/* drcatherinechow.com homepage atlas and chapters (10 Oct 2026). Homepage only. From the approved prototype (src/raw/test). Hidden start states are gated on html.ux. */

/* ── shared section heads ─────────────────────────────────────────── */
.sec-head{max-width:58ch;margin-bottom:36px}
.sec-head h2,.ct-head h2{font-size:clamp(2rem,1.2rem + 2.6vw,3.2rem);margin-top:10px}
.sec-lede{margin-top:14px;color:var(--ink-soft);max-width:56ch}


/* ── the atlas ────────────────────────────────────────────────────── */
.atlas-sec{padding-block:84px 70px;background:var(--ivory)}
.plate{margin:0;position:relative}
.plate-in{position:relative;aspect-ratio:16/10;background:#FDFAF4;border:1px solid var(--gold-line);overflow:hidden}
.plate-in::before{content:'';position:absolute;inset:9px;border:1px solid rgba(216,195,160,.55);pointer-events:none;z-index:3}
.plate-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;mix-blend-mode:multiply}
.plate-cap{margin-top:12px;font-size:.78rem;color:var(--ink-soft);font-style:italic;letter-spacing:.01em}
.plate-cap span{font-style:normal;font-weight:700;letter-spacing:.2em;text-transform:uppercase;font-size:.66rem;color:var(--gold-ink);margin-right:8px}
.hotspots{position:absolute;inset:0;z-index:4}
.hs{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);background:none;border:0;padding:0;margin:0;font:inherit;color:var(--ink);cursor:pointer;width:44px;height:44px;display:flex;align-items:center;justify-content:center}
.hs-dot{position:relative;width:26px;height:26px;border-radius:50%;background:rgba(251,246,241,.92);border:1px solid var(--ink);display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 4px rgba(251,246,241,.5);transition:background .25s,color .25s,transform .25s var(--ease)}
.hs-dot i{font-family:var(--font-display);font-style:normal;font-size:.62rem;line-height:1;letter-spacing:.02em}
.hs-dot::after{content:'';position:absolute;inset:-7px;border-radius:50%;border:1px solid var(--gold);opacity:0;transform:scale(.7)}
.hs:hover .hs-dot,.hs:focus-visible .hs-dot,.hs.on .hs-dot{background:var(--ink);color:var(--ivory);transform:scale(1.12)}
.hs.on .hs-dot::after{opacity:1;transform:scale(1);transition:opacity .4s,transform .5s var(--ease)}
.hs-lab{position:absolute;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:.66rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);text-shadow:0 0 6px #FDFAF4,0 0 6px #FDFAF4,0 0 10px #FDFAF4;pointer-events:none}
.hs[data-side=r] .hs-lab{left:calc(50% + 21px)}
.hs[data-side=l] .hs-lab{right:calc(50% + 21px)}
.leader{position:absolute;inset:0;width:100%;height:100%;z-index:2;pointer-events:none;overflow:visible}
.leader path{fill:none;stroke:var(--ink);stroke-width:1;stroke-dasharray:1;stroke-dashoffset:1;opacity:0}
.leader circle{fill:var(--ink);opacity:0}
.leader.draw path{opacity:.8;stroke-dashoffset:0;transition:stroke-dashoffset .7s var(--ease),opacity .2s}
.leader.draw circle{opacity:.8;transition:opacity .2s .5s}
.acards{position:absolute;left:67%;right:3.2%;top:0;bottom:0;z-index:5;pointer-events:none}
.acard{position:absolute;left:0;right:0;top:var(--top,50%);transform:translateY(-50%);background:rgba(255,255,255,.96);border:1px solid var(--border);border-radius:14px;padding:20px 22px 20px;box-shadow:0 26px 50px -30px rgba(35,39,58,.5);pointer-events:auto;opacity:0;visibility:hidden;transition:opacity .35s,visibility 0s .35s}
.acard.on{opacity:1;visibility:visible;transition:opacity .35s,visibility 0s}
.acard[hidden]{display:block}
.acard.idle{background:none;border:0;box-shadow:none;padding:0;opacity:1;visibility:visible;top:50%;transition:opacity .3s}
.acards.has-on .acard.idle{opacity:0;visibility:hidden}
.ac-num{display:block;font-size:.66rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-ink)}
.ac-h{font-size:1.5rem;margin-top:6px}
.ac-when{margin-top:8px;font-size:.92rem;color:var(--ink-soft);line-height:1.5}
.ac-fine{margin-top:12px;font-size:.82rem;color:var(--ink-soft)}
.ac-fine a{color:var(--rose-ink)}
.ac-n{margin-top:12px;font-size:.78rem;color:var(--ink-soft);letter-spacing:.04em}
.ac-n b{font-family:var(--font-display);font-weight:400;font-size:1.5rem;color:var(--ink);margin-right:4px}
.ac-list{list-style:none;margin:10px 0 0;padding:0;border-top:1px solid var(--border)}
.ac-list li{font-size:.84rem;line-height:1.4;padding:8px 0;border-bottom:1px solid var(--border);color:var(--ink)}
.ac-go{display:inline-block;margin-top:14px;font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;color:var(--ink);padding:9px 18px;border:1px solid var(--ink);border-radius:100px;transition:background .2s,color .2s}
.ac-go:hover,.ac-go:focus-visible{background:var(--ink);color:var(--ivory)}

@media (max-width:820px){
  .atlas-sec{padding-block:56px 40px}
  .plate-in{margin-inline:-28px;border-inline:0}
  .plate-in::before{inset:6px}
  .acards,.hs-lab,.leader{display:none}
    .hs{width:40px;height:40px}
  .hs-dot{width:20px;height:20px;box-shadow:0 0 0 3px rgba(251,246,241,.5)}
  .hs-dot i{font-size:.5rem}
  .plate-cap{margin-top:10px}
}


/* reveal of the spots */
.ux .hs-lab{opacity:0;transition:opacity .9s var(--ease) calc(.5s + var(--n,0) * .14s)}
.ux .hs{opacity:0;transition:opacity .6s var(--ease) calc(.25s + var(--n,0) * .14s)}
.ux .atlas.in .hs,.ux .atlas.in .hs-lab{opacity:1}
.hs.on .hs-lab{opacity:0!important}
.hs.on .hs-lab{transition-delay:0s!important;transition-duration:.15s!important}

.anat{position:absolute;inset:0;width:100%;height:100%;z-index:2;pointer-events:none}
.plate-vid{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;mix-blend-mode:multiply;opacity:0;transition:opacity .45s ease;pointer-events:none}
.plate-in.blink .plate-vid{opacity:1}
.plate-in .plate-img{transition:opacity .45s ease}
.plate-in.blink .plate-img{opacity:0}
.tr{stroke-width:12;stroke-opacity:.5;opacity:0}
.tr-c{stroke-width:3.5;stroke-opacity:.95}
/* the topic tiles: the live look, plus a chapter numeral that matches the plate */
.ch-sec{padding-block:20px 84px;background:linear-gradient(180deg,var(--ivory),var(--blush-soft) 160%)}
.ch-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 28px;margin:34px 0 26px;padding-top:28px;border-top:1px solid var(--ink)}
.ch-head .eyebrow{flex:0 0 100%}
.ch-head h2{font-size:clamp(1.8rem,1.1rem + 2vw,2.7rem);margin:0}
.ch-lede{color:var(--ink-soft);max-width:52ch;margin:0}
.gt-rn{position:absolute;left:10px;top:10px;z-index:2;min-width:30px;height:30px;padding:0 9px;border-radius:15px;background:rgba(251,246,241,.93);border:1px solid var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:.82rem;letter-spacing:.04em;color:var(--ink);box-shadow:0 0 0 3px rgba(251,246,241,.45);transition:background .25s,color .25s}
.gt-home{transition:transform .5s var(--ease),border-color .3s,box-shadow .5s var(--ease)}
.gt-home.lift,.gt-home.ping{transform:translateY(-6px);border-color:var(--gold);box-shadow:0 28px 50px -26px rgba(35,39,58,.42),0 0 0 1px var(--gold-line)}
.gt-home.lift .gt-rn,.gt-home.ping .gt-rn,.gt-home:hover .gt-rn,.gt-home:focus-visible .gt-rn{background:var(--ink);color:var(--ivory)}
.gt-home:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
/* spots: ring glow when their tile is hovered */
.hs-dot::before{content:'';position:absolute;inset:-12px;border-radius:50%;background:radial-gradient(circle,rgba(216,195,160,.75),rgba(216,195,160,0) 70%);opacity:0;transform:scale(.5);transition:opacity .4s,transform .6s var(--ease);pointer-events:none}
.hs.hl .hs-dot{background:var(--ink);color:var(--ivory);transform:scale(1.14)}
.hs.hl .hs-dot::before{opacity:1;transform:scale(1.25);animation:hl-pulse 1.8s ease-in-out infinite}
.hs.hl .hs-dot::after{opacity:1;transform:scale(1);transition:opacity .4s,transform .5s var(--ease)}
@keyframes hl-pulse{0%,100%{opacity:.9}50%{opacity:.45}}
.hs-compass .hs-dot svg{display:block}
.leader.draw2 path{opacity:.85;stroke-dashoffset:0;transition:stroke-dashoffset .6s var(--ease),opacity .2s}
.leader.draw2 circle{opacity:.85;transition:opacity .2s .45s}
.leader path{stroke-dasharray:1;stroke-dashoffset:1}
.ux .hs-compass{opacity:0}
.ux .atlas.in .hs-compass{opacity:1}
@media (max-width:820px){
  .ch-sec{padding-block:6px 56px}
  .ch-head{margin-top:26px;padding-top:22px}
  .gt-rn{left:8px;top:8px;min-width:26px;height:26px;font-size:.74rem}
  .leader{display:none}
}
@media (max-width:560px){.gt-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (prefers-reduced-motion:reduce){.plate-vid{display:none}.gt-vid{display:none}}
.atlas-sec{padding-bottom:6px}

/* ── phones and small tablets (11 Oct 2026): a cropped, taller frame; numerals select; chapter card + chip strip ── */
.mcard,.mstrip{display:none}
@media (max-width:820px){
  /* one crop for everything stacked on the plate: image, blink video, tear overlay and spots share this box (plate pixels 2400x1500) */
  .atlas{--cw:1480;--cx:0;--cy:20;--fw:min(100vw,640px)}
  .plate-in{aspect-ratio:1/1;width:var(--fw);margin-inline:calc(50% - var(--fw)/2);border-inline:0;touch-action:pan-y}
  .plate-img,.plate-vid,.anat,.hotspots{position:absolute;inset:auto;max-width:none;width:calc(100% * 2400 / var(--cw));height:calc(100% * 1500 / var(--cw));left:calc(-100% * var(--cx) / var(--cw));top:calc(-100% * var(--cy) / var(--cw))}
  .hs{width:44px;height:44px;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
  .hs-dot{width:28px;height:28px;box-shadow:0 0 0 4px rgba(251,246,241,.55)}
  .hs-dot i{font-size:.7rem}
  .hs-compass .hs-dot svg{width:16px;height:16px}
  .hs-dot::after{inset:-6px;border-width:2px}
  /* no sticky hover on touch: only the selected state lights a spot */
  .hs:hover .hs-dot{background:rgba(251,246,241,.92);color:var(--ink);transform:none}
  .hs.sel .hs-dot,.hs.sel:hover .hs-dot{background:var(--ink);color:var(--ivory);transform:scale(1.14)}
  .hs.sel .hs-dot::after{opacity:1;transform:scale(1);transition:opacity .3s,transform .4s var(--ease)}
  .hs.sel .hs-dot::before{opacity:1;transform:scale(1.25)}
  .hs.sel{z-index:2}
  .ux .atlas.in .hotspots.has-sel .hs:not(.sel),.hotspots.has-sel .hs:not(.sel){opacity:.68}
  /* chapter card, sized to the tallest card so the page never jumps */
  .mcard{display:grid;margin-top:14px}
  .mc{grid-area:1/1;visibility:hidden;opacity:0;background:rgba(255,255,255,.96);border:1px solid var(--border);border-radius:14px;padding:18px 18px 18px;box-shadow:0 22px 44px -32px rgba(35,39,58,.5);transition:opacity .25s,visibility 0s .25s}
  .mc.on{visibility:visible;opacity:1;transition:opacity .3s,visibility 0s}
  .mc .ac-h{font-size:1.4rem;margin-top:4px}
  .mc .ac-when{margin-top:6px;font-size:.9rem}
  .mc .ac-n{margin-top:8px}
  .mc .ac-n b{font-size:1.25rem}
  .mc .ac-list li{padding:7px 0}
  .mc-go{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:14px}
  .mc-go .ac-go{margin-top:0;min-height:44px;display:inline-flex;align-items:center}
  .mc-see{font-size:.84rem;color:var(--rose-ink);text-decoration:underline;text-underline-offset:3px;min-height:44px;display:inline-flex;align-items:center}
  /* chip strip */
  .mstrip{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;margin:12px -20px 0;padding:4px 20px 8px;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  .mstrip::-webkit-scrollbar{display:none}
  .mchip{flex:0 0 auto;scroll-snap-align:center;min-height:44px;display:inline-flex;align-items:center;gap:8px;padding:0 14px 0 6px;border:1px solid var(--gold-line);border-radius:100px;background:#FDFAF4;color:var(--ink);font:inherit;font-size:.82rem;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .25s,color .25s,border-color .25s}
  .mchip b{min-width:30px;height:30px;border-radius:15px;border:1px solid var(--ink);display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-display);font-weight:400;font-size:.76rem;background:rgba(251,246,241,.95);color:var(--ink)}
  .mchip b svg{width:15px;height:15px}
  .mchip[aria-pressed=true]{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
  .mchip[aria-pressed=true] b{border-color:var(--gold);color:var(--ink)}
  .plate-cap{margin-top:6px}
}
@media (min-width:561px) and (max-width:820px){.mstrip{margin-inline:-28px;padding-inline:28px}}