
   Single source of truth for everything that MUST render identically in the
   monitor preview and the OBS overlay. Page-specific chrome (control panel,
   chroma-key backgrounds, waiting state, crop guide) stays in its own file.

   Colour vars (--warn-high, --warn-low, --warn-crash, --warn-palp) are
   declared by each page. */

/* Container that holds the widget card. width: fit-content is load-bearing on
   desktop / OBS so the widget-row hugs its content (cropping and the OBS
   source-size ResizeObserver both rely on this). 500 px cap stops runaway
   growth; the mobile media query below relaxes to 100% so the widget adapts
   to a narrow viewport instead of overflowing it.

   --full-widgets-width is set by hr_monitor.html's ResizeObserver whenever
   every widget is on — it captures the widget's natural "fully populated"
   width, then uses it as a min-width floor for every other toggle combo so
   turning widgets off + back on re-inflates the card to its original size
   (without this, Chart.js canvases inside display:none kept shrunken
   intrinsic sizes and the live HR trace stayed pinned at a ~thin width). */
#overlay-zone .widget-row {
  display: flex;
  flex-direction: column;
  gap: inherit;
  width: fit-content;
  max-width: 500px;
  min-width: 0;
}
body:not(.no-hr):not(.no-hrv):not(.no-live-hr):not(.no-inline-trends) #overlay-zone .widget-row {
  min-width: var(--full-widgets-width, 0);
}

/* Widget card + grid. auto auto columns so each column hugs content; grid
   collapses to single column when HRV is hidden (see toggle rules below). */
#hr-widget {
  background: #0a0a0a;
  border: 1px solid #1f1f1f;
  border-radius: 16px;
  padding: 14px 18px;
  position: relative;
  transition: border-color 0.3s, box-shadow 0.3s;
  display: grid;
  grid-template-columns: auto auto;
  /* Rows auto-size so hidden content collapses to 0 instead of leaving
     68 px / 14 px reservations behind when live trace or pips are toggled off. */
  grid-template-rows: auto auto auto;
  gap: 10px 16px;
  align-items: start;
}
#hr-widget.warn-crash {
  border-color: var(--warn-crash);
  box-shadow: 0 0 0 1px var(--warn-crash), 0 0 24px rgba(186,117,23,0.2);
}

#hr-widget > .widget-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 0;
  position: relative;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.widget-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #8a8a8a;
  text-transform: uppercase;
}
.heart-icon {
  width: 22px;
  height: 22px;
  fill: currentColor;
  animation: heartbeat 1s ease-in-out infinite;
  transition: color 0.4s;
}
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.18); }
  30% { transform: scale(1); }
  45% { transform: scale(1.12); }
  60% { transform: scale(1); }
}

.palp-chip {
  display: none;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(215,108,186,0.14);
  border: 1px solid var(--warn-palp);
  color: var(--warn-palp);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}
.palp-chip.active { display: inline-flex; }

/* Contact chip: shows next to BPM when the strap reports it's not in
   skin contact. Only meaningful on straps whose firmware actually
   populates the contact-status bits (most Polar, Wahoo, newer Coospo).
   Driven by body.contact-off from hr_monitor.html's onHRNotification. */
.contact-chip {
  display: none;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(232,152,88,0.12);
  border: 1px solid var(--warn-high);
  color: var(--warn-high);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
body.contact-off .contact-chip { display: inline-flex; }
.contact-chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn-high);
}
.palp-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn-palp);
  box-shadow: 0 0 6px var(--warn-palp);
}

/* Connection indicator. Absolute so the reconnecting label can't push the
   widget wider when it appears. */
.conn-indicator {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}
.conn-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #3a3a3a;
  flex-shrink: 0;
  transition: background 0.3s, box-shadow 0.3s;
}
.conn-text {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: #8a8a8a;
  text-transform: uppercase;
  font-weight: 600;
  display: none;
}
body.conn-live .conn-dot {
  background: #5DCAA5;
  box-shadow: 0 0 6px rgba(93,202,165,0.6);
}
body.conn-reconnecting .conn-dot {
  background: #6a6a6a;
  animation: conn-pulse 1.4s ease-in-out infinite;
}
body.conn-reconnecting .conn-text { display: inline; }
@keyframes conn-pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

/* HR number + live trace. Number-row sits in grid col 1 row 2. */
#hr-widget .number-row {
  display: flex;
  align-items: stretch;
  gap: 14px;
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
}
#hr-widget .big-number {
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
  font-weight: 900;
  font-size: 64px;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  transition: color 0.4s;
  text-align: left;
  padding: 0;
  flex: 0 0 auto;
}
/* min-width 140 so live trace reads as a line when visible; when hidden the
   whole element drops out of flow and column 1 collapses to big-number.
   min-width: 0 keeps the canvas's intrinsic HTML width attribute from
   propagating up and locking the grid wide after a toggle. */
#hr-widget .inline-live-trace {
  flex: 1 1 0;
  flex-basis: 140px;
  min-width: 0;
  position: relative;
  padding: 6px 0 10px;
  height: 68px;
  max-height: 68px;
  overflow: hidden;
}
#hr-widget .inline-live-trace canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: 100% !important;
}

#hr-widget #hr-pips {
  grid-column: 1;
  grid-row: 3;
  margin-top: 6px;
}
.pips {
  display: flex;
  gap: 6px;
  height: 6px;
}
.pip {
  flex: 1;
  background: #1a1a1a;
  border-radius: 2px;
  transition: background 0.4s;
}

.stage-low { color: #7DB8E8; }
.stage-low .pip.active { background: #7DB8E8; }
.stage-normal { color: #B8D97E; }
.stage-normal .pip.active { background: #B8D97E; }
.stage-elevated { color: #F0C75E; }
.stage-elevated .pip.active { background: #F0C75E; }
.stage-high { color: #E89858; }
.stage-high .pip.active { background: #E89858; }
.stage-critical { color: #E24B4A; }
.stage-critical .pip.active { background: #E24B4A; }

/* HRV readout (grid column 2). */
#hr-widget .compact-hrv {
  grid-column: 2;
  grid-row: 2 / 4;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  border-left: 1px solid #1f1f1f;
  padding-left: 16px;
}
.compact-hrv-label {
  font-size: 12px;
  color: #c8c8c8;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 3px;
}
.compact-hrv-value {
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
  font-weight: 900;
  font-size: 36px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  transition: color 0.4s;
}
.compact-hrv-unit {
  font-size: 11px;
  color: #9a9a9a;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  margin-top: 4px;
}

/* Combined HR+RMSSD trend at the bottom of the card. Canvas CSS constraint
   required so Chart.js responsive mode can't grow past the 64px parent.
   min-width: 0 stops the canvas's intrinsic 300×150 default from inflating
   the grid's content-max and holding the card wide after toggling. */
#hr-widget > .compact-trend {
  grid-column: 1 / -1;
  grid-row: 4;
  height: 64px;
  min-width: 0;
  position: relative;
  margin-top: 12px;
  padding: 6px 0 4px;
  border-top: 1px solid #1f1f1f;
  overflow: hidden;
}
#hr-widget > .compact-trend canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: 100% !important;
}

/* Warning banner. In-card width is fixed so the card size is stable across
   warning strings. Above-slot banner sizes to content (see warning-slot rules). */
.warning-banner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  /* Widened from 150 so full strings render without the "Heart rate hi..."
     truncation. nowrap + ellipsis stay as a safety net for longer labels. */
  min-width: 190px;
  width: auto;
  max-width: 240px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  margin-left: auto;
  transition: opacity 0.25s, border-color 0.3s, background 0.3s;
}
.warning-banner.active {
  opacity: 1;
  animation: warning-flash 1.5s ease-in-out infinite;
}
@keyframes warning-flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}
.warning-banner-icon {
  width: 14px;
  height: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.warning-banner-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}
.warning-banner-text {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.warning-banner.warn-high { border-color: var(--warn-high); background: rgba(232,152,88,0.1); }
.warning-banner.warn-high .warning-banner-icon,
.warning-banner.warn-high .warning-banner-text { color: var(--warn-high); }
.warning-banner.warn-low { border-color: var(--warn-low); background: rgba(125,184,232,0.1); }
.warning-banner.warn-low .warning-banner-icon,
.warning-banner.warn-low .warning-banner-text { color: var(--warn-low); }
.warning-banner.warn-crash { border-color: var(--warn-crash); background: rgba(226,75,74,0.14); }
.warning-banner.warn-crash .warning-banner-icon,
.warning-banner.warn-crash .warning-banner-text { color: var(--warn-crash); }
.warning-banner.warn-palp { border-color: var(--warn-palp); background: rgba(215,108,186,0.14); }
.warning-banner.warn-palp .warning-banner-icon,
.warning-banner.warn-palp .warning-banner-text { color: var(--warn-palp); }
.warning-banner.status-reconnecting { border-color: #6a6a6a; background: rgba(100,100,100,0.14); }
.warning-banner.status-reconnecting .warning-banner-icon,
.warning-banner.status-reconnecting .warning-banner-text { color: #b8b8b8; }
.warning-banner.status-reconnecting .warning-banner-icon svg { animation: conn-pulse 1.4s ease-in-out infinite; }

/* Above-slot banner: reserved space above the widget, banner can grow to
   fit its text (no 150px cap; longer strings read in full, no truncation). */
.warning-slot-above { display: none; }
body.warning-above .warning-slot-above {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  height: 34px;
  padding: 2px 0;
}
body.warning-above .warning-slot-above .warning-banner {
  width: auto;
  min-width: 0;
  max-width: 100%;
  margin-left: 0;
}
body.warning-above .widget-header > .warning-banner { display: none !important; }
body:not(.warning-above) .warning-slot-above { display: none !important; }

/* Widget visibility toggles — body classes so both files use the same hooks. */
body.no-palp-chip .palp-chip,
body.no-palp-chip #palp-chip { display: none !important; }
body.no-warning .warning-banner { display: none !important; }
body.warning-above.no-warning .warning-slot-above { display: none !important; }
body.no-conn-dot .conn-indicator { display: none !important; }

/* HR off hides the BPM readout AND the pips — pips are the HR zone readout,
   so showing them without a number beside them reads as orphaned. */
body.no-hr #hr-widget .widget-label,
body.no-hr #hr-widget .heart-icon,
body.no-hr #hr-widget .palp-chip,
body.no-hr #hr-widget .big-number,
body.no-hr #hr-widget #hr-pips { display: none !important; }

/* HRV off: hide HRV column and collapse grid to a single content-hugging col. */
body.no-hrv #hr-widget .compact-hrv { display: none !important; }
body.no-hrv #hr-widget { grid-template-columns: auto !important; }

/* HR off + live trace off = nothing in the HR column. HRV takes the whole
   card; the column divider + its left-padding aren't meaningful with nothing
   to the left of them. */
body.no-hr.no-live-hr #hr-widget { grid-template-columns: auto !important; }
body.no-hr.no-live-hr #hr-widget .compact-hrv {
  grid-column: 1 !important;
  grid-row: 2 / 4 !important;
  border-left: none !important;
  padding-left: 0 !important;
  align-items: flex-start !important;
}

/* When the compact trend is the only visible element, drop its top margin +
   divider line — there's nothing above it to separate it from. */
body.no-hr.no-hrv.no-live-hr #hr-widget > .compact-trend {
  margin-top: 0 !important;
  border-top: none !important;
  padding-top: 0 !important;
}

/* Hide the widget only when literally nothing is visible inside. Keeping the
   widget when just HR + HRV are off lets a "charts only" layout work:
   pips + live trace + compact trend with no numbers. */
body.no-hr.no-hrv.no-live-hr.no-inline-trends #hr-widget { display: none !important; }

body.no-live-hr #hr-widget .inline-live-trace { display: none !important; }
body.no-inline-trends #hr-widget > .compact-trend { display: none !important; }

/* ===== Narrow viewport (≤480px, e.g. phones) =====
   The widget's max-content width on desktop is ~380px (big-number + 140 px
   live trace + HRV column). On a 375 or 390-wide phone, content-sized grid
   columns overflow the viewport. Switch col 1 to minmax(0, 1fr) so the HR
   column shrinks with available width, and drop the big-number font size a
   notch so 3-digit readouts still fit. */
@media (max-width: 480px) {
  /* On mobile, match desktop's shrink-to-fit behaviour so turning
     off widgets visibly shrinks the card. Still cap at 100vw so a
     fully populated widget doesn't overflow the screen. */
  #overlay-zone .widget-row {
    width: fit-content;
    max-width: 100%;
  }
  #hr-widget {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 12px;
    padding: 12px 14px;
  }
  #hr-widget .big-number { font-size: 56px; }
  #hr-widget .number-row { gap: 10px; min-width: 0; }
  #hr-widget .inline-live-trace {
    flex-basis: 0;
    height: 56px;
    max-height: 56px;
  }
  #hr-widget .compact-hrv {
    padding-left: 12px;
  }
  #hr-widget .compact-hrv-value { font-size: 30px; }
  #hr-widget > .compact-trend { height: 56px; }
}