/* Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V5 (first run) ·
 * Hallmark · macrostructure: Stat-Led · tone: playful · anchor hue: multi-accent (Hum, camera-dark) ·
 * slop: pass (34, 49, 50–57) · contrast: pass (40–41) · nav: N/A (app dock) · footer: none ·
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · icons: pass (30) */

:root {
  /* paper — dark chrome panels over the live camera feed */
  --color-paper: oklch(17% 0.012 250);
  --color-paper-2: oklch(21% 0.014 250);
  --color-paper-3: oklch(26% 0.016 250);
  --color-ink: oklch(94% 0.008 250);
  --color-ink-2: oklch(88% 0.010 250);
  --color-ink-3: oklch(72% 0.012 250);
  --color-rule: oklch(40% 0.012 250);
  --color-panel: oklch(17% 0.012 250 / 0.86);
  --color-panel-2: oklch(22% 0.014 250 / 0.86);

  /* accent axes */
  --color-accent: oklch(86% 0.18 95);      /* pear — active chip */
  --color-accent-deep: oklch(72% 0.16 95);
  --color-accent-ink: oklch(24% 0.05 95);  /* ink on pear */
  --color-accent-2: oklch(66% 0.18 235);   /* sky-cyan — status dot */
  --color-accent-2-soft: oklch(66% 0.18 235 / 0.5);
  --color-accent-2-zero: oklch(66% 0.18 235 / 0);
  --color-accent-3: oklch(68% 0.24 18);    /* coral — the one big number */
  --color-accent-3-glow: oklch(68% 0.24 18 / 0.35);
  --color-focus: oklch(72% 0.18 235);
  --color-error-panel: oklch(30% 0.1 18 / 0.9);

  /* shadows */
  --shadow-text: 0 1px 2px oklch(14% 0.02 250 / 0.55);
  --shadow-panel: 0 18px 40px -20px oklch(0% 0 0 / 0.6);
  --scrim: linear-gradient(180deg, transparent 60%, oklch(14% 0.012 250 / 0.5));

  /* fonts */
  --font-display: "Plus Jakarta Sans", ui-rounded, system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", ui-rounded, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;

  /* 4pt spacing scale */
  --space-3xs: 0.125rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* type scale (1.25 major third) */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;

  /* motion */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-snap: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --dur-micro: 120ms;
  --dur-short: 220ms;
  --dur-long: 420ms;

  /* radii */
  --radius-card: 20px;
  --radius-pill: 999px;

  /* z */
  --z-base: 1;
  --z-raised: 10;
  --z-sticky: 200;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: clip;
}

html,
body {
  height: 100%;
  margin: 0;
  overscroll-behavior: none;
}

body {
  font-family: var(--font-body);
  background: var(--color-paper);
  color: var(--color-ink);
  -webkit-font-smoothing: antialiased;
}

/* ---------------------------------------------------------------
   Camera shell
--------------------------------------------------------------- */
.camera-app {
  position: fixed;
  inset: 0;
  overflow: hidden;
}

.camera-app::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
  pointer-events: none;
  background: var(--scrim);
}

.camera-app video,
.camera-app canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Display-only layers: never let them swallow clicks meant for the UI. */
  pointer-events: none;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: var(--z-raised);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-md);
  padding:
    max(var(--space-md), env(safe-area-inset-top))
    max(var(--space-md), env(safe-area-inset-right))
    max(var(--space-md), env(safe-area-inset-bottom))
    max(var(--space-md), env(safe-area-inset-left));
  pointer-events: none;
}

/* ---------------------------------------------------------------
   Topbar — wordmark + status chip
--------------------------------------------------------------- */
.topbar {
  position: relative;
  display: grid;
  /* Equal fringe columns keep the session timer viewport-centered no matter
     how wide the status pill grows (e.g. "Adjust position — legs not
     visible"); space-between flex pushed it off-center with long hints. */
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: var(--space-md);
  pointer-events: auto;
}

.topbar__actions {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2xs);
  justify-self: end;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  justify-self: start;
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-panel);
  transform: translateZ(0);
}

.wordmark {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  text-shadow: var(--shadow-text);
}

.status {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  max-width: min(100%, 24rem);
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  backdrop-filter: blur(10px);
  color: var(--color-ink-2);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
  transition: opacity var(--dur-short) var(--ease-out);
}

.status::before {
  content: "";
  flex: 0 0 auto;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent-2);
  animation: status-pulse 2.4s var(--ease-out) infinite;
}

.status--paused::before {
  background: oklch(80% 0.14 95);
  border-radius: 2px;
  width: 0.5rem;
  height: 0.5rem;
  animation: none;
}

.status.is-error {
  color: var(--color-ink);
  background: var(--color-error-panel);
}

.status.is-error::before {
  content: "✕";
  display: grid;
  place-items: center;
  background: var(--color-accent-3);
  color: white;
  font-size: 0.5rem;
  line-height: 1;
  animation: none;
  border-radius: 50%;
}

.status-group {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-2xs);
}

.status__retry {
  padding: var(--space-2xs) var(--space-sm);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

.status__retry[hidden] {
  display: none;
}

.status__retry:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

@keyframes status-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-accent-2-soft); }
  50% { box-shadow: 0 0 0 6px var(--color-accent-2-zero); }
}

/* ---------------------------------------------------------------
   Readout — the one big number
--------------------------------------------------------------- */
.readout {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}

.count {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(5.5rem, 30vw, 15rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--color-accent-3);
  text-shadow:
    var(--shadow-text),
    0 2px 24px var(--color-accent-3-glow);
  transform-origin: center bottom;
}

.count--ready {
  color: var(--color-ink-2);
  text-shadow: var(--shadow-text);
  font-size: clamp(4rem, 24vw, 10rem);
  opacity: 0.9;
}

.count.is-flash {
  text-shadow: 0 0 20px var(--color-accent-3-glow), var(--shadow-text);
  transform: scale(1.08);
}

.rep-toast {
  margin-top: var(--space-xs);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  animation: rep-toast-in var(--dur-short) var(--ease-out);
}

.rep-toast[hidden] { display: none; }

.rep-toast.is-good { background: var(--color-accent); }
.rep-toast.is-ok { background: var(--color-warning, #eab308); color: #1c1917; }
.rep-toast.is-poor { background: var(--color-danger, #f43f5e); }

@keyframes rep-toast-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.readout__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.readout__hint {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  text-align: center;
}

.readout__hint[hidden] {
  display: none;
}

/* ---------------------------------------------------------------
   Controls — collapsed floating button + expandable sheet
--------------------------------------------------------------- */
.controls {
  position: absolute;
  left: max(var(--space-md), env(safe-area-inset-left));
  right: max(var(--space-md), env(safe-area-inset-right));
  bottom: max(var(--space-md), env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  pointer-events: none;
}

.dock-toggle {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  backdrop-filter: blur(10px);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 3px 0 0 var(--color-paper-3);
  animation: dock-in var(--dur-long) var(--ease-out) both;
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out);
}

.dock-toggle:hover {
  background: var(--color-paper-3);
}

.dock-toggle:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.dock-toggle:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 var(--color-paper-3);
}

.dock-toggle:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.dock-toggle__chevron {
  display: inline-block;
  font-size: 0.875rem;
  line-height: 1;
  transition: transform var(--dur-short) var(--ease-out);
}

.dock-toggle[aria-expanded="true"] .dock-toggle__chevron {
  transform: rotate(180deg);
}

@keyframes dock-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* dock sheet — exercise switcher + recent sets */
.dock {
  pointer-events: auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-height: min(75vh, 34rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-panel);
  opacity: 0;
  transform: translateY(1rem) scale(0.98);
  transform-origin: bottom center;
  pointer-events: none;
  transition:
    opacity var(--dur-short) var(--ease-out),
    transform var(--dur-short) var(--ease-out);
}

.dock.is-open {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

/* set length — reps per set, tuned from the sheet */
.set-length {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.set-length__label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-2);
}

.set-length__stepper {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.set-length__stepper button {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: var(--text-md);
  line-height: 1;
  color: var(--color-ink);
  background: var(--color-panel-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 2px 0 0 var(--color-paper-3);
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out);
}

.set-length__stepper button:hover:not(:disabled) {
  background: var(--color-panel);
  border-color: var(--color-ink-3);
}

.set-length__stepper button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.set-length__stepper button:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: none;
}

.set-length__stepper button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.set-length__stepper output {
  min-width: 2.5rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

/* history — recent sets, in flow within the sheet */
.history {
  margin: 0;
  padding: 0;
  list-style: none;
}

.history:not(:empty) {
  border-top: 1px dashed var(--color-rule);
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
}

.history-entry {
  padding: var(--space-2xs) 0;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-2);
  border-bottom: 1px dashed var(--color-rule);
  animation: history-in var(--dur-short) var(--ease-out);
}

.history-entry:last-child {
  border-bottom: 0;
}

.history__empty {
  margin: 0;
  padding: var(--space-sm) 0;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-3);
  line-height: 1.5;
  text-align: center;
}

.history__empty[hidden] {
  display: none;
}

.history-entry:nth-child(1) {
  font-size: var(--text-md);
  color: var(--color-ink);
}

@keyframes history-in {
  from { opacity: 0; transform: translateY(-0.35rem); }
  to { opacity: 1; transform: none; }
}

/* clear history — subtle text action within the sheet */
.clear-history {
  align-self: flex-start;
  padding: var(--space-2xs) var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink-2);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  touch-action: manipulation;
  transition:
    color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.clear-history:hover {
  color: var(--color-ink);
  border-color: var(--color-rule);
}

.clear-history:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.clear-history:active {
  transform: translateY(1px);
}

/* switcher — scrollable chip rail */
.switcher {
  flex: 0 0 auto;
  min-width: 0;
  height: calc(3rem + 2 * var(--space-2xs));
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xs) var(--space-xs);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  mask-image: linear-gradient(to right, transparent, black 12px, black calc(100% - 12px), transparent);
}

.switcher::-webkit-scrollbar {
  display: none;
}

.switcher__group {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
  padding-right: var(--space-xs);
  border-right: 1px dashed var(--color-rule);
}

.switcher__group:last-child {
  border-right: none;
}

.switcher__group-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-3);
  white-space: nowrap;
}

.switcher__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-ink-3);
  text-align: center;
  letter-spacing: 0.06em;
}

.switcher button {
  flex: 0 0 auto;
  height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  white-space: nowrap;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: transparent;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  padding: var(--space-xs) var(--space-md);
  cursor: pointer;
  touch-action: manipulation;
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out);
}

.switcher button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.switcher button:hover {
  background: var(--color-panel-2);
  border-color: var(--color-ink-3);
}

.switcher button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.switcher button:active {
  transform: translateY(1px);
}

.switcher button.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
  box-shadow: 0 3px 0 0 var(--color-accent-deep);
}

/* camera toggle — Hum push button */
.camera-toggle {
  flex: 0 0 auto;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel-2);
  color: var(--color-ink);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 3px 0 0 var(--color-paper-3);
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out);
}

.camera-toggle:hover {
  background: var(--color-paper-3);
}

.pause-toggle {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.pause-toggle[aria-pressed="true"] {
  background: var(--color-accent-3);
  color: white;
  border-color: var(--color-accent-3);
  box-shadow: 0 3px 0 0 oklch(55% 0.18 18);
}

.camera-toggle:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.camera-toggle:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 var(--color-paper-3);
}

.camera-toggle:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.camera-toggle-icon {
  display: inline-block;
  transform: rotate(90deg);
}

/* ---------------------------------------------------------------
   Session timer — elapsed workout time in the topbar
--------------------------------------------------------------- */
.session-timer {
  margin: 0;
  align-self: center;
  justify-self: center;
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  border: 1px solid var(--color-accent-2-soft);
  backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
  box-shadow: 0 0 0 1px var(--color-accent-2-zero);
}

/* ---------------------------------------------------------------
   ROM bar — live range-of-motion between the down/up gates
--------------------------------------------------------------- */
.rom-bar {
  position: relative;
  width: min(100%, 20rem);
  height: 0.75rem;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-paper-3);
  box-shadow: var(--shadow-text);
  overflow: hidden;
}

.rom-bar__label {
  flex: 0 0 auto;
  padding-left: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.rom-bar__fill {
  flex: 1;
  height: 100%;
  width: 0%;
  border-radius: var(--radius-pill);
  background: var(--color-accent-2);
  transition: width var(--dur-micro) var(--ease-out);
}

.rom-bar.is-complete .rom-bar__fill {
  background: var(--color-accent-3);
  box-shadow: 0 0 12px var(--color-accent-3-glow);
}

/* ---------------------------------------------------------------
   Rest timer — countdown chip under the readout
--------------------------------------------------------------- */
.rest-timer {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
  animation: dock-in var(--dur-long) var(--ease-out) both;
}

.rest-timer::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent-2);
  animation: status-pulse 1.6s var(--ease-out) infinite;
}

/* ---------------------------------------------------------------
   Correction — thumb-zone +/− buttons on the side rails
--------------------------------------------------------------- */
.correction {
  position: absolute;
  left: max(var(--space-md), env(safe-area-inset-left));
  right: max(var(--space-md), env(safe-area-inset-right));
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.correction__button {
  pointer-events: auto;
  width: clamp(3.5rem, 11vw, 4.5rem);
  height: clamp(3.5rem, 11vw, 4.5rem);
  display: grid;
  place-items: center;
  border: 1px solid var(--color-rule);
  border-radius: 50%;
  background: var(--color-panel);
  backdrop-filter: blur(10px);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: var(--shadow-panel), 0 3px 0 0 var(--color-paper-3);
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    box-shadow var(--dur-short) var(--ease-out);
}

.correction__button:hover {
  background: var(--color-paper-3);
}

.correction__button:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.correction__button:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-panel), 0 1px 0 0 var(--color-paper-3);
}

/* ---------------------------------------------------------------
   Progress — streak, weekly summary, and 30-day heatmap in the dock
--------------------------------------------------------------- */
.progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.progress__heading {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.dock__section-heading {
  margin: var(--space-sm) 0 0;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-3);
}

.progress__stat {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--color-ink);
}

.progress__stat--muted {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-2);
}

.progress__hint {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-ink-3);
  line-height: 1.4;
}

.progress__hint[hidden] {
  display: none;
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-2xs);
  margin-top: var(--space-xs);
}

.heatmap__cell {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--color-paper-3);
}

.heatmap__cell--1 {
  background: color-mix(in srgb, var(--color-accent-2) 30%, var(--color-panel-2));
}

.heatmap__cell--2 {
  background: color-mix(in srgb, var(--color-accent-2) 60%, var(--color-panel-2));
}

.heatmap__cell--3 {
  background: color-mix(in srgb, var(--color-accent-3) 60%, var(--color-panel-2));
}

.heatmap__cell--4 {
  background: var(--color-accent-3);
}

.heatmap__legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-xs);
  margin-top: var(--space-2xs);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-ink-3);
}

.heatmap__legend-cells {
  display: flex;
  gap: 2px;
}

.heatmap__legend-cells .heatmap__cell {
  width: 0.75rem;
  height: 0.75rem;
  aspect-ratio: auto;
}

/* ---------------------------------------------------------------
   Calibration — per-exercise ROM gate status and reset in the dock
--------------------------------------------------------------- */
.calibration {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.calibration__label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-2);
}

.calibration__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calibration__status {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.calibration__reset {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2xs) var(--space-sm);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel-2);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color var(--dur-short) var(--ease-out);
}

.calibration__reset:hover {
  background: var(--color-paper-3);
}

.calibration__reset:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------
   Voice controls — announcement toggles in the dock
--------------------------------------------------------------- */
.voice-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.voice-controls__row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-2);
  cursor: pointer;
  touch-action: manipulation;
}

.voice-controls__row input {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-accent-3);
  cursor: pointer;
}

/* ---------------------------------------------------------------
    Tablet / desktop — centre the controls
--------------------------------------------------------------- */
@media (min-width: 48rem) {
  .controls {
    width: min(42rem, calc(100% - 2 * var(--space-md)));
    margin-inline: auto;
  }
}

@media (orientation: landscape) and (max-height: 30rem) {
  .overlay {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
  }
  .readout {
    flex: 1 1 50%;
  }
  .controls {
    position: relative;
    inset: auto;
    flex: 0 0 20rem;
    align-self: stretch;
  }
  .correction {
    top: 60%;
  }
}

/* confetti burst */
.confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 30;
}

.confetti__piece {
  position: absolute;
  top: 40%;
  font-size: 1.25rem;
  animation: confetti-fall 900ms var(--ease-out) forwards;
}

@keyframes confetti-fall {
  0% { transform: translateY(-20vh) rotate(0deg) scale(1); opacity: 1; }
  100% { transform: translateY(60vh) rotate(720deg) scale(0.8); opacity: 0; }
}

/* ---------------------------------------------------------------
   Reduced motion
--------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }

  .status::before {
    animation: none;
  }
}

/* ---------------------------------------------------------------
   Flash messages — transient notices rendered above the app
--------------------------------------------------------------- */
.flash {
  position: fixed;
  top: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  max-width: min(30rem, calc(100% - 2 * var(--space-md)));
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: var(--shadow-panel);
}

.flash--notice {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.flash--alert {
  background: var(--color-error-panel);
  color: var(--color-ink);
}

/* ---------------------------------------------------------------
   Auth pages — sign in / sign up
--------------------------------------------------------------- */
.auth {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  background: var(--color-paper);
}

.auth__card {
  width: min(24rem, 100%);
  padding: var(--space-xl) var(--space-lg);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-panel-2);
  box-shadow: var(--shadow-panel);
}

.auth__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-ink);
}

.auth__subtitle {
  margin: var(--space-2xs) 0 0;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.auth__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.field--row {
  flex-direction: row;
  align-items: center;
  gap: var(--space-xs);
}

.field__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.field__label--inline {
  text-transform: none;
  letter-spacing: 0;
  font-size: var(--text-sm);
  font-weight: 500;
}

.field__hint {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-ink-3);
}

.field__input {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-md);
}

.field__input:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.field__check {
  accent-color: var(--color-accent);
  width: 1.125rem;
  height: 1.125rem;
}

.auth__submit {
  width: 100%;
  padding: var(--space-md);
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

.auth__submit:hover {
  background: var(--color-accent-deep);
}

.auth__submit:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.auth__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}

.auth__links p {
  margin: 0;
}

.auth__links a {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent-2);
  text-decoration: none;
}

.auth__links a:hover {
  text-decoration: underline;
}

.auth__errors {
  padding: var(--space-sm) var(--space-md);
  border: 1px solid oklch(60% 0.18 18 / 0.6);
  border-radius: var(--radius-card);
  background: var(--color-error-panel);
  color: var(--color-ink);
}

.auth__errors ul {
  margin: 0;
  padding-left: var(--space-lg);
  font-family: var(--font-body);
  font-size: var(--text-sm);
}

/* ---------------------------------------------------------------
   Account row — sign-in state in the dock
--------------------------------------------------------------- */
.account {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-rule);
}

.account__label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.account__action {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: var(--space-2xs) var(--space-sm);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-panel-2);
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
}

.account__action:hover {
  background: var(--color-paper-3);
}.account__action:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------
   Sync row — backup status in the dock
--------------------------------------------------------------- */
.sync {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.sync__label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-2);
}

.sync__status {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}

.sync__link {
  color: var(--color-accent-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------------------------------------------------------------
   Model gate — first-run pose model download
--------------------------------------------------------------- */
.model-gate {
  position: fixed;
  inset: 0;
  z-index: var(--z-sticky);
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  background: oklch(14% 0.012 250 / 0.94);
  backdrop-filter: blur(14px);
}

.model-gate[hidden] {
  display: none;
}

.model-gate__panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  max-width: 24rem;
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  background: var(--color-panel-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-panel);
}

.model-gate__mark {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-panel);
}

.model-gate__title {
  margin: var(--space-xs) 0 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.model-gate__copy {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-2);
}

.model-gate__copy strong {
  color: var(--color-ink);
  font-weight: 700;
}

.model-gate__size {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-accent);
}

.model-gate__download {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
  touch-action: manipulation;
  box-shadow: 0 3px 0 0 var(--color-accent-deep);
  transition:
    transform var(--dur-micro) var(--ease-out),
    box-shadow var(--dur-micro) var(--ease-out),
    opacity var(--dur-short) var(--ease-out);
}

.model-gate__download:hover {
  filter: brightness(1.04);
}

.model-gate__download:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.model-gate__download:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 0 var(--color-accent-deep);
}

.model-gate__download:disabled {
  opacity: 0.6;
  cursor: progress;
}

.model-gate__progress {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  width: 100%;
  margin-top: var(--space-sm);
}

.model-gate__progress-track {
  width: 100%;
  height: 0.625rem;
  border-radius: var(--radius-pill);
  background: var(--color-paper-3);
  overflow: hidden;
}

.model-gate__progress-fill {
  height: 100%;
  width: 0%;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  transition: width var(--dur-micro) var(--ease-out);
}

.model-gate__progress-text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-2);
}

.model-gate__error {
  margin: 0;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent-3);
}

/* ---------------------------------------------------------------
   Summary — post-workout sheet
--------------------------------------------------------------- */
.summary {
  position: fixed;
  inset: 0;
  z-index: var(--z-sticky);
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  background: oklch(14% 0.012 250 / 0.94);
  backdrop-filter: blur(14px);
  /* The parent .overlay disables pointer events; opt back in like the
     topbar and dock controls so the sheet is clickable. */
  pointer-events: auto;
}

.summary[hidden] {
  display: none;
}

.summary__panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  max-width: 26rem;
  max-height: min(85dvh, 40rem);
  overflow-y: auto;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-panel-2);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-panel);
}

.summary__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.summary__empty {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-2);
}

.summary__exercise {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-accent);
}

.summary__totals {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.summary__score {
  margin: var(--space-sm) 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-ink);
}

.summary__components,
.summary__note {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-2);
}

.summary__heading {
  margin: var(--space-sm) 0 0;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-2);
}

.summary__list {
  margin: 0;
  padding-left: var(--space-lg);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink);
}

.summary__action {
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
  touch-action: manipulation;
}

.summary__action:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}