/* =====================================================================
   THE ART INDEX — styles for art-index.html and the shop entrance.
   Colour roles come from site.css tokens, so light and dark both follow
   the house palette. Motion only answers interaction; reduced motion
   keeps every state change and drops the movement.
   ===================================================================== */

/* ---------- shared: one artwork box, always the artwork's proportion ---------- */
.ai-art{
  position:relative;display:block;aspect-ratio:var(--r,2/3);
  background:color-mix(in srgb,var(--ink) 6%,transparent);
  box-shadow:0 22px 44px -30px rgba(43,33,27,.42),0 3px 10px -6px rgba(43,33,27,.16);
  transition:transform .55s cubic-bezier(.22,1,.36,1),box-shadow .55s cubic-bezier(.22,1,.36,1);
}
.ai-art img{
  display:block;width:100%;height:100%;object-fit:contain;
  opacity:0;transition:opacity .5s ease;
}
.ai-art.is-in img{opacity:1}
.ai-art.is-in{background:transparent}
:root[data-theme="dark"] .ai-art{box-shadow:0 22px 48px -28px rgba(0,0,0,.8),0 0 0 1px rgba(150,160,215,.07)}
.ai-missing{display:none}
.ai-art.is-missing{background:color-mix(in srgb,var(--ink) 5%,transparent);box-shadow:inset 0 0 0 1px var(--line)}
.ai-art.is-missing img{display:none}
.ai-art.is-missing .ai-missing{
  display:grid;place-items:center;position:absolute;inset:0;padding:1rem;
  text-align:center;font-size:var(--t-xs);line-height:1.4;color:var(--earth);
}

/* ---------- the page ---------- */
.art-index-page main{padding-bottom:clamp(3rem,8vw,7rem)}
/* exhibition distance (neo, 18 Oct): wide quiet margins so the whole wall reads from a step back.
   Base margins run from about 6vw a side on phones to a quarter of the screen a side on desktop;
   the wall is then 10% wider than that (neo, 18 Oct), never over 1012px and never closer than 20px to the edge. */
.ai-page{
  --ai-side:max(20px,6vw,min(25vw,calc(6vw + (100vw - 640px) * .42)));
  width:min(1012px,calc(1.1 * (100% - 2 * var(--ai-side))),calc(100% - 40px));
  max-width:none;margin:0 auto;padding:0;
}
.ai-head{
  display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:1rem 2.5rem;
  padding:clamp(1.75rem,4vw,3.25rem) 0 0;
}
.ai-head .eyebrow{margin:0 0 .55rem;color:var(--accent-ink);letter-spacing:.2em;text-transform:uppercase;font-size:var(--t-xs)}
.ai-head h1{margin:0;font-weight:400;font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.04;letter-spacing:-.01em;color:var(--ink)}
.ai-head .lede{margin:.7rem 0 0;max-width:46ch;color:var(--earth);font-size:var(--t-md);line-height:1.5}
.ai-head-side{display:grid;justify-items:end;gap:.35rem;text-align:right;color:var(--earth);font-size:var(--t-xs);letter-spacing:.06em}
.ai-head-side a{color:var(--green);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
.ai-head-side a:hover{text-decoration:underline;text-underline-offset:.25em}
.ai-count{font-variant-numeric:tabular-nums;letter-spacing:.14em;text-transform:uppercase}

/* the composition */
.ai-surface{padding-top:clamp(1.25rem,3vw,2.25rem)}
.ai-spread{display:flex;align-items:flex-start;margin-top:clamp(1.5rem,2.8vw,2.75rem)}
.ai-spread:first-child{margin-top:0}
.ai-work{
  flex:0 0 var(--w);margin-left:var(--g);margin-top:var(--d);
  display:block;color:inherit;text-decoration:none;border-radius:2px;
  -webkit-tap-highlight-color:transparent;
}
.ai-work:focus{outline:none}
.ai-work:focus-visible .ai-art{outline:2px solid var(--gold);outline-offset:6px}
.ai-work.is-lifted .ai-art{visibility:hidden}
@media (hover:hover){
  .ai-work:hover .ai-art{transform:translateY(-3px);box-shadow:0 30px 56px -30px rgba(43,33,27,.5),0 4px 12px -6px rgba(43,33,27,.2)}
  :root[data-theme="dark"] .ai-work:hover .ai-art{box-shadow:0 30px 60px -28px rgba(0,0,0,.9),0 0 0 1px rgba(205,170,94,.22)}
}
.ai-cap{display:flex;gap:.7em;align-items:baseline;margin-top:.75rem;font-size:var(--t-xs);line-height:1.35;color:var(--earth)}
.ai-no{color:var(--accent-ink);font-variant-numeric:tabular-nums;letter-spacing:.1em;flex:none}
.ai-name{transition:opacity .45s ease}
@media (hover:hover){
  .ai-work .ai-name{opacity:0}
  .ai-work:hover .ai-name,.ai-work:focus-visible .ai-name{opacity:1}
}

/* interlocking: each work is placed by script into the highest open place */
.ai-surface.is-packed{position:relative;padding-top:0;margin-top:clamp(1.25rem,3vw,2.25rem)}
.ai-surface.is-packed .ai-work{position:absolute;margin:0}

/* the typographic index at the foot */
.ai-foot{margin-top:clamp(4rem,9vw,8rem);padding-top:clamp(1.5rem,3vw,2.25rem);border-top:1px solid var(--line)}
.ai-foot h2{margin:0 0 1.1rem;font-weight:400;font-size:var(--t-xs);letter-spacing:.2em;text-transform:uppercase;color:var(--accent-ink)}
.ai-list{list-style:none;margin:0;padding:0;columns:3 14rem;column-gap:2.5rem}
.ai-list li{break-inside:avoid}
.ai-list a{display:flex;gap:.8em;align-items:baseline;min-height:44px;padding:.55rem 0;color:var(--ink);text-decoration:none;font-size:var(--t-sm);line-height:1.3;border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.ai-list a:hover span:last-child{color:var(--green)}
.ai-list a:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.ai-foot-links{display:flex;flex-wrap:wrap;gap:.5rem 2rem;margin-top:2rem}
.ai-foot-links a{color:var(--green);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
.ai-foot-links a:hover{text-decoration:underline;text-underline-offset:.25em}
.ai-error{padding:3rem 0;color:var(--earth);max-width:48ch}
.ai-error a{color:var(--green)}

@media (max-width:820px){
  .ai-head{grid-template-columns:1fr}
  .ai-head-side{justify-items:start;text-align:left;grid-auto-flow:column;justify-content:start;align-items:center;gap:1.25rem}
}
@media (max-width:639px){
  .ai-spread{margin-top:1.4rem}
  .ai-cap{margin-top:.55rem}
}

/* ---------- the viewer ---------- */
html.ai-lock{overflow:hidden}
.ai-viewer{
  position:fixed;inset:0;width:100vw;height:100vh;height:100dvh;max-width:none;max-height:none;
  margin:0;padding:0;border:0;overflow:hidden;
  background:var(--solid);color:var(--ink);
  display:none;grid-template-rows:auto minmax(0,1fr);
}
:root[data-theme="dark"] .ai-viewer{background:#07080E}
.ai-viewer[open]{display:grid;animation:ai-veil-in .42s ease both}
.ai-viewer::backdrop{background:transparent}
.ai-viewer:focus{outline:none}
/* the open space around the print reads as "put it back" */
.ai-viewer{cursor:zoom-out}
.ai-v-frame,.ai-v-text > *,.ai-viewer button,.ai-viewer a{cursor:auto}
.ai-viewer button,.ai-viewer a{cursor:pointer}
.ai-viewer.is-leaving{animation:ai-veil-out .38s ease both}
@keyframes ai-veil-in{from{background-color:transparent}}
@keyframes ai-veil-out{to{background-color:transparent}}
.ai-viewer[open] .ai-v-bar,.ai-viewer[open] .ai-v-text{animation:ai-text-in .5s cubic-bezier(.22,1,.36,1) .12s both}
.ai-viewer.is-leaving .ai-v-bar,.ai-viewer.is-leaving .ai-v-text{animation:ai-text-out .2s ease both}
@keyframes ai-text-in{from{opacity:0;transform:translateY(6px)}}
@keyframes ai-text-out{to{opacity:0}}

.ai-v-bar{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:clamp(.6rem,1.6vw,1rem) clamp(1rem,3vw,2.25rem);
}
.ai-v-back,.ai-v-nav button{
  font:inherit;color:var(--ink);background:none;border:0;cursor:pointer;
  min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
}
.ai-v-back{padding:0 .4rem 0 0;font-size:var(--t-sm);letter-spacing:.04em}
.ai-v-ring{width:44px;height:44px;border-radius:50%;display:inline-grid;place-items:center;border:1px solid color-mix(in srgb,var(--gold) 55%,transparent);transition:border-color .3s,transform .3s}
.ai-v-back .ico,.ai-v-nav .ico{width:1rem;height:1rem;vertical-align:0}
.ai-v-back:hover .ai-v-ring{border-color:var(--gold);transform:translateY(-1px)}
.ai-v-nav{display:flex;align-items:center;gap:.35rem}
.ai-v-nav button{border-radius:50%;border:1px solid color-mix(in srgb,var(--gold) 55%,transparent);transition:border-color .3s,transform .3s}
.ai-v-nav button:hover{border-color:var(--gold);transform:translateY(-1px)}
.ai-v-count{margin:0;min-width:5.5ch;text-align:center;font-size:var(--t-xs);letter-spacing:.14em;color:var(--earth);font-variant-numeric:tabular-nums}
.ai-viewer button:focus-visible,.ai-v-link:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

.ai-v-body{
  display:grid;grid-template-columns:minmax(0,1.75fr) minmax(17rem,1fr);gap:clamp(1.5rem,4vw,4rem);
  padding:0 clamp(1rem,3vw,2.25rem) clamp(1rem,3vw,2.25rem);min-height:0;
}
.ai-v-stage{margin:0;display:grid;place-items:center;min-height:0;touch-action:pan-y;--vh:calc(100dvh - 7.5rem)}
.ai-v-frame{
  display:block;position:relative;aspect-ratio:var(--r,2/3);
  width:min(100%,calc(var(--vh) * var(--r,.667)));max-height:var(--vh);
  box-shadow:0 34px 70px -38px rgba(43,33,27,.55),0 6px 16px -8px rgba(43,33,27,.2);
  transform-origin:top left;
}
:root[data-theme="dark"] .ai-v-frame{box-shadow:0 34px 80px -34px rgba(0,0,0,.9),0 0 0 1px rgba(150,160,215,.08)}
.ai-v-frame img{display:block;width:100%;height:100%;object-fit:contain;user-select:none;-webkit-user-drag:none}
.ai-v-frame.is-missing{background:color-mix(in srgb,var(--ink) 5%,transparent)}
.ai-v-frame.is-missing img{visibility:hidden}

.ai-v-text{align-self:center;max-height:100%;overflow:auto;padding:.25rem .25rem 1rem 0;max-width:30rem}
.ai-v-no{margin:0 0 .6rem;font-size:var(--t-xs);letter-spacing:.18em;text-transform:uppercase;color:var(--accent-ink)}
.ai-v-text h2{margin:0;font-weight:400;font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.12;color:var(--ink)}
.ai-v-kicker{margin:1.6rem 0 .3rem;font-size:var(--t-xs);letter-spacing:.18em;text-transform:uppercase;color:var(--green)}
.ai-v-title{margin:0 0 .7rem;font-weight:400;font-size:var(--t-lg);line-height:1.25;color:var(--ink)}
.ai-v-copy p{margin:0 0 .85rem;color:var(--ink);opacity:.86;font-size:var(--t-sm);line-height:1.6}
.ai-v-copy .ar{font-family:var(--arabic)}
.ai-v-link{
  display:inline-flex;align-items:center;gap:.55rem;min-height:44px;margin-top:.6rem;padding:.6rem 1.35rem;
  border-radius:999px;background:var(--green);color:var(--marble);text-decoration:none;
  font-size:var(--t-sm);letter-spacing:.06em;transition:background .3s,transform .3s;
}
:root[data-theme="dark"] .ai-v-link{color:#06070D}
.ai-v-link:hover{background:var(--green-deep);transform:translateY(-1px)}

@media (max-width:860px){
  .ai-viewer{overflow:auto}
  .ai-viewer[open]{display:block}
  .ai-v-bar{position:sticky;top:0;z-index:2;background:inherit}
  .ai-v-body{grid-template-columns:1fr;gap:1.4rem;padding-bottom:2.5rem;min-height:auto}
  .ai-v-stage{--vh:62dvh;display:block}
  .ai-v-frame{margin:0 auto;height:auto;width:min(calc(100vw - 2 * clamp(1rem,3vw,2.25rem)),calc(var(--vh) * var(--r,.667)))}
  .ai-v-text{max-width:none;max-height:none;overflow:visible;align-self:start}
}
@media (max-width:480px){
  .ai-v-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
}

/* ---------- the shop entrance: a small contact sheet ---------- */
.ai-entrance,#studio-shop .ai-entrance{margin:clamp(1.25rem,3vw,2.25rem) auto 0;padding-block:0;max-width:min(1040px,calc(100% - 2 * var(--pad)));padding-inline:0}
.ai-entrance-card{
  display:grid;grid-template-columns:minmax(13rem,16.5rem) minmax(0,1fr);align-items:center;gap:clamp(1.25rem,3.4vw,3rem);
  padding:clamp(1.25rem,3vw,2.25rem) clamp(1.25rem,3.4vw,2.75rem);
  border-radius:clamp(20px,3vw,34px);
  background:color-mix(in srgb,var(--marble) 82%,transparent);
  box-shadow:0 30px 72px -46px rgba(73,48,24,.32),0 8px 22px -16px rgba(73,48,24,.12);
}
:root[data-theme="dark"] .ai-entrance-card{background:rgba(13,14,25,.66);box-shadow:0 0 0 1px rgba(150,160,215,.09),0 30px 72px -40px rgba(0,0,0,.8)}
.ai-entrance .eyebrow{margin:0 0 .6rem;color:var(--accent-ink);letter-spacing:.22em;text-transform:uppercase;font-size:var(--t-xs)}
.ai-entrance h2{margin:0;font-weight:400;font-size:clamp(1.3rem,2.1vw,1.6rem);line-height:1.25;color:var(--ink)}
.ai-entrance-foot{display:flex;flex-wrap:wrap;align-items:center;gap:.25rem 1.25rem;margin-top:.9rem}
.ai-entrance-link{color:var(--green);text-decoration:none;display:inline-flex;align-items:center;min-height:44px;font-size:var(--t-sm);letter-spacing:.04em}
.ai-entrance-link:hover{text-decoration:underline;text-underline-offset:.25em}
.ai-entrance .ai-count{font-size:var(--t-xs);color:var(--earth)}
.ai-sheet{
  --sheet-h:clamp(110px,11vw,156px);
  display:flex;align-items:flex-end;height:var(--sheet-h);min-width:0;
}
.ai-thumb{flex:none;height:calc(var(--h,1) * var(--sheet-h));margin-left:clamp(.7rem,1.6vw,1.35rem);display:block;border-radius:1px}
.ai-thumb:first-child{margin-left:0}
.ai-thumb:nth-child(3n+2){align-self:flex-start}
.ai-thumb:nth-child(3n){margin-left:clamp(1rem,2.4vw,2rem)}
.ai-thumb .ai-art{height:100%;width:auto;box-shadow:0 16px 30px -20px rgba(43,33,27,.45),0 2px 6px -3px rgba(43,33,27,.16)}
.ai-thumb:focus{outline:none}
.ai-thumb:focus-visible .ai-art{outline:2px solid var(--gold);outline-offset:4px}
@media (hover:hover){ .ai-thumb:hover .ai-art{transform:translateY(-2px)} }

@media (max-width:760px){
  .ai-entrance-card{grid-template-columns:1fr;gap:1.1rem}
  .ai-sheet{--sheet-h:clamp(96px,28vw,132px)}
}

@media (prefers-reduced-motion:reduce){
  .ai-art,.ai-art img,.ai-name,.ai-v-link,.ai-v-nav button,.ai-v-ring{transition:none}
  .ai-viewer[open],.ai-viewer.is-leaving,.ai-viewer[open] .ai-v-bar,.ai-viewer[open] .ai-v-text,.ai-viewer.is-leaving .ai-v-bar,.ai-viewer.is-leaving .ai-v-text{animation:none}
  .ai-work:hover .ai-art,.ai-thumb:hover .ai-art{transform:none}
}