/* The app's foundation: text, surfaces and the parts every screen shares. Values
   are the Material 3 defaults the app runs with, overridden by lib/theme.dart
   (through tokens.css) and by the widgets named in each block. */

/* ---------- text ----------
   Material's DefaultTextStyle is bodyMedium, so an app TextStyle that sets only
   size or weight still inherits line height 1.43 and letter spacing 0.25. */
.k-screen {
  font-family: var(--k-font);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: .25px;
  color: var(--on-surface);
  background: linear-gradient(var(--bg-gradient-top), var(--bg-gradient-bottom));
  -webkit-font-smoothing: antialiased;
}
/* Scaffolds that paint scaffoldBackgroundColor flat (Home, Review Mode, the
   Autopilot states) hide the shell gradient */
.k-screen.k-flat { background: var(--bg-gradient-top); }
.k-screen *, .k-screen *::before, .k-screen *::after { box-sizing: border-box; }
.k-screen p, .k-screen h1, .k-screen h2, .k-screen h3, .k-screen h4 { margin: 0; }

/* Theme.of(context).textTheme.<style> */
.k-display-large { font: var(--display-large) var(--k-font); letter-spacing: var(--display-large-tracking); }
.k-display-medium { font: var(--display-medium) var(--k-font); letter-spacing: var(--display-medium-tracking); }
.k-display-small { font: var(--display-small) var(--k-font); letter-spacing: var(--display-small-tracking); }
.k-headline-large { font: var(--headline-large) var(--k-font); letter-spacing: var(--headline-large-tracking); }
.k-headline-medium { font: var(--headline-medium) var(--k-font); letter-spacing: var(--headline-medium-tracking); }
.k-headline-small { font: var(--headline-small) var(--k-font); letter-spacing: var(--headline-small-tracking); }
.k-title-large { font: var(--title-large) var(--k-font); letter-spacing: var(--title-large-tracking); }
.k-title-medium { font: var(--title-medium) var(--k-font); letter-spacing: var(--title-medium-tracking); }
.k-title-small { font: var(--title-small) var(--k-font); letter-spacing: var(--title-small-tracking); }
.k-body-large { font: var(--body-large) var(--k-font); letter-spacing: var(--body-large-tracking); }
.k-body-medium { font: var(--body-medium) var(--k-font); letter-spacing: var(--body-medium-tracking); }
.k-body-small { font: var(--body-small) var(--k-font); letter-spacing: var(--body-small-tracking); }
.k-label-large { font: var(--label-large) var(--k-font); letter-spacing: var(--label-large-tracking); }
.k-label-medium { font: var(--label-medium) var(--k-font); letter-spacing: var(--label-medium-tracking); }
.k-label-small { font: var(--label-small) var(--k-font); letter-spacing: var(--label-small-tracking); }
/* .copyWith(fontWeight: …) and the two common colours */
.k-w500 { font-weight: 500; }
.k-w600 { font-weight: 600; }
.k-w700 { font-weight: 700; }
.k-w800 { font-weight: 800; }
.k-muted { color: var(--on-surface-variant); }
.k-primary { color: var(--primary); }

/* ---------- layout ---------- */
/* SizedBox(height: n): <div class="k-space" style="height:16px"></div> */
.k-space { flex: none; }
/* a scrolling body between the fixed parts of a screen */
.k-scroll { flex: 1; min-height: 0; overflow-y: auto; scrollbar-width: none; }
.k-scroll::-webkit-scrollbar { display: none; }
/* content that runs under the floating nav bar: clears it */
.k-under-nav { padding-bottom: calc(var(--k-safe-bottom) + 90px); }
k-icon { display: inline-flex; flex: none; }
/* a source's monogram circle (TrackerSourceAvatar): white, w800, 0.42 of the size */
k-avatar { flex: none; display: inline-grid; place-items: center; border-radius: 50%; color: #FFFFFF; font-weight: 800; line-height: 1; letter-spacing: .2px; }
/* a stand-in picture fills its box and never spills out of it */
k-photo { display: block; overflow: hidden; }
k-photo > svg { display: block; width: 100%; height: 100%; }
.k-glyph { display: block; fill: currentColor; }

/* ---------- floating nav bar (router/app_router.dart:435-641) ----------
   <k-nav-bar active="tracker"></k-nav-bar>, placed last in .k-screen. 68 tall,
   16 from the sides, safe area + 8 from the bottom, no blur. Cells are equal;
   the selected one draws a 53-tall pill (cell - 8 wide). */
k-nav-bar { position: absolute; left: 16px; right: 16px; bottom: calc(var(--k-safe-bottom) + 8px); z-index: 10; display: flex; height: 68px; border: .5px solid rgba(255, 255, 255, .45); border-radius: 18px; background: rgba(255, 255, 255, .92); box-shadow: 0 4px 19px rgba(0, 0, 0, .08); }
.k-compact k-nav-bar { bottom: calc(var(--k-safe-bottom) + 8px); }
.k-nav-cell { flex: 1; min-width: 0; display: flex; padding: 8px 4px 6px; }
.k-nav-pill { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; padding: 8px 8px 7px; border-radius: 12px; color: #848B98; font-size: 11px; font-weight: 500; white-space: nowrap; }
.k-nav-cell.on .k-nav-pill { justify-content: flex-start; background: rgba(255, 56, 92, .08); font-size: 10.5px; font-weight: 600; color: rgba(255, 56, 92, .75); }
.k-nav-cell.on .k-nav-pill > k-icon { color: rgba(255, 56, 92, .85); }

/* ---------- app bar (AppBar: 56 tall, flat, #FCF7F9) ---------- */
.k-app-bar { flex: none; position: relative; display: flex; align-items: center; height: 56px; padding: 0 4px; background: var(--app-bar-bg); color: var(--app-bar-fg); }
.k-app-bar > .k-app-bar-title { flex: 1; min-width: 0; padding: 0 12px; font: var(--title-large) var(--k-font); letter-spacing: var(--title-large-tracking); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
/* iOS centres the title; Android starts it after the leading icon */
.k-app-bar.center > .k-app-bar-title { position: absolute; left: 64px; right: 64px; padding: 0; text-align: center; }
.k-app-bar.center > .k-spacer { flex: 1; }
.k-app-bar .k-icon-button { color: var(--app-bar-fg); }

/* ---------- icon button (M3: 48 tap target, 40 visual, icon 24) ---------- */
.k-icon-button { flex: none; position: relative; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: var(--on-surface-variant); }
/* a count badge on the icon (InboxButton: 5 beyond the icon's corner) */
.k-count-badge { position: absolute; top: 7px; right: 7px; display: grid; place-items: center; min-width: 18px; height: 18px; padding: 1px 5px; border-radius: 9px; background: var(--error); color: var(--on-error); font-size: 11px; font-weight: 700; line-height: 1.2; letter-spacing: 0; }
/* a plain dot: an active filter */
.k-dot-badge { position: absolute; top: 10px; right: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }

/* ---------- buttons ---------- */
/* FilledButton: 40 visual inside 48 of layout (4 transparent above and below) */
.k-filled-button { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; margin: 4px 0; padding: var(--filled-button-padding); border-radius: var(--button-radius); background: var(--filled-button-bg); color: var(--filled-button-fg); font: var(--filled-button-font) var(--k-font); line-height: 20px; letter-spacing: 0; text-align: center; }
.k-filled-button.disabled { background: var(--filled-button-disabled-bg); color: var(--filled-button-disabled-fg); }
.k-filled-button.tall { min-height: 52px; }
/* GradientButton (theme.dart): the primary call to action */
.k-gradient-button { display: flex; align-items: center; justify-content: center; gap: 6px; min-height: 48px; padding: 14px 28px; border-radius: 14px; background: linear-gradient(90deg, #F15A5A, #F28A7F); box-shadow: 0 8px 16px rgba(241, 90, 90, .32); color: #FFFFFF; font-size: 16px; font-weight: 700; line-height: 20px; letter-spacing: .2px; text-align: center; }
.k-gradient-button.disabled { background: #E8E0E4; box-shadow: none; color: var(--on-surface-variant); }
/* OutlinedButton: about 48 tall */
.k-outlined-button { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: var(--outlined-button-padding); border: var(--outlined-button-border); border-radius: var(--button-radius); color: var(--outlined-button-fg); font: var(--outlined-button-font) var(--k-font); line-height: 18px; letter-spacing: 0; text-align: center; }
.k-outlined-button.variant-border { border-color: var(--outline-variant); }
/* TextButton: labelLarge in primary, padding 8/12, min 64 x 40 */
.k-text-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-width: 64px; min-height: 40px; margin: 4px 0; padding: 8px 12px; border-radius: 20px; color: var(--text-button-fg); font: var(--label-large) var(--k-font); letter-spacing: var(--label-large-tracking); }
.k-text-button.end-icon { padding-right: 16px; }
.k-align-end { align-self: flex-end; }
.k-stretch { align-self: stretch; }

/* ---------- surfaces ---------- */
/* Card: white, radius 18, 1 px #EEEEEE drawn inside the edge; Padding(16) in
   Flutter is 15 here because the border takes the first pixel */
.k-card { background: var(--card-bg); border: var(--card-border); border-radius: var(--card-radius); padding: 15px; }
.k-card.flush { padding: 0; overflow: hidden; }
/* a Container with Border.all(outlineVariant), radius 16 */
.k-outlined-box { background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 16px; }
/* an entry card that opens a screen (RecentlyGoneEntryCard) */
.k-entry-card { display: flex; align-items: center; padding: 16px; background: #FFFFFF; border: 1px solid var(--outline-variant); border-radius: 18px; }
.k-entry-card > k-icon:first-child { margin-right: 12px; color: var(--on-surface-variant); }
.k-entry-card > k-icon:last-child { margin-left: 8px; color: rgba(0, 0, 0, .87); }
.k-entry-card-text { flex: 1; min-width: 0; }
.k-entry-card-title { font: var(--title-small) var(--k-font); letter-spacing: var(--title-small-tracking); }
.k-entry-card-sub { margin-top: 4px; font: var(--body-small) var(--k-font); letter-spacing: var(--body-small-tracking); }
/* M3 Card's default margin is 4 on every side; add .k-card-margin where the
   code keeps it (Settings rows, the profile chooser) */
.k-card-margin { margin: 4px; }
/* the tinted square behind an icon (40 / radius 12, 56 / radius 18) */
.k-icon-tile { flex: none; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: rgba(255, 56, 92, .09); color: var(--primary); }
.k-icon-tile.large { width: 56px; height: 56px; border-radius: 18px; }
/* a section heading on a page: 15 / w700, 10 above the content */
.k-section-title { margin-bottom: 10px; font-size: 15px; font-weight: 700; }

/* ---------- list rows (M3 ListTile) ---------- */
/* min 56 tall, 72 with a subtitle; leading 24 + 16 gap; padding 16 start, 24 end */
.k-tile { display: flex; align-items: center; gap: 16px; min-height: 56px; padding: 8px 24px 8px 16px; }
.k-tile.two-line { min-height: 72px; }
.k-tile.flush { padding-left: 0; padding-right: 0; }
.k-tile > k-icon, .k-tile > .k-tile-trailing { color: var(--on-surface-variant); }
.k-tile-text { flex: 1; min-width: 0; }
.k-tile-title { font: var(--body-large) var(--k-font); letter-spacing: var(--body-large-tracking); }
.k-tile-sub { font: var(--body-medium) var(--k-font); letter-spacing: var(--body-medium-tracking); color: var(--on-surface-variant); }
.k-divider { flex: none; height: 1px; background: var(--divider); }
.k-divider.variant { background: var(--outline-variant); }
/* Divider() with no height reserves 16 with the line in the middle */
.k-divider.spaced { height: 17px; background: linear-gradient(transparent 8px, var(--divider) 8px, var(--divider) 9px, transparent 9px); }

/* ---------- controls ---------- */
/* M3 Switch 52 x 32 in the theme's colours (switchTheme) */
.k-switch { flex: none; position: relative; width: 52px; height: 32px; border: 2px solid var(--switch-off-outline); border-radius: 16px; background: var(--switch-off-track); }
.k-switch::after { content: ""; position: absolute; top: 6px; left: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--switch-off-thumb); }
.k-switch.on { border-color: var(--switch-on-track); background: var(--switch-on-track); }
.k-switch.on::after { top: 2px; left: 22px; width: 24px; height: 24px; background: var(--switch-on-thumb); }
.k-switch.disabled { border-color: var(--switch-disabled-off-outline); background: var(--switch-disabled-off-track); }
.k-switch.disabled::after { background: var(--switch-disabled-off-thumb); }
.k-switch.on.disabled { border-color: var(--switch-disabled-on-track); background: var(--switch-disabled-on-track); }
.k-switch.on.disabled::after { background: var(--switch-disabled-on-thumb); }
/* Radio: an 18 ring (radius 8, 2 stroke) and a 9 dot, centred in a 40 box */
.k-radio { flex: none; display: grid; place-items: center; width: 40px; height: 40px; }
.k-radio::before { content: ""; grid-area: 1 / 1; width: 18px; height: 18px; border: 2px solid var(--on-surface-variant); border-radius: 50%; }
.k-radio.on::before { border-color: var(--primary); }
.k-radio.on::after { content: ""; grid-area: 1 / 1; width: 9px; height: 9px; border-radius: 50%; background: var(--primary); }
.k-radio.disabled::before { border-color: rgba(26, 29, 46, .38); }
/* Checkbox: 18, radius 2, 2 px border; checked = primary fill with a white
   check (put <k-icon name="check" size="14"> inside) */
.k-checkbox { flex: none; display: grid; place-items: center; width: 18px; height: 18px; border: 2px solid var(--on-surface-variant); border-radius: 2px; color: transparent; }
.k-checkbox.on { border-color: var(--primary); background: var(--primary); color: var(--on-primary); }
/* SegmentedButton (segmentedButtonTheme): 40 tall, stadium, equal segments
   sized to the widest, hugging its content; the selected one shows a check */
.k-segmented { display: inline-grid; grid-auto-columns: 1fr; grid-auto-flow: column; height: 40px; border: 1px solid var(--segmented-border); border-radius: 20px; overflow: hidden; background: var(--segmented-bg); }
.k-segmented > div { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 0 12px; color: var(--segmented-fg); font-size: 14px; font-weight: 600; letter-spacing: 0; white-space: nowrap; }
.k-segmented > div + div { border-left: 1px solid var(--segmented-border); }
.k-segmented > .on { padding-right: 16px; background: var(--segmented-selected-bg); color: var(--segmented-selected-fg); }
.k-segmented > .disabled { color: rgba(26, 29, 46, .38); }
/* a stadium select (the Daily "Send at" pill) */
.k-select-pill { display: inline-flex; align-items: center; gap: 2px; min-height: 36px; padding: 6px 6px 6px 14px; border: 1px solid var(--outline-variant); border-radius: 18px; background: var(--surface); font: var(--label-large) var(--k-font); font-weight: 600; letter-spacing: var(--label-large-tracking); }
/* text field (inputDecorationTheme): radius 14, white, 16/14 padding */
.k-field { position: relative; display: flex; align-items: center; min-height: 52px; padding: var(--input-padding); border: var(--input-border); border-radius: var(--input-radius); background: var(--input-bg); font: var(--body-large) var(--k-font); letter-spacing: var(--body-large-tracking); }
.k-field > label { position: absolute; top: -9px; left: 12px; padding: 0 4px; background: var(--input-bg); font: var(--body-small) var(--k-font); letter-spacing: var(--body-small-tracking); color: var(--on-surface-variant); }
.k-field.focus { border: var(--input-focus-border); }
.k-field.error { border: 1px solid var(--error); }
.k-field.error.focus { border-width: 2px; }
.k-field.error > label { color: var(--error); }

/* ---------- pills, chips, badges ---------- */
/* a state pill: padding 10/5, fully rounded, labelMedium w700 */
.k-pill { display: inline-flex; align-items: center; gap: 5px; padding: 5px 10px; border-radius: 999px; font: var(--label-medium) var(--k-font); font-weight: 700; letter-spacing: var(--label-medium-tracking); white-space: nowrap; }
/* Material chips: 36 visible in a 48 tap box, radius 10 (chipTheme) */
.k-chip { display: inline-flex; align-items: center; gap: 8px; height: 36px; margin: 6px 0; padding: 0 16px; border: 1px solid var(--outline-variant); border-radius: var(--chip-radius); color: var(--on-surface-variant); font: var(--label-large) var(--k-font); letter-spacing: var(--label-large-tracking); white-space: nowrap; }
/* ChoiceChip / FilterChip selected: tinted, no border, a check before the label */
.k-chip.on { padding-left: 8px; border-color: transparent; background: var(--chip-selected-bg); color: var(--on-secondary-container); }
.k-chip.on > k-icon { color: var(--chip-check); }
.k-chip.disabled { border-color: rgba(26, 29, 46, .12); opacity: .38; }
/* InputChip: avatar, label, delete (8 · 20 · 8 · label · 8 · 20 · 8) */
.k-chip.input { padding: 0 8px; }
.k-chip.input > k-icon, .k-chip.input > k-avatar { width: 20px; justify-content: center; }
/* a "Soon" badge (SoonBadge) */
.k-soon { display: inline-block; padding: 2px 6px; border-radius: 999px; background: rgba(255, 218, 218, .55); font: var(--label-small) var(--k-font); font-weight: 700; letter-spacing: var(--label-small-tracking); color: var(--on-secondary-container); }

/* ---------- feedback ---------- */
.k-spinner { flex: none; width: 36px; height: 36px; border: 4px solid; border-color: var(--primary) var(--primary) transparent transparent; border-radius: 50%; transform: rotate(-20deg); }
.k-spinner.small { width: 18px; height: 18px; border-width: 2px; }
.k-linear-progress { height: 4px; overflow: hidden; background: var(--secondary-container); }
.k-linear-progress > i { display: block; height: 100%; background: var(--primary); }
.k-skeleton { display: block; border-radius: 8px; background: rgba(26, 29, 46, .08); }
/* ErrorRetryView (widgets/error_retry_view.dart): centred, padding 32 */
.k-error-view { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 32px; text-align: center; }
.k-error-view > k-icon { color: rgba(110, 119, 135, .4); }
.k-error-view > b { margin-top: 16px; font: var(--title-medium) var(--k-font); font-weight: 600; letter-spacing: var(--title-medium-tracking); }
.k-error-view > span { margin-top: 6px; font: var(--body-small) var(--k-font); letter-spacing: var(--body-small-tracking); color: var(--on-surface-variant); }
.k-error-view > .k-filled-button { margin-top: 20px; }

/* ---------- overlays ---------- */
/* modal barrier: black 54 % */
.k-scrim { position: absolute; inset: 0; z-index: 20; background: rgba(0, 0, 0, .54); }
/* M3 modal bottom sheet: surfaceContainerLow, top radius 28, no shadow */
.k-sheet { position: absolute; left: 0; right: 0; bottom: 0; z-index: 21; display: flex; flex-direction: column; max-height: 90%; padding-bottom: var(--k-safe-bottom); border-radius: 28px 28px 0 0; background: var(--surface-container-low); }
/* the M3 drag handle: 32 x 4 in a 48 band */
.k-sheet-handle { flex: none; width: 32px; height: 4px; margin: 22px auto; border-radius: 2px; background: var(--on-surface-variant); }
/* the handle several sheets draw themselves: 36 x 4, onSurface 18 % */
.k-sheet-grip { flex: none; width: 36px; height: 4px; margin: 0 auto 18px; border-radius: 2px; background: rgba(26, 29, 46, .18); }
/* M3 AlertDialog: surfaceContainerHigh, radius 28, padding 24 */
.k-dialog { position: absolute; left: 40px; right: 40px; top: 50%; z-index: 21; padding: 24px; border-radius: 28px; background: var(--surface-container-high); transform: translateY(-50%); }
.k-dialog > h3 { font: var(--headline-small) var(--k-font); letter-spacing: var(--headline-small-tracking); }
.k-dialog > p { margin-top: 16px; font: var(--body-medium) var(--k-font); letter-spacing: var(--body-medium-tracking); }
.k-dialog > .k-dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 24px; }
.k-dialog .k-text-button { margin: 0; }
.k-dialog .k-text-button.destructive { color: var(--error); }
/* popup menu (PopupMenuButton): surfaceContainer, radius 4, 48 rows */
.k-menu { position: absolute; z-index: 21; min-width: 128px; padding: 8px 0; border-radius: 4px; background: var(--surface-container); box-shadow: 0 2px 6px rgba(0, 0, 0, .15), 0 1px 2px rgba(0, 0, 0, .3); }
.k-menu > div { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 0 12px; font: var(--label-large) var(--k-font); letter-spacing: var(--label-large-tracking); }
.k-menu > .on { background: rgba(188, 188, 188, .4); color: var(--primary); font-weight: 600; }
/* SnackBar (M3 fixed): full width, inverseSurface, the action in inversePrimary.
   The shell shows it with its bottom edge on the nav bar's top edge. */
.k-snackbar { position: absolute; left: 0; right: 0; bottom: calc(var(--k-safe-bottom) + 76px); z-index: 19; display: flex; align-items: center; gap: 8px; min-height: 48px; padding: 0 8px 0 24px; background: var(--inverse-surface); color: var(--on-inverse-surface); font: var(--body-medium) var(--k-font); letter-spacing: var(--body-medium-tracking); }
.k-snackbar > span { flex: 1; }
.k-snackbar > b { padding: 10px 12px; font: var(--label-large) var(--k-font); letter-spacing: var(--label-large-tracking); color: var(--inverse-primary); }
/* an inverse notice at the bottom edge (SnackBar-like) */
.k-notice { position: absolute; left: 0; right: 0; bottom: 0; z-index: 19; padding: 14px 24px; background: var(--inverse-surface); color: var(--on-inverse-surface); box-shadow: 0 3px 12px rgba(0, 0, 0, .25); }

/* coach marks: black 60 % + blur 8, a dark copy panel at the bottom */
.k-coach { position: absolute; inset: 0; z-index: 30; background: rgba(0, 0, 0, .6); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
/* the step's target: raised above the blurred scrim, so it stays sharp */
.k-coach-focus { position: relative; z-index: 31; }
.k-coach-skip { position: absolute; top: calc(var(--k-safe-top) + 12px); right: 20px; z-index: 32; font-size: 14px; font-weight: 500; color: rgba(255, 255, 255, .65); }
.k-coach-panel { position: absolute; left: 20px; right: 20px; bottom: calc(var(--k-safe-bottom) + 16px); z-index: 32; padding: 16px; border-radius: 16px; background: rgba(0, 0, 0, .35); color: #FFFFFF; }
.k-coach-panel > b { display: block; font-size: 20px; font-weight: 700; line-height: 1.2; letter-spacing: 0; }
.k-coach-panel > p { margin-top: 6px; font-size: 14px; line-height: 1.6; color: rgba(255, 255, 255, .85); }
.k-coach-panel > .k-filled-button { width: max-content; min-height: 40px; margin: 10px 0 0 auto; padding: 0 20px; border-radius: 10px; font-size: 13px; }