/* Yohaku Garden wearing Jakub better-ui. Desk, spine, crop, catalog, bands, slip. */

:root {
  color-scheme: light dark;

  /* Primitives — never used on components */
  --paper-50: oklch(0.962 0.012 92);
  --paper-100: oklch(0.932 0.014 92);
  --paper-200: oklch(0.878 0.016 92);
  --paper-300: oklch(0.792 0.016 92);
  --paper-400: oklch(0.668 0.014 92);
  --paper-500: oklch(0.548 0.012 92);
  --paper-600: oklch(0.432 0.012 92);
  --paper-700: oklch(0.348 0.010 92);
  --paper-800: oklch(0.268 0.010 92);
  --paper-900: oklch(0.214 0.008 92);
  --paper-950: oklch(0.168 0.008 92);

  --vermilion-50: oklch(0.958 0.018 27);
  --vermilion-100: oklch(0.918 0.038 27);
  --vermilion-200: oklch(0.852 0.068 27);
  --vermilion-300: oklch(0.748 0.110 27);
  --vermilion-400: oklch(0.642 0.158 27);
  --vermilion-500: oklch(0.538 0.188 27);
  --vermilion-600: oklch(0.448 0.168 27);
  --vermilion-700: oklch(0.382 0.142 27);
  --vermilion-800: oklch(0.318 0.102 27);
  --vermilion-900: oklch(0.258 0.064 27);

  --amber-100: oklch(0.938 0.038 72);
  --amber-200: oklch(0.872 0.062 72);
  --amber-700: oklch(0.392 0.086 72);

  /* Semantics — the only tier components reference */
  --color-bg-page: var(--paper-50);
  --color-bg-surface: oklch(0.978 0.008 92);
  --color-bg-raised: oklch(0.978 0.008 92);
  --color-bg-sunken: var(--paper-100);
  --color-bg-overlay: oklch(0.214 0.008 92 / 0.36);
  --color-bg-surface-hover: var(--paper-100);

  --color-text-primary: var(--paper-900);
  --color-text-secondary: var(--paper-700);
  --color-text-disabled: var(--paper-500);
  --color-text-inverse: var(--paper-50);
  --color-text-on-accent: var(--paper-50);

  --color-border-subtle: var(--paper-200);
  --color-border-default: var(--paper-300);
  --color-border-strong: var(--paper-400);
  --color-border-focus: var(--vermilion-700);
  --color-border-separator: var(--paper-200);

  --color-accent-subtle: var(--vermilion-50);
  --color-accent-border: var(--vermilion-200);
  --color-accent-solid: var(--vermilion-600);
  --color-accent-solid-hover: var(--vermilion-700);
  --color-accent-text: var(--vermilion-700);

  --color-danger-subtle: var(--vermilion-50);
  --color-danger-border: var(--vermilion-200);
  --color-danger-solid: var(--vermilion-500);
  --color-danger-text: var(--vermilion-800);

  --color-warning-subtle: var(--amber-100);
  --color-warning-border: var(--amber-200);
  --color-warning-text: var(--amber-700);

  --color-outline-image: oklch(0 0 0 / 0.1);

  --shadow-border:
    0px 0px 0px 1px oklch(0 0 0 / 0.06),
    0px 1px 2px -1px oklch(0 0 0 / 0.06),
    0px 2px 4px 0px oklch(0 0 0 / 0.04);
  --shadow-border-hover:
    0px 0px 0px 1px oklch(0 0 0 / 0.08),
    0px 1px 2px -1px oklch(0 0 0 / 0.08),
    0px 2px 4px 0px oklch(0 0 0 / 0.06);
  --shadow-raised:
    0px 0px 0px 1px oklch(0 0 0 / 0.06),
    0px 8px 24px -8px oklch(0 0 0 / 0.10),
    0px 2px 6px oklch(0 0 0 / 0.04);

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --duration-fast: 150ms;
  --duration-enter: 400ms;
  --duration-exit: 150ms;
  --duration-icon: 300ms;

  --radius-control: 6px;
  --radius-well: 8px;
  --radius-plate: 16px; /* well 8 + pad 8 */
  --radius-slip: 12px;
  --radius-tooltip: 10px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 2rem;
  --space-4: 3rem;
  --space-5: 6rem;

  --text-display: 2.25rem;
  --text-title: 1.5rem;
  --text-heading: 1.125rem;
  --text-body: 1rem;
  --text-caption: 0.8125rem;

  --font-serif: "Noto Serif JP", "Iowan Old Style", Palatino, serif;
  --font-sans: "Noto Sans JP", ui-sans-serif, system-ui, sans-serif;

  --sheet: 32.5rem;
  --measure: 62ch;
  --page-pad: max(1.5rem, env(safe-area-inset-left), env(safe-area-inset-right));
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-page: var(--paper-950);
    --color-bg-surface: oklch(0.200 0.010 92);
    --color-bg-raised: oklch(0.228 0.012 92);
    --color-bg-sunken: oklch(0.154 0.008 92);
    --color-bg-overlay: oklch(0.050 0.008 92 / 0.62);
    --color-bg-surface-hover: oklch(0.236 0.012 92);

    --color-text-primary: oklch(0.936 0.010 92);
    --color-text-secondary: oklch(0.752 0.012 92);
    --color-text-disabled: oklch(0.612 0.010 92);
    --color-text-inverse: var(--paper-950);
    --color-text-on-accent: var(--paper-950);

    --color-border-subtle: oklch(0.280 0.012 92);
    --color-border-default: oklch(0.332 0.012 92);
    --color-border-strong: oklch(0.418 0.012 92);
    --color-border-focus: oklch(0.780 0.090 27);
    --color-border-separator: oklch(0.280 0.012 92);

    --color-accent-subtle: oklch(0.248 0.036 27);
    --color-accent-border: oklch(0.382 0.068 27);
    --color-accent-solid: oklch(0.742 0.128 27);
    --color-accent-solid-hover: oklch(0.802 0.112 27);
    --color-accent-text: oklch(0.802 0.092 27);

    --color-danger-subtle: oklch(0.248 0.036 27);
    --color-danger-border: oklch(0.360 0.068 27);
    --color-danger-solid: oklch(0.640 0.140 27);
    --color-danger-text: oklch(0.820 0.080 27);

    --color-warning-subtle: oklch(0.248 0.036 72);
    --color-warning-border: oklch(0.352 0.056 72);
    --color-warning-text: oklch(0.820 0.068 72);

    --color-outline-image: oklch(1 0 0 / 0.1);

    --shadow-border: 0 0 0 1px oklch(1 0 0 / 0.08);
    --shadow-border-hover: 0 0 0 1px oklch(1 0 0 / 0.13);
    --shadow-raised: 0 0 0 1px oklch(1 0 0 / 0.10);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--color-bg-page);
}

body.skin-garden-jakub {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: var(--text-body);
  font-synthesis: none;
  line-height: 1.55;
  letter-spacing: 0;
}

::selection {
  background: var(--color-accent-solid);
  color: var(--color-text-on-accent);
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: inherit;
  text-decoration-thickness: from-font;
  text-underline-position: from-font;
  text-decoration-skip-ink: auto;
}

button,
textarea,
input {
  font: inherit;
  letter-spacing: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: oklch(0.448 0.168 27 / 0.16);
}

/* Skip + focus */
.skip-link {
  position: absolute;
  inset-inline-start: -999px;
  top: 1rem;
  z-index: 200;
  padding: 0.6rem 0.9rem;
  background: var(--color-bg-raised);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-raised);
  border-radius: var(--radius-well);
  text-decoration: none;
}

.skip-link:focus {
  inset-inline-start: 1rem;
}

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

@media (forced-colors: active) {
  :focus-visible {
    outline: 2px solid Highlight;
  }
}

#main {
  scroll-margin-top: 5rem;
}

/* Icons: 1.5 beside regular, 2 beside semibold */
.icon {
  width: 1.125em;
  height: 1.125em;
  display: block;
  flex-shrink: 0;
  stroke-width: 1.5;
}

.icon-heavy {
  stroke-width: 2;
}

.icon-play {
  transform: translateX(2px);
}

[dir="rtl"] .icon-directional {
  scale: -1 1;
}

.icon-swap {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 1.125em;
  height: 1.125em;
}

.icon-swap .icon-a,
.icon-swap .icon-b {
  grid-area: 1 / 1;
}

.icon-swap .icon-b {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0;
}

.playing .icon-swap .icon-a,
#btnTogglePhysics[aria-pressed="false"] .icon-swap .icon-a {
  opacity: 0;
}

.playing .icon-swap .icon-b,
#btnTogglePhysics[aria-pressed="false"] .icon-swap .icon-b {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .icon-swap .icon-a,
  .icon-swap .icon-b {
    transition-property: opacity, filter, scale;
    transition-duration: var(--duration-icon);
    transition-timing-function: var(--ease-standard);
  }

  .icon-swap .icon-b {
    scale: 0.25;
    filter: blur(4px);
  }

  .playing .icon-swap .icon-a,
  #btnTogglePhysics[aria-pressed="false"] .icon-swap .icon-a {
    scale: 0.25;
    filter: blur(4px);
  }

  .playing .icon-swap .icon-b,
  #btnTogglePhysics[aria-pressed="false"] .icon-swap .icon-b {
    scale: 1;
    filter: blur(0);
  }
}

.pressable {
  transition-property: scale, box-shadow, background-color;
  transition-duration: var(--duration-fast);
  transition-timing-function: ease-out;
}

.pressable:active:not(:disabled) {
  scale: 0.96;
}

/* Folio line */
.folio-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
  padding: 2rem var(--page-pad) 0;
  background: transparent;
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.folio-nav a {
  color: var(--color-text-secondary);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-block: 0.5rem;
  border-block-end: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

@media (hover: hover) {
  .folio-nav a:hover {
    color: var(--color-text-primary);
  }
}

.folio-nav a[aria-current="page"] {
  color: var(--color-text-primary);
  border-block-end-color: var(--color-text-primary);
}

/* Desk: emptiness around a single sheet */
.desk {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0;
  width: 100%;
  padding: 6rem var(--page-pad) 10rem;
}

.spine {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 3rem;
  padding-block-start: 3rem;
  margin-inline-end: 2rem;
  flex-shrink: 0;
}

.red-mark {
  display: block;
  width: 5px;
  height: 5px;
  background: var(--color-accent-solid);
  margin-block-end: 2rem;
  border-radius: 1px;
}

.spine-word {
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: var(--text-caption);
  letter-spacing: 0.42em;
  color: var(--color-text-primary);
}

.spine-sku {
  margin: 2rem 0 0;
  writing-mode: vertical-rl;
  font-size: var(--text-caption);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.sheet {
  position: relative;
  width: min(var(--sheet), 100%);
  padding-block-start: 3rem;
}

/* Print crop marks */
.crop {
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
}

.crop::before,
.crop::after {
  content: "";
  position: absolute;
  background: var(--color-border-subtle);
}

.crop::before {
  width: 14px;
  height: 1px;
}

.crop::after {
  width: 1px;
  height: 14px;
}

.crop-tl { top: 0; left: -22px; }
.crop-tl::before { top: 0; right: 0; }
.crop-tl::after { top: 0; right: 0; }

.crop-tr { top: 0; right: -22px; }
.crop-tr::before { top: 0; left: 0; }
.crop-tr::after { top: 0; left: 0; }

.crop-bl { bottom: 0; left: -22px; }
.crop-bl::before { bottom: 0; right: 0; }
.crop-bl::after { bottom: 0; right: 0; }

.crop-br { bottom: 0; right: -22px; }
.crop-br::before { bottom: 0; left: 0; }
.crop-br::after { bottom: 0; left: 0; }

/* Mast */
.mast {
  padding-block-end: 6rem;
}

.word-latin {
  margin: 0 0 0.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--text-display);
  font-weight: 400;
  letter-spacing: 0.16em;
  line-height: 1.1;
  text-wrap: balance;
}

.lede {
  margin: 2rem 0 0;
  max-width: var(--measure);
  color: var(--color-text-secondary);
  font-family: var(--font-serif);
  font-size: var(--text-body);
  line-height: 1.6;
  text-wrap: pretty;
}

.mast-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  margin-block-start: 3rem;
  padding-block-start: 1rem;
  border-block-start: 1px solid var(--color-border-separator);
}

.badge,
#statusBadge {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: var(--text-caption);
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.stamp-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.mast-meta .text-btn {
  margin-inline-start: auto;
}

@media (prefers-reduced-motion: no-preference) {
  .enter {
    animation: fade-in-up var(--duration-enter) ease-out both;
  }

  .mast .enter:nth-child(1) { animation-delay: 0ms; }
  .mast .enter:nth-child(2) { animation-delay: 100ms; }
  .mast .enter:nth-child(3) { animation-delay: 200ms; }
  .mast .enter:nth-child(4) { animation-delay: 300ms; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* Bands */
.band {
  padding-block-start: 6rem;
  border-block-start: 1px solid var(--color-border-separator);
}

.band-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-block-end: 2rem;
}

.num {
  font-family: var(--font-serif);
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  color: var(--color-text-primary);
}

.band-name,
.section-kicker,
.section-label span {
  margin: 0;
  font-size: var(--text-caption);
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.meta,
#historyLinkStatus,
#safetyIndicator {
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

#historyLinkStatus {
  margin-inline-start: auto;
}

.aside {
  margin: 0 0 2rem;
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  line-height: 1.5;
  text-wrap: pretty;
}

/* Catalog: product lines */
.catalog {
  list-style: none;
  margin: 0 0 3rem;
  padding: 0;
}

.catalog li + li {
  border-block-start: 1px solid var(--color-border-separator);
}

.catalog-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  min-height: 44px;
  padding-block: 0.75rem;
  border: 0;
  background: none;
  text-align: start;
}

@media (hover: hover) {
  .catalog-item:hover {
    color: var(--color-accent-text);
  }
}

.sku {
  flex: 0 0 3.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.catalog-name {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  line-height: 1.4;
}

/* Field */
.field-label {
  display: block;
  margin-block-end: 0.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

textarea#thoughtInput {
  display: block;
  width: 100%;
  min-height: 10.5rem;
  margin: 0;
  padding: 0.75rem 0 1rem;
  border: 0;
  border-block-end: 1px solid var(--color-border-default);
  border-radius: var(--radius-well);
  background: transparent;
  color: var(--color-text-primary);
  font-size: 1rem;
  line-height: 1.55;
  resize: vertical;
  caret-color: var(--color-accent-solid);
}

textarea#thoughtInput::placeholder {
  color: var(--color-text-disabled);
}

textarea#thoughtInput:focus {
  border-block-end-color: var(--color-text-primary);
  outline: none;
}

textarea#thoughtInput:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
}

.compose-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-block-start: 2rem;
}

.hint {
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

/* Controls */
.btn-primary,
.btn-ghost,
.btn-ctrl,
.btn-audio,
.drawer-head button,
.drawer-footer button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  background: var(--color-bg-raised);
  color: var(--color-text-primary);
  border: 0;
  border-radius: var(--radius-control);
  padding-block: 0.55rem;
  padding-inline: 0.85rem;
  font-size: var(--text-caption);
  font-weight: 400;
  box-shadow: var(--shadow-border);
}

.btn-primary {
  padding-inline-start: 1rem;
  padding-inline-end: 0.875rem;
  background: var(--color-accent-solid);
  color: var(--color-text-on-accent);
  font-weight: 600;
  box-shadow: none;
}

@media (hover: hover) {
  .btn-primary:hover:not(:disabled) {
    background: var(--color-accent-solid-hover);
  }

  .btn-ctrl:hover,
  .btn-audio:hover,
  .drawer-head button:hover,
  .drawer-footer button:hover {
    box-shadow: var(--shadow-border-hover);
    background: var(--color-bg-surface-hover);
  }
}

.text-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 44px;
  background: none;
  border: 0;
  border-block-end: 1px solid transparent;
  border-radius: var(--radius-control);
  padding: 0.5rem 0;
  font-size: var(--text-caption);
  box-shadow: none;
}

@media (hover: hover) {
  .text-btn:hover {
    border-block-end-color: var(--color-text-primary);
  }
}

.btn-primary:disabled,
.btn-primary.is-busy {
  opacity: 0.55;
  cursor: wait;
}

/* Pipeline: hidden until JS */
#pipelineProgress,
.pipeline-progress {
  display: none;
  align-items: center;
  gap: 1rem;
  margin-block-start: 1rem;
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

#pipelineProgress[style*="flex"] {
  display: flex;
}

/* Safety */
#safetyBanner,
.safety-banner {
  display: none;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 0;
  margin: 0;
  border-block: 1px solid var(--color-warning-border);
  background: var(--color-warning-subtle);
  color: var(--color-warning-text);
  font-size: 0.9375rem;
  line-height: 1.5;
  box-shadow: none;
}

.safety-banner.caution {
  display: flex;
}

.safety-banner.safe-badge {
  display: inline;
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-weight: 400;
  background: none;
  border: 0;
  padding: 0;
}

.safety-alert {
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-warning-text);
}

#safetyIndicator {
  min-height: 0;
}

/* The field */
.field-toolbar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-block-end: 2rem;
}

.canvas-filters,
.canvas-controls,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.filter-btn {
  min-height: 44px;
  padding: 0.5rem 0;
  border: 0;
  border-block-end: 1px solid transparent;
  border-radius: var(--radius-control);
  background: none;
  color: var(--color-text-secondary);
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (hover: hover) {
  .filter-btn:hover {
    color: var(--color-text-primary);
  }
}

.filter-btn.active {
  color: var(--color-text-primary);
  background: none;
  border-block-end-color: var(--color-text-primary);
}

.btn-ctrl {
  min-width: 44px;
  padding-inline: 0.7rem;
  text-align: center;
}

.field-plate {
  padding: 8px;
  border-radius: var(--radius-plate);
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-border);
}

#canvasWrapper,
.canvas-wrapper {
  position: relative;
  width: 100%;
  min-height: 420px;
  height: 48vh;
  overflow: hidden;
  border: 0;
  background: var(--color-bg-sunken);
  border-radius: var(--radius-well);
  box-shadow: none;
}

#graphCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

#canvasTooltip,
.canvas-tooltip {
  display: none;
  position: absolute;
  z-index: 20;
  max-width: 16.25rem;
  padding: 1rem;
  pointer-events: none;
  background: var(--color-bg-raised);
  color: var(--color-text-primary);
  border: 0;
  border-radius: var(--radius-tooltip);
  box-shadow: var(--shadow-raised);
}

#tooltipTitle {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

#tooltipTitle .tooltip-mark {
  margin-inline-end: 0.5rem;
  color: var(--color-text-secondary);
}

#tooltipMeta {
  margin-block-start: 0.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

#tooltipSnippet {
  margin-block-start: 0.5rem;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
  text-wrap: pretty;
}

#graphHud,
.graph-hud {
  position: absolute;
  inset-inline-start: 1rem;
  bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

/* Return / reverse */
.card {
  background: none;
  border-radius: 0;
  box-shadow: none;
}

.card-body {
  margin: 0 0 2rem;
  min-height: 6rem;
  max-width: var(--measure);
  color: var(--color-text-primary);
  font-family: var(--font-serif);
  line-height: 1.6;
  overflow-wrap: break-word;
  text-wrap: pretty;
}

.placeholder-text {
  color: var(--color-text-secondary);
}

.btn-audio {
  padding-inline-start: 0.85rem;
  padding-inline-end: 0.725rem;
}

.btn-audio.loading,
.btn-audio.playing {
  background: var(--color-accent-subtle);
  color: var(--color-accent-text);
}

#audioBtnIcon {
  font-size: 1em;
  letter-spacing: 0;
  color: inherit;
}

/* History as a paper slip */
#historyBackdrop,
.history-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: 90;
}

#historyBackdrop.open,
.history-backdrop.open {
  display: block;
}

#historyDrawer,
.history-drawer {
  position: fixed;
  top: 12vh;
  left: 50%;
  width: min(21.25rem, calc(100% - 3rem));
  height: auto;
  max-height: 76vh;
  z-index: 95;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-raised);
  border: 0;
  border-radius: var(--radius-slip);
  box-shadow: var(--shadow-raised);
  transform: translate(-50%, -12px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  overscroll-behavior: contain;
}

#historyDrawer.open,
.history-drawer.open {
  transform: translate(-50%, 0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (prefers-reduced-motion: no-preference) {
  #historyBackdrop.open,
  .history-backdrop.open {
    transition-property: opacity;
    transition-duration: var(--duration-enter);
    transition-timing-function: var(--ease-standard);
  }

  #historyDrawer,
  .history-drawer {
    transition-property: opacity, transform;
    transition-duration: var(--duration-enter);
    transition-timing-function: var(--ease-standard);
  }

  #historyDrawer:not(.open),
  .history-drawer:not(.open) {
    transition-duration: var(--duration-exit);
    transition-timing-function: ease-out;
  }
}

.history-drawer .crop-tl { top: -1px; left: -22px; }
.history-drawer .crop-tr { top: -1px; right: -22px; }
.history-drawer .crop-bl { bottom: -1px; left: -22px; }
.history-drawer .crop-br { bottom: -1px; right: -22px; }

.drawer-head,
.drawer-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 1.5rem 1.5rem 1rem;
}

.drawer-head {
  border-block-end: 1px solid var(--color-border-separator);
}

.slip-kicker {
  flex: 1 0 100%;
  margin: 0 0 0.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.drawer-head strong {
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  font-weight: 400;
}

.drawer-footer {
  border-block-start: 1px solid var(--color-border-separator);
  padding: 1rem 1.5rem 1.5rem;
}

.drawer-head button,
.drawer-footer button {
  background: transparent;
  box-shadow: none;
  padding-inline: 0.25rem;
}

@media (hover: hover) {
  .drawer-head button:hover,
  .drawer-footer button:hover {
    box-shadow: none;
    background: transparent;
    color: var(--color-text-primary);
  }
}

.drawer-footer .btn-danger {
  color: var(--color-danger-text);
}

#drawerList,
.drawer-list {
  flex: 1;
  overflow: auto;
  padding: 0 1.5rem;
  overscroll-behavior: contain;
}

.history-empty {
  padding: 3rem 0;
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
  text-wrap: pretty;
}

.history-item {
  padding: 1rem 0;
  border-block-end: 1px solid var(--color-border-separator);
  cursor: pointer;
}

@media (hover: hover) {
  .history-item:hover {
    color: var(--color-accent-text);
  }
}

.history-item-top {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: var(--text-caption);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
}

.history-item-preview {
  margin-block-start: 0.5rem;
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  line-height: 1.5;
  overflow-wrap: break-word;
}

.history-item-del {
  border: 0;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  padding: 0 0 0 0.5rem;
}

/* Colophon */
.colophon {
  width: min(calc(var(--sheet) + 5rem), calc(100% - 4rem));
  margin: 0 auto;
  padding: 0 0 calc(6rem + env(safe-area-inset-bottom));
  border-block-start: 1px solid var(--color-border-separator);
  font-size: var(--text-caption);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.colophon p {
  margin: 1rem 0 0;
}

img {
  outline: 1px solid var(--color-outline-image);
  outline-offset: -1px;
}

@media (max-width: 45rem) {
  .desk {
    flex-direction: column;
    padding: 3rem var(--page-pad) 8rem;
  }

  .spine {
    flex-direction: row;
    align-items: center;
    width: 100%;
    margin: 0 0 2rem;
    padding: 0;
    gap: 1rem;
  }

  .spine-word,
  .spine-sku {
    writing-mode: horizontal-tb;
    letter-spacing: 0.16em;
  }

  .red-mark {
    margin: 0;
  }

  .sheet {
    padding-block-start: 2rem;
  }

  .crop-tl,
  .crop-bl,
  .history-drawer .crop-tl,
  .history-drawer .crop-bl { left: 0; }

  .crop-tr,
  .crop-br,
  .history-drawer .crop-tr,
  .history-drawer .crop-br { right: 0; }

  h1 {
    font-size: var(--text-title);
  }

  .mast {
    padding-block-end: 3rem;
  }

  .band {
    padding-block-start: 3rem;
  }

  .mast-meta .text-btn {
    margin-inline-start: 0;
  }

  .folio-nav {
    justify-content: flex-start;
    padding: 1.5rem var(--page-pad) 0;
  }

  .colophon {
    width: calc(100% - 3rem);
  }
}