/* ==========================================================================
   Yiertek v4 · site
   ==========================================================================
   The 2026 printed catalogue, set for the screen. Every colour comes from
   tokens.css (no literal colour below this line). Class names are fixed by
   docs/v4-contract.md §3. Breakpoints: 600, 900, 1200, 1600 and no others.
   Only transform and opacity animate; prefers-reduced-motion drops everything
   to a 150 ms fade (end of file).
   ========================================================================== */

/* -- base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--hdr-h) + var(--s-4)); background: var(--paper); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink-2);
  font: var(--t-body-weight) var(--t-body-size)/var(--t-body-lead) var(--t-body-family);
  letter-spacing: var(--t-body-track);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, p, figure, dl, dd, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }
::selection { background: var(--copper); color: var(--on-copper); }

:focus-visible { outline: 2px solid var(--copper-line); outline-offset: 2px; }
:focus:not(:focus-visible) { outline: none; }
.band--panel :focus-visible { outline-color: var(--copper); }   /* copper-line is 2.8:1 on the panel */
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

h1, h2, h3 { color: var(--ink); text-wrap: balance; font-optical-sizing: auto; }
h1 { font: var(--t-h1-weight) var(--t-h1-size)/var(--t-h1-lead) var(--t-h1-family); letter-spacing: var(--t-h1-track); }
h2 { font: var(--t-h2-weight) var(--t-h2-size)/var(--t-h2-lead) var(--t-h2-family); letter-spacing: var(--t-h2-track); }
h3 { font: var(--t-h3-weight) var(--t-h3-size)/var(--t-h3-lead) var(--t-h3-family); letter-spacing: var(--t-h3-track); }
p { text-wrap: pretty; }

/* Links in running text: copper, underlined on hover. */
main :where(p, dd, li, figcaption) a:not([class]) {
  color: var(--copper);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  text-decoration-color: var(--rule);
}
main :where(p, dd, li, figcaption) a:not([class]):hover { color: var(--copper-deep); text-decoration-color: currentColor; }

/* -- type ------------------------------------------------------------------ */
.display {
  font: var(--t-display-weight) var(--t-display-size)/var(--t-display-lead) var(--t-display-family);
  letter-spacing: var(--t-display-track);
  color: var(--ink);
}
.lead {
  font: var(--t-lead-weight) var(--t-lead-size)/var(--t-lead-lead) var(--t-lead-family);
  letter-spacing: var(--t-lead-track);
  color: var(--ink-2);
  max-width: var(--measure);
}
.meta { font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); color: var(--ink-3); }
.eyebrow, .versal, .micro { text-transform: uppercase; font-variant-numeric: tabular-nums; }
.eyebrow {
  font: var(--t-eyebrow-weight) var(--t-eyebrow-size)/var(--t-eyebrow-lead) var(--t-eyebrow-family);
  letter-spacing: var(--t-eyebrow-track);
  color: var(--copper);
}
.versal {
  font: var(--t-versal-weight) var(--t-versal-size)/var(--t-versal-lead) var(--t-versal-family);
  letter-spacing: var(--t-versal-track);
  color: var(--ink-3);
}
:lang(zh) :is(.eyebrow, .versal, .micro) { font-size: 0.8125rem; letter-spacing: 0.08em; }
.micro {
  font: var(--t-micro-weight) var(--t-micro-size)/var(--t-micro-lead) var(--t-micro-family);
  letter-spacing: var(--t-micro-track);
  color: var(--copper);
}
.code {
  font: var(--t-code-weight) var(--t-code-size)/var(--t-code-lead) var(--t-code-family);
  letter-spacing: var(--t-code-track);
  color: var(--copper);
  white-space: nowrap;
}
.stat {
  font: var(--t-stat-weight) var(--t-stat-size)/var(--t-stat-lead) var(--t-stat-family);
  letter-spacing: var(--t-stat-track);
  color: var(--copper);
  font-variant-numeric: tabular-nums;
}

/* -- layout primitives ----------------------------------------------------- */
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.band { padding-block: var(--band-y); }
.band--panel { background: var(--paper-2); }
.band:not(.band--panel) + .band:not(.band--panel) { padding-top: 0; }
.about:has(+ .powers) { padding-bottom: var(--s-8); }
.band--flush { padding-block: 0; }

.band__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  column-gap: var(--s-6);
  align-items: end;
  margin-bottom: clamp(var(--s-7), 5vw, var(--s-9));
}
.band__head:has(> .band__more) { grid-template-columns: minmax(0, 1fr) auto; }
.band__head > * { grid-column: 1; }
.band__head > :is(h1, h2) { margin-top: var(--s-4); max-width: 26ch; }
.band__head > .lead { margin-top: var(--s-5); max-width: 52ch; }
.band__head > :first-child { margin-top: 0; }
.band__more {
  grid-column: 2;
  grid-row: 1 / span 4;
  font: var(--t-button-weight) var(--t-button-size)/1.4 var(--t-button-family);
  color: var(--copper);
  white-space: nowrap;
}
.band__more { display: inline-flex; align-items: center; gap: var(--s-2); }
.band__more:hover { color: var(--copper-deep); }
.band__more:hover .btn__arrow { transform: translateX(4px); }
@media (max-width: 599.98px) {
  .band__more { grid-column: 1; grid-row: auto; margin-top: var(--s-4); }
}

/* -- controls -------------------------------------------------------------- */
.skip {
  position: absolute;
  top: var(--s-3);
  left: var(--s-4);
  z-index: 100;
  padding: var(--s-3) var(--s-5);
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--paper);
  font: var(--t-button-weight) var(--t-button-size)/1 var(--t-button-family);
  transform: translateY(-200%);
}
.skip:focus { transform: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 48px;
  padding: 0 var(--s-5);
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: none;
  font: var(--t-button-weight) var(--t-button-size)/var(--t-button-lead) var(--t-button-family);
  letter-spacing: var(--t-button-track);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: transform var(--d-press) var(--e-out);
}
.btn:active { transform: scale(0.97); }
@media (max-width: 359.98px) { .btn { max-width: 100%; padding-inline: var(--s-4); white-space: normal; text-align: center; } }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn--primary { background: var(--copper); color: var(--on-copper); }
.btn--primary:hover { background: var(--copper-deep); }
.btn--ghost { border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--quiet { min-height: 44px; padding: 0; border: 0; color: var(--copper); }
.btn--quiet:hover { color: var(--copper-deep); }
.btn__arrow { width: 1em; height: 1em; flex: none; transition: transform var(--d-hover) var(--e-out); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 36px;
  padding: 0 var(--s-4);
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: none;
  color: var(--ink-2);
  font: 500 0.875rem/1 var(--f-label);
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--d-press) var(--e-out);
}
.chip:hover { border-color: var(--ink-3); color: var(--ink); }
@media (hover: none), (pointer: coarse) { .chip { min-height: 44px; } }
.chip[aria-disabled="true"] { opacity: 0.4; pointer-events: none; }
.chip:active { transform: scale(0.97); }
.chip[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.chip__n { font: 400 0.8rem/1 var(--f-text); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.chip[aria-pressed="true"] .chip__n { color: var(--night-ink-2); }

.tag-new {
  display: inline-block;
  padding: 0.32em 0.6em 0.26em;
  border-radius: var(--r-chip);
  background: var(--copper);
  color: var(--on-copper);
  font: var(--t-micro-weight) 0.625rem/1 var(--t-micro-family);
  letter-spacing: var(--t-micro-track);
  text-transform: uppercase;
  white-space: nowrap;
}

.swatches { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2); }
.swatch { width: 13px; height: 13px; border-radius: var(--r-pill); background: var(--swatch); box-shadow: inset 0 0 0 1px var(--swatch-ring); }
.swatches--sm { gap: 6px; }
.swatches--sm .swatch { width: 10px; height: 10px; }

.link-pdf {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font: 500 0.9rem/1.3 var(--f-label);
  color: var(--copper);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.25em;
}
.link-pdf .icon { width: 16px; height: 16px; }
.link-pdf:not(:has(svg))::before {
  content: "";
  width: 16px;
  height: 16px;
  flex: none;
  background: currentColor;
  -webkit-mask: var(--i-download) center / contain no-repeat;
  mask: var(--i-download) center / contain no-repeat;
}
.link-pdf:hover { color: var(--copper-deep); text-decoration-color: currentColor; }

.icon { width: 18px; height: 18px; flex: none; stroke-width: 1.75; }
.nbh { white-space: nowrap; }

/* Round icon buttons share one shape. */
:is(.hdr__btn, .tray__close, .tray__remove, .rail__btn, .pcard__add, .viewer__btn, .viewer__close) {
  display: grid;
  place-items: center;
  flex: none;
  padding: 0;
  border: 0;
  border-radius: var(--r-pill);
  background: none;
  cursor: pointer;
  transition: transform var(--d-press) var(--e-out);
}
:is(.hdr__btn, .tray__close, .tray__remove, .rail__btn, .pcard__add, .viewer__btn, .viewer__close) svg { width: 18px; height: 18px; }
:is(.hdr__btn, .tray__close, .tray__remove, .rail__btn, .viewer__btn, .viewer__close):active { transform: scale(0.94); }

/* -- header ---------------------------------------------------------------- */
.hdr { position: sticky; top: 0; z-index: var(--z-hdr); height: var(--hdr-h); transition: transform var(--d-ui) var(--e-out); }
.hdr::before {
  content: "";
  position: absolute;
  inset: 0;
  border-bottom: 1px solid var(--rule);
  background: var(--glass);
  -webkit-backdrop-filter: saturate(1.4) blur(20px);
  backdrop-filter: saturate(1.4) blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--d-ui) var(--e-out);
}
.hdr[data-scrolled="true"]::before { opacity: 1; }
.hdr[data-hidden="true"] { transform: translateY(-100%); }
.hdr:has([data-open="true"]), .hdr:focus-within { transform: none; }
.hdr__bar { position: relative; display: flex; align-items: center; gap: var(--s-6); height: 100%; }
.hdr__logo { display: flex; align-items: center; flex: none; color: var(--ink); }
.hdr__logo svg { width: auto; height: 28px; }
.hdr__actions { display: flex; align-items: center; gap: var(--s-1); margin-left: auto; }
.hdr__btn { width: 44px; height: 44px; color: var(--ink-2); }
.hdr__btn:hover, .hdr__lang:hover { background: var(--veil); color: var(--ink); }
.hdr__lang {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  padding: 0 var(--s-2);
  border-radius: var(--r-pill);
  font: 500 0.875rem/1 var(--f-label);
  color: var(--ink-2);
}
.hdr__tray {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  height: 44px;
  margin-left: var(--s-2);
  padding: 0 var(--s-2) 0 var(--s-4);
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: none;
  color: var(--ink);
  font: 600 0.875rem/1 var(--f-label);
  cursor: pointer;
  transition: transform var(--d-press) var(--e-out);
}
.hdr__tray:hover, .hdr__tray[aria-expanded="true"] { border-color: var(--ink); }
.hdr__tray:active { transform: scale(0.97); }
.hdr__count {
  display: grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  border-radius: var(--r-pill);
  background: var(--copper);
  color: var(--on-copper);
  font: 700 0.75rem/1 var(--f-label);
  font-variant-numeric: tabular-nums;
}
.hdr__tray[data-empty="true"] .hdr__count { background: var(--paper-2); color: var(--ink-3); }
.hdr__burger { position: relative; width: 44px; height: 44px; padding: 0; border: 0; background: none; color: var(--ink); cursor: pointer; }
.hdr__burger > * { display: none; }
.hdr__burger::before, .hdr__burger::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 13px;
  right: 13px;
  height: 1.5px;
  margin-top: -0.75px;
  border-radius: 1px;
  background: currentColor;
  transition: transform var(--d-ui) var(--e-out);
}
.hdr__burger::before { transform: translateY(-4px); }
.hdr__burger::after { transform: translateY(4px); }
.hdr__burger[aria-expanded="true"]::before { transform: rotate(45deg); }
.hdr__burger[aria-expanded="true"]::after { transform: rotate(-45deg); }

@media (max-width: 899.98px) {
  .hdr__nav {
    position: fixed;
    inset: var(--hdr-h) 0 0;
    display: flex;
    flex-direction: column;
    padding: var(--s-5) var(--gutter) var(--s-8);
    overflow-y: auto;
    background: var(--paper);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--d-ui) var(--e-out), transform var(--d-ui) var(--e-out), visibility 0s linear var(--d-ui);
  }
  .hdr__nav[data-open="true"] { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
  .hdr__link {
    padding-block: var(--s-4);
    border-bottom: 1px solid var(--rule);
    font: 500 1.375rem/1.2 var(--f-label);
    letter-spacing: -0.005em;
    color: var(--ink);
  }
  .hdr__link[aria-current="page"] { color: var(--copper); }
  .no-js .hdr__burger { display: none; }
}
@media (max-width: 599.98px) {
  .hdr__bar { gap: var(--s-3); }
  .hdr__logo svg { height: 24px; }
  .hdr__actions { gap: 0; }
  .hdr__tray { margin-left: var(--s-1); padding-left: var(--s-3); }
}
@media (max-width: 359.98px) {
  .hdr__bar { gap: var(--s-2); }
  .hdr__logo svg { height: 20px; }
  .hdr__tray { gap: 0; padding: 0 var(--s-2); font-size: 0; }   /* the word stays in the accessible name */
  .hdr__tray-word { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .hdr__count { font-size: 0.75rem; }
}
@media (min-width: 900px) {
  .hdr__nav { display: flex; gap: var(--s-6); margin-inline: auto; }
  .hdr__link { position: relative; padding-block: var(--s-2); font: 500 0.9375rem/1 var(--f-label); letter-spacing: 0.005em; color: var(--ink-2); }
  .hdr__link::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 1px;
    background: var(--copper-line);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--d-hover) var(--e-out);
  }
  .hdr__link:hover, .hdr__link[aria-current="page"] { color: var(--ink); }
  .hdr__link:hover::after, .hdr__link[aria-current="page"]::after { transform: scaleX(1); }
  .hdr__burger { display: none; }
}

/* -- tray, scrim, toast ----------------------------------------------------- */
.tray {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-tray);
  display: flex;
  flex-direction: column;
  width: min(440px, 100%);
  background: var(--paper);
  box-shadow: var(--shadow-overlay);
  transform: translateX(40px);
  opacity: 0;
  transition: transform var(--d-ui) var(--e-out), opacity var(--d-ui) var(--e-out);
}
/* site.js removes [hidden], sets [data-open] on the next frame, and restores
   [hidden] only after the transition: the closed state is the resting one. */
.tray[data-open="true"] { transform: none; opacity: 1; }
.tray__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-4) var(--s-4) var(--s-4) var(--s-6);
  border-bottom: 1px solid var(--rule);
}
.tray__title { font: 400 1.5rem/1.2 var(--f-display); letter-spacing: -0.01em; }
.tray__close, .tray__remove { width: 44px; height: 44px; color: var(--ink-2); }
.tray__close:hover, .tray__remove:hover { background: var(--veil); color: var(--ink); }
.tray__list { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: var(--s-2) var(--s-6); }
.tray__list:empty { display: none; }
.tray__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--s-4);
  padding-block: var(--s-4);
  border-bottom: 1px solid var(--rule);
}
.tray__img { width: 56px; height: 70px; object-fit: cover; background: var(--paper-2); }
.tray__meta { display: grid; gap: 2px; min-width: 0; }
.tray__name {
  overflow: hidden;
  font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family);
  color: var(--ink-2);
  white-space: nowrap;
  text-overflow: ellipsis;
}
.tray__empty {
  flex: 1;
  padding: var(--s-6);
  font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family);
  color: var(--ink-3);
}
.tray__foot { padding: var(--s-5) var(--s-6); border-top: 1px solid var(--rule); }
.tray__foot .btn { width: 100%; }

.scrim { position: fixed; inset: 0; z-index: var(--z-scrim); background: var(--scrim); opacity: 0; transition: opacity var(--d-ui) var(--e-out); }
.scrim[data-open="true"] { opacity: 1; }

.toast {
  position: fixed;
  right: 0;
  bottom: var(--s-6);
  left: 0;
  z-index: var(--z-toast);
  display: flex;
  align-items: center;
  gap: var(--s-4);
  width: max-content;
  max-width: calc(100% - 2 * var(--gutter));
  margin-inline: auto;
  padding: var(--s-2) var(--s-2) var(--s-2) var(--s-5);
  border-radius: var(--r-pill);
  background: var(--night);
  color: var(--night-ink);
  font: 500 0.9rem/1.3 var(--f-text);
  opacity: 0;
  transform: translateY(12px);
  transition: transform var(--d-ui) var(--e-out), opacity var(--d-ui) var(--e-out);
}
.toast[data-open="true"] { opacity: 1; transform: none; }
body:has(.tray[data-open="true"]) .toast { bottom: calc(var(--s-6) + 88px); }
.toast__text { min-width: 0; }
.toast__undo {
  flex: none;
  min-height: 36px;
  padding: 0 var(--s-4);
  border: 0;
  border-radius: var(--r-pill);
  background: var(--night-wash);
  color: var(--night-ink);
  font: 600 0.85rem/1 var(--f-label);
  cursor: pointer;
}
.toast__undo:hover { background: var(--night-rule); }

/* -- palette ---------------------------------------------------------------- */
.palette {
  width: min(640px, calc(100% - 2 * var(--s-4)));
  max-width: none;
  max-height: min(560px, calc(100dvh - 2 * var(--s-8)));
  margin: 12vh auto auto;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: var(--r-card);
  background: var(--paper);
  color: var(--ink-2);
  box-shadow: var(--shadow-overlay);
  opacity: 0;
  transform: translateY(-8px) scale(0.98);
  transition: opacity var(--d-ui) var(--e-out), transform var(--d-ui) var(--e-out),
    overlay var(--d-ui) allow-discrete, display var(--d-ui) allow-discrete;
}
.palette[open] { display: flex; flex-direction: column; opacity: 1; transform: none; }
@starting-style { .palette[open] { opacity: 0; transform: translateY(-8px) scale(0.98); } }
.palette::backdrop {
  background: var(--scrim);
  opacity: 0;
  transition: opacity var(--d-ui) var(--e-out), overlay var(--d-ui) allow-discrete, display var(--d-ui) allow-discrete;
}
.palette[open]::backdrop { opacity: 1; }
@starting-style { .palette[open]::backdrop { opacity: 0; } }
.palette__form { flex: none; border-bottom: 1px solid var(--rule); }
.palette__form:focus-within { border-bottom-color: var(--copper-line); }
.palette__input {
  width: 100%;
  height: 64px;
  padding: 0 var(--s-6);
  border: 0;
  background: none;
  color: var(--ink);
  font: 400 1.25rem/1 var(--f-text);
  -webkit-appearance: none;
  appearance: none;
}
.palette__input:focus { outline: none; }
.palette__input::placeholder { color: var(--ink-3); }
.palette__input::-webkit-search-cancel-button { -webkit-appearance: none; }
.palette__list { overflow-y: auto; overscroll-behavior: contain; padding: var(--s-2); }
.palette__list:empty { display: none; }
.palette__link {
  display: grid;
  grid-template-columns: 44px auto minmax(0, 1fr);
  align-items: center;
  gap: 0 var(--s-4);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-card);
}
.palette__link:hover, .palette__item[aria-selected="true"] .palette__link { background: var(--paper-2); }
.palette__item[aria-selected="true"] .palette__link { box-shadow: inset 3px 0 0 var(--copper); }
.palette__img { grid-row: span 2; width: 44px; height: 55px; object-fit: cover; background: var(--paper-2); }
.palette__meta { grid-column: 2 / -1; margin-top: -2px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.palette__status { flex: none; padding: var(--s-3) var(--s-6); border-top: 1px solid var(--rule); }
.palette__status:empty { display: none; }
.palette__name {
  overflow: hidden;
  font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family);
  color: var(--ink-2);
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* -- cover and opening (the book's front cover and its dividers) ----------- */
.cover, .opening { container-type: inline-size; display: grid; grid-template-columns: minmax(0, 1fr); }
.cover__text, .opening__text { padding: var(--s-8) var(--gutter); }
.cover__photo, .opening__photo { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-2); }
.cover__photo img, .opening__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cover__photo img { object-position: 70% 100%; }
.cover .display { margin-top: var(--s-5); }
.cover__line { display: block; }
.cover .lead { margin-top: var(--s-6); max-width: 34ch; }
.cover__ctas { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-7); }
.opening h1 { margin-top: var(--s-5); max-width: 12ch; }
.opening .lead { margin-top: var(--s-5); max-width: 36ch; }
.opening .meta { margin-top: var(--s-5); }
@media (max-width: 899.98px) { .opening__photo { aspect-ratio: 4 / 3; } }
@media (min-width: 900px) {
  /* 42% of the viewport up to --max; past it the text column stops growing
     and the photograph takes the rest, so the text keeps the wrap's left edge. */
  .cover, .opening { grid-template-columns: max(42%, 50% - var(--max) * 0.08) minmax(0, 1fr); }
  .cover { min-height: min(calc(100svh - var(--hdr-h)), 900px); }
  .opening { min-height: min(calc(100svh - var(--hdr-h)), 760px); }
  .cover__text, .opening__text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: var(--s-9);
    padding-inline: max(var(--gutter), calc(50cqw - var(--max) / 2 + var(--gutter))) var(--s-7);
  }
  .cover__photo, .opening__photo { aspect-ratio: auto; }
  /* The two cover lines must stay two: "Audio Factory" measures 6.1em as set, and the
     column's measure is 38cqw − 48px, capped at 493px once past --max. */
  .cover .display { font-size: min(var(--t-display-size), calc((min(38cqw, 541px) - 48px) / 6.3)); }
}

/* -- about and figures ----------------------------------------------------- */
.about__grid { display: grid; gap: var(--s-8); }
.about__intro h2 { margin-top: var(--s-4); max-width: 16ch; }
.about__intro .lead { margin-top: var(--s-5); max-width: 42ch; }
.about__facts { display: grid; gap: var(--s-6); margin-top: var(--s-8); }
.about__fact { display: grid; gap: var(--s-2); }
.about__fact .stat { font-size: var(--t-h3-size); }
.about__fact dd:not(.stat) { font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); color: var(--ink-2); }
.pillars { margin-top: var(--s-5); }
.pillar { padding-block: var(--s-5); border-top: 1px solid var(--rule); }
.pillar:first-child { padding-top: 0; border-top: 0; }
.pillar__title { font: 600 1.0625rem/1.3 var(--f-label); letter-spacing: 0.005em; color: var(--copper); }
.pillar p { margin-top: var(--s-2); max-width: 46ch; }
@media (min-width: 900px) {
  .about__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
  .about__intro { padding-right: var(--s-8); border-right: 1px solid var(--rule); }
  .about__pillars { padding-left: var(--s-8); }
}

.figures { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6) var(--s-5); margin-top: var(--s-9); }
/* Five figures, every row full: 1 + 2 + 2 on phones, 3 + 2 on a 6-track grid
   between 600 and 1200, five across above. auto-fit left a 1/4 or 2/3 row. */
.figure:first-child { grid-column: 1 / -1; }
@media (min-width: 600px) {
  .figures { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .figure, .figure:first-child { grid-column: span 2; }
  .figure:nth-child(n + 4) { grid-column: span 3; }
}
@media (min-width: 1200px) {
  .figures { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .figure, .figure:first-child, .figure:nth-child(n + 4) { grid-column: auto; }
}
.figure { padding-top: var(--s-4); border-top: 1px solid var(--rule); }
.figure dt { margin-bottom: var(--s-4); }
.figure dd { font: var(--t-meta-weight) var(--t-meta-size)/1.55 var(--t-meta-family); color: var(--ink-2); }
.figure__num {
  display: block;
  margin-bottom: var(--s-2);
  font: 600 clamp(1.75rem, 1.5rem + 1vw, 2.5rem)/1 var(--t-stat-family);
  letter-spacing: var(--t-stat-track);
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* -- powers strip (version A: static) --------------------------------------- */
.powers__frames {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: var(--s-3);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  padding-inline: var(--gutter);
  scrollbar-width: none;
}
.powers__frames::-webkit-scrollbar { display: none; }
.powers__frame { scroll-snap-align: start; }
.powers__img, .powers__frame img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: var(--paper-2); }
.powers__cap {
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  margin-top: var(--s-3);
  font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family);
  color: var(--ink-2);
}
.powers__cap .versal { color: var(--copper); }
@media (min-width: 600px) { .powers__frames { grid-auto-columns: 44%; } }
@media (min-width: 900px) {
  .powers__frames {
    grid-auto-flow: row;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: var(--max);
    margin-inline: auto;
    overflow: visible;
  }
}

/* -- cooperative brands ---------------------------------------------------- */
.brands__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-2) var(--s-4); }
.brands__item { display: grid; place-items: center; min-height: 88px; }
.brands__logo { max-width: 100%; height: auto; zoom: 0.75; filter: brightness(0); opacity: 0.55; transition: opacity var(--d-hover) var(--e-out); }
.brands__item:hover .brands__logo { opacity: 1; }
.brands__markets {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-2) var(--s-5);
  margin-top: var(--s-8);
  padding-top: var(--s-5);
  border-top: 1px solid var(--rule);
  font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family);
  color: var(--ink-2);
}
@media (min-width: 900px) {
  .brands__grid { grid-template-columns: repeat(5, minmax(0, 1fr)); column-gap: 0; }
  .brands__item { min-height: 112px; }
  .brands__logo { zoom: 0.9; }
}
@media (min-width: 1200px) { .brands__logo { zoom: 1; } }

/* -- doors (the five lines, bento) ------------------------------------------ */
.doors { display: grid; gap: var(--s-7) var(--s-5); }
.door__link { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-content: start; column-gap: var(--s-4); height: 100%; }
.door__media { position: relative; grid-column: 1 / -1; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-2); }
.door__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--d-hover) var(--e-out); }
.door__num { grid-column: 1; margin-top: var(--s-4); }
.door__title { grid-column: 1; align-self: baseline; margin-top: var(--s-1); font: var(--t-h3-weight) var(--t-h3-size)/var(--t-h3-lead) var(--t-h3-family); letter-spacing: var(--t-h3-track); color: var(--ink); }
.door__count { grid-column: 2; grid-row: 3; align-self: baseline; white-space: nowrap; }
.door__blurb { grid-column: 1 / -1; margin-top: var(--s-2); max-width: 46ch; }
.door__link:is(:hover, :focus-visible) .door__img { transform: scale(1.02); }
.door__link:is(:hover, :focus-visible) .door__title { color: var(--copper); }
@media (min-width: 600px) {
  .doors { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .door--01 { grid-column: 1 / -1; }
}
@media (min-width: 900px) {
  .doors { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .door { grid-column: span 6; }
  .door--01 { grid-column: 1 / span 8; grid-row: span 2; }
  .door--02, .door--03 { grid-column: span 4; }
  .door--01 .door__link { grid-template-rows: minmax(0, 1fr) auto auto auto; }
  .door--01 .door__media { aspect-ratio: auto; min-height: 360px; }
  .door--01 .door__title { font-size: calc(var(--t-h3-size) * 1.25); }
  .door--04 .door__media, .door--05 .door__media { aspect-ratio: 16 / 9; }
}

/* -- rail ------------------------------------------------------------------ */
.rail__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: var(--s-5);
  margin-inline: calc(-1 * var(--gutter));
  padding-inline: var(--gutter);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  scrollbar-width: none;
}
.rail__track::-webkit-scrollbar { display: none; }
.rail__item { scroll-snap-align: start; }
.rail__ctrl { display: flex; justify-content: flex-end; gap: var(--s-2); margin-top: var(--s-6); }
.rail__btn { width: 44px; height: 44px; border: 1px solid var(--rule); color: var(--ink); }
.rail__btn:hover { border-color: var(--ink); }
.rail__btn:disabled { border-color: var(--rule); opacity: 0.35; cursor: default; transform: none; }
@media (min-width: 600px) { .rail__track { grid-auto-columns: 44%; } }
@media (min-width: 900px) { .rail__track { grid-auto-columns: calc((100% - 2 * var(--s-5)) / 3); } }
@media (min-width: 1200px) { .rail__track { grid-auto-columns: calc((100% - 3 * var(--s-5)) / 4); } }
@media (hover: none) and (pointer: coarse) { .rail__ctrl { display: none; } }
.rail[data-overflow="false"] .rail__ctrl { display: none; }

/* -- product card ---------------------------------------------------------- */
.related .band__head h2 { font: var(--t-h3-weight) var(--t-h3-size)/var(--t-h3-lead) var(--t-h3-family); letter-spacing: var(--t-h3-track); }
.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: var(--s-8) var(--s-5); }
@media (max-width: 599.98px) {
  .pgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-6) var(--s-3); }
  .pgrid .pcard__tagline { display: none; }
  .pgrid .pcard__name { font-size: 1.0625rem; }
  .pgrid .pcard__add { top: var(--s-2); right: var(--s-2); }
}
.pcard { position: relative; }
.pcard__link { display: block; }
.pcard__media { position: relative; display: block; aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-2); }
.pcard__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--d-hover) var(--e-out); }
.pcard__link:is(:hover, :focus-visible) .pcard__img { transform: scale(1.02); }
.pcard__body { display: flex; flex-direction: column; gap: var(--s-1); padding-top: var(--s-4); }
.pcard__code { display: flex; align-items: center; gap: var(--s-2); }
.pcard__name { font: 400 1.25rem/1.25 var(--f-display); letter-spacing: -0.005em; color: var(--ink); text-wrap: balance; }
.pcard__tagline { display: block; }
.pcard .swatches { margin-top: var(--s-2); }
.pcard__add {
  position: absolute;
  top: var(--s-3);
  right: var(--s-3);
  width: 44px;
  height: 44px;
  background: var(--paper);
  color: var(--ink);
  transition: opacity var(--d-hover) var(--e-out), transform var(--d-hover) var(--e-out);
}
.pcard__add:hover { background: var(--copper); color: var(--on-copper); }
.pcard .pcard__add:active { transform: scale(0.92); }
@media (hover: hover) and (pointer: fine) {
  .pcard__add { opacity: 0; transform: scale(0.9); }
  .pcard:hover .pcard__add, .pcard:focus-within .pcard__add { opacity: 1; transform: none; }
  .pcard .pcard__add:active { transform: scale(0.92); }
}
.pcard__add[data-in-tray="true"] { background: var(--copper); color: var(--on-copper); opacity: 1; transform: none; }
.btn--primary[data-in-tray="true"] { background: var(--copper-deep); }
.no-js .pcard__add, .no-js .rail__ctrl, .no-js .hdr__tray, .no-js [data-palette-open] { display: none; }

/* -- certifications -------------------------------------------------------- */
.mosaic { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 3px; }
.mosaic__img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: var(--paper-2); }
.mosaic__caption { grid-column: 1 / -1; margin-top: var(--s-3); }
@media (min-width: 600px) {
  /* The book's p3 mosaic: frames of 1276·803·945 over 960·1200·864 units, both
     rows 3024 wide, so five columns on the union of their seams reproduce it.
     Each frame carries the book's own ratio; the photograph is cropped into it. */
  .mosaic { grid-template-columns: 960fr 316fr 803fr 81fr 864fr; }
  .mosaic__img--1 { grid-area: 1 / 1 / 2 / 3; aspect-ratio: 1276 / 614; }
  .mosaic__img--2 { grid-area: 1 / 3 / 2 / 4; aspect-ratio: 803 / 614; }
  .mosaic__img--3 { grid-area: 1 / 4 / 2 / 6; aspect-ratio: 945 / 614; }
  .mosaic__img--4 { grid-area: 2 / 1 / 3 / 2; aspect-ratio: 960 / 424; }
  .mosaic__img--5 { grid-area: 2 / 2 / 3 / 5; aspect-ratio: 1200 / 424; }
  .mosaic__img--6 { grid-area: 2 / 5 / 3 / 6; aspect-ratio: 864 / 424; }
  .mosaic__caption { grid-row: 3; }
}
.marks {
  display: grid;
  /* Two across below 900: 4 product marks fill two rows, the hairline and the
     audits' label take full rows, the two audits fill the last one. */
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-6) var(--s-4);
  margin-top: var(--s-8);
  padding-block: var(--s-7);
  border-block: 1px solid var(--rule);
}
.mark { display: grid; grid-template-rows: calc(var(--mark-h) * 1.4) auto; justify-items: center; align-items: center; gap: var(--s-3); text-align: center; }
.mark__img { width: auto; max-width: 100%; height: calc(var(--mark-h) * var(--k, 1)); }
.mark--ce { --k: 1.2; }
.mark--fcc { --k: 1.1; }
.mark--rohs { --k: 0.72; }
.mark--reach { --k: 0.72; }
.mark--bsci { --k: 1.3; }
.mark--iso9001 { --k: 0.72; }
.certs__foot { margin-top: var(--s-5); }
.certs__foot > span { white-space: nowrap; }
.certs__foot .versal { margin-right: var(--s-3); }
.certs__sep { margin-inline: var(--s-2); color: var(--ink-3); }
.marks__sep { grid-column: 1 / -1; height: 1px; background: var(--rule); }
.marks__label { grid-column: 1 / -1; justify-self: start; }
@media (min-width: 900px) {
  .marks { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  /* Four product marks | hairline | two factory audits, the audits' label above them. */
  .marks:has(.marks__sep) { grid-template-columns: repeat(4, minmax(0, 1fr)) 1px repeat(2, minmax(0, 1fr)); grid-auto-flow: dense; }
  .marks:has(.marks__sep) > .mark { grid-row: 2; }
  .marks__sep { grid-column: 5; grid-row: 1 / 3; width: 1px; height: auto; }
  .marks__label { grid-column: 6 / 8; grid-row: 1; justify-self: center; }
}

/* -- catalogue band: sleeve and record --------------------------------------- */
.catalogue__grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s-8); align-items: center; }
.catalogue__art { position: relative; aspect-ratio: 100 / 62; }
.sleeve {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 62%;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--paper-2);
  outline: 1px solid var(--rule);
  outline-offset: -1px;
}
.sleeve__img { width: 100%; height: 100%; object-fit: cover; object-position: 0 50%; }
/* The record rests half out of the sleeve: 95% of the sleeve's size, centred
   on its right edge. Positioned without transform so motion.js owns it. */
.record { position: absolute; inset-block: 0; left: 32.5%; width: 59%; margin-block: auto; aspect-ratio: 1; }
.record__svg { width: 100%; height: 100%; }
.record__disc { fill: var(--ink); }
.record__grooves { fill: none; stroke: var(--night-ink); }
.record__label { fill: var(--copper-line); }
.record__ring { fill: none; stroke: var(--on-copper); }
.record__logo { fill: var(--on-copper); }
.record__hole { fill: var(--paper); }
.catalogue__text h2 { margin-top: var(--s-4); max-width: 14ch; }
.catalogue__text .meta { margin-top: var(--s-4); }
.catalogue__ctas { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3) var(--s-6); margin-top: var(--s-7); }
@media (min-width: 900px) { .catalogue__grid { grid-template-columns: 7fr 5fr; gap: var(--s-9); } }

/* -- enquiry form ---------------------------------------------------------- */
.enquiry__grid { display: grid; gap: var(--s-7); }
.enquiry .band__head { margin-bottom: 0; }
.form { display: grid; gap: var(--s-5) var(--s-4); }
.field { display: flex; flex-direction: column; gap: var(--s-2); min-width: 0; }
.field__label { font: 600 0.8125rem/1.3 var(--f-label); letter-spacing: 0.01em; color: var(--ink-2); }
.field__input {
  width: 100%;
  min-height: 52px;
  padding: var(--s-3) var(--s-4);
  border: 1px solid var(--field-line);
  border-radius: var(--r-card);
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.4 var(--f-text);
  -webkit-appearance: none;
  appearance: none;
}
.field__input::placeholder { color: var(--ink-3); }
.field__input:hover { border-color: var(--ink-2); }
.field__input:focus { border-color: var(--copper); }
.field__input[aria-invalid="true"] { border-color: var(--danger); }
textarea.field__input { min-height: 168px; resize: vertical; }
select.field__input { padding-right: var(--s-8); background: var(--paper) var(--chevron) no-repeat right var(--s-4) center; }
.field__opt { margin-left: var(--s-1); font-weight: 400; color: var(--ink-3); }
.field__error { font: 500 0.875rem/1.4 var(--f-text); color: var(--danger); }
.field__hint { align-self: flex-start; color: var(--copper); }
.field__hint:hover { color: var(--copper-deep); text-decoration: underline; text-underline-offset: 0.2em; }
.models { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.models:empty { display: none; }
.models__chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  min-height: 36px;
  padding: 0 var(--s-1) 0 var(--s-4);
  border: 1px solid var(--rule);
  border-radius: var(--r-pill);
  background: var(--paper);
}
.models__chip button {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  border-radius: var(--r-pill);
  background: none;
  color: var(--ink-3);
  font: 400 1.125rem/1 var(--f-text);
  cursor: pointer;
}
.models__chip button:hover { background: var(--veil); color: var(--ink); }
.hp { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); opacity: 0; }
.form > .btn { justify-self: start; margin-top: var(--s-2); }
.form__status { font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); color: var(--ink-2); }
.form__status:empty { display: none; }
@media (min-width: 600px) {
  .form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field--wide, .field--models, .form__status, .form > .btn { grid-column: 1 / -1; }
}
@media (min-width: 900px) {
  .enquiry__grid { grid-template-columns: 5fr 7fr; gap: var(--s-9); align-items: start; }
  .enquiry .band__head { position: sticky; top: calc(var(--hdr-h) + var(--s-6)); }
}

/* -- footer (night: the book's divider ink) --------------------------------- */
.ftr { padding-block: var(--s-9) var(--s-6); background: var(--night); color: var(--night-ink-2); }
.ftr__grid { display: grid; gap: var(--s-7) var(--s-6); }
.ftr__brand svg, .ftr__brand img { width: auto; height: 32px; color: var(--night-copper); }
.ftr__motto { margin-top: var(--s-5); font: 400 1.5rem/1.25 var(--f-display); letter-spacing: -0.01em; color: var(--night-ink); }
.ftr__col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--s-2);
  font: var(--t-meta-weight) 0.9375rem/1.55 var(--f-text);
}
.ftr .versal { margin-bottom: var(--s-2); color: var(--night-ink-2); }
.ftr a { color: var(--night-ink); }
.ftr a:hover { text-decoration: underline; text-decoration-color: var(--night-copper); text-underline-offset: 0.25em; }
.ftr .meta { color: var(--night-ink-2); }
.ftr__person, .ftr__office { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; margin-bottom: var(--s-4); }
.ftr__person > *, .ftr__office > * { display: block; }
.ftr__name { font-weight: 600; color: var(--night-ink); }
.ftr__person a, .ftr__office a { font-size: var(--t-meta-size); color: var(--night-ink-2); }
.ftr__address, .ftr__hours { font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); font-style: normal; color: var(--night-ink-2); }
.ftr__hours { margin-top: var(--s-2); }
.ftr__legal { margin-top: var(--s-8); }
.ftr__legal::before { content: ""; display: block; height: 1px; margin-bottom: var(--s-5); background: var(--night-rule); }
@media (min-width: 600px) { .ftr__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1200px) { .ftr__grid { grid-template-columns: 1.3fr 1fr 1fr 1.5fr; } }

/* -- products index -------------------------------------------------------- */
.filters { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-4); margin-bottom: var(--s-8); }
.filters__chips { display: flex; flex-wrap: wrap; gap: var(--s-2); }
html:not(.no-js) .psearch { display: none; }
.chip[data-filter^="sec-"] + .chip[data-filter^="f-"] { margin-left: var(--s-4); }
.psearch { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-2) var(--s-3); max-width: 560px; margin-bottom: var(--s-7); }
.psearch .field__label { grid-column: 1 / -1; }
.psearch .btn { min-height: 52px; }
.psearch__results:empty { display: none; }
.filters__query { margin-bottom: var(--s-5); }
.filters__count { font-variant-numeric: tabular-nums; white-space: nowrap; }
.pgroups { display: grid; gap: var(--s-9); }
.pgroup__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s-2) var(--s-4);
  margin-bottom: var(--s-6);
  padding-top: var(--s-5);
  border-top: 1px solid var(--rule);
  font: var(--t-h3-weight) var(--t-h3-size)/var(--t-h3-lead) var(--t-h3-family);
  letter-spacing: var(--t-h3-track);
}
.pgroup__title .meta { margin-left: auto; letter-spacing: 0; }
.filters__empty {
  padding-block: var(--s-9);
  text-align: center;
  font: var(--t-lead-weight) var(--t-lead-size)/var(--t-lead-lead) var(--t-lead-family);
  color: var(--ink-2);
}
.filters__empty .btn { margin-left: var(--s-2); }
@media (max-width: 599.98px) {
  .filters__chips {
    flex-wrap: nowrap;
    width: calc(100% + 2 * var(--gutter));
    margin-inline: calc(-1 * var(--gutter));
    padding-inline: var(--gutter);
    overflow-x: auto;
    scrollbar-width: none;
  }
  .filters__chips::-webkit-scrollbar { display: none; }
}

/* -- product page ---------------------------------------------------------- */
.product__grid { container-type: inline-size; display: grid; grid-template-columns: minmax(0, 1fr); }
.product__media { display: grid; gap: 2px; }
.product__photo { position: relative; display: flex; flex-direction: column; gap: 2px; aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-2); }
.product__photo img { flex: 1; width: 100%; height: 100%; min-height: 0; object-fit: cover; }
.product__panel { padding: var(--s-7) var(--gutter) var(--s-9); }
@media (max-width: 899.98px) {
  /* On a phone the photograph runs at its own ratio (nothing cropped) and the
     buttons come before the long lists. */
  .product__photo { aspect-ratio: auto; }
  .product__photo img { flex: none; height: auto; }
  .product__panel { display: flex; flex-direction: column; }
  .product__ctas { order: 1; }
  .product__panel > :is(.features, .packing, .product__power, .product__note) { order: 2; }
}
.crumbs { display: flex; flex-wrap: wrap; gap: var(--s-2); font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); color: var(--ink-3); }
.crumbs a:hover { color: var(--copper); }
.crumbs span { color: var(--ink-3); }
.product__code { display: flex; align-items: center; gap: var(--s-3); margin-top: var(--s-7); }
.product__code .code, .product__h1code { font-size: 1.2rem; }
.product__code:empty { display: none; }
.product__h1code { display: block; margin-bottom: var(--s-3); }
.product__h1name { display: block; }
.product__name { margin-top: var(--s-3); font: var(--t-h2-weight) var(--t-h2-size)/var(--t-h2-lead) var(--t-h2-family); letter-spacing: var(--t-h2-track); max-width: 16ch; }
.product__tagline { margin-top: var(--s-4); }
.product__finishes { display: flex; align-items: center; gap: var(--s-4); margin-top: var(--s-6); }
.features { display: grid; gap: var(--s-3); margin-top: var(--s-7); }
.feature { display: grid; grid-template-columns: 20px minmax(0, 1fr); align-items: start; gap: var(--s-3); }
.feature__icon { width: 20px; height: 20px; margin-top: 0.15em; color: var(--copper-line); stroke-width: 1.5; }
.feature__text { color: var(--ink-2); }
.packing { display: grid; grid-template-columns: max-content minmax(0, 1fr); column-gap: var(--s-5); margin-top: var(--s-7); border-top: 1px solid var(--rule); }
.packing__row { display: grid; grid-column: 1 / -1; grid-template-columns: subgrid; align-items: baseline; padding-block: var(--s-3); border-bottom: 1px solid var(--rule); }
.packing dt { white-space: nowrap; }
.packing dd { font: var(--t-meta-weight) var(--t-meta-size)/var(--t-meta-lead) var(--t-meta-family); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.product__power { margin-top: var(--s-4); }
.product__ctas { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3); margin-top: var(--s-7); }
.product__ctas .link-pdf { flex-basis: 100%; margin-top: var(--s-3); }
.product__note { margin-top: var(--s-6); padding-top: var(--s-4); border-top: 1px solid var(--rule); max-width: 52ch; }
@media (min-width: 900px) {
  .product__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .product__media { align-self: stretch; align-content: start; }
  .product__photo { position: sticky; top: var(--hdr-h); height: calc(100svh - var(--hdr-h)); aspect-ratio: auto; }
  .product__media:has(> .product__photo + .product__photo) .product__photo { position: relative; top: auto; height: auto; aspect-ratio: 4 / 3; }
  .product__panel { padding-block: var(--s-8) var(--s-9); padding-inline: var(--s-7) max(var(--gutter), calc(50cqw - var(--max) / 2 + var(--gutter))); }
}
@media (min-width: 1200px) {
  .product__grid { grid-template-columns: 58fr 42fr; }
  .product__panel { padding-left: var(--s-8); }
}
/* Wide photographs: the book's band variant (spread-06). The photograph is a
   full-width band at its own ratio; below it the panel runs in two columns,
   identity and buttons on the left, the feature list on the right. */
.product--wide .product__grid { grid-template-columns: minmax(0, 1fr); }
.product--wide .product__photo { position: relative; top: auto; height: auto; aspect-ratio: auto; }
.product--wide .product__photo img { flex: none; height: auto; }
@media (min-width: 900px) {
  .product--wide .product__panel {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-rows: repeat(9, auto) 1fr;
    column-gap: var(--s-9);
    align-items: start;
    padding-inline: max(var(--gutter), calc(50cqw - var(--max) / 2 + var(--gutter)));
  }
  .product--wide .product__panel > * { grid-column: 1; }
  .product--wide .product__panel > .features { grid-column: 2; grid-row: 1 / -1; margin-top: 0; columns: 2; column-gap: var(--s-7); display: block; }
  .product--wide .feature { break-inside: avoid; margin-bottom: var(--s-3); }
  .product--wide .product__ctas { order: 1; }
  .product--wide .product__panel > :is(.packing, .product__power, .product__note) { order: 2; }
}

.scenes { display: grid; gap: 2px; }
.scene img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; background: var(--paper-2); }
.scene:only-child img { aspect-ratio: 16 / 9; }
.scene__cap { padding: var(--s-3) var(--gutter) 0; }
@media (min-width: 900px) { .scenes { grid-template-columns: repeat(auto-fit, minmax(min(100%, 560px), 1fr)); } }

/* -- catalogue page: spreads and viewer ------------------------------------- */
.spreads { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: var(--s-7) var(--s-5); }
.spread__link { display: block; }
.spread__img {
  width: 100%;
  aspect-ratio: 1600 / 566;
  object-fit: contain;          /* spreads fill it; the single-page covers sit centred */
  background: var(--paper-2);
  outline: 1px solid var(--rule);
  outline-offset: -1px;
  transition: transform var(--d-hover) var(--e-out);
}
.spread__link:hover .spread__img { transform: scale(1.02); }
.spread__label { display: block; margin-top: var(--s-3); }

.viewer {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  margin: 0;
  padding: var(--s-9) var(--s-4) var(--s-6);
  overflow: hidden;
  border: 0;
  background: var(--night);
  color: var(--night-ink);
  opacity: 0;
  transition: opacity var(--d-ui) var(--e-out), overlay var(--d-ui) allow-discrete, display var(--d-ui) allow-discrete;
}
.viewer[open] { display: grid; grid-template-rows: minmax(0, 1fr) auto; place-items: center; gap: var(--s-4); opacity: 1; }
@starting-style { .viewer[open] { opacity: 0; } }
.viewer::backdrop { background: var(--night); }
.viewer[data-loading] .viewer__img { opacity: 0.35; }
.viewer__img { transition: opacity var(--d-ui) var(--e-out); }
.viewer__img { width: auto; max-width: 100%; height: auto; max-height: 100%; object-fit: contain; }
.viewer__btn, .viewer__close { position: absolute; width: 48px; height: 48px; background: var(--night-wash); color: var(--night-ink); }
.viewer__btn:hover, .viewer__close:hover { background: var(--night-rule); }
.viewer__prev { top: 50%; left: var(--s-4); margin-top: -24px; }
.viewer__next { top: 50%; right: var(--s-4); margin-top: -24px; }
.viewer__close { top: var(--s-4); right: var(--s-4); }
.viewer .meta { color: var(--night-ink-2); }
@media (max-width: 899.98px) {
  .viewer { padding-bottom: var(--s-10); }
  .viewer__prev, .viewer__next { top: auto; bottom: var(--s-5); margin-top: 0; }
}
@media (min-width: 900px) { .viewer { padding-inline: var(--s-10); } .viewer__prev { left: var(--s-6); } .viewer__next { right: var(--s-6); } }

/* -- capabilities, contact, quality ---------------------------------------- */
.pillars--long { display: grid; gap: var(--s-7) var(--s-8); margin-top: 0; }
.pillars--long .pillar, .pillars--long .pillar:first-child { padding: var(--s-5) 0 0; border-top: 1px solid var(--rule); }
.pillars--long .pillar__title { font-size: 1.25rem; }
.pillars--long .pillar p { margin-top: var(--s-3); }
.pillar__more { max-width: 52ch; }
.ctas { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.cta .band__head { margin-bottom: var(--s-7); }
.people { display: grid; gap: var(--s-7) var(--s-6); }
.person { padding-top: var(--s-5); border-top: 1px solid var(--rule); }
.person__name { margin-bottom: var(--s-3); font: var(--t-h3-weight) var(--t-h3-size)/var(--t-h3-lead) var(--t-h3-family); letter-spacing: var(--t-h3-track); }
.person__line { margin-top: var(--s-2); color: var(--ink-2); }
.person__line .versal { display: block; margin-bottom: 2px; }
.plaques { display: grid; gap: var(--s-6); }
.plaque { padding-top: var(--s-5); border-top: 1px solid var(--rule); }
.plaque__title { font: 400 1.35rem/1.3 var(--f-display); letter-spacing: -0.005em; max-width: 30ch; }
.plaque__issuer { margin-top: var(--s-3); }
.plaque__year { margin-top: var(--s-1); font-variant-numeric: tabular-nums; }
.plaques__note { margin-top: var(--s-7); }
@media (min-width: 600px) { .people { grid-template-columns: repeat(2, minmax(0, 1fr)); } .person--office { grid-column: 1 / -1; } }
@media (min-width: 900px) {
  .pillars--long { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .people, .plaques { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .person--office { grid-column: auto; }
}

/* -- reveal ---------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] { transition: opacity var(--d-reveal) var(--e-out), transform var(--d-reveal) var(--e-out); }
  html:not(.no-js) [data-reveal]:not(.is-in) { opacity: 0; transform: translateY(24px); }
}

/* -- reduced motion: a 150 ms fade, nothing moves ---------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-property: opacity, visibility, display, overlay !important;
    transition-duration: 150ms !important;
    transition-delay: 0s !important;
  }
  :is(.btn, .chip, .hdr__tray, .hdr__btn, .tray__close, .tray__remove, .rail__btn, .viewer__btn, .viewer__close):active,
  .btn:hover .btn__arrow,
  :is(.pcard__link, .door__link, .spread__link):is(:hover, :focus-visible) img { transform: none; }
  .pcard .pcard__add, .pcard:hover .pcard__add { transform: none; }
}

/* -- print ----------------------------------------------------------------- */
@media print {
  .skip, .hdr, .ftr, .tray, .scrim, .toast, .palette, .viewer, .rail__ctrl, .pcard__add, .product__ctas, .filters { display: none !important; }
  body, .band--panel { background: var(--print-paper); color: var(--print-ink); }
  .band { padding-block: var(--s-6); }
  .product__photo { position: static; height: auto; aspect-ratio: 4 / 3; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}