/* about-fx — About 페이지 섹션 (about-fx.js 짝)
   1 크게 보기  2 학술 기록 연도 타임라인  3 History 시대 스테퍼  4 Clinic Tour 시네마 갤러리
   움직이는 것은 transform·opacity 뿐 — 자리와 크기는 처음 그대로 둔다. */

/* ── 1. 크게 보기(라이트박스) ─────────────────────────────── */
.dlb{border:0;padding:0;margin:0;width:100%;max-width:none;height:100%;max-height:none;background:transparent;overflow:hidden}
.dlb::backdrop{background:rgba(18,16,20,.88)}
.dlb[open]{display:grid;place-items:center;animation:dlbIn .35s cubic-bezier(.16,1,.3,1)}
@keyframes dlbIn{from{opacity:0}to{opacity:1}}
.dlb__fig{margin:0;display:flex;flex-direction:column;align-items:center;gap:16px;max-width:min(1120px,88vw)}
.dlb__img{max-width:100%;max-height:78vh;object-fit:contain;border-radius:10px;background:#fff;box-shadow:0 40px 90px -30px rgba(0,0,0,.6);
  opacity:0;transform:scale(.985);transition:opacity .35s ease,transform .5s cubic-bezier(.16,1,.3,1)}
.dlb__img.is-on{opacity:1;transform:none}
.dlb__cap{color:#fff;font-size:15px;line-height:1.5;text-align:center;opacity:.9}
.dlb__btn{position:fixed;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;
  transition:background-color .2s ease}
.dlb__btn:hover{background:rgba(255,255,255,.24)}
.dlb__close{top:20px;right:20px}
.dlb__nav{top:50%;margin-top:-26px}
.dlb__prev{left:20px}.dlb__next{right:20px}
@media (max-width:767px){.dlb__nav{top:auto;bottom:20px;margin:0}.dlb__prev{left:calc(50% - 64px)}.dlb__next{right:calc(50% - 64px)}}

/* ── 2. 학술 기록 — 연도 타임라인(about/doctor) ─────────────── */
.dza{margin-top:var(--sp-block)}
.dza__head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-stack);flex-wrap:wrap}
.dza__stats{display:flex;gap:44px;margin:0}
.dza__stats div{display:flex;flex-direction:column-reverse;gap:4px}
.dza__stats dt{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-tertiary)}
.dza__stats dd{margin:0;font-family:var(--font-numeric);font-size:44px;line-height:1;color:var(--brand)}
.dza__rail{margin-top:var(--sp-stack);overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;cursor:grab;outline:none;padding:6px 2px 34px}
.dza__rail::-webkit-scrollbar{display:none}
.dza__rail.is-drag{cursor:grabbing;scroll-snap-type:none}
.dza__rail.is-drag .dza__card{pointer-events:none}
.dza__rail:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:12px}
.dza__track{position:relative;display:flex;gap:26px;margin:0;padding:0;list-style:none;width:max-content}
/* 시간선 — 바탕 회색 위로 핑크가 지금 해까지 차오른다(scaleX) */
.dza__track::before,.dza__track::after{content:"";position:absolute;left:0;right:0;top:61px;height:2px;border-radius:2px}
.dza__track::before{background:var(--line-soft)}
.dza__track::after{background:var(--brand);transform-origin:left;transform:scaleX(var(--tl,0));transition:transform 1s cubic-bezier(.16,1,.3,1)}
.dza__item{position:relative;width:300px;flex:none;scroll-snap-align:start;display:flex;flex-direction:column}
.dza__year{display:block;height:44px;font-family:var(--font-numeric);font-size:34px;line-height:44px;color:var(--text-primary);
  transform-origin:left bottom;transition:color .4s ease,transform .6s cubic-bezier(.16,1,.3,1)}
.dza__node{position:relative;display:block;width:9px;height:9px;margin:13px 0 22px 1px;border-radius:50%;background:var(--line-mid);z-index:1;
  transition:background-color .4s ease,transform .6s cubic-bezier(.16,1,.3,1)}
.is-year .dza__node{width:15px;height:15px;margin:10px 0 19px -2px;background:#fff;border:3px solid var(--line-mid)}
.dza__item.is-active .dza__year{color:var(--brand);transform:scale(1.08)}
.dza__item.is-active .dza__node{background:var(--brand);transform:scale(1.3)}
.dza__item.is-active.is-year .dza__node{background:#fff;border-color:var(--brand);box-shadow:0 0 0 6px rgba(255,10,108,.15)}
.dza__card{display:block;text-align:left;border-radius:14px;transition:transform .7s cubic-bezier(.16,1,.3,1)}
.dza__mat{position:relative;display:block;padding:12px;background:#fff;border:1px solid #ececec;border-radius:12px;box-shadow:0 18px 40px -26px rgba(0,0,0,.35)}
.dza__mat::after{content:"";position:absolute;inset:-1px;border-radius:12px;box-shadow:0 30px 60px -30px rgba(196,0,78,.55),0 0 0 1px rgba(255,10,108,.25);
  opacity:0;transition:opacity .6s ease;pointer-events:none}
.dza__mat img{display:block;width:100%;aspect-ratio:1000/725;object-fit:cover;border-radius:4px;background:var(--surface-muted)}
.dza__meta{display:flex;flex-direction:column;gap:2px;margin-top:14px}
.dza__y{font-size:14px;font-weight:700;color:var(--brand)}
.dza__name{font-size:var(--fs-16);line-height:1.45;color:var(--text-secondary);word-break:keep-all;transition:color .4s}
.dza__item.is-active .dza__card{transform:translateY(-6px)}
.dza__item.is-active .dza__mat::after{opacity:1}
.dza__item.is-active .dza__name{color:var(--text-primary)}
@media (hover:hover){
  .dza__card:hover{transform:translateY(-6px)}
  .dza__card:hover .dza__mat::after{opacity:1}
  .dza__card:hover .dza__name{color:var(--text-primary)}
}
.dza__card:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.dza__ctrl{display:flex;align-items:center;gap:20px;margin-top:6px}
.dza__arw{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;border:1px solid var(--line-soft);color:var(--text-secondary);
  background:#fff;transition:color .25s,border-color .25s,opacity .25s}
.dza__arw:hover{color:var(--brand);border-color:var(--brand)}
.dza__arw[disabled]{opacity:.35;pointer-events:none}
.dza__bar{position:relative;flex:1;height:2px;background:var(--line-soft);border-radius:2px;overflow:hidden}
.dza__bar span{position:absolute;inset:0;background:var(--brand);transform-origin:left;transform:scaleX(var(--p,0))}
@media (max-width:767px){
  .dza__stats{gap:28px}.dza__stats dd{font-size:32px}
  .dza__item{width:72vw}
  .dza__year{font-size:28px}
}
@media (prefers-reduced-motion:reduce){.dza__track::after,.dza__year,.dza__node,.dza__card{transition:none!important}}

/* ── 3. History — 시대 스테퍼(about/doctor/history) ────────── */
.dha__axis{position:relative;height:92px;margin:0 60px}
.dha__line{position:absolute;left:0;right:0;top:30px;height:2px;background:var(--line-soft);border-radius:2px}
.dha__fill{position:absolute;inset:0;background:var(--brand);transform-origin:left;transform:scaleX(var(--f,0));transition:transform .9s cubic-bezier(.16,1,.3,1)}
.dha__gap{position:absolute;left:20%;top:44px;transform:translateX(-50%);font-size:13px;letter-spacing:.04em;color:var(--text-tertiary);white-space:nowrap}
.dha__gap i{position:absolute;left:50%;top:-24px;width:18px;height:14px;margin-left:-9px;background:var(--surface);
  background-image:linear-gradient(115deg,transparent 42%,var(--line-mid) 42% 50%,transparent 50%),linear-gradient(115deg,transparent 62%,var(--line-mid) 62% 70%,transparent 70%)}
.dha__node{position:absolute;left:var(--p);top:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:12px;padding:0 6px}
.dha__node::before{content:"";order:1;height:11px}
.dha__dot{order:2;display:block;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid var(--line-mid);
  transition:border-color .3s,background-color .3s,transform .5s cubic-bezier(.16,1,.3,1)}
.dha__lab{order:3;font-size:15px;font-weight:600;color:var(--text-tertiary);white-space:nowrap;transition:color .3s}
.dha__node.is-past .dha__dot{border-color:var(--brand);background:var(--brand)}
.dha__node[aria-selected="true"] .dha__dot{border-color:var(--brand);background:#fff;box-shadow:0 0 0 6px rgba(255,10,108,.14);transform:scale(1.35)}
.dha__node[aria-selected="true"] .dha__lab{color:var(--brand)}
.dha__node:hover .dha__lab{color:var(--text-primary)}
.dha__node:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:8px}
.dha__panels{display:grid;margin-top:var(--sp-stack)}
.dha__panel{grid-area:1/1;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.6fr);gap:var(--sp-stack);align-items:start;
  padding:64px 64px 60px;border-radius:28px;background:linear-gradient(135deg,var(--brand-tint-2) 0%,#fff 70%);box-shadow:inset 0 0 0 1px rgba(255,10,108,.08);
  opacity:0;visibility:hidden;transform:translate3d(28px,0,0);will-change:opacity,transform;
  transition:opacity .55s ease,transform .8s cubic-bezier(.16,1,.3,1),visibility 0s .8s}
.dha__panel.is-on{opacity:1;visibility:visible;transform:none;transition:opacity .7s ease .1s,transform .9s cubic-bezier(.16,1,.3,1) .1s,visibility 0s}
.dha__num{display:block;font-family:var(--font-numeric);font-size:150px;line-height:.9;color:var(--brand);opacity:.18}
.dha__when{margin-top:18px;font-size:var(--fs-20);font-weight:700;color:var(--brand)}
.dha__title{font-size:var(--fs-40);font-weight:700;line-height:1.25;letter-spacing:var(--ls-tight);color:var(--text-primary);word-break:keep-all}
.dha__text{margin-top:20px;font-size:var(--fs-18);line-height:1.8;color:var(--text-secondary);word-break:keep-all}
.dha__link{display:inline-flex;align-items:center;gap:8px;margin-top:28px;padding:12px 20px;border-radius:var(--radius-pill);border:1px solid var(--brand);
  color:var(--brand);font-weight:600;font-size:15px;transition:background-color .25s,color .25s}
.dha__link:hover{background:var(--brand);color:#fff}
.dha__ctrl{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:28px}
.dha__arw{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;border:1px solid var(--line-soft);color:var(--text-secondary);transition:color .25s,border-color .25s}
.dha__arw:hover{color:var(--brand);border-color:var(--brand)}
.dha__count{font-size:14px;color:var(--text-tertiary)}.dha__count b{font-family:var(--font-numeric);font-weight:400;font-size:20px;color:var(--text-primary)}
@media (max-width:1023px){
  .dha__axis{margin:0 34px}
  .dha__panel{grid-template-columns:1fr;gap:10px;padding:40px 32px}
  .dha__num{font-size:96px}
}
@media (max-width:767px){
  .dha{overflow-x:clip}
  .dha__axis{margin:0 16px;height:80px}
  .dha__lab{font-size:12px}
  .dha__node:not([aria-selected="true"]) .dha__lab{opacity:0}
  .dha__gap{font-size:0}
  .dha__panel{padding:28px 22px;border-radius:20px}
  .dha__num{font-size:72px}
}
@media (prefers-reduced-motion:reduce){.dha__panel,.dha__fill{transition:none!important}}

/* ── 4. Clinic Tour — 시네마 갤러리(about/tour) ───────────────
   위 히어로(어두운 사진)와 겹치지 않게 밝은 샌드 바탕. 사진 위 글자만 흰색. */
.dtc{--dtc-dwell:5.5s;background:#f3ece3}
.dtc__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}
.dtc__head .sec-title{margin:0;text-align:left}
.dtc__count{font-size:15px;color:var(--text-tertiary)}.dtc__count b{font-family:var(--font-numeric);font-weight:400;font-size:34px;color:var(--brand);margin-right:6px}
.dtc__wrap{margin-top:var(--sp-stack);outline:none}
.dtc__stage{position:relative;aspect-ratio:1200/508;border-radius:20px;overflow:hidden;background:#e4dbd0;cursor:zoom-in;isolation:isolate;
  box-shadow:0 40px 80px -50px rgba(60,40,20,.55)}
.dtc__slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity 1.2s ease}
.dtc__slide.is-on{opacity:1;z-index:1}
.dtc__slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transform:scale(1);transition:transform 0s linear 1.3s}
.dtc__slide.is-on img{transform:scale(1.07);transition:transform 7s linear}
.dtc__slide.is-narrow img{object-fit:contain}
.dtc__bg{position:absolute;inset:-40px;background-size:cover;background-position:center;filter:blur(36px) brightness(.8);transform:scale(1.1)}
.dtc__stage::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,rgba(0,0,0,.5) 0%,rgba(0,0,0,.08) 45%,transparent 70%),linear-gradient(0deg,rgba(0,0,0,.3),transparent 40%)}
.dtc__title{position:absolute;left:48px;bottom:40px;z-index:3;display:flex;flex-direction:column;gap:6px;color:#fff;pointer-events:none}
.dtc__no{font-size:14px;letter-spacing:.1em;color:rgba(255,255,255,.8)}.dtc__no b{font-family:var(--font-numeric);font-weight:400;font-size:18px;color:#fff}
.dtc__name{font-family:var(--font-display);font-size:var(--fs-60);line-height:1.05;letter-spacing:.06em;text-transform:uppercase;animation:dtcIn .9s cubic-bezier(.16,1,.3,1) both}
@keyframes dtcIn{from{opacity:0;transform:translate3d(0,16px,0)}to{opacity:1;transform:none}}
.dtc__arw{position:absolute;top:50%;z-index:3;display:grid;place-items:center;width:54px;height:54px;margin-top:-27px;border-radius:50%;
  border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(0,0,0,.18);transition:background-color .25s,border-color .25s}
.dtc__arw:hover{background:var(--brand);border-color:var(--brand)}
.dtc__prev{left:22px}.dtc__next{right:22px}
.dtc__strip{position:relative;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:10px;margin:18px 0 0;padding:0;list-style:none}
.dtc__frame{display:flex;flex-direction:column;gap:8px;width:100%;text-align:left;opacity:.5;transition:opacity .35s}
.dtc__frame:hover{opacity:.85}
.dtc__frame.is-on{opacity:1}
.dtc__frame:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.dtc__fimg{display:block;aspect-ratio:4/3;border-radius:6px;overflow:hidden;background:#e4dbd0}
.dtc__fimg img{width:100%;height:100%;object-fit:cover}
.dtc__flab{font-size:12px;line-height:1.3;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dtc__prog{position:relative;display:block;height:2px;background:rgba(60,40,20,.14);border-radius:2px;overflow:hidden}
.dtc__prog i{position:absolute;inset:0;background:var(--brand);transform-origin:left;transform:scaleX(0)}
.dtc__frame.is-on .dtc__prog i{animation:dtcBar var(--dtc-dwell) linear both}
.dtc.is-paused .dtc__frame.is-on .dtc__prog i{animation:none;transform:scaleX(1)}
@keyframes dtcBar{to{transform:scaleX(1)}}
@media (max-width:1023px){
  .dtc__strip{display:flex;overflow-x:auto;scrollbar-width:none;gap:8px}
  .dtc__strip li{flex:none;width:96px}
  .dtc__title{left:28px;bottom:24px}
}
@media (max-width:767px){
  .dtc__stage{aspect-ratio:4/3;border-radius:16px}
  .dtc__name{font-size:30px}
  .dtc__arw{width:40px;height:40px;margin-top:-20px}
  .dtc__prev{left:10px}.dtc__next{right:10px}
  .dtc__title{left:18px;bottom:18px}
  .dtc__strip li{width:80px}
}
@media (prefers-reduced-motion:reduce){.dtc__slide,.dtc__slide img{transition:none!important;transform:none!important}.dtc__prog i{animation:none!important}}