/*
 * CubyTimer web. The tokens mirror app/src/main/java/.../ui/theme (Color.kt, Theme.kt,
 * Shape.kt, Spacing.kt, Motion.kt), so the page and the app read as one product.
 */

:root {
  color-scheme: light;
  --primary: #5E43C9;
  --on-primary: #FFFFFF;
  --primary-container: #E6DEFF;
  --on-primary-container: #1C0062;
  --secondary-container: #E8DFFA;
  --on-secondary-container: #1E1A2C;
  --error: #BA1A1A;
  --error-container: #FFDAD6;
  --on-error-container: #410002;
  --tertiary: #854B00;
  --surface: #FAF6FE;
  --on-surface: #1B1922;
  --on-surface-variant: #44414E;
  --surface-container-lowest: #FFFFFF;
  --surface-container-low: #F6F1FC;
  --surface-container: #F0EAF7;
  --surface-container-high: #EAE4F2;
  --surface-container-highest: #E4DEEF;
  --outline: #757181;
  --outline-variant: #C6C0D2;
  --inverse-surface: #2D2A36;
  --inverse-on-surface: #F2ECFA;
  --inverse-primary: #C9BCFF;
  --scrim: rgb(0 0 0 / 0.32);

  /* Status colours stay fixed: they are signals, not branding (CubyStatusColors). */
  --ready: #006D39;
  --inspection: #854B00;
  --inspection-warning: #A76200;
  --inspection-expired: #BA1A1A;
  --penalty: #A76200;
  --dnf: #BA1A1A;
  --success-container: #B4F1CC;
  --on-success-container: #00210F;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-xxl: 24px;
  --space-xxxl: 32px;

  --radius-xs: 4px;
  --radius-md: 12px;
  --radius-card: 16px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --ease-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
  --ease-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  --quick: 120ms;
  --short: 200ms;
  --medium: 300ms;

  --nav-height: 80px;
  --rail-width: 80px;
  --max-content: 840px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Roboto Mono", "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --primary: #C9BCFF;
    --on-primary: #30128F;
    --primary-container: #472AAE;
    --on-primary-container: #E6DEFF;
    --secondary-container: #473C75;
    --on-secondary-container: #E8DFFA;
    --error: #FFB4AB;
    --error-container: #93000A;
    --on-error-container: #FFDAD6;
    --tertiary: #F5C98A;
    --surface: #13111A;
    --on-surface: #E4DEEF;
    --on-surface-variant: #C6C0D2;
    --surface-container-lowest: #0C0A12;
    --surface-container-low: #1B1922;
    --surface-container: #1F1D27;
    --surface-container-high: #282530;
    --surface-container-highest: #322F3B;
    --outline: #8F8A9B;
    --outline-variant: #44414E;
    --inverse-surface: #E4DEEF;
    --inverse-on-surface: #2D2A36;
    --inverse-primary: #5E43C9;
    --ready: #39A96C;
    --inspection: #F5C98A;
    --inspection-warning: #C98220;
    --inspection-expired: #FFB4AB;
    --penalty: #E3A855;
    --dnf: #FFB4AB;
    --success-container: #00522A;
    --on-success-container: #B4F1CC;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --primary: #C9BCFF;
  --on-primary: #30128F;
  --primary-container: #472AAE;
  --on-primary-container: #E6DEFF;
  --secondary-container: #473C75;
  --on-secondary-container: #E8DFFA;
  --error: #FFB4AB;
  --error-container: #93000A;
  --on-error-container: #FFDAD6;
  --tertiary: #F5C98A;
  --surface: #13111A;
  --on-surface: #E4DEEF;
  --on-surface-variant: #C6C0D2;
  --surface-container-lowest: #0C0A12;
  --surface-container-low: #1B1922;
  --surface-container: #1F1D27;
  --surface-container-high: #282530;
  --surface-container-highest: #322F3B;
  --outline: #8F8A9B;
  --outline-variant: #44414E;
  --inverse-surface: #E4DEEF;
  --inverse-on-surface: #2D2A36;
  --inverse-primary: #5E43C9;
  --ready: #39A96C;
  --inspection: #F5C98A;
  --inspection-warning: #C98220;
  --inspection-expired: #FFB4AB;
  --penalty: #E3A855;
  --dnf: #FFB4AB;
  --success-container: #00522A;
  --on-success-container: #B4F1CC;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font: 400 16px/24px var(--font);
  letter-spacing: 0.031em;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow: hidden;
}

button {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

[hidden] { display: none !important; }

.icon { width: 24px; height: 24px; fill: currentColor; flex: none; }
.icon-sm { width: 18px; height: 18px; }
.tnum { font-variant-numeric: tabular-nums; }

/* State layers: M3 overlays the content colour at 8 % on hover, 10 % on press. */
.state, .icon-button, .chip, .text-button, .list-item:is(button, label), .nav-item .nav-indicator,
.segmented button, .radio-row {
  position: relative;
  isolation: isolate;
}
:is(.icon-button, .chip, .text-button, button.list-item, label.list-item, a.list-item, .segmented button, .radio-row)::after,
.nav-item .nav-indicator::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--quick) linear;
  pointer-events: none;
  z-index: -1;
}
@media (hover: hover) {
  :is(.icon-button, .chip, .text-button, button.list-item, label.list-item, a.list-item, .segmented button, .radio-row):hover::after,
  .nav-item:hover .nav-indicator::after { opacity: 0.08; }
}
:is(.icon-button, .chip, .text-button, button.list-item, label.list-item, a.list-item, .segmented button, .radio-row):active::after,
.nav-item:active .nav-indicator::after { opacity: 0.1; }

/* ---------- Navigation: bar on compact width, rail from 600px ---------- */

.nav {
  position: fixed;
  z-index: 10;
  inset: auto 0 0 0;
  height: calc(var(--nav-height) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  display: flex;
  justify-content: center;
  background: var(--surface-container);
  transition: opacity var(--short) var(--ease-emphasized), transform var(--short) var(--ease-emphasized);
}

.nav-item {
  flex: 1;
  max-width: 160px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  color: var(--on-surface-variant);
}

.nav-indicator {
  width: 64px;
  height: 32px;
  border-radius: var(--radius-pill);
  display: grid;
  place-items: center;
  transition: background-color var(--short) var(--ease-emphasized);
}

.nav-label { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.04em; }

.nav-item[aria-current="page"] { color: var(--on-surface); }
.nav-item[aria-current="page"] .nav-indicator {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.nav-item[aria-current="page"] .nav-label { font-weight: 700; }

main {
  position: fixed;
  inset: 0;
}

.view {
  position: absolute;
  inset: 0;
  animation: fade-through var(--medium) var(--ease-emphasized);
}

@keyframes fade-through {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: none; }
}

@media (min-width: 600px) {
  .nav {
    inset: 0 auto 0 0;
    width: calc(var(--rail-width) + env(safe-area-inset-left));
    height: auto;
    padding: var(--space-xxl) 0 0 env(safe-area-inset-left);
    flex-direction: column;
    justify-content: flex-start;
    gap: var(--space-md);
    background: var(--surface);
  }
  .nav-item { flex: none; height: 56px; }
  main { left: calc(var(--rail-width) + env(safe-area-inset-left)); }
}

/* ---------- Timer ---------- */

.timer-view {
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  cursor: default;
}

.timer-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 64px;
  padding: var(--space-sm) var(--space-xs) var(--space-sm) var(--space-lg);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-right: auto;
  font-size: 22px;
  line-height: 28px;
}
@media (max-width: 340px) { .brand span { display: none; } }

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  height: 32px;
  padding: 0 var(--space-md) 0 var(--space-lg);
  border-radius: var(--radius-sm, 8px);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.007em;
  white-space: nowrap;
}
.chip.selected {
  border-color: transparent;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.event-chip { border-color: transparent; background: var(--secondary-container); color: var(--on-secondary-container); }

.icon-button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  color: var(--on-surface-variant);
}

.scramble {
  margin: var(--space-sm) auto 0;
  max-width: 720px;
  padding: 0 var(--space-xxl);
  text-align: center;
  font: 400 20px/32px var(--mono);
  letter-spacing: 0;
  word-spacing: 0.15em;
  white-space: pre-line;
  user-select: text;
  -webkit-user-select: text;
}
.scramble.long { font-size: 16px; line-height: 26px; }
.scramble.xlong { font-size: 13px; line-height: 20px; }

/* Centred on the window, not on the space between header and footer, so it never moves. */
.readout-zone {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
  pointer-events: none;
}

.readout {
  font-size: clamp(72px, 17vw, 176px);
  line-height: 1.1;
  font-weight: 500;
  letter-spacing: -0.015em;
  font-variant-numeric: tabular-nums;
  color: var(--on-surface);
  transition: color var(--quick) linear;
}
.readout.arming { color: var(--inspection-warning); }
.readout.ready { color: var(--ready); }
.readout.inspection { color: var(--inspection); }
.readout.inspection.warning { color: var(--inspection-warning); }
.readout.inspection.expired { color: var(--inspection-expired); }
.readout.dnf { color: var(--dnf); }
.readout.penalty { color: var(--penalty); }

.caption {
  height: 32px;
  margin-top: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-variant);
  font-size: 14px;
  letter-spacing: 0.018em;
}

.pb-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  height: 28px;
  padding: 0 var(--space-md) 0 var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--success-container);
  color: var(--on-success-container);
  font-weight: 500;
  animation: rise var(--medium) var(--ease-decelerate);
}

.timer-footer {
  margin-top: auto;
  padding: 0 var(--space-lg) calc(var(--nav-height) + env(safe-area-inset-bottom) + var(--space-lg));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}
@media (min-width: 600px) {
  .timer-footer { padding-bottom: calc(env(safe-area-inset-bottom) + var(--space-xxl)); }
}

.last-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: rise var(--short) var(--ease-decelerate);
}
.last-actions .chip { padding: 0 var(--space-lg); min-width: 64px; }
.divider { width: 1px; height: 24px; background: var(--outline-variant); margin: 0 var(--space-xs); }

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.stats-strip {
  margin: 0;
  width: 100%;
  max-width: 560px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xxs, 2px);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.stats-strip > div {
  background: var(--surface-container);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
}
.stats-strip dt { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.04em; color: var(--on-surface-variant); }
.stats-strip dd { margin: 2px 0 0; font-size: 16px; line-height: 24px; font-weight: 500; font-variant-numeric: tabular-nums; }

/* During a solve everything but the readout steps back; layout stays put. */
.chrome, .nav { transition: opacity var(--short) var(--ease-emphasized); }
body.solving .chrome,
body.solving .nav { opacity: 0; pointer-events: none; }

/* ---------- Pages ---------- */

.page {
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) calc(var(--nav-height) + env(safe-area-inset-bottom)) env(safe-area-inset-left);
}
@media (min-width: 600px) { .page { padding-bottom: env(safe-area-inset-bottom); } }

.top-bar {
  position: sticky;
  top: 0;
  z-index: 2;
  min-height: 64px;
  padding: var(--space-md) var(--space-lg);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: background-color var(--short) linear;
}
.page.scrolled .top-bar { background: var(--surface-container); }
.top-bar .title { margin: 0; font-size: 22px; line-height: 28px; font-weight: 400; letter-spacing: 0; }
.top-bar .subtitle { margin: 0; font-size: 14px; line-height: 20px; color: var(--on-surface-variant); }

.content {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0 var(--space-lg) var(--space-xxxl);
}

.section-header {
  margin: var(--space-xxl) var(--space-lg) var(--space-sm);
  font-size: 14px;
  line-height: 20px;
  font-weight: 500;
  letter-spacing: 0.007em;
  color: var(--primary);
}

/* Grouped list: 16dp outer corners, 4dp between rows, 2dp gaps. */
.group { display: flex; flex-direction: column; gap: 2px; }
.group > * { border-radius: var(--radius-xs); }
.group > :first-child { border-top-left-radius: var(--radius-card); border-top-right-radius: var(--radius-card); }
.group > :last-child { border-bottom-left-radius: var(--radius-card); border-bottom-right-radius: var(--radius-card); }

.list-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
  min-height: 64px;
  padding: var(--space-md) var(--space-xxl) var(--space-md) var(--space-lg);
  background: var(--surface-container);
  text-align: left;
  color: var(--on-surface);
}
.list-item .leading { color: var(--on-surface-variant); }
.list-item .trailing { color: var(--on-surface-variant); margin-left: auto; }
.list-item.danger, .list-item.danger .leading { color: var(--error); }
a.list-item { text-decoration: none; }
label.list-item { cursor: pointer; }
.list-item.panel { flex-direction: column; align-items: stretch; gap: var(--space-md); }
.list-item.panel .segmented { display: flex; }
.list-item.panel .segmented button { flex: 1; }

.list-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.headline { font-size: 16px; line-height: 24px; }
.supporting { font-size: 14px; line-height: 20px; letter-spacing: 0.018em; color: var(--on-surface-variant); }
.footnote { margin: var(--space-xxl) var(--space-lg) 0; font-size: 12px; line-height: 16px; color: var(--on-surface-variant); text-align: center; }

/* M3 switch */
.switch {
  appearance: none;
  flex: none;
  margin: 0;
  width: 52px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: 2px solid var(--outline);
  background: var(--surface-container-highest);
  position: relative;
  cursor: pointer;
  transition: background-color var(--short) linear, border-color var(--short) linear;
}
.switch::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--outline);
  transform: translateY(-50%);
  transition: all var(--short) var(--ease-emphasized);
}
.switch:checked { background: var(--primary); border-color: var(--primary); }
.switch:checked::before { left: 22px; width: 24px; height: 24px; background: var(--on-primary); }

/* M3 segmented buttons */
.segmented {
  display: inline-flex;
  height: 40px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.segmented button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-width: 64px;
  padding: 0 var(--space-md);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.007em;
  color: var(--on-surface);
}
.segmented button + button { border-left: 1px solid var(--outline); }
.segmented button[aria-checked="true"] {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.segmented button[aria-checked="true"]::before {
  content: "";
  width: 18px;
  height: 18px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center / contain no-repeat;
}

/* ---------- Times ---------- */

.headline-card {
  margin-top: var(--space-sm);
  padding: var(--space-xl);
  border-radius: 20px;
  background: var(--primary-container);
  color: var(--on-primary-container);
}
.headline-card .label { font-size: 14px; line-height: 20px; font-weight: 500; }
.headline-card .hero { font-size: 45px; line-height: 52px; font-weight: 500; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

.stat-grid {
  margin: var(--space-lg) 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md) var(--space-lg);
}
.stat-grid dt { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.04em; opacity: 0.8; }
.stat-grid dd { margin: 0; font-size: 16px; line-height: 24px; font-weight: 500; font-variant-numeric: tabular-nums; }

.day-header {
  position: sticky;
  top: 64px;
  z-index: 1;
  margin: 0;
  padding: var(--space-lg) var(--space-lg) var(--space-sm);
  background: var(--surface);
  font-size: 14px;
  line-height: 20px;
  font-weight: 500;
  color: var(--primary);
}
.page.scrolled .day-header { background: var(--surface); }

.solve-row { min-height: 56px; padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.solve-row .index { width: 4ch; color: var(--on-surface-variant); font-size: 14px; font-variant-numeric: tabular-nums; text-align: right; }
.solve-row .time { font-size: 16px; line-height: 24px; font-weight: 500; font-variant-numeric: tabular-nums; }
.solve-row .time.dnf { color: var(--dnf); }
.solve-row .time.penalty { color: var(--penalty); }
.solve-row .when { margin-left: auto; color: var(--on-surface-variant); font-size: 14px; font-variant-numeric: tabular-nums; }
.solve-row .pb-mini {
  padding: 0 var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--success-container);
  color: var(--on-success-container);
  font-size: 12px;
  line-height: 20px;
  font-weight: 500;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
  padding: 72px var(--space-xxl);
}
.empty-badge {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  margin-bottom: var(--space-sm);
}
.empty-badge .icon { width: 32px; height: 32px; }
.empty-state h2 { margin: 0; font-size: 22px; line-height: 28px; font-weight: 400; }
.empty-state p { margin: 0; color: var(--on-surface-variant); font-size: 14px; line-height: 20px; max-width: 320px; }

/* ---------- Dialogs ---------- */

.dialog {
  border: 0;
  padding: var(--space-xxl);
  width: min(560px, calc(100vw - 48px));
  max-height: min(640px, calc(100dvh - 48px));
  border-radius: var(--radius-xl);
  background: var(--surface-container-high);
  color: var(--on-surface);
  display: flex;
  flex-direction: column;
}
.dialog:not([open]) { display: none; }
.dialog[open] { animation: dialog-in var(--medium) var(--ease-decelerate); }
.dialog::backdrop { background: var(--scrim); animation: fade-in var(--medium) linear; }

@keyframes dialog-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.96); }
  to { opacity: 1; transform: none; }
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.dialog-title { margin: 0 0 var(--space-lg); font-size: 24px; line-height: 32px; font-weight: 400; }
.dialog-supporting { margin: calc(-1 * var(--space-md)) 0 var(--space-lg); color: var(--on-surface-variant); font-size: 14px; line-height: 20px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: var(--space-sm); margin-top: var(--space-xxl); }
.dialog-actions.spread { justify-content: space-between; }

.radio-list { overflow-y: auto; margin: 0 calc(-1 * var(--space-xxl)); border-block: 1px solid var(--outline-variant); }
.radio-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
  min-height: 48px;
  padding: 0 var(--space-xxl);
  text-align: left;
}
.radio-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--on-surface-variant);
  display: grid;
  place-items: center;
  flex: none;
}
.radio-row[aria-checked="true"] .radio-dot { border-color: var(--primary); }
.radio-row[aria-checked="true"] .radio-dot::after { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); }

.scramble-box {
  margin: 0 0 var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--surface-container-highest);
  font: 400 14px/22px var(--mono);
  white-space: pre-line;
  word-spacing: 0.1em;
}

.text-button {
  height: 40px;
  padding: 0 var(--space-md);
  border-radius: var(--radius-pill);
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.007em;
}
.text-button.danger { color: var(--error); }

/* ---------- Snackbar ---------- */

.snackbar {
  position: fixed;
  z-index: 20;
  left: 50%;
  bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + var(--space-md));
  transform: translateX(-50%);
  width: min(560px, calc(100vw - 32px));
  min-height: 48px;
  padding: var(--space-xs) var(--space-sm) var(--space-xs) var(--space-lg);
  border-radius: var(--radius-xs);
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  font-size: 14px;
  line-height: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  box-shadow: 0 3px 6px rgb(0 0 0 / 0.2);
  animation: rise var(--short) var(--ease-decelerate);
}
.snackbar .text-button { color: var(--inverse-primary); }
@media (min-width: 600px) {
  .snackbar { bottom: calc(env(safe-area-inset-bottom) + var(--space-xxl)); left: calc(50% + var(--rail-width) / 2); }
}

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

.dialog .segmented { display: flex; }
.dialog .segmented button { flex: 1; }

/* ---------- Premium: shown, greyed out, explained on tap ---------- */

/* M3 disables content at 38 %; these stay tappable so the tap can explain why. */
.locked > :not(.lock) { opacity: 0.38; }
.locked .lock { margin-left: auto; width: 20px; height: 20px; color: var(--on-surface-variant); flex: none; }
.locked { cursor: pointer; }

.premium-dialog .dialog-actions a { display: inline-flex; align-items: center; text-decoration: none; }
.dialog-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-lg);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  flex: none;
}
.dialog-icon.danger { background: var(--error-container); color: var(--on-error-container); }
.dialog-title.centered { text-align: center; }
.dialog-text { margin: 0; color: var(--on-surface-variant); font-size: 14px; line-height: 20px; letter-spacing: 0.018em; }
.premium-dialog .dialog-text { text-align: center; }

/* ---------- Navigation with five destinations ---------- */

.nav-item { min-width: 0; }
@media (max-width: 380px) {
  .nav-indicator { width: 56px; }
  .nav-label { font-size: 11px; }
}

/* ---------- Timer header extras ---------- */

.timer-header { gap: var(--space-xs); }
.timer-header .event-chip { margin-right: var(--space-xs); }
.device-button.connected { color: var(--primary); }
.device-button.connecting { opacity: 0.6; }

.menu-anchor { position: relative; }
.menu {
  position: absolute;
  z-index: 30;
  top: 44px;
  right: 4px;
  min-width: 232px;
  padding: var(--space-sm) 0;
  border-radius: var(--radius-xs);
  background: var(--surface-container);
  box-shadow: 0 2px 6px rgb(0 0 0 / 0.15), 0 1px 2px rgb(0 0 0 / 0.3);
  animation: rise var(--short) var(--ease-decelerate);
}
.menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
  height: 48px;
  padding: 0 var(--space-md);
  text-align: left;
  font-size: 14px;
  letter-spacing: 0.007em;
  position: relative;
  isolation: isolate;
}
.menu-item > .icon:first-child { color: var(--on-surface-variant); }
.menu-item::after { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; z-index: -1; transition: opacity var(--quick) linear; }
.menu-item:hover::after { opacity: 0.08; }
.menu-divider { border: 0; border-top: 1px solid var(--outline-variant); margin: var(--space-sm) 0; }

/* ---------- Times, Stats, Sessions ---------- */

.search-bar {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
  height: 56px;
  margin-top: var(--space-xs);
  padding: 0 var(--space-lg);
  border-radius: var(--radius-pill);
  background: var(--surface-container-high);
  color: var(--on-surface-variant);
  text-align: left;
}
.search-bar .trailing { margin-left: auto; }
.search-bar .lock { margin-left: 0; }

.card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
  margin-top: var(--space-md);
  padding: var(--space-lg);
  border-radius: var(--radius-card);
  background: var(--surface-container);
  color: var(--on-surface);
  text-align: left;
}
.card .leading { color: var(--on-surface-variant); }
.chart-card { flex-wrap: wrap; }
.chart-card .chart-label { font-size: 14px; font-weight: 500; color: var(--on-surface-variant); }
.chart-card .chart { order: 3; width: 100%; height: 96px; color: var(--primary); }

.group-first { margin-top: var(--space-sm); }

.monogram {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: none;
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-size: 14px;
  font-weight: 500;
}
.list-item.active { background: var(--secondary-container); color: var(--on-secondary-container); }
.list-item.active .supporting { color: var(--on-secondary-container); }

.fab {
  position: fixed;
  z-index: 5;
  right: calc(var(--space-lg) + env(safe-area-inset-right));
  bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + var(--space-lg));
  height: 56px;
  padding: 0 var(--space-lg);
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  border-radius: var(--radius-card);
  background: var(--primary-container);
  color: var(--on-primary-container);
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 3px 6px rgb(0 0 0 / 0.15), 0 1px 3px rgb(0 0 0 / 0.2);
}
.fab .lock { margin-left: 0; color: inherit; }
@media (min-width: 600px) { .fab { bottom: calc(env(safe-area-inset-bottom) + var(--space-xxl)); } }

/* ---------- Device page ---------- */

.top-bar.with-back { flex-direction: row; align-items: center; justify-content: flex-start; gap: var(--space-xs); padding-left: var(--space-xs); }

.device-hero {
  margin-top: var(--space-sm);
  padding: var(--space-xl);
  border-radius: 20px;
  background: var(--surface-container);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.device-hero.connected { background: var(--primary-container); color: var(--on-primary-container); }
.device-hero .hero-row { display: flex; align-items: center; gap: var(--space-lg); }
.device-hero .hero-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  flex: none;
}
.device-hero.connected .hero-icon { background: var(--primary); color: var(--on-primary); }
.device-hero h2 { margin: 0; font-size: 22px; line-height: 28px; font-weight: 400; }
.device-hero p { margin: 0; font-size: 14px; line-height: 20px; }
.device-hero .switch { margin-left: auto; }
.info-chips { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.info-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  height: 32px;
  padding: 0 var(--space-md) 0 var(--space-sm);
  border-radius: 8px;
  background: var(--surface-container-highest);
  color: var(--on-surface);
  font-size: 14px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.device-hero.connected .info-chip { background: var(--surface-container-lowest); }
.info-chip .icon { width: 18px; height: 18px; }

.filled-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  height: 40px;
  padding: 0 var(--space-xxl) 0 var(--space-lg);
  border-radius: var(--radius-pill);
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.007em;
  align-self: flex-start;
  position: relative;
  isolation: isolate;
}
.filled-button::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: currentColor; opacity: 0; z-index: -1; }
.filled-button:hover::after { opacity: 0.08; }
.filled-button .icon { width: 18px; height: 18px; }

.notice { margin: 0; font-size: 14px; line-height: 20px; color: var(--on-surface-variant); }
.notice.error { color: var(--error); }

.slider-row .headline-line { display: flex; justify-content: space-between; gap: var(--space-md); }
input[type="range"] { width: 100%; accent-color: var(--primary); height: 32px; margin: 0; }

/* Calibration */
.cal-body { display: flex; flex-direction: column; gap: var(--space-md); }
.cal-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xs); }
.cal-steps span { height: 6px; border-radius: var(--radius-pill); background: var(--surface-container-highest); transition: background-color var(--medium) var(--ease-emphasized); }
.cal-steps span.done { background: var(--primary); }
.cal-steps span.current { background: linear-gradient(90deg, var(--primary) 50%, var(--surface-container-highest) 50%); }
.cal-instruction { min-height: 48px; margin: 0; font-size: 16px; line-height: 24px; }
.cal-instruction.enter { animation: rise var(--medium) var(--ease-decelerate); }
.cal-stage { height: 200px; display: grid; place-items: center; }
.cal-stage svg { width: 100%; max-width: 320px; height: 200px; overflow: visible; }
.cal-verdict { display: flex; flex-direction: column; gap: var(--space-xs); font-size: 12px; line-height: 16px; color: var(--on-surface-variant); }
.cal-verdict .bad { color: var(--error); }
.shake { animation: shake var(--medium) linear; }
@keyframes shake {
  0%, 100% { transform: none; }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}
.pad-liquid { transition: y var(--short) var(--ease-emphasized), height var(--short) var(--ease-emphasized), fill var(--short) linear; }
.hand-hint { animation: hover 1.4s ease-in-out infinite alternate; }
@keyframes hover { from { transform: translateY(0); } to { transform: translateY(-8px); } }
.pad-check { animation: pop var(--medium) var(--ease-decelerate); transform-box: fill-box; transform-origin: center; }
@keyframes pop { from { transform: scale(0.4); opacity: 0; } to { transform: none; opacity: 1; } }
.quality-arc { transition: stroke-dashoffset 600ms var(--ease-decelerate); }

/* M3 linear progress */
.progress { height: 4px; border-radius: var(--radius-pill); background: var(--surface-container-highest); overflow: hidden; }
.progress > span { display: block; height: 100%; border-radius: inherit; background: var(--primary); transition: width var(--short) linear; }
.progress.indeterminate > span { width: 40%; animation: indeterminate 1.4s var(--ease-emphasized) infinite; }
@keyframes indeterminate { from { transform: translateX(-100%); } to { transform: translateX(250%); } }
.firmware-body { display: flex; flex-direction: column; gap: var(--space-md); }

/* ---------- Installed web app: install entry, detail statistics ---------- */

.install-item { background: var(--primary-container); color: var(--on-primary-container); }
.install-item .leading, .install-item .trailing, .install-item .supporting { color: var(--on-primary-container); }
.install-steps { margin-top: var(--space-md); color: var(--on-surface); font-weight: 500; }

/* A deleted solve kept on screen: the number stays, visibly no longer a result. */
.readout.ghost { opacity: 0.38; }

.title-stack { display: flex; flex-direction: column; min-width: 0; }

.insight-grid {
  margin: var(--space-md) 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 2px;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.insight-grid > div { background: var(--surface-container); padding: var(--space-md) var(--space-lg); }
.insight-grid dt { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.04em; color: var(--on-surface-variant); }
.insight-grid dd { margin: 2px 0 0; font-size: 22px; line-height: 28px; font-variant-numeric: tabular-nums; }
.insight-empty { margin-top: var(--space-lg); }
.content > .notice { margin: var(--space-md) var(--space-lg) 0; }
.headline-note { margin: var(--space-xs) 0 0; font-size: 14px; line-height: 20px; opacity: 0.8; }

.any-average-controls { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-md); margin-top: var(--space-sm); }
.size-field { display: inline-flex; align-items: center; gap: var(--space-sm); font-size: 14px; color: var(--on-surface-variant); }
.size-field input {
  width: 88px;
  height: 40px;
  padding: 0 var(--space-md);
  border: 1px solid var(--outline);
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--on-surface);
  font: inherit;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}
.size-field input:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary); }

/* Trend: singles faint, averages on top. */
.chart.trend { overflow: visible; }
.chart .series { fill: none; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.chart .singles { stroke: var(--outline-variant); stroke-width: 1.5; }
.chart .ao5 { stroke: var(--primary); stroke-width: 3; }
.chart .ao12 { stroke: var(--tertiary); stroke-width: 2; }
.chart .axis { fill: var(--on-surface-variant); font-size: 10px; font-variant-numeric: tabular-nums; }
.trend-card { display: block; }
.trend-card .chart { width: 100%; height: 220px; display: block; }
.legend { display: flex; flex-wrap: wrap; gap: var(--space-lg); margin: var(--space-md) var(--space-lg) 0; font-size: 12px; color: var(--on-surface-variant); }
.legend span { display: inline-flex; align-items: center; gap: var(--space-xs); }
.legend .dot { width: 12px; height: 3px; border-radius: var(--radius-pill); display: inline-block; }
.legend .dot.singles { background: var(--outline-variant); }
.legend .dot.ao5 { background: var(--primary); }
.legend .dot.ao12 { background: var(--tertiary); }

.histogram { display: flex; flex-direction: column; align-items: stretch; gap: var(--space-xs); }
.bin { display: grid; grid-template-columns: 9.5em 1fr 3em; align-items: center; gap: var(--space-md); font-size: 12px; font-variant-numeric: tabular-nums; }
.bin-label { color: var(--on-surface-variant); white-space: nowrap; }
.bin-bar { height: 16px; border-radius: var(--radius-xs); background: var(--surface-container-highest); overflow: hidden; }
.bin-bar > span { display: block; height: 100%; background: var(--primary); border-radius: inherit; }
.bin-count { text-align: right; }

.calendar { display: block; overflow-x: auto; }
.calendar-grid {
  display: grid;
  grid-template-rows: repeat(7, 1fr);
  grid-auto-flow: column;
  grid-auto-columns: minmax(10px, 1fr);
  gap: 3px;
  min-width: calc(var(--weeks) * 13px);
}
.calendar-grid .day { aspect-ratio: 1; border-radius: 3px; background: var(--surface-container-highest); }
.calendar-grid .day.future { background: transparent; }
.calendar-grid .day.l1 { background: color-mix(in srgb, var(--primary) 30%, var(--surface-container-highest)); }
.calendar-grid .day.l2 { background: color-mix(in srgb, var(--primary) 55%, var(--surface-container-highest)); }
.calendar-grid .day.l3 { background: color-mix(in srgb, var(--primary) 78%, var(--surface-container-highest)); }
.calendar-grid .day.l4 { background: var(--primary); }