/* ==========================================================================
   Slate & Ink — page sections
   ========================================================================== */

/* ---- Hero --------------------------------------------------------------- */
.hero { padding-block: clamp(28px, 4vw, 56px) clamp(56px, 7vw, 104px); overflow: hidden; }
.hero__grid { display: grid; gap: clamp(28px, 4vw, 40px); }
@media (min-width: 1000px) {
  .hero__grid { grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr); align-items: center; gap: var(--gutter); }
}
.hero__title { font-size: var(--t-h1); line-height: 0.9; letter-spacing: -0.05em; font-weight: 600; text-wrap: balance; }
.hero__title em { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.02em; }
.hero__copy { max-width: 40ch; margin-top: var(--s-5); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.hero__minor { margin-top: var(--s-5); }

/* The stage: diaries treated as physical objects on a studio surface. */
.hero__stage {
  position: relative;
  aspect-ratio: 5 / 4;
  min-height: 320px;
  perspective: 1400px;
}
@media (max-width: 999px) { .hero__stage { aspect-ratio: 4 / 3; } }
.hero__obj {
  position: absolute;
  transform: translate3d(var(--px, 0px), var(--py, 0px), 0) rotate(var(--rot, 0deg));
  transition: transform 900ms var(--ease-out);
  will-change: transform;
}
.hero__obj svg { width: 100%; height: auto; }
.hero__obj--a { width: 33%; left: 1%;   top: 14%;   --rot: -9deg; z-index: 2; }
.hero__obj--b { width: 38%; left: 31%;  top: 1%;    --rot: 2deg;  z-index: 4; }
.hero__obj--c { width: 30%; right: 0%;  top: 13%;   --rot: 10deg; z-index: 3; }
.hero__obj--d { width: 21%; left: 17%;  bottom: 3%; --rot: 7deg;  z-index: 5; }
.hero__obj--e { width: 23%; right: 12%; bottom: 1%; --rot: -6deg; z-index: 5; }

/* On a phone, three objects at a readable size beats five small ones. */
@media (max-width: 640px) {
  .hero__stage { aspect-ratio: 1 / 1; }
  .hero__obj--a { width: 44%; left: 0%;   top: 16%; }
  .hero__obj--b { width: 50%; left: 26%;  top: 2%; }
  .hero__obj--c { width: 40%; right: -2%; top: 34%; }
  .hero__obj--d { width: 30%; left: 10%;  bottom: 2%; }
  .hero__obj--e { display: none; }
}
.hero__surface {
  position: absolute; inset: auto 0 6% 0; height: 1px; background: var(--border);
}
.hero__ticker { display: flex; gap: var(--s-5); flex-wrap: wrap; margin-top: var(--s-7); padding-top: var(--s-4); border-top: 1px solid var(--border); }
.hero__ticker span { font-size: var(--t-micro); letter-spacing: var(--track-label); text-transform: uppercase; color: var(--fg-muted); }

/* ---- Category grid (editorial, deliberately uneven) --------------------- */
.cat-grid { display: grid; gap: clamp(12px, 1.4vw, 22px); grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (min-width: 900px) {
  .cat-grid { grid-template-columns: repeat(6, minmax(0,1fr)); grid-auto-rows: minmax(0, auto); }
  .cat-grid > *:nth-child(1) { grid-column: span 3; }
  .cat-grid > *:nth-child(2) { grid-column: span 3; }
  .cat-grid > *:nth-child(3) { grid-column: span 2; }
  .cat-grid > *:nth-child(4) { grid-column: span 2; }
  .cat-grid > *:nth-child(5) { grid-column: span 2; }
  .cat-grid > *:nth-child(6) { grid-column: span 6; min-height: clamp(240px, 26vw, 380px); }
  .cat-grid > *:nth-child(6) .cat-card__art svg { width: 32%; height: 88%; }
}

/* ---- Colour story ------------------------------------------------------- */
.colour-story { display: grid; gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (min-width: 900px) { .colour-story { grid-template-columns: 1.05fr 1fr; } }
.colour-story__stage {
  position: relative;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  background: var(--paper-warm);
  overflow: hidden;
  border-radius: var(--radius);
}
.colour-story__stage::after {
  content: attr(data-hex);
  position: absolute; bottom: 14px; right: 16px;
  font-size: var(--t-micro); letter-spacing: var(--track-label);
  color: var(--fg-subtle); font-variant-numeric: tabular-nums;
}
.colour-story__art { width: 58%; }
.colour-story__art svg { width: 100%; height: auto; }
.colour-story__art.is-swapping { animation: swap 340ms var(--ease-out); }
@keyframes swap {
  0%   { opacity: 0; transform: translateY(10px) rotate(-1.5deg) scale(.985); }
  100% { opacity: 1; transform: none; }
}
.colour-story__name { font-size: clamp(2rem, 5vw, 3.75rem); letter-spacing: -0.045em; font-weight: 600; line-height: 1; }
.colour-story__note { font-family: var(--font-serif); font-size: clamp(1.25rem, 2.4vw, 1.85rem); line-height: 1.25; color: var(--fg); max-width: 24ch; margin-top: var(--s-4); }
.colour-story__picker { display: flex; flex-wrap: wrap; gap: 12px; margin-top: var(--s-6); }
.colour-story__hint { margin-top: var(--s-5); }

/* ---- Campaign / 2027 ---------------------------------------------------- */
.campaign { position: relative; overflow: hidden; }
.campaign__type {
  font-size: var(--t-mega);
  line-height: .82;
  letter-spacing: -0.055em;
  font-weight: 600;
}
.campaign__grid { display: grid; gap: clamp(28px, 4vw, 64px); align-items: center; }
@media (min-width: 900px) { .campaign__grid { grid-template-columns: 1fr 1fr; } }
.campaign__stage { position: relative; display: grid; place-items: center; aspect-ratio: 1/1; }
.campaign__stage svg { width: 72%; height: auto; }

/* ---- Flipbook ----------------------------------------------------------- */
.flip {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin-inline: auto;
  aspect-ratio: 3 / 2;
  perspective: 2200px;
  background: var(--paper-warm);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  padding: clamp(16px, 3vw, 44px);
}
.flip__book { position: relative; width: 100%; height: 100%; display: grid; place-items: center; }
.flip__page { position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity 220ms var(--ease); }
.flip__page svg { width: 100%; height: 100%; }
.flip__page.is-current { opacity: 1; pointer-events: auto; }
.flip__page.is-turning { animation: page-turn 540ms var(--ease-out); transform-origin: 50% 50%; }
@keyframes page-turn {
  0%   { transform: rotateY(-18deg) scale(.985); opacity: .2; }
  100% { transform: none; opacity: 1; }
}
.flip__bar { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); margin-top: var(--s-5); flex-wrap: wrap; }
.flip__tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.flip__nav { display: flex; gap: 6px; }
.flip__caption { font-size: var(--t-small); color: var(--fg-muted); }

/* ---- Product finder ----------------------------------------------------- */
.finder {
  position: fixed; inset: 0; z-index: 110;
  background: var(--paper);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur);
}
.finder.is-open { opacity: 1; visibility: visible; }
.finder__head { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); border-bottom: 1px solid var(--border); flex: none; }
.finder__progress { position: absolute; left: 0; top: var(--header-h); height: 1px; background: var(--ink); width: 0; transition: width 420ms var(--ease-out); z-index: 2; }
.finder__body { flex: 1; overflow-y: auto; display: flex; align-items: center; padding-block: clamp(28px, 6vw, 72px); }
.finder__step { width: 100%; animation: step-in 400ms var(--ease-out); }
@keyframes step-in { from { opacity: 0; transform: translateY(16px); } }
.finder__q { font-size: clamp(2rem, 6vw, 4.5rem); line-height: .95; letter-spacing: -0.05em; font-weight: 600; max-width: 15ch; }
.finder__q em { font-family: var(--font-serif); font-style: italic; font-weight: 400; }
.finder__opts { display: grid; gap: 10px; margin-top: clamp(28px, 4vw, 52px); max-width: 760px; }
.finder__opt {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-4);
  width: 100%; text-align: left;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 500; letter-spacing: -0.02em;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.finder__opt:hover { border-color: var(--ink); transform: translateX(4px); }
.finder__opt[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.finder__opt-key { font-size: var(--t-micro); letter-spacing: var(--track-label); color: var(--fg-subtle); font-weight: 500; }
.finder__opt[aria-pressed="true"] .finder__opt-key { color: var(--slate-200); }

.finder__colours { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 10px; margin-top: clamp(28px, 4vw, 52px); }
.finder__colour {
  aspect-ratio: 4/5;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 14px;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.finder__colour:hover { border-color: var(--ink); transform: translateY(-3px); }
.finder__colour[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.finder__colour-chip { width: 100%; flex: 1; background: var(--swatch); border-radius: 1px; margin-bottom: 12px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.1); }
.finder__colour-chip--mystery { background: repeating-linear-gradient(45deg, var(--paper-deep) 0 8px, var(--paper-warm) 8px 16px); }
.finder__colour-name { font-size: var(--t-tiny); font-weight: 500; letter-spacing: -0.01em; }

.finder__result-head { display: grid; gap: var(--s-4); margin-bottom: clamp(28px, 4vw, 52px); }
.finder__why { font-size: var(--t-small); color: var(--fg-muted); border-top: 1px solid var(--border); padding-top: 10px; margin-top: 10px; }
.finder__foot { flex: none; border-top: 1px solid var(--border); padding-block: var(--s-4); display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); }

/* ---- Brand statement ---------------------------------------------------- */
.statement__type {
  font-size: clamp(2.1rem, 6.4vw, 6rem);
  line-height: .96;
  letter-spacing: -0.05em;
  font-weight: 600;
  text-wrap: balance;
}
.statement__type em { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.02em; }

/* ---- Reviews ------------------------------------------------------------ */
.quotes { display: grid; gap: clamp(36px, 5vw, 80px); }
@media (min-width: 900px) { .quotes { grid-template-columns: repeat(3, 1fr); } }
.quote { display: flex; flex-direction: column; gap: var(--s-4); border-top: 1px solid var(--border); padding-top: var(--s-5); }
.quote__text { font-size: clamp(1.25rem, 2.1vw, 1.9rem); line-height: 1.2; letter-spacing: -0.03em; font-weight: 500; text-wrap: pretty; }
.quote__by { font-size: var(--t-tiny); color: var(--fg-muted); display: flex; align-items: center; gap: 8px; margin-top: auto; }
.quote__badge { display: inline-flex; align-items: center; gap: 5px; }

/* ---- Corporate ---------------------------------------------------------- */
.steps { display: grid; gap: 1px; background: var(--border); border-block: 1px solid var(--border); }
@media (min-width: 800px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { background: var(--bg); padding: var(--s-6) var(--s-5) var(--s-7); display: grid; gap: var(--s-3); align-content: start; }
.step__num { font-size: var(--t-micro); letter-spacing: var(--track-label); color: var(--fg-subtle); font-variant-numeric: tabular-nums; }
.step__title { font-size: var(--t-h4); font-weight: 600; letter-spacing: -0.025em; }
.step__body { font-size: var(--t-small); color: var(--fg-muted); }

.usecases { display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border); }
@media (min-width: 640px) { .usecases { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .usecases { grid-template-columns: repeat(4, 1fr); } }
.usecase { background: var(--bg); padding: var(--s-5); min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; gap: var(--s-5); transition: background var(--dur) var(--ease); }
.usecase:hover { background: var(--paper-warm); }
.usecase__title { font-weight: 550; letter-spacing: -0.02em; }
.usecase__note { font-size: var(--t-small); color: var(--fg-muted); }

/* ---- Shop page ---------------------------------------------------------- */
.shop-layout { display: grid; gap: var(--gutter); align-items: start; }
@media (min-width: 1000px) { .shop-layout { grid-template-columns: 232px minmax(0, 1fr); } }
.filters { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: var(--s-5); }
@media (max-width: 999px) {
  .filters {
    position: fixed; inset: auto 0 0 0; z-index: 100; max-height: 84vh; overflow-y: auto;
    background: var(--paper); padding: var(--s-5); border-top: 1px solid var(--border);
    transform: translateY(101%); visibility: hidden;
    transition: transform var(--dur-slow) var(--ease-out), visibility var(--dur-slow);
    border-radius: 10px 10px 0 0;
  }
  .filters.is-open { transform: none; visibility: visible; }
}
.filter-group { border-top: 1px solid var(--border); padding-top: var(--s-4); }
.filter-group__title { font-size: var(--t-micro); letter-spacing: var(--track-label); text-transform: uppercase; color: var(--fg-muted); margin-bottom: var(--s-3); }
.filter-opt { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: var(--t-small); cursor: pointer; color: var(--fg-muted); transition: color var(--dur-fast) var(--ease); width: 100%; text-align: left; }
.filter-opt:hover, .filter-opt[aria-pressed="true"] { color: var(--ink); }
.filter-opt__box { width: 14px; height: 14px; border: 1px solid var(--slate-100); border-radius: 1px; flex: none; display: grid; place-items: center; }
.filter-opt[aria-pressed="true"] .filter-opt__box { background: var(--ink); border-color: var(--ink); }
.filter-opt[aria-pressed="true"] .filter-opt__box::after { content: ""; width: 6px; height: 3px; border-left: 1.5px solid var(--paper); border-bottom: 1.5px solid var(--paper); transform: rotate(-45deg) translate(0.5px, -1px); }
.filter-opt__count { margin-left: auto; font-size: var(--t-tiny); color: var(--fg-subtle); font-variant-numeric: tabular-nums; }
.filter-colours { display: flex; flex-wrap: wrap; gap: 9px; }

.shop-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); padding-bottom: var(--s-4); border-bottom: 1px solid var(--border); margin-bottom: clamp(24px, 3vw, 40px); flex-wrap: wrap; }
.sort-select { border: 0; background: none; font-size: var(--t-small); cursor: pointer; padding-right: 16px; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%230B0B0C' stroke-width='1.2'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right center; }
#filterScrim { z-index: 90; }
@media (min-width: 1000px) { #filterScrim { display: none; } }
.filter-fab { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 60; box-shadow: 0 6px 24px rgba(11,11,12,.18); }
@media (min-width: 1000px) { .filter-fab { display: none; } }

.active-filters { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---- Product detail page ------------------------------------------------ */
.pdp { display: grid; gap: var(--gutter); align-items: start; }
@media (min-width: 1000px) { .pdp { grid-template-columns: minmax(0, 1.22fr) minmax(340px, 0.78fr); } }

.gallery { display: grid; gap: clamp(6px, 1vw, 14px); }
@media (min-width: 640px) { .gallery--desktop { grid-template-columns: 1fr 1fr; } }
.gallery__cell { background: var(--paper-warm); aspect-ratio: 4/5; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius); position: relative; cursor: zoom-in; }
.gallery__cell svg { width: 100%; height: 100%; transition: transform 700ms var(--ease-out); }
.gallery__cell:hover svg { transform: scale(1.06); }
.gallery__cell--wide { grid-column: 1 / -1; aspect-ratio: 16/10; }
.gallery__cell--wide svg { width: 100%; }
.gallery__tag { position: absolute; left: 12px; bottom: 12px; font-size: var(--t-micro); letter-spacing: var(--track-label); text-transform: uppercase; color: var(--fg-subtle); }

/* Mobile: a swipeable rail instead of a grid. */
.gallery--mobile { display: flex; gap: 8px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
.gallery--mobile::-webkit-scrollbar { display: none; }
.gallery--mobile .gallery__cell { flex: 0 0 82%; scroll-snap-align: center; cursor: default; }
.gallery__dots { display: flex; gap: 6px; justify-content: center; margin-top: var(--s-3); }
.gallery__dot { width: 5px; height: 5px; border-radius: 50%; background: var(--slate-100); transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease); }
.gallery__dot.is-on { background: var(--ink); transform: scale(1.3); }

.buybox { position: sticky; top: calc(var(--header-h) + 24px); display: grid; gap: var(--s-5); }
.buybox__name { font-size: clamp(1.75rem, 3vw, 2.75rem); letter-spacing: -0.04em; line-height: 1.02; font-weight: 600; }
.buybox__desc { color: var(--fg-muted); font-size: var(--t-lead); line-height: 1.34; letter-spacing: -0.015em; }
.buybox__price { font-size: var(--t-h4); font-variant-numeric: tabular-nums; }
.buybox__row { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); }
.buybox__actions { display: grid; gap: 10px; }
.buybox__trust { display: grid; gap: 8px; font-size: var(--t-small); color: var(--fg-muted); border-top: 1px solid var(--border); padding-top: var(--s-4); }
.buybox__trust li { display: flex; gap: 10px; align-items: flex-start; }
.buybox__trust svg { width: 15px; height: 15px; flex: none; margin-top: 3px; }

.sticky-buy {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
  display: flex; align-items: center; gap: var(--s-4);
  transform: translateY(101%);
  transition: transform var(--dur) var(--ease-out);
}
.sticky-buy.is-on { transform: none; }
.sticky-buy__art { width: 34px; height: 42px; flex: none; }
.sticky-buy__meta { min-width: 0; flex: 1; }
.sticky-buy__name { font-size: var(--t-small); font-weight: 550; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.spec-grid { display: grid; gap: 0; border-top: 1px solid var(--border); }
.spec-row { display: grid; grid-template-columns: minmax(120px, 0.4fr) 1fr; gap: var(--s-4); padding: 14px 0; border-bottom: 1px solid var(--rule-soft); font-size: var(--t-small); }
.spec-row dt { color: var(--fg-muted); }

.accordion { border-top: 1px solid var(--border); }
.accordion__item { border-bottom: 1px solid var(--border); }
.accordion__btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); padding: 20px 0; text-align: left; font-weight: 550; letter-spacing: -0.02em; }
.accordion__icon { position: relative; width: 12px; height: 12px; flex: none; }
.accordion__icon::before, .accordion__icon::after { content: ""; position: absolute; background: var(--ink); transition: transform var(--dur) var(--ease); }
.accordion__icon::before { inset: 5px 0 auto 0; height: 1px; }
.accordion__icon::after { inset: 0 5px auto 5px; width: 1px; height: 12px; }
.accordion__btn[aria-expanded="true"] .accordion__icon::after { transform: scaleY(0); }
.accordion__panel { overflow: hidden; height: 0; transition: height var(--dur) var(--ease); }
.accordion__inner { padding-bottom: 22px; color: var(--fg-muted); font-size: var(--t-small); max-width: 62ch; }

/* ---- About / editorial -------------------------------------------------- */
.editorial { display: grid; gap: clamp(28px, 4vw, 64px); align-items: center; }
@media (min-width: 900px) { .editorial--split { grid-template-columns: 1fr 1fr; } }
.editorial__media { background: var(--paper-warm); aspect-ratio: 4/5; display: grid; place-items: center; overflow: hidden; border-radius: var(--radius); }
.editorial__media svg { width: 82%; height: auto; }
.editorial__media--wide { aspect-ratio: 16/9; }

/* ---- Cart page ---------------------------------------------------------- */
.cart-page { display: grid; gap: var(--gutter); align-items: start; }
@media (min-width: 900px) { .cart-page { grid-template-columns: minmax(0,1.5fr) minmax(300px,0.5fr); } }
.summary { border: 1px solid var(--border); padding: var(--s-5); display: grid; gap: var(--s-4); position: sticky; top: calc(var(--header-h) + 24px); }
.summary__row { display: flex; justify-content: space-between; font-size: var(--t-small); }
.summary__total { display: flex; justify-content: space-between; font-size: var(--t-h4); font-weight: 600; border-top: 1px solid var(--border); padding-top: var(--s-4); font-variant-numeric: tabular-nums; }

.cart-row { display: grid; grid-template-columns: 100px minmax(0,1fr); gap: var(--s-5); padding-block: var(--s-5); border-bottom: 1px solid var(--border); align-items: start; }
@media (min-width: 700px) { .cart-row { grid-template-columns: 128px minmax(0,1fr) auto; } }
.cart-row__media { background: var(--paper-warm); aspect-ratio: 4/5; display: grid; place-items: center; overflow: hidden; }

/* ---- 404 ---------------------------------------------------------------- */
.torn { display: grid; place-items: center; text-align: center; min-height: 62vh; gap: var(--s-5); }