.atelier{position:relative;width:100%;overflow:hidden;background:radial-gradient(120% 80% at 50% -10%, rgba(232,221,207,.55), transparent 60%), var(--ivory);padding:clamp(3.5rem,7vw,7rem) 0 clamp(3rem,5vw,5rem);}
  .atl-head{max-width:760px;margin:0 auto clamp(2.25rem,4vw,3.5rem);padding:0 1.5rem;text-align:center;}
  .atl-eyebrow{font-family:var(--sans);font-weight:400;font-size:clamp(.62rem,1.1vw,.72rem);letter-spacing:.34em;text-transform:uppercase;color:var(--taupe);margin:0 0 1.1rem;}
  .atl-eyebrow .sep{color:var(--gold);padding:0 .35em;}
  .atl-title{font-family:var(--display);font-weight:400;font-size:clamp(2.4rem,6vw,4rem);line-height:1.02;letter-spacing:.005em;margin:0;color:var(--charcoal);}
  .atl-title .accent{font-family:var(--serif);font-style:italic;font-weight:300;color:var(--gold);}
  .atl-lede{font-family:var(--serif);font-style:italic;font-weight:300;font-size:clamp(1.05rem,2.1vw,1.35rem);color:var(--taupe);margin:1rem auto 0;max-width:36ch;line-height:1.5;}
  .atl-stage{position:relative;width:100%;height:clamp(440px,62vh,640px);touch-action:pan-y;cursor:grab;user-select:none;-webkit-user-select:none;perspective:1700px;outline:none;}
  .atl-stage.is-grabbing{cursor:grabbing;}
  .atl-stage:focus-visible{box-shadow:inset 0 0 0 2px var(--gold);}
  .atl-track{position:absolute;inset:0;transform-style:preserve-3d;}
  .atl-card{position:absolute;top:50%;left:50%;width:clamp(190px,21vw,300px);aspect-ratio:3/4;margin-left:calc(clamp(190px,21vw,300px) / -2);margin-top:calc(clamp(190px,21vw,300px) * 4 / 3 / -2);transform-origin:50% 50%;backface-visibility:hidden;}
  .atl-card__frame{position:absolute;inset:0;background:var(--champagne);overflow:hidden;border-radius:12px;box-shadow:0 1px 1px rgba(24,16,9,.04),0 18px 40px -22px rgba(24,16,9,.45);transition:box-shadow .5s ease;}
  .atl-card__frame::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(247,244,239,.5);pointer-events:none;border-radius:12px;}
  .atl-card__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;opacity:0;transform:scale(1.06);filter:saturate(calc(1 - var(--atl-dim,0)*.55));transition:opacity .9s ease, transform 1.6s ease, filter .6s ease;}
  .atl-card__img.loaded{opacity:1;transform:scale(1);}
  .atl-card.is-focus .atl-card__frame{box-shadow:0 3px 6px rgba(24,16,9,.10),0 48px 92px -32px rgba(24,16,9,.72);}
  .atl-card.is-focus .atl-card__frame::after{box-shadow:inset 0 0 0 1px rgba(200,169,126,.85);}
  .atl-card.is-focus .atl-card__img.loaded{animation:atl-kb 13s ease-in-out infinite alternate;}
  @keyframes atl-kb{from{transform:scale(1)}to{transform:scale(1.07)}}
  .atl-card__tag{position:absolute;left:0;bottom:0;width:100%;padding:2.2rem .9rem .8rem;font-family:var(--sans);font-weight:400;font-size:.6rem;letter-spacing:.26em;text-transform:uppercase;color:var(--ivory);background:linear-gradient(to top,rgba(24,16,9,.55),transparent);opacity:0;transition:opacity .5s ease;pointer-events:none;}
  .atl-card.is-focus .atl-card__tag{opacity:1;}
  .atl-stage::before,.atl-stage::after{content:"";position:absolute;top:0;bottom:0;width:clamp(60px,12vw,200px);z-index:5;pointer-events:none;}
  .atl-stage::before{left:0;background:linear-gradient(to right,var(--ivory),transparent);}
  .atl-stage::after{right:0;background:linear-gradient(to left,var(--ivory),transparent);}
  .atl-foot{max-width:1100px;margin:clamp(1.5rem,3vw,2.5rem) auto 0;padding:0 1.5rem;display:flex;align-items:center;justify-content:center;gap:clamp(1rem,3vw,2.25rem);position:relative;z-index:6;}
  .atl-caption{text-align:center;min-width:170px;}
  .atl-caption__by{font-family:var(--sans);font-weight:400;font-size:.6rem;letter-spacing:.3em;text-transform:uppercase;color:var(--taupe);display:block;margin-bottom:.35rem;}
  .atl-caption__name{font-family:var(--serif);font-style:italic;font-weight:400;font-size:1.55rem;color:var(--charcoal);line-height:1;display:inline-block;}
  .atl-caption__count{font-family:var(--sans);font-weight:300;font-size:.64rem;letter-spacing:.2em;color:var(--taupe);margin-top:.45rem;display:block;}
  .atl-progress{display:block;width:clamp(120px,18vw,200px);height:1px;background:var(--limestone);position:relative;overflow:hidden;margin:.7rem auto 0;}
  .atl-progress__fill{position:absolute;left:0;top:0;height:100%;width:0;background:var(--gold);transition:width .4s var(--ease);}
  .atl-nav{display:flex;gap:.7rem;}
  .atl-nav button{width:54px;height:54px;border:1px solid var(--limestone);background:transparent;color:var(--charcoal);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .35s ease,color .35s ease,border-color .35s ease;-webkit-tap-highlight-color:transparent;}
  .atl-nav button:hover{background:var(--charcoal);color:var(--ivory);border-color:var(--charcoal);}
  .atl-nav button:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
  .atl-nav button svg{width:17px;height:17px;}
  .atl-hint{position:absolute;left:50%;bottom:.2rem;transform:translateX(-50%);font-family:var(--sans);font-weight:300;font-size:.58rem;letter-spacing:.3em;text-transform:uppercase;color:var(--taupe);display:flex;align-items:center;gap:.6rem;opacity:.85;pointer-events:none;}
  .atl-hint .line{width:34px;height:1px;background:var(--limestone);display:inline-block;}
  @media (max-width:720px){.atl-hint{display:none;}}
  .atl-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
  @media (max-width:720px){
    .atl-stage{height:auto;perspective:none;cursor:default;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding:1.25rem 0 1.75rem;touch-action:pan-x;scrollbar-width:none;}
    .atl-stage::-webkit-scrollbar{display:none;}
    .atl-track{position:relative;inset:auto;display:flex;gap:14px;padding:0 16vw;width:max-content;transform:none !important;transform-style:flat;}
    .atl-card{position:relative !important;top:auto;left:auto;margin:0;width:68vw;max-width:320px;transform:none !important;opacity:1 !important;display:block !important;scroll-snap-align:center;flex:0 0 auto;}
    .atl-card__tag,.atl-card.is-focus .atl-card__tag{opacity:1;}
    .atl-card.is-focus .atl-card__frame{box-shadow:0 26px 50px -28px rgba(24,16,9,.5);}
    .atl-stage::before,.atl-stage::after{display:none;}
  }
  @media (prefers-reduced-motion: reduce){
    .atl-card,.atl-card__img,.atl-card__frame,.atl-card__tag,.atl-nav button{transition:none !important;}
    .atl-card.is-focus .atl-card__img.loaded{animation:none !important;}
  }
  /* ---- click-to-enlarge affordance ---- */
  .atl-card.is-focus .atl-card__frame{cursor:zoom-in;}
  .atl-card__zoom{position:absolute;top:.7rem;right:.7rem;width:34px;height:34px;border-radius:50%;background:rgba(12,12,12,.34);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(.82);transition:opacity .4s ease,transform .4s ease;pointer-events:none;z-index:3;}
  .atl-card__zoom svg{width:15px;height:15px;color:var(--ivory);}
  .atl-card.is-focus .atl-card__frame:hover .atl-card__zoom{opacity:1;transform:scale(1);}
  /* ---- lightbox ---- */
  html.atl-lb-lock{overflow:hidden;}
  .atl-lb{position:fixed;inset:0;z-index:3000;display:flex;align-items:center;justify-content:center;padding:clamp(1rem,4vw,3rem);background:rgba(12,12,12,.86);-webkit-backdrop-filter:blur(8px) saturate(118%);backdrop-filter:blur(8px) saturate(118%);opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility .45s var(--ease);}
  .atl-lb.is-open{opacity:1;visibility:visible;}
  .atl-lb__fig{position:relative;margin:0;display:flex;flex-direction:column;align-items:center;gap:1rem;max-width:100%;max-height:100%;transform:scale(.96) translateY(10px);opacity:0;transition:transform .5s var(--ease),opacity .5s var(--ease);}
  .atl-lb.is-open .atl-lb__fig{transform:none;opacity:1;}
  .atl-lb__img{display:block;max-width:min(92vw,840px);max-height:84vh;width:auto;height:auto;border-radius:14px;background:var(--champagne);box-shadow:0 50px 140px -40px rgba(0,0,0,.8),0 0 0 1px rgba(247,244,239,.08);opacity:0;transition:opacity .45s ease;}
  .atl-lb__img.is-ready{opacity:1;}
  .atl-lb__cap{display:flex;flex-direction:column;align-items:center;gap:.35rem;color:var(--ivory);text-align:center;}
  .atl-lb__studio{font-family:var(--serif);font-style:italic;font-weight:400;font-size:1.3rem;}
  .atl-lb__count{font-family:var(--sans);font-weight:300;font-size:.6rem;letter-spacing:.28em;text-transform:uppercase;color:var(--taupe);}
  .atl-lb__close{position:absolute;top:clamp(.8rem,2.5vw,1.6rem);right:clamp(.8rem,2.5vw,1.6rem);width:48px;height:48px;border-radius:50%;border:1px solid rgba(247,244,239,.25);background:rgba(12,12,12,.3);color:var(--ivory);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2;transition:background .3s ease,transform .4s var(--ease);-webkit-tap-highlight-color:transparent;}
  .atl-lb__close:hover{background:rgba(247,244,239,.16);transform:rotate(90deg);}
  .atl-lb__close svg{width:20px;height:20px;}
  .atl-lb__nav{position:absolute;top:50%;transform:translateY(-50%);width:54px;height:54px;border-radius:50%;border:1px solid rgba(247,244,239,.22);background:rgba(12,12,12,.28);color:var(--ivory);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2;transition:background .3s ease,border-color .3s ease;-webkit-tap-highlight-color:transparent;}
  .atl-lb__nav:hover{background:rgba(247,244,239,.16);border-color:rgba(247,244,239,.5);}
  .atl-lb__nav svg{width:20px;height:20px;}
  .atl-lb__prev{left:clamp(.6rem,3vw,2rem);}
  .atl-lb__next{right:clamp(.6rem,3vw,2rem);}
  .atl-lb__close:focus-visible,.atl-lb__nav:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
  @media (max-width:720px){
    .atl-card.is-focus .atl-card__zoom{opacity:.85;transform:none;}
    .atl-lb__nav{top:auto;bottom:1.1rem;transform:none;width:46px;height:46px;}
    .atl-lb__prev{left:50%;margin-left:-56px;}
    .atl-lb__next{right:50%;margin-right:-56px;}
    .atl-lb__fig{padding-bottom:3.4rem;}
  }
  @media (prefers-reduced-motion: reduce){
    .atl-lb,.atl-lb__fig,.atl-lb__img{transition:opacity .2s ease !important;}
    .atl-lb__fig{transform:none !important;}
    .atl-lb__close:hover{transform:none;}
  }
  /* ---- filter ---- */
  .atl-filter{max-width:1100px;margin:0 auto clamp(1.6rem,3.4vw,2.6rem);padding:0 1.5rem;}
  .atl-filter__head{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.7rem;min-height:1.9rem;}
  .atl-filter__result{font-family:var(--serif);font-style:italic;font-size:clamp(1.05rem,2.1vw,1.4rem);color:var(--charcoal);}
  .atl-filter__result .n{font-family:var(--sans);font-style:normal;font-weight:300;font-size:.6rem;letter-spacing:.2em;color:var(--taupe);text-transform:uppercase;margin-left:.7rem;vertical-align:middle;}
  .atl-filter__clear{font-family:var(--sans);font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;color:var(--taupe);background:none;border:none;border-bottom:1px solid var(--limestone);padding:.3rem 0;cursor:pointer;display:inline-flex;align-items:center;gap:.4rem;transition:color .3s ease,border-color .3s ease;-webkit-tap-highlight-color:transparent;}
  .atl-filter__clear:hover{color:var(--charcoal);border-color:var(--gold);}
  .atl-filter__row{display:flex;align-items:center;gap:1rem;padding:.5rem 0;border-top:0.5px solid rgba(169,155,140,.2);}
  .atl-filter__label{flex:0 0 auto;width:64px;font-family:var(--sans);font-weight:400;font-size:.55rem;letter-spacing:.22em;text-transform:uppercase;color:var(--taupe);}
  .atl-filter__chips{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;flex:1;min-width:0;}
  .atl-sw{width:26px;height:26px;border-radius:50%;border:1px solid rgba(169,155,140,.55);cursor:pointer;position:relative;padding:0;transition:transform .25s ease;-webkit-tap-highlight-color:transparent;flex:0 0 auto;}
  /* expand tap area to 44x44 without changing visual swatch size */
  .atl-sw::after{content:"";position:absolute;left:50%;top:50%;width:44px;height:44px;transform:translate(-50%,-50%);}
  .atl-filter__clear{min-height:44px;}
  .atl-sw:hover{transform:scale(1.14);}
  .atl-sw[aria-pressed="true"]{outline:2px solid var(--charcoal);outline-offset:2px;}
  .atl-sw__ck{position:absolute;inset:0;display:none;align-items:center;justify-content:center;}
  .atl-sw[aria-pressed="true"] .atl-sw__ck{display:flex;}
  .atl-sw__ck svg{width:13px;height:13px;}
  .atl-chip{font-family:var(--sans);font-weight:300;font-size:.72rem;letter-spacing:.06em;color:var(--taupe);background:transparent;border:1px solid var(--limestone);border-radius:100px;padding:.32rem .85rem;cursor:pointer;transition:background .3s ease,color .3s ease,border-color .3s ease;text-transform:capitalize;white-space:nowrap;-webkit-tap-highlight-color:transparent;flex:0 0 auto;}
  .atl-chip:hover{color:var(--charcoal);border-color:var(--taupe);}
  .atl-chip[aria-pressed="true"]{background:var(--charcoal);color:var(--ivory);border-color:var(--charcoal);}
  .atl-chip--edit{font-family:var(--serif);font-style:italic;font-size:.98rem;letter-spacing:0;padding:.26rem .85rem;}
  .atl-track{transition:opacity .25s ease;}
  .atl-track.is-swapping{opacity:0;}
  .atl-empty{display:none;text-align:center;padding:clamp(3rem,9vh,6.5rem) 1.5rem;}
  .atl-empty.show{display:block;}
  .atl-empty p{font-family:var(--serif);font-style:italic;font-size:clamp(1.1rem,2.4vw,1.45rem);color:var(--taupe);margin:0;}
  @media(max-width:720px){
    .atl-filter{padding:0 1rem;}
    .atl-filter__row{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:.7rem;}
    .atl-filter__row::-webkit-scrollbar{display:none;}
    .atl-filter__chips{flex-wrap:nowrap;}
    .atl-filter__label{position:sticky;left:0;background:var(--ivory);padding-right:.3rem;z-index:1;}
  }

/* ---- Rome (dark) theme ---- */
.atelier--dark{background:radial-gradient(120% 80% at 50% -10%, rgba(60,42,22,.45), transparent 60%), var(--black);}
.atelier--dark .atl-eyebrow,.atelier--dark .atl-lede,.atelier--dark .atl-caption__by,.atelier--dark .atl-caption__count,.atelier--dark .atl-filter__label,.atelier--dark .atl-filter__clear,.atelier--dark .atl-hint{color:var(--limestone);}
.atelier--dark .atl-title,.atelier--dark .atl-caption__name,.atelier--dark .atl-filter__result{color:var(--ivory);}
.atelier--dark .atl-stage::before{background:linear-gradient(to right,var(--black),transparent);}
.atelier--dark .atl-stage::after{background:linear-gradient(to left,var(--black),transparent);}
.atelier--dark .atl-nav button{color:var(--ivory);border-color:rgba(216,195,165,.4);}
.atelier--dark .atl-nav button:hover{background:var(--ivory);color:var(--black);border-color:var(--ivory);}
.atelier--dark .atl-chip{color:var(--limestone);border-color:rgba(216,195,165,.35);}
.atelier--dark .atl-chip:hover{color:var(--ivory);border-color:var(--ivory);}
.atelier--dark .atl-chip[aria-pressed="true"]{background:var(--ivory);color:var(--black);border-color:var(--ivory);}
.atelier--dark .atl-filter__row{border-top-color:rgba(216,195,165,.18);}
.atelier--dark .atl-sw[aria-pressed="true"]{outline-color:var(--ivory);}
.atelier--dark .atl-empty p{color:var(--limestone);}
.atelier--dark .atl-progress{background:rgba(216,195,165,.28);}
@media(max-width:720px){.atelier--dark .atl-filter__label{background:var(--black);}}