/* ============================================================================
   Material Design 3 for the Caribou & Dakota books.

   Colour lives in theme.css (generated). This file is everything else the spec
   defines: type scale, shape, elevation, motion, state layers, the components,
   and the adaptive shell that picks a navigation bar, a rail or two panes from
   the window size class.

   Window size classes (m3.material.io/foundations/layout/applying-layout):
     compact   < 600     navigation bar, one pane, 16 margins
     medium    600-839   navigation rail, one pane, 24 margins
     expanded  840-1199  navigation rail, list + detail, 24 margins
     large     1200+     navigation rail, list + detail, wider panes
   ============================================================================ */

:root {
  /* ---- typography: the M3 baseline type scale, Roboto ---- */
  --md-ref-typeface-brand: Roboto, "Roboto Flex", system-ui, -apple-system, "Segoe UI", sans-serif;
  --md-ref-typeface-plain: Roboto, "Roboto Flex", system-ui, -apple-system, "Segoe UI", sans-serif;

  --md-sys-typescale-display-large:   400 57px/64px var(--md-ref-typeface-brand);
  --md-sys-typescale-display-medium:  400 45px/52px var(--md-ref-typeface-brand);
  --md-sys-typescale-display-small:   400 36px/44px var(--md-ref-typeface-brand);
  --md-sys-typescale-headline-large:  400 32px/40px var(--md-ref-typeface-brand);
  --md-sys-typescale-headline-medium: 400 28px/36px var(--md-ref-typeface-brand);
  --md-sys-typescale-headline-small:  400 24px/32px var(--md-ref-typeface-brand);
  --md-sys-typescale-title-large:     400 22px/28px var(--md-ref-typeface-brand);
  --md-sys-typescale-title-medium:    500 16px/24px var(--md-ref-typeface-plain);
  --md-sys-typescale-title-small:     500 14px/20px var(--md-ref-typeface-plain);
  --md-sys-typescale-body-large:      400 16px/24px var(--md-ref-typeface-plain);
  --md-sys-typescale-body-medium:     400 14px/20px var(--md-ref-typeface-plain);
  --md-sys-typescale-body-small:      400 12px/16px var(--md-ref-typeface-plain);
  --md-sys-typescale-label-large:     500 14px/20px var(--md-ref-typeface-plain);
  --md-sys-typescale-label-medium:    500 12px/16px var(--md-ref-typeface-plain);
  /* label-small (11px) is deliberately unused: nothing here goes below 12px */
  --md-sys-tracking-display-large: -0.25px;
  --md-sys-tracking-title-medium: 0.15px;
  --md-sys-tracking-title-small: 0.1px;
  --md-sys-tracking-body-large: 0.5px;
  --md-sys-tracking-body-medium: 0.25px;
  --md-sys-tracking-body-small: 0.4px;
  --md-sys-tracking-label-large: 0.1px;
  --md-sys-tracking-label-medium: 0.5px;

  /* ---- shape ---- */
  --md-sys-shape-corner-none: 0;
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small: 8px;
  --md-sys-shape-corner-medium: 12px;
  --md-sys-shape-corner-large: 16px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full: 9999px;

  /* ---- elevation (shadows; surfaces carry tonal elevation through the containers) ---- */
  --md-sys-elevation-level0: none;
  --md-sys-elevation-level1: 0 1px 2px 0 rgb(0 0 0 / .30), 0 1px 3px 1px rgb(0 0 0 / .15);
  --md-sys-elevation-level2: 0 1px 2px 0 rgb(0 0 0 / .30), 0 2px 6px 2px rgb(0 0 0 / .15);
  --md-sys-elevation-level3: 0 1px 3px 0 rgb(0 0 0 / .30), 0 4px 8px 3px rgb(0 0 0 / .15);
  --md-sys-elevation-level4: 0 2px 3px 0 rgb(0 0 0 / .30), 0 6px 10px 4px rgb(0 0 0 / .15);
  --md-sys-elevation-level5: 0 4px 4px 0 rgb(0 0 0 / .30), 0 8px 12px 6px rgb(0 0 0 / .15);

  /* ---- motion ---- */
  --md-sys-motion-easing-emphasized: cubic-bezier(.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized-decelerate: cubic-bezier(.05, .7, .1, 1);
  --md-sys-motion-easing-emphasized-accelerate: cubic-bezier(.3, 0, .8, .15);
  --md-sys-motion-easing-standard: cubic-bezier(.2, 0, 0, 1);
  --md-sys-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-sys-motion-easing-standard-accelerate: cubic-bezier(.3, 0, 1, 1);
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-short4: 200ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-medium4: 400ms;
  --md-sys-motion-duration-long2: 500ms;

  /* ---- state layers ---- */
  --md-sys-state-hover: .08;
  --md-sys-state-focus: .10;
  --md-sys-state-pressed: .10;
  --md-sys-state-dragged: .16;

  /* ---- layout ---- */
  --md-margin: 16px;
  --md-spacer: 24px;
  --md-nav-bar-height: 80px;
  --md-nav-rail-width: 80px;
  --md-top-app-bar-height: 64px;
  --md-list-pane-width: 400px;
}
@media (min-width: 600px) { :root { --md-margin: 24px; } }
@media (min-width: 1200px) { :root { --md-list-pane-width: 440px; } }
@media (min-width: 1600px) { :root { --md-list-pane-width: 480px; } }

/* ============================================================================
   Base
   ============================================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  font: var(--md-sys-typescale-body-medium);
  letter-spacing: var(--md-sys-tracking-body-medium);
  color: var(--md-sys-color-on-surface);
  background: var(--md-sys-color-surface);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
button { cursor: pointer; }
a { color: var(--md-sys-color-primary); }
[hidden] { display: none !important; }
:focus { outline: none; }
:focus-visible {
  outline: 3px solid var(--md-sys-color-secondary);
  outline-offset: 2px;
}
::selection { background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container); }
.md-visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; }
.md-num { font-variant-numeric: tabular-nums; }

/* type helpers - the scale, as classes */
.md-display-small   { font: var(--md-sys-typescale-display-small); margin: 0; }
.md-headline-large  { font: var(--md-sys-typescale-headline-large); margin: 0; }
.md-headline-medium { font: var(--md-sys-typescale-headline-medium); margin: 0; }
.md-headline-small  { font: var(--md-sys-typescale-headline-small); margin: 0; }
.md-title-large     { font: var(--md-sys-typescale-title-large); margin: 0; }
.md-title-medium    { font: var(--md-sys-typescale-title-medium); letter-spacing: var(--md-sys-tracking-title-medium); margin: 0; }
.md-title-small     { font: var(--md-sys-typescale-title-small); letter-spacing: var(--md-sys-tracking-title-small); margin: 0; }
.md-body-large      { font: var(--md-sys-typescale-body-large); letter-spacing: var(--md-sys-tracking-body-large); }
.md-body-medium     { font: var(--md-sys-typescale-body-medium); letter-spacing: var(--md-sys-tracking-body-medium); }
.md-body-small      { font: var(--md-sys-typescale-body-small); letter-spacing: var(--md-sys-tracking-body-small); }
.md-label-large     { font: var(--md-sys-typescale-label-large); letter-spacing: var(--md-sys-tracking-label-large); }
.md-label-medium    { font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium); }
.md-on-surface-variant { color: var(--md-sys-color-on-surface-variant); }
.md-error-text { color: var(--md-sys-color-error); }

/* ============================================================================
   Icons - Material Symbols from the sprite, 24px, currentColor
   ============================================================================ */
.md-icon { width: 24px; height: 24px; flex: none; fill: currentColor; display: inline-block;
  vertical-align: middle; }
.md-icon--18 { width: 18px; height: 18px; }
.md-icon--20 { width: 20px; height: 20px; }

/* ============================================================================
   State layers - one mechanism for every interactive element
   ============================================================================ */
.md-state { position: relative; isolation: isolate; }
.md-state::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: currentColor; opacity: 0; z-index: -1;
  transition: opacity var(--md-sys-motion-duration-short2) linear;
}
@media (hover: hover) { .md-state:hover::before { opacity: var(--md-sys-state-hover); } }
.md-state:focus-visible::before { opacity: var(--md-sys-state-focus); }
.md-state:active::before { opacity: var(--md-sys-state-pressed); }

/* ============================================================================
   Buttons
   ============================================================================ */
.md-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; min-width: 48px; padding: 0 24px; border: 0;
  border-radius: var(--md-sys-shape-corner-full);
  font: var(--md-sys-typescale-label-large); letter-spacing: var(--md-sys-tracking-label-large);
  text-decoration: none; white-space: nowrap; position: relative; isolation: isolate;
  transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
/* 48dp touch target around a 40dp button */
.md-button::after { content: ""; position: absolute; left: 0; right: 0; top: -4px; bottom: -4px; }
.md-button::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; background: currentColor;
  opacity: 0; z-index: -1; transition: opacity var(--md-sys-motion-duration-short2) linear;
}
@media (hover: hover) { .md-button:hover::before { opacity: var(--md-sys-state-hover); } }
.md-button:focus-visible::before, .md-button:active::before { opacity: var(--md-sys-state-pressed); }
.md-button > .md-icon { width: 18px; height: 18px; margin-left: -8px; }
.md-button--filled { background: var(--md-sys-color-primary); color: var(--md-sys-color-on-primary); }
@media (hover: hover) { .md-button--filled:hover { box-shadow: var(--md-sys-elevation-level1); } }
.md-button--tonal { background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container); }
.md-button--outlined { background: transparent; color: var(--md-sys-color-primary);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-outline); }
.md-button--text { background: transparent; color: var(--md-sys-color-primary); padding: 0 12px; }
.md-button--error { background: var(--md-sys-color-error); color: var(--md-sys-color-on-error); }
.md-button:disabled, .md-button[aria-disabled="true"] {
  cursor: default; box-shadow: none !important;
  color: color-mix(in srgb, var(--md-sys-color-on-surface) 38%, transparent);
}
.md-button--filled:disabled, .md-button--tonal:disabled, .md-button--error:disabled {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
}
.md-button--outlined:disabled {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--md-sys-color-on-surface) 12%, transparent);
}
.md-button:disabled::before { opacity: 0 !important; }
.md-button--block { width: 100%; }

/* icon buttons: 40dp visual, 48dp target */
.md-icon-button {
  display: inline-grid; place-items: center; width: 40px; height: 40px; flex: none; border: 0;
  border-radius: var(--md-sys-shape-corner-full); background: transparent;
  color: var(--md-sys-color-on-surface-variant); position: relative; isolation: isolate;
  text-decoration: none; margin: 4px;
}
.md-icon-button::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; background: currentColor;
  opacity: 0; z-index: -1; transition: opacity var(--md-sys-motion-duration-short2) linear;
}
@media (hover: hover) { .md-icon-button:hover::before { opacity: var(--md-sys-state-hover); } }
.md-icon-button:focus-visible::before, .md-icon-button:active::before { opacity: var(--md-sys-state-pressed); }
.md-icon-button--filled { background: var(--md-sys-color-primary); color: var(--md-sys-color-on-primary); }
.md-icon-button--tonal { background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container); }
.md-icon-button[aria-pressed="true"] { color: var(--md-sys-color-primary); }

/* FAB / extended FAB */
.md-fab {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  height: 56px; min-width: 56px; padding: 0 16px; border: 0;
  border-radius: var(--md-sys-shape-corner-large);
  background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container);
  box-shadow: var(--md-sys-elevation-level3); font: var(--md-sys-typescale-label-large);
  letter-spacing: var(--md-sys-tracking-label-large); position: relative; isolation: isolate;
  text-decoration: none;
}
.md-fab::before { content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: currentColor; opacity: 0; z-index: -1; }
@media (hover: hover) { .md-fab:hover::before { opacity: var(--md-sys-state-hover); } }
.md-fab:active::before { opacity: var(--md-sys-state-pressed); }
.md-fab--extended { padding: 0 20px 0 16px; }

/* ============================================================================
   Top app bar (small)
   ============================================================================ */
.md-top-app-bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 4px;
  height: var(--md-top-app-bar-height); padding: 0 4px;
  background: var(--md-sys-color-surface); color: var(--md-sys-color-on-surface);
  transition: background-color var(--md-sys-motion-duration-short4) linear;
}
.md-top-app-bar.is-scrolled { background: var(--md-sys-color-surface-container); }
.md-top-app-bar__title {
  font: var(--md-sys-typescale-title-large); margin: 0 0 0 12px; flex: 1; min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.md-top-app-bar__title small {
  display: block; font: var(--md-sys-typescale-body-small); letter-spacing: var(--md-sys-tracking-body-small);
  color: var(--md-sys-color-on-surface-variant); margin-top: 1px;
}
.md-top-app-bar__actions { display: flex; align-items: center; }
.md-top-app-bar .md-icon-button { color: var(--md-sys-color-on-surface-variant); }
.md-top-app-bar__lead { color: var(--md-sys-color-on-surface) !important; }

/* ============================================================================
   Navigation bar (compact) and navigation rail (medium and up)
   ============================================================================ */
.md-nav-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  height: calc(var(--md-nav-bar-height) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  display: flex; background: var(--md-sys-color-surface-container);
}
.md-nav-bar__item {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; text-decoration: none; color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium);
  min-width: 0; padding: 0 2px;
}
.md-nav-indicator {
  display: grid; place-items: center; width: 64px; height: 32px;
  border-radius: var(--md-sys-shape-corner-full); position: relative; isolation: isolate;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-nav-indicator::before { content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: var(--md-sys-color-on-surface); opacity: 0; z-index: -1; }
@media (hover: hover) {
  .md-nav-bar__item:hover .md-nav-indicator::before,
  .md-nav-rail__item:hover .md-nav-indicator::before { opacity: var(--md-sys-state-hover); }
}
.md-nav-bar__item:active .md-nav-indicator::before,
.md-nav-rail__item:active .md-nav-indicator::before { opacity: var(--md-sys-state-pressed); }
.md-nav-bar__item[aria-current="page"], .md-nav-rail__item[aria-current="page"] {
  color: var(--md-sys-color-on-surface); font-weight: 700;
}
[aria-current="page"] > .md-nav-indicator {
  background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
}
.md-nav-bar__item .md-nav-label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }

.md-nav-rail {
  position: fixed; top: 0; bottom: 0; left: 0; z-index: 30; width: var(--md-nav-rail-width);
  display: none; flex-direction: column; align-items: center; gap: 12px;
  padding: 12px 0 20px; background: var(--md-sys-color-surface);
}
.md-nav-rail__brand {
  width: 56px; height: 56px; border-radius: var(--md-sys-shape-corner-large); display: grid;
  place-items: center; margin: 0 0 20px; text-decoration: none;
  background: var(--md-sys-color-primary-container); color: var(--md-sys-color-on-primary-container);
  font: 700 16px/1 var(--md-ref-typeface-brand); letter-spacing: -.3px;
}
.md-nav-rail__item {
  display: flex; flex-direction: column; align-items: center; gap: 4px; width: 80px;
  text-decoration: none; color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium);
  padding: 0 4px; text-align: center; background: none; border: 0;
}
.md-nav-rail__item .md-nav-indicator { width: 56px; }
.md-nav-rail__spacer { flex: 1; }

/* ============================================================================
   Page frame: where the content sits relative to the navigation
   ============================================================================ */
.md-app { min-height: 100vh; min-height: 100dvh; }
.md-page { padding: 0 var(--md-margin) calc(var(--md-nav-bar-height) + env(safe-area-inset-bottom) + 24px); }
.md-page--flush { padding-left: 0; padding-right: 0; }
.md-page__inner { max-width: 1040px; margin: 0 auto; }
@media (min-width: 600px) {
  .md-nav-bar { display: none; }
  .md-nav-rail { display: flex; }
  .md-app { padding-left: var(--md-nav-rail-width); }
  .md-page { padding-bottom: 32px; }
}

/* ============================================================================
   Cards
   ============================================================================ */
.md-card {
  border-radius: var(--md-sys-shape-corner-medium); padding: 16px;
  background: var(--md-sys-color-surface-container-low); color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-level1);
}
.md-card--filled { background: var(--md-sys-color-surface-container-highest); box-shadow: none; }
.md-card--outlined { background: var(--md-sys-color-surface); box-shadow: inset 0 0 0 1px var(--md-sys-color-outline-variant); }
button.md-card, a.md-card {
  display: block; width: 100%; text-align: left; border: 0; text-decoration: none;
  position: relative; isolation: isolate; color: inherit;
}
button.md-card::before, a.md-card::before { content: ""; position: absolute; inset: 0;
  border-radius: inherit; background: var(--md-sys-color-on-surface); opacity: 0; z-index: -1;
  transition: opacity var(--md-sys-motion-duration-short2) linear; }
@media (hover: hover) { button.md-card:hover::before, a.md-card:hover::before { opacity: var(--md-sys-state-hover); } }
button.md-card:active::before { opacity: var(--md-sys-state-pressed); }
.md-card[aria-pressed="true"] {
  background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
  box-shadow: none;
}

/* ============================================================================
   Lists
   ============================================================================ */
.md-list { list-style: none; margin: 0; padding: 8px 0; }
.md-list-item {
  display: flex; align-items: center; gap: 16px; width: 100%;
  min-height: 56px; padding: 8px 24px 8px 16px; border: 0; background: transparent;
  text-align: left; color: var(--md-sys-color-on-surface); text-decoration: none;
  position: relative; isolation: isolate;
}
.md-list-item--two-line { min-height: 72px; }
.md-list-item--three-line { min-height: 88px; align-items: flex-start; padding-top: 12px; padding-bottom: 12px; }
button.md-list-item::before, a.md-list-item::before { content: ""; position: absolute; inset: 0;
  background: var(--md-sys-color-on-surface); opacity: 0; z-index: -1;
  transition: opacity var(--md-sys-motion-duration-short2) linear; }
@media (hover: hover) { button.md-list-item:hover::before, a.md-list-item:hover::before { opacity: var(--md-sys-state-hover); } }
button.md-list-item:active::before { opacity: var(--md-sys-state-pressed); }
.md-list-item[aria-selected="true"], .md-list-item[aria-current="true"] {
  background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
}
.md-list-item__body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.md-list-item__overline { font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium); color: var(--md-sys-color-on-surface-variant); }
.md-list-item__headline { font: var(--md-sys-typescale-body-large); letter-spacing: var(--md-sys-tracking-body-large);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.md-list-item__supporting { font: var(--md-sys-typescale-body-medium); letter-spacing: var(--md-sys-tracking-body-medium);
  color: var(--md-sys-color-on-surface-variant); }
[aria-selected="true"] .md-list-item__supporting, [aria-selected="true"] .md-list-item__overline { color: inherit; opacity: .8; }
.md-list-item__trailing { flex: none; text-align: right; font: var(--md-sys-typescale-label-medium);
  letter-spacing: var(--md-sys-tracking-label-medium); color: var(--md-sys-color-on-surface-variant); }
.md-list-item__leading { flex: none; color: var(--md-sys-color-on-surface-variant); }
.md-divider { height: 1px; border: 0; margin: 0; background: var(--md-sys-color-outline-variant); }
.md-divider--inset { margin-left: 16px; }
.md-subheader { font: var(--md-sys-typescale-title-small); letter-spacing: var(--md-sys-tracking-title-small);
  color: var(--md-sys-color-on-surface-variant); padding: 16px 16px 8px; margin: 0; }

/* ============================================================================
   Chips - filter (selectable) and assist
   ============================================================================ */
.md-chip-set { display: flex; flex-wrap: wrap; gap: 8px; }
.md-chip-set--scroll { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding: 4px var(--md-margin);
  margin: 0 calc(-1 * var(--md-margin)); scroll-padding: var(--md-margin); }
.md-chip-set--scroll::-webkit-scrollbar { display: none; }
.md-chip {
  display: inline-flex; align-items: center; gap: 8px; flex: none;
  height: 32px; padding: 0 16px; border: 0; border-radius: var(--md-sys-shape-corner-small);
  background: transparent; color: var(--md-sys-color-on-surface-variant);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-outline-variant);
  font: var(--md-sys-typescale-label-large); letter-spacing: var(--md-sys-tracking-label-large);
  position: relative; isolation: isolate; white-space: nowrap; text-decoration: none;
}
.md-chip::after { content: ""; position: absolute; left: 0; right: 0; top: -8px; bottom: -8px; } /* 48dp target */
.md-chip::before { content: ""; position: absolute; inset: 0; border-radius: inherit;
  background: currentColor; opacity: 0; z-index: -1; transition: opacity var(--md-sys-motion-duration-short2) linear; }
@media (hover: hover) { .md-chip:hover::before { opacity: var(--md-sys-state-hover); } }
.md-chip:active::before { opacity: var(--md-sys-state-pressed); }
.md-chip .md-icon { width: 18px; height: 18px; }
.md-chip--has-icon { padding-left: 8px; }
.md-chip[aria-pressed="true"], .md-chip[aria-selected="true"] {
  background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
  box-shadow: none; padding-left: 8px;
}
.md-chip__count { font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium); opacity: .8; }

/* tags: non-interactive labels (payer, unit, status). Not an M3 component by name - they are
   the label form of a chip, sized down, coloured from the custom-colour roles */
.md-tag {
  display: inline-flex; align-items: center; gap: 4px; height: 24px; padding: 0 8px;
  border-radius: var(--md-sys-shape-corner-small); white-space: nowrap;
  font: var(--md-sys-typescale-label-medium); letter-spacing: var(--md-sys-tracking-label-medium);
  background: var(--md-sys-color-surface-container-high); color: var(--md-sys-color-on-surface-variant);
}
.md-tag .md-icon { width: 16px; height: 16px; }
.md-tag--payer { font-weight: 700; letter-spacing: .6px; }
.md-tag--ys { background: var(--md-custom-ys-container); color: var(--md-custom-on-ys-container); }
.md-tag--aa { background: var(--md-custom-aa-container); color: var(--md-custom-on-aa-container); }
.md-tag--ey { background: var(--md-custom-ey-container); color: var(--md-custom-on-ey-container); }
.md-tag--unknown, .md-tag--warning { background: var(--md-custom-warning-container); color: var(--md-custom-on-warning-container); }
.md-tag--error { background: var(--md-sys-color-error-container); color: var(--md-sys-color-on-error-container); }
.md-tag--ok { background: transparent; color: var(--md-sys-color-primary); padding-left: 0; }
.md-tag--plain { background: transparent; color: var(--md-sys-color-on-surface-variant); padding: 0; }

/* ============================================================================
   Search bar
   ============================================================================ */
.md-search {
  display: flex; align-items: center; gap: 4px; height: 56px; padding: 0 4px 0 16px;
  border-radius: var(--md-sys-shape-corner-full);
  background: var(--md-sys-color-surface-container-high); color: var(--md-sys-color-on-surface);
}
.md-search > .md-icon { color: var(--md-sys-color-on-surface); }
.md-search input {
  flex: 1; min-width: 0; height: 100%; border: 0; background: transparent; padding: 0 8px;
  font: var(--md-sys-typescale-body-large); letter-spacing: var(--md-sys-tracking-body-large);
}
.md-search input::placeholder { color: var(--md-sys-color-on-surface-variant); }
.md-search input::-webkit-search-cancel-button { display: none; }
.md-search:focus-within { outline: 3px solid var(--md-sys-color-secondary); outline-offset: 2px; }
.md-search input:focus-visible { outline: none; }

/* ============================================================================
   Text fields (outlined) and selects
   ============================================================================ */
.md-field { position: relative; display: block; margin: 8px 0 16px; }
.md-field__input {
  width: 100%; height: 56px; padding: 16px; border: 0; border-radius: var(--md-sys-shape-corner-extra-small);
  background: transparent; box-shadow: inset 0 0 0 1px var(--md-sys-color-outline);
  font: var(--md-sys-typescale-body-large); letter-spacing: var(--md-sys-tracking-body-large);
  color: var(--md-sys-color-on-surface); appearance: none;
}
select.md-field__input {
  padding-right: 48px; cursor: pointer;
  background: no-repeat right 12px center / 24px 24px;
}
.md-field__arrow { position: absolute; right: 12px; top: 16px; pointer-events: none; color: var(--md-sys-color-on-surface-variant); }
@media (hover: hover) { .md-field__input:hover { box-shadow: inset 0 0 0 1px var(--md-sys-color-on-surface); } }
.md-field__input:focus, .md-field__input:focus-visible {
  outline: none; box-shadow: inset 0 0 0 2px var(--md-sys-color-primary);
}
.md-field__label {
  position: absolute; left: 12px; top: -8px; padding: 0 4px;
  font: var(--md-sys-typescale-body-small); letter-spacing: var(--md-sys-tracking-body-small);
  color: var(--md-sys-color-on-surface-variant); background: var(--md-field-label-bg, var(--md-sys-color-surface));
  pointer-events: none;
}
.md-field:focus-within .md-field__label { color: var(--md-sys-color-primary); }
.md-field__support { display: block; padding: 4px 16px 0; font: var(--md-sys-typescale-body-small);
  letter-spacing: var(--md-sys-tracking-body-small); color: var(--md-sys-color-on-surface-variant); }
.md-field--error .md-field__input { box-shadow: inset 0 0 0 2px var(--md-sys-color-error); }
.md-field--error .md-field__label, .md-field--error .md-field__support { color: var(--md-sys-color-error); }
.md-field__prefix { position: absolute; left: 16px; top: 16px; color: var(--md-sys-color-on-surface-variant);
  font: var(--md-sys-typescale-body-large); pointer-events: none; }
.md-field--prefixed .md-field__input { padding-left: 32px; }

/* ============================================================================
   Segmented buttons
   ============================================================================ */
.md-segmented { display: flex; border-radius: var(--md-sys-shape-corner-full);
  box-shadow: inset 0 0 0 1px var(--md-sys-color-outline); overflow: hidden; }
.md-segmented > button {
  flex: 1; height: 40px; min-width: 48px; border: 0; background: transparent; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: var(--md-sys-typescale-label-large); letter-spacing: var(--md-sys-tracking-label-large);
  color: var(--md-sys-color-on-surface); position: relative; isolation: isolate;
}
.md-segmented > button + button { box-shadow: inset 1px 0 0 var(--md-sys-color-outline); }
.md-segmented > button::before { content: ""; position: absolute; inset: 0; background: currentColor;
  opacity: 0; z-index: -1; }
@media (hover: hover) { .md-segmented > button:hover::before { opacity: var(--md-sys-state-hover); } }
.md-segmented > button[aria-pressed="true"] {
  background: var(--md-sys-color-secondary-container); color: var(--md-sys-color-on-secondary-container);
}
.md-segmented > button .md-icon { width: 18px; height: 18px; }

/* ============================================================================
   Tabs (primary)
   ============================================================================ */
.md-tabs { display: flex; overflow-x: auto; scrollbar-width: none; background: var(--md-sys-color-surface);
  box-shadow: inset 0 -1px 0 var(--md-sys-color-surface-variant); }
.md-tabs::-webkit-scrollbar { display: none; }
.md-tab {
  flex: 1 0 auto; min-width: 90px; height: 48px; padding: 0 16px; border: 0; background: transparent;
  font: var(--md-sys-typescale-title-small); letter-spacing: var(--md-sys-tracking-title-small);
  color: var(--md-sys-color-on-surface-variant); position: relative; isolation: isolate;
  text-decoration: none; display: inline-flex; align-items: center; justify-content: center;
}
.md-tab::before { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; z-index: -1; }
@media (hover: hover) { .md-tab:hover::before { opacity: var(--md-sys-state-hover); } }
.md-tab[aria-selected="true"], .md-tab.active { color: var(--md-sys-color-primary); }
.md-tab[aria-selected="true"]::after, .md-tab.active::after {
  content: ""; position: absolute; bottom: 0; left: 16px; right: 16px; height: 3px;
  background: var(--md-sys-color-primary); border-radius: 3px 3px 0 0;
}

/* ============================================================================
   Linear progress - used as the "how much is checked" indicator
   ============================================================================ */
.md-progress { height: 8px; border-radius: var(--md-sys-shape-corner-full); overflow: hidden;
  background: var(--md-sys-color-secondary-container); display: flex; gap: 4px; }
.md-progress > i { display: block; height: 100%; background: var(--md-sys-color-primary);
  border-radius: var(--md-sys-shape-corner-full); }
.md-progress--indeterminate > i { width: 30%; animation: md-indeterminate 1.4s var(--md-sys-motion-easing-standard) infinite; }
@keyframes md-indeterminate { 0% { transform: translateX(-100%); } 100% { transform: translateX(400%); } }

/* ============================================================================
   Sheets, dialogs, menus, snackbar
   ============================================================================ */
.md-scrim { position: fixed; inset: 0; z-index: 40; background: var(--md-sys-color-scrim);
  opacity: 0; pointer-events: none; transition: opacity var(--md-sys-motion-duration-medium2) linear; }
.md-scrim.is-open { opacity: .32; pointer-events: auto; }

.md-dialog {
  position: fixed; z-index: 60; left: 50%; top: 50%; translate: -50% -50%;
  width: min(560px, calc(100vw - 48px)); max-height: calc(100vh - 48px); overflow: auto;
  padding: 24px; border-radius: var(--md-sys-shape-corner-extra-large);
  background: var(--md-sys-color-surface-container-high); color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-level3);
}
.md-dialog__headline { font: var(--md-sys-typescale-headline-small); margin: 0 0 16px; }
.md-dialog__body { font: var(--md-sys-typescale-body-medium); letter-spacing: var(--md-sys-tracking-body-medium);
  color: var(--md-sys-color-on-surface-variant); }
.md-dialog__actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 24px; }

.md-menu {
  position: absolute; z-index: 70; min-width: 200px; max-width: 280px; padding: 8px 0;
  border-radius: var(--md-sys-shape-corner-extra-small);
  background: var(--md-sys-color-surface-container); color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-level2);
}
.md-menu__item {
  display: flex; align-items: center; gap: 12px; width: 100%; height: 48px; padding: 0 12px;
  border: 0; background: transparent; text-align: left; text-decoration: none;
  font: var(--md-sys-typescale-label-large); letter-spacing: var(--md-sys-tracking-label-large);
  color: var(--md-sys-color-on-surface); position: relative; isolation: isolate;
}
.md-menu__item .md-icon { color: var(--md-sys-color-on-surface-variant); }
.md-menu__item::before { content: ""; position: absolute; inset: 0; background: currentColor; opacity: 0; z-index: -1; }
@media (hover: hover) { .md-menu__item:hover::before { opacity: var(--md-sys-state-hover); } }
.md-menu__item:active::before { opacity: var(--md-sys-state-pressed); }

.md-snackbar {
  position: fixed; z-index: 80; left: 50%; translate: -50% 0;
  bottom: calc(var(--md-nav-bar-height) + env(safe-area-inset-bottom) + 16px);
  width: max-content; max-width: min(560px, calc(100vw - 32px)); min-height: 48px;
  display: flex; align-items: center; gap: 8px; padding: 6px 8px 6px 16px;
  border-radius: var(--md-sys-shape-corner-extra-small);
  background: var(--md-sys-color-inverse-surface); color: var(--md-sys-color-inverse-on-surface);
  box-shadow: var(--md-sys-elevation-level3);
  font: var(--md-sys-typescale-body-medium); letter-spacing: var(--md-sys-tracking-body-medium);
  opacity: 0; transform: translateY(8px); pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-short4) linear,
              transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-emphasized-decelerate);
}
.md-snackbar.is-open { opacity: 1; transform: none; pointer-events: auto; }
.md-snackbar .md-button--text { color: var(--md-sys-color-inverse-primary); }
@media (min-width: 600px) { .md-snackbar { bottom: 24px; left: calc(50% + var(--md-nav-rail-width) / 2); } }

/* modal bottom sheet (compact) */
.md-bottom-sheet {
  position: fixed; z-index: 50; left: 50%; bottom: 0; translate: -50% 0;
  width: min(640px, 100vw); max-height: 92vh; display: flex; flex-direction: column;
  border-radius: var(--md-sys-shape-corner-extra-large) var(--md-sys-shape-corner-extra-large) 0 0;
  background: var(--md-sys-color-surface-container-low); box-shadow: var(--md-sys-elevation-level1);
  transform: translateY(101%);
  transition: transform var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized-decelerate);
}
.md-bottom-sheet.is-open { transform: none; }
.md-drag-handle { width: 32px; height: 4px; border-radius: 2px; margin: 22px auto 0; flex: none;
  background: color-mix(in srgb, var(--md-sys-color-on-surface-variant) 40%, transparent); }

/* ============================================================================
   Canonical layout: list-detail
   compact   one pane at a time - the detail covers the list, with a back arrow
   expanded  two panes side by side, 24dp spacer between them
   ============================================================================ */
.md-list-detail { display: block; }
.md-list-detail__list { min-width: 0; }
.md-list-detail__detail {
  position: fixed; inset: 0; z-index: 45; overflow: auto; overscroll-behavior: contain;
  background: var(--md-sys-color-surface);
  transform: translateX(100%); visibility: hidden;
  transition: transform var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized-decelerate),
              visibility 0s linear var(--md-sys-motion-duration-medium4);
}
.md-list-detail.has-detail .md-list-detail__detail {
  transform: none; visibility: visible;
  transition: transform var(--md-sys-motion-duration-medium4) var(--md-sys-motion-easing-emphasized-decelerate);
}
.md-list-detail__empty { display: none; }
@media (min-width: 600px) { .md-list-detail__detail { left: var(--md-nav-rail-width); } }
@media (min-width: 840px) {
  .md-list-detail {
    display: grid; grid-template-columns: var(--md-list-pane-width) minmax(0, 1fr);
    gap: var(--md-spacer); align-items: start;
  }
  .md-list-detail__list { position: sticky; top: 0; }
  .md-list-detail__detail {
    position: sticky; top: 16px; inset: auto; z-index: auto; transform: none; visibility: visible;
    transition: none; max-height: calc(100vh - 32px); border-radius: var(--md-sys-shape-corner-large);
    background: var(--md-sys-color-surface-container-low);
  }
  .md-list-detail__back { display: none !important; }
  .md-list-detail:not(.has-detail) .md-list-detail__content { display: none; }
  .md-list-detail:not(.has-detail) .md-list-detail__empty {
    display: grid; place-items: center; text-align: center; min-height: 420px; padding: 32px;
    color: var(--md-sys-color-on-surface-variant);
  }
}

/* ============================================================================
   Tables - M3 defines no data table, so these are built from its tokens:
   title-small headers, body-medium cells, outline-variant dividers, state layers
   ============================================================================ */
.md-table-wrap { overflow-x: auto; border-radius: var(--md-sys-shape-corner-medium);
  background: var(--md-sys-color-surface-container-low); }
.md-table { width: 100%; border-collapse: collapse; font: var(--md-sys-typescale-body-medium);
  letter-spacing: var(--md-sys-tracking-body-medium); }
.md-table th {
  text-align: left; padding: 0 16px; height: 56px; white-space: nowrap;
  font: var(--md-sys-typescale-title-small); letter-spacing: var(--md-sys-tracking-title-small);
  color: var(--md-sys-color-on-surface-variant);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.md-table td { padding: 14px 16px; vertical-align: top; border-bottom: 1px solid var(--md-sys-color-outline-variant); }
.md-table tr:last-child td { border-bottom: 0; }
@media (hover: hover) { .md-table tbody tr:hover { background: color-mix(in srgb, var(--md-sys-color-on-surface) 4%, transparent); } }

/* ============================================================================
   Empty and loading states
   ============================================================================ */
.md-empty { padding: 48px 24px; text-align: center; color: var(--md-sys-color-on-surface-variant); }
.md-empty .md-icon { width: 40px; height: 40px; margin-bottom: 8px; color: var(--md-sys-color-outline); }
.md-skeleton { border-radius: var(--md-sys-shape-corner-small);
  background: linear-gradient(90deg, var(--md-sys-color-surface-container) 0%,
    var(--md-sys-color-surface-container-high) 50%, var(--md-sys-color-surface-container) 100%);
  background-size: 200% 100%; animation: md-shimmer 1.4s linear infinite; }
@keyframes md-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
}

/* ============================================================================
   live.js draws a persistent "live updates" status with inline styles, at bottom-left -
   which on a phone lands on top of the navigation bar. It is re-placed here as a quiet
   status pill above the bar. !important because it has to beat an inline style attribute.
   ============================================================================ */
#liveUpdateStatus {
  position: fixed !important; left: auto !important; right: 12px !important;
  bottom: calc(var(--md-nav-bar-height) + env(safe-area-inset-bottom) + 8px) !important;
  z-index: 35 !important; padding: 4px 10px !important; border: 0 !important; margin: 0 !important;
  border-radius: var(--md-sys-shape-corner-full) !important;
  background: var(--md-sys-color-surface-container-high) !important;
  color: var(--md-sys-color-on-surface-variant) !important;
  box-shadow: inset 0 0 0 1px var(--md-sys-color-outline-variant) !important;
  font: var(--md-sys-typescale-label-medium) !important; letter-spacing: var(--md-sys-tracking-label-medium) !important;
}
@media (min-width: 600px) { #liveUpdateStatus { bottom: 16px !important; } }