/* Yohaku — MUJI / Kenya Hara tokens. Never white, never black, never shadow. */

:root {
  --ground: #F4F2EC;
  --ink: #2A2A28;
  --mute: #7C7B76;
  --hair: #D9D6CD;
  --mark: #C8161D;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 32px;
  --space-4: 48px;
  --space-5: 96px;
  --space-6: 160px;
  --space-7: 240px;
  --sheet: 520px;
  --ease: ease;
  --fade: 720ms var(--ease);
}

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

html {
  background: var(--ground);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--ground);
  color: var(--ink);
  font-family: "Noto Sans JP", "Helvetica Neue", sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.015em;
  text-wrap: pretty;
}

::selection {
  background: var(--ink);
  color: var(--ground);
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

/* ── Folio line, not chrome ── */

.folio-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  padding: 32px 48px 0;
  background: transparent;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.folio-nav a {
  color: var(--mute);
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--fade), border-color var(--fade);
}

.folio-nav a:hover {
  color: var(--ink);
}

.folio-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ── Desk: emptiness around a single sheet ── */

.desk {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 0;
  width: 100%;
  padding: 96px 48px 240px;
}

.spine {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 48px;
  padding-top: 48px;
  margin-right: 32px;
  flex-shrink: 0;
}

.red-mark {
  display: block;
  width: 5px;
  height: 5px;
  background: var(--mark);
  margin-bottom: 32px;
}

.spine-word {
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 13px;
  letter-spacing: 0.42em;
  color: var(--ink);
}

.spine-sku {
  margin: 32px 0 0;
  writing-mode: vertical-rl;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
}

.sheet {
  position: relative;
  width: min(var(--sheet), 100%);
  padding: 48px 0 0;
}

/* ── Print crop marks: the only ornament ── */

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

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

.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-bottom: 96px;
}

.word-latin {
  margin: 0 0 8px;
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mute);
}

h1 {
  margin: 0;
  font-size: 40px;
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1.2;
}

.lede {
  margin: 32px 0 0;
  max-width: 34ch;
  color: var(--mute);
  font-size: 16px;
  line-height: 1.8;
}

.mast-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px 32px;
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
}

.badge,
#statusBadge {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

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

/* ── Bands ── */

.band {
  padding: 96px 0 0;
  border-top: 1px solid var(--hair);
}

.band-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 32px;
}

.num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.band-name,
.section-kicker,
.section-label span {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}

.meta,
#historyLinkStatus,
#safetyIndicator {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

#historyLinkStatus {
  margin-left: auto;
}

.aside {
  margin: 0 0 32px;
  color: var(--mute);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ── Catalog: product lines, not pills ── */

.catalog {
  list-style: none;
  margin: 0 0 48px;
  padding: 0;
}

.catalog li + li {
  border-top: 1px solid var(--hair);
}

.catalog-item {
  display: flex;
  align-items: baseline;
  gap: 24px;
  width: 100%;
  padding: 16px 0;
  border: 0;
  background: none;
  text-align: left;
  transition: color var(--fade);
}

.catalog-item:hover,
.catalog-item:focus-visible {
  color: var(--ink);
  outline: none;
}

.sku {
  flex: 0 0 56px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

.catalog-name {
  font-size: 15px;
  letter-spacing: 0.02em;
}

/* ── Field ── */

.field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
}

textarea#thoughtInput {
  display: block;
  width: 100%;
  min-height: 168px;
  margin: 0;
  padding: 8px 0 16px;
  border: 0;
  border-bottom: 1px solid var(--hair);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  resize: vertical;
  outline: none;
  transition: border-color var(--fade);
}

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

textarea#thoughtInput:focus {
  border-bottom-color: var(--ink);
}

.compose-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  margin-top: 32px;
}

.hint {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

/* ── Controls ── */

.btn-primary,
.btn-ghost,
.btn-ctrl,
.btn-audio,
.drawer-head button,
.drawer-footer button {
  appearance: none;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--hair);
  border-radius: 0;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.04em;
  box-shadow: none;
  transition: color var(--fade), border-color var(--fade);
}

.btn-primary {
  border-color: var(--ink);
}

.text-btn {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  border-radius: 0;
  padding: 8px 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  box-shadow: none;
  transition: border-color var(--fade);
}

.text-btn:hover,
.text-btn:focus-visible {
  border-bottom-color: var(--ink);
  outline: none;
}

.btn-primary:hover,
.btn-ctrl:hover,
.btn-audio:hover,
.drawer-head button:hover,
.drawer-footer button:hover {
  border-color: var(--ink);
}

.btn-primary:disabled,
.btn-primary.is-busy {
  color: var(--mute);
  border-color: var(--hair);
  cursor: wait;
}

.btn-primary:focus-visible,
.btn-ctrl:focus-visible,
.filter-btn:focus-visible,
.btn-audio:focus-visible,
.catalog-item:focus-visible,
textarea:focus-visible,
.folio-nav a:focus-visible {
  outline: 1px solid var(--ink);
  outline-offset: 2px;
}

/* ── Pipeline: hidden until JS ── */

#pipelineProgress,
.pipeline-progress {
  display: none;
  align-items: center;
  gap: 16px;
  margin-top: 16px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

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

/* ── Safety: a note, not a banner ── */

#safetyBanner,
.safety-banner {
  display: none;
  padding: 16px 0;
  margin: 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  box-shadow: none;
}

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

.safety-banner.safe-badge {
  display: inline;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 400;
}

.safety-alert {
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

#safetyIndicator {
  min-height: 0;
}

/* ── The field ── */

.field-toolbar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.canvas-filters,
.canvas-controls,
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.filter-btn {
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: none;
  color: var(--mute);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.filter-btn:hover {
  color: var(--ink);
}

.filter-btn.active {
  color: var(--ink);
  background: none;
  border-bottom-color: var(--ink);
}

.btn-ctrl {
  min-width: 32px;
  padding: 8px;
  text-align: center;
}

#canvasWrapper,
.canvas-wrapper {
  position: relative;
  width: 100%;
  min-height: 420px;
  height: 48vh;
  overflow: hidden;
  border: 1px solid var(--hair);
  background: var(--ground);
  border-radius: 0;
  box-shadow: none;
}

#graphCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#canvasTooltip,
.canvas-tooltip {
  display: none;
  position: absolute;
  z-index: 20;
  max-width: 260px;
  padding: 16px;
  pointer-events: none;
  background: var(--ground);
  color: var(--ink);
  border: 1px solid var(--hair);
  border-radius: 0;
  box-shadow: none;
}

#tooltipTitle {
  font-size: 15px;
  letter-spacing: 0.01em;
}

#tooltipTitle .tooltip-mark {
  margin-right: 8px;
  color: var(--mute);
}

#tooltipMeta {
  margin-top: 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

#tooltipSnippet {
  margin-top: 8px;
  color: var(--mute);
  font-size: 15px;
}

#graphHud,
.graph-hud {
  position: absolute;
  left: 16px;
  bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  pointer-events: none;
}

/* ── Return / reverse: no cards ── */

.card {
  background: none;
  border-radius: 0;
  box-shadow: none;
}

.card-body {
  margin: 0 0 32px;
  min-height: 96px;
  color: var(--ink);
}

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

.btn-audio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-audio.loading,
.btn-audio.playing {
  border-color: var(--ink);
}

#audioBtnIcon {
  font-size: 11px;
  letter-spacing: 0;
  color: var(--mute);
}

/* ── History as a paper slip, not a drawer ── */

#historyBackdrop,
.history-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--ink) 10%, transparent);
  z-index: 90;
}

#historyBackdrop.open,
.history-backdrop.open {
  display: block;
  animation: fade-in 720ms var(--ease);
}

#historyDrawer,
.history-drawer {
  position: fixed;
  top: 12vh;
  left: 50%;
  width: min(340px, calc(100% - 48px));
  margin-left: calc(min(340px, 100% - 48px) / -2);
  height: auto;
  max-height: 76vh;
  z-index: 95;
  display: flex;
  flex-direction: column;
  background: var(--ground);
  border: 1px solid var(--hair);
  box-shadow: none;
  transform: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 800ms var(--ease), visibility 800ms var(--ease);
}

#historyDrawer.open,
.history-drawer.open {
  transform: none;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.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: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 32px 32px 16px;
}

.drawer-head {
  border-bottom: 1px solid var(--hair);
}

.slip-kicker {
  flex: 1 0 100%;
  margin: 0 0 8px;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mute);
}

.drawer-head strong {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.04em;
}

.drawer-footer {
  border-top: 1px solid var(--hair);
  padding: 16px 32px 32px;
}

.drawer-head button,
.drawer-footer button {
  border: 0;
  border-bottom: 1px solid transparent;
  padding: 8px 0;
}

.drawer-head button:hover,
.drawer-footer button:hover {
  border-bottom-color: var(--ink);
}

#drawerList,
.drawer-list {
  flex: 1;
  overflow: auto;
  padding: 0 32px;
}

.history-empty {
  padding: 48px 0;
  color: var(--mute);
  font-size: 15px;
}

.history-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--hair);
  cursor: pointer;
  transition: opacity var(--fade);
}

.history-item:hover {
  opacity: 0.65;
}

.history-item-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

.history-item-preview {
  margin-top: 8px;
  font-size: 15px;
}

.history-item-del {
  border: 0;
  background: transparent;
  color: var(--mute);
  cursor: pointer;
  padding: 0 0 0 8px;
}

/* ── Colophon ── */

.colophon {
  width: min(calc(var(--sheet) + 80px), calc(100% - 64px));
  margin: 0 auto;
  padding: 0 0 96px;
  border-top: 1px solid var(--hair);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}

.colophon p {
  margin: 16px 0 0;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 720px) {
  .desk {
    flex-direction: column;
    padding: 48px 24px 160px;
  }

  .spine {
    flex-direction: row;
    align-items: center;
    width: 100%;
    margin: 0 0 32px;
    padding: 0;
    gap: 16px;
  }

  .spine-word,
  .spine-sku {
    writing-mode: horizontal-tb;
    letter-spacing: 0.18em;
  }

  .red-mark {
    margin: 0;
  }

  .sheet {
    padding-top: 32px;
  }

  .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: 32px;
  }

  .mast {
    padding-bottom: 48px;
  }

  .band {
    padding-top: 48px;
  }

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

  .folio-nav {
    justify-content: flex-start;
    padding: 24px 24px 0;
  }

  .colophon {
    width: calc(100% - 48px);
  }
}