/* ============================================================
   결 스튜디오 — Vale 데모 (v2-style, interior studio)
   Warm paper + charcoal + one teal whisper (#40847D).
   Self-contained: reveals (.rv / .veil-in), reduced-motion safe.
   Media queries live at the END of this file.
   ============================================================ */

/* ---- fonts (self-hosted, shared with root) ---- */
@font-face{font-family:'MaruBuri';src:url('/fonts/MaruBuri-Regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'MaruBuri';src:url('/fonts/MaruBuri-SemiBold.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'MaruBuri';src:url('/fonts/MaruBuri-Bold.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Pretendard';src:url('/fonts/PretendardVariable.woff2') format('woff2-variations');font-weight:45 920;font-display:swap}

:root{
  --paper:rgb(245,241,234);
  --paper-2:rgb(236,230,219);
  --paper-3:rgb(226,218,203);
  --ink:rgb(20,20,20);
  --ink-warm:rgb(33,30,26);
  --ink-soft:rgb(90,85,78);
  --hairline:rgba(33,30,26,.13);
  --teal:#40847D;
  --teal-ink:rgb(46,102,96);
  --f-serif:'MaruBuri',ui-serif,Georgia,serif;
  --f-sans:'Pretendard',system-ui,-apple-system,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --ease-out:cubic-bezier(.22,1,.36,1);
  --gutter:clamp(20px,5vw,72px);
  --maxw:1180px;
}

*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}
html{overflow-x:hidden;scroll-behavior:smooth}
/* the horizontal clip lives on <html> ONLY. Putting overflow-x:hidden on the
   body too (while html is already non-visible) turns the body into its own
   scroll container, and position:sticky children — the strata stage — stop
   pinning entirely. */
body{background:var(--paper);color:var(--ink-warm);font-family:var(--f-sans);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;word-break:keep-all}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;color:inherit}
ol,ul{list-style:none}
::selection{background:var(--teal);color:var(--paper)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;top:-100px;left:16px;z-index:2000;background:var(--ink);color:var(--paper);
  padding:.7em 1.2em;border-radius:8px;font-size:.8rem;transition:top .3s}
.skip:focus{top:16px}

/* ambient grain (matches root) */
.grain{position:fixed;top:-60%;right:-60%;bottom:-60%;left:-60%;width:220%;height:220%;z-index:3;pointer-events:none;
  opacity:.045;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E")}
main,footer{position:relative;z-index:1}

/* ---- reveals ---- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.rv.is-in{opacity:1;transform:none}
.rv.d1{transition-delay:.09s}.rv.d2{transition-delay:.18s}
.veil-in{opacity:0;transform:translateY(14px);filter:blur(6px);
  transition:opacity .9s var(--ease-out),transform .9s var(--ease-out),filter .9s var(--ease-out)}
.veil-in.is-in{opacity:1;transform:none;filter:none}
.veil-in.d1{transition-delay:.12s}.veil-in.d2{transition-delay:.24s}
.veil-in.d3{transition-delay:.36s}.veil-in.d4{transition-delay:.48s}

/* ---- shared furniture ---- */
.section{position:relative;padding:clamp(84px,11vw,150px) var(--gutter)}
.section__head{max-width:var(--maxw);margin:0 auto clamp(40px,5.5vw,72px)}
.eyebrow{font-size:.72rem;font-weight:600;letter-spacing:.3em;color:var(--teal-ink);margin-bottom:20px}
.section__head h2{font-family:var(--f-serif);font-weight:600;line-height:1.22;
  font-size:clamp(1.7rem,4vw,2.8rem);letter-spacing:-.01em}
.lead{margin-top:20px;max-width:52ch;color:var(--ink-soft);font-size:clamp(1rem,1.4vw,1.08rem)}
em{font-style:normal;color:var(--teal-ink)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;background:var(--ink);color:var(--paper);
  font-size:.9rem;font-weight:600;padding:.95em 1.7em;border-radius:100px;border:1px solid var(--ink);cursor:pointer;
  transition:background .35s,border-color .35s,transform .35s var(--ease-out),color .35s}
.btn:hover{background:var(--teal-ink);border-color:var(--teal-ink);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink-warm);border-color:var(--hairline)}
.btn--ghost:hover{background:transparent;color:var(--teal-ink);border-color:var(--teal-ink)}

/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:900;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:16px var(--gutter);background:rgba(245,241,234,.82);backdrop-filter:saturate(1.4) blur(14px);
  border-bottom:1px solid var(--hairline)}
.nav__logo{display:inline-flex;align-items:center;gap:11px}
.mark{width:32px;height:32px;flex:none}
.mark__frame{fill:none;stroke:var(--teal-ink);stroke-width:1.7}
.mark__grain{fill:none;stroke:var(--teal-ink);stroke-width:1.5;stroke-linecap:round;opacity:.55}
.mark__cut{fill:none;stroke:var(--teal-ink);stroke-width:1.7;stroke-linecap:round}
.nav__word{font-family:var(--f-serif);font-size:1.12rem;font-weight:600;letter-spacing:-.01em}
.nav__word b{font-weight:700}
.nav__links{display:flex;align-items:center;gap:clamp(16px,2.4vw,34px);font-size:.9rem}
.nav__links a{color:var(--ink-soft);transition:color .3s}
.nav__links a:hover{color:var(--ink-warm)}
.nav__cta{background:var(--ink);color:var(--paper)!important;padding:.6em 1.15em;border-radius:100px;font-weight:600;
  transition:background .35s}
.nav__cta:hover{background:var(--teal-ink)}
.nav__menu{display:none;width:44px;height:44px;border:1px solid var(--hairline);border-radius:10px;background:none;
  cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav__menu span{width:18px;height:1.5px;background:var(--ink-warm);transition:transform .3s,opacity .3s}
.nav.is-open .nav__menu span:first-child{transform:translateY(3.25px) rotate(45deg)}
.nav.is-open .nav__menu span:last-child{transform:translateY(-3.25px) rotate(-45deg)}

/* ---- demo pill ---- */
.demo-pill{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(18px + env(safe-area-inset-bottom,0px));
  z-index:940;display:inline-flex;align-items:center;gap:10px;padding:8px 8px 8px 14px;border-radius:100px;
  background:rgba(20,20,20,.9);color:var(--paper);font-size:.72rem;backdrop-filter:blur(8px);
  box-shadow:0 18px 44px -18px rgba(20,20,20,.6);max-width:calc(100vw - 32px)}
.demo-pill__dot{width:7px;height:7px;border-radius:50%;background:var(--teal);flex:none;box-shadow:0 0 0 0 rgba(64,132,125,.6);
  animation:pulse 2.6s var(--ease-out) infinite}
.demo-pill__label{opacity:.82;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.demo-pill__back{background:rgba(245,241,234,.14);padding:.5em 1em;border-radius:100px;font-weight:600;flex:none;
  transition:background .3s}
.demo-pill__back:hover{background:rgba(245,241,234,.28)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(64,132,125,.5)}70%{box-shadow:0 0 0 8px rgba(64,132,125,0)}100%{box-shadow:0 0 0 0 rgba(64,132,125,0)}}

/* ---- hero ---- */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,64px);align-items:center;
  padding:clamp(48px,7vw,96px) var(--gutter) clamp(70px,9vw,120px);max-width:var(--maxw);margin:0 auto}
.hero__title{font-family:var(--f-serif);font-weight:700;line-height:1.12;letter-spacing:-.02em;
  font-size:clamp(2.5rem,6.4vw,4.4rem);margin:14px 0 0}
.hero__lead{margin-top:24px;max-width:46ch;color:var(--ink-soft);font-size:clamp(1.02rem,1.5vw,1.15rem)}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero__stats{display:flex;flex-wrap:wrap;gap:clamp(24px,4vw,52px);margin-top:44px;
  padding-top:28px;border-top:1px solid var(--hairline)}
.hero__stats b{display:block;font-family:var(--f-serif);font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;letter-spacing:-.01em}
.hero__stats b span{color:var(--teal-ink);font-size:.65em}
.hero__stats small{color:var(--ink-soft);font-size:.8rem}
.hero__img{position:relative;border-radius:18px;overflow:hidden;background:var(--paper-3);
  box-shadow:0 48px 100px -46px rgba(20,20,20,.5)}
.hero__img img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.hero__img figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 20px 15px;color:var(--paper);
  font-size:.76rem;letter-spacing:.02em;background:linear-gradient(transparent,rgba(20,20,20,.6))}

/* ---- hero brand film ----
   The film is baked on the same warm paper as the page, so it sits on
   --paper-2 with no letterbox and no dark chrome. 16:9 is reserved up front
   (width/height + aspect-ratio) so the poster swap costs no layout shift. */
.hero__film{position:relative;border-radius:18px;overflow:hidden;background:var(--paper-2);
  box-shadow:0 48px 100px -46px rgba(20,20,20,.5)}
.hero__film-v{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;background:var(--paper-2)}
.hero__film-v img{width:100%;height:auto}
.hero__film figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 20px 15px;color:var(--paper);
  font-size:.76rem;letter-spacing:.02em;background:linear-gradient(transparent,rgba(20,20,20,.62))}
/* WCAG 2.2.2: a looping autoplay film needs a real pause control */
.hero__film-btn{position:absolute;top:14px;right:14px;width:34px;height:34px;display:grid;place-items:center;
  border:0;border-radius:50%;cursor:pointer;background:rgba(20,20,20,.55);color:var(--paper);
  backdrop-filter:blur(6px);opacity:.55;transition:opacity .3s,background .3s}
.hero__film:hover .hero__film-btn,.hero__film-btn:focus-visible{opacity:1;background:rgba(20,20,20,.78)}
.hero__film-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linejoin:round}
.hero__film-btn .ic-play{fill:currentColor;stroke:none;display:none}
.hero__film.is-paused .hero__film-btn{opacity:1}
.hero__film.is-paused .ic-pause{display:none}
.hero__film.is-paused .ic-play{display:block}

/* ---- work / portfolio ---- */
.proj-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.4vw,30px)}
.proj{background:#fff;border:1px solid var(--hairline);border-radius:16px;overflow:hidden;
  box-shadow:0 20px 50px -34px rgba(20,20,20,.4);transition:transform .5s var(--ease-out),box-shadow .5s var(--ease-out)}
.proj:hover{transform:translateY(-5px);box-shadow:0 34px 66px -34px rgba(20,20,20,.45)}
.proj__img{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-3)}
.proj__img img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease-out)}
.proj:hover .proj__img img{transform:scale(1.05)}
.proj__tag{position:absolute;top:12px;left:12px;background:rgba(20,20,20,.78);color:var(--paper);
  font-size:.68rem;font-weight:600;padding:.35em .8em;border-radius:100px;backdrop-filter:blur(4px)}
.proj__body{padding:18px 20px 22px}
.proj__body h3{font-family:var(--f-serif);font-size:1.18rem;font-weight:600;display:flex;align-items:baseline;
  justify-content:space-between;gap:10px}
.proj__body h3 span{font-family:var(--f-sans);font-size:.78rem;font-weight:600;color:var(--teal-ink);flex:none}
.proj__body p{margin-top:8px;color:var(--ink-soft);font-size:.9rem}
.proj__meta{display:inline-block;margin-top:14px;font-size:.74rem;letter-spacing:.03em;color:var(--ink-soft);
  padding-top:12px;border-top:1px solid var(--hairline);width:100%}

/* ---- process ---- */
.steps{max-width:var(--maxw);margin:0 auto;border-top:1px solid var(--hairline)}
.steps li{display:flex;align-items:flex-start;gap:clamp(18px,3vw,44px);padding:clamp(22px,3vw,32px) 0;
  border-bottom:1px solid var(--hairline)}
.steps__n{font-family:var(--f-serif);font-size:clamp(1.2rem,2vw,1.6rem);font-weight:600;color:var(--teal-ink);
  flex:none;width:2.2em}
.steps li div{flex:1;min-width:0}
.steps li b{font-family:var(--f-serif);font-size:1.2rem;font-weight:600}
.steps li p{margin-top:6px;color:var(--ink-soft);font-size:.94rem;max-width:52ch}
.steps__when{flex:none;align-self:center;font-size:.76rem;font-weight:600;color:var(--ink-warm);
  background:var(--paper-2);padding:.5em 1em;border-radius:100px;white-space:nowrap}

/* ---- pricing ---- */
.price-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px)}
.price{position:relative;background:#fff;border:1px solid var(--hairline);border-radius:18px;
  padding:clamp(26px,3vw,38px) clamp(22px,2.4vw,30px);display:flex;flex-direction:column}
.price--feat{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.price__badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--teal);color:var(--paper);
  font-size:.66rem;font-weight:600;padding:.4em .9em;border-radius:100px;white-space:nowrap}
.price__size{font-size:.82rem;font-weight:600;letter-spacing:.06em;color:var(--teal-ink)}
.price--feat .price__size{color:#8fd3c9}
.price__num{font-family:var(--f-serif);font-size:clamp(1.9rem,3.2vw,2.5rem);font-weight:700;letter-spacing:-.01em;margin:10px 0 4px}
.price__num small{font-size:.42em;font-weight:600;color:var(--ink-soft)}
.price--feat .price__num small{color:rgba(245,241,234,.6)}
.price p{color:var(--ink-soft);font-size:.86rem}
.price--feat p{color:rgba(245,241,234,.7)}
.price ul{margin-top:22px;padding-top:20px;border-top:1px solid var(--hairline);display:flex;flex-direction:column;gap:11px}
.price--feat ul{border-color:rgba(245,241,234,.18)}
.price li{position:relative;padding-left:22px;font-size:.9rem;color:var(--ink-warm)}
.price--feat li{color:rgba(245,241,234,.92)}
.price li:before{content:"";position:absolute;left:0;top:.5em;width:11px;height:6px;border-left:1.6px solid var(--teal);
  border-bottom:1.6px solid var(--teal);transform:rotate(-45deg)}
.price-foot{max-width:var(--maxw);margin:clamp(26px,3vw,40px) auto 0;font-size:.8rem;color:var(--ink-soft);text-align:center}

/* ---- consult ---- */
.consult{background:var(--paper-2)}
.consult__inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 1.05fr;
  gap:clamp(34px,5vw,72px);align-items:center}
.consult__intro h2{font-family:var(--f-serif);font-weight:600;line-height:1.22;font-size:clamp(1.7rem,3.6vw,2.6rem)}
.consult__form{background:var(--paper);border:1px solid var(--hairline);border-radius:20px;
  padding:clamp(24px,3vw,38px);display:grid;grid-template-columns:1fr 1fr;gap:16px;
  box-shadow:0 40px 90px -50px rgba(20,20,20,.4)}
.consult__form .f{display:flex;flex-direction:column;gap:7px}
.consult__form label{font-size:.78rem;font-weight:600;color:var(--ink-soft)}
.consult__form input{border:1px solid var(--hairline);border-radius:10px;padding:.85em 1em;font-family:inherit;
  font-size:.92rem;color:var(--ink-warm);background:#fff;transition:border-color .3s}
.consult__form input:focus{outline:none;border-color:var(--teal)}
.consult__form .btn{grid-column:1/-1;margin-top:4px}
.consult__note{grid-column:1/-1;font-size:.74rem;color:var(--ink-soft);text-align:center}
.consult__note.is-ok{color:var(--teal-ink);font-weight:600}

/* ---- footer ---- */
.footer{border-top:1px solid var(--hairline);padding:clamp(48px,6vw,84px) var(--gutter) 40px;background:var(--paper)}
.footer__top{max-width:var(--maxw);margin:0 auto;display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;flex-wrap:wrap;padding-bottom:clamp(26px,3.5vw,44px);border-bottom:1px solid var(--hairline)}
.footer__tag{font-family:var(--f-serif);font-size:1.05rem;color:var(--ink-soft)}
.footer__note{max-width:var(--maxw);margin:0 auto;padding-top:26px;font-size:.82rem;color:var(--ink-soft);line-height:1.75}
.footer__note b{color:var(--ink-warm)}
.footer__note a{color:var(--teal-ink);border-bottom:1px solid rgba(46,102,96,.35)}
.footer__biz{margin-top:10px;font-size:.76rem;opacity:.85}
.footer__cta{display:inline-block;max-width:var(--maxw);margin:clamp(22px,3vw,34px) auto 0;font-size:.9rem;
  font-weight:600;color:var(--teal-ink);transition:color .3s}
.footer__cta:hover{color:var(--ink-warm)}

/* ---- chatbot (matches root aesthetic) ---- */
.bot{position:fixed;right:clamp(16px,3vw,34px);bottom:calc(clamp(16px,3vw,34px) + env(safe-area-inset-bottom,0px));
  z-index:950;display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.bot__fab{width:58px;height:58px;border-radius:50%;background:var(--ink);border:0;cursor:pointer;position:relative;
  box-shadow:0 18px 44px -14px rgba(20,20,20,.55);transition:transform .5s var(--ease-out),background .4s}
.bot__fab:hover{transform:scale(1.06);background:var(--teal-ink)}
.bot__fab svg{position:absolute;inset:0;margin:auto;width:25px;height:25px;fill:none;stroke:var(--paper);
  stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:opacity .3s,transform .4s var(--ease-out)}
.bot__fab .bot__fab-open{fill:var(--paper);stroke:none}
.bot__fab-close{opacity:0;transform:rotate(-90deg)}
.bot.is-open .bot__fab-open{opacity:0;transform:rotate(90deg)}
.bot.is-open .bot__fab-close{opacity:1;transform:none}
.bot__panel{position:absolute;bottom:72px;right:0;width:min(380px,calc(100vw - 32px));
  height:min(560px,calc(100dvh - 140px));display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--hairline);border-radius:18px;overflow:hidden;box-shadow:0 40px 90px -30px rgba(20,20,20,.45);
  transform:translateY(14px) scale(.98);opacity:0;pointer-events:none;visibility:hidden;
  transition:transform .5s var(--ease-out),opacity .4s,visibility 0s .5s}
.bot.is-open .bot__panel{transform:none;opacity:1;pointer-events:auto;visibility:visible;
  transition:transform .5s var(--ease-out),opacity .4s}
.bot__head{background:var(--ink);display:flex;align-items:center;justify-content:space-between;padding:13px 15px}
.bot__id{display:flex;align-items:center;gap:11px;min-width:0}
.bot__avatar{position:relative;width:36px;height:36px;flex:none;border-radius:50%;display:grid;place-items:center;
  background:rgba(245,241,234,.12);border:1px solid rgba(245,241,234,.2);font-family:var(--f-serif);
  font-weight:700;color:var(--paper);font-size:.9rem}
.bot__dot{position:absolute;right:-1px;bottom:-1px;width:10px;height:10px;border-radius:50%;background:var(--teal);
  border:2px solid var(--ink)}
.bot__who strong{display:block;font-size:.8rem;color:var(--paper);white-space:nowrap}
.bot__who small{display:block;color:rgba(245,241,234,.55);font-size:.64rem;margin-top:2px}
.bot__x{width:32px;height:32px;flex:none;border-radius:50%;background:rgba(245,241,234,.1);border:0;cursor:pointer}
.bot__x svg{width:14px;height:14px;fill:none;stroke:rgba(245,241,234,.75);stroke-width:2;stroke-linecap:round}
.bot__x:hover{background:rgba(245,241,234,.2)}
.bot__log{flex:1;overflow-y:auto;padding:18px 18px 6px;display:flex;flex-direction:column;gap:14px}
.msg{max-width:88%;font-size:.8rem;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.msg--bot{background:#fff;color:var(--ink-warm);align-self:flex-start;border:1px solid rgba(33,30,26,.06);
  padding:.8em 1em;border-radius:14px;border-bottom-left-radius:4px;box-shadow:0 4px 14px -8px rgba(33,30,26,.15)}
.msg--bot strong{font-weight:700;color:var(--teal-ink)}
.msg--user{background:var(--ink);color:var(--paper);align-self:flex-end;padding:.8em 1em;border-radius:14px;
  border-bottom-right-radius:4px}
.msg--typing{display:flex;gap:5px;align-self:flex-start;background:#fff;border:1px solid rgba(33,30,26,.06);
  padding:.9em 1em;border-radius:14px;border-bottom-left-radius:4px}
.msg--typing i{width:6px;height:6px;border-radius:50%;background:rgba(33,30,26,.32);animation:blink 1.3s infinite}
.msg--typing i:nth-child(2){animation-delay:.2s}.msg--typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.bot__form{display:flex;gap:8px;padding:12px;align-items:center}
.bot__form input{flex:1;min-width:0;border:1px solid var(--hairline);border-radius:100px;padding:.8em 1.15em;
  font-family:inherit;font-size:.82rem;color:var(--ink-warm);background:#fff}
.bot__form input:focus{outline:none;border-color:var(--teal)}
.bot__form button{width:40px;height:40px;flex:none;border-radius:50%;background:var(--ink);border:0;cursor:pointer;
  display:grid;place-items:center;transition:background .3s}
.bot__form button:hover{background:var(--teal-ink)}
.bot__form button svg{width:18px;height:18px;fill:none;stroke:var(--paper);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.bot__demo{font-size:.64rem;text-align:center;color:var(--ink-soft);padding:0 14px 12px}

/* ============================================================
   Strata — the scroll-scrubbed showstopper
   A tall section whose stage sticks: gyeol.js scrubs 121 WebP frames across a
   canvas as scroll progress moves 0 → 1, so the finished room comes apart into
   마감 → 설비 → 골조. No scroll listeners — an IO-gated rAF loop reads
   getBoundingClientRect. Reduced motion flattens the whole thing (end of file).
   ============================================================ */
.strata{position:relative;height:340vh;background:var(--paper-2)}
.strata__stage{position:sticky;top:0;height:100vh;height:100dvh;overflow:hidden;display:grid;place-items:center}
.strata__canvas{width:100%;height:100%;display:block}
/* the frames are contain-fitted, so paper shows above and below; this just
   deepens it under the captions so the text never sits on the render itself */
.strata__stage:after{content:"";position:absolute;right:0;bottom:0;left:0;height:42%;pointer-events:none;
  background:linear-gradient(to top,var(--paper-2) 14%,rgba(236,230,219,0))}
.strata__head,.strata__captions,.strata__progress{z-index:2}
.strata__head{position:absolute;top:clamp(72px,11vh,118px);left:var(--gutter);right:var(--gutter);
  max-width:var(--maxw);margin:0 auto;pointer-events:none}
.strata__head .eyebrow{margin-bottom:10px}
.strata__head h2{font-family:var(--f-serif);font-weight:600;line-height:1.24;color:var(--ink);
  font-size:clamp(1.5rem,3.4vw,2.6rem)}
.strata__captions{position:absolute;left:var(--gutter);bottom:clamp(64px,11vh,112px);width:min(430px,78vw)}
.strata__cap{position:absolute;left:0;bottom:0;width:100%;opacity:0;transform:translateY(16px);
  transition:opacity .5s var(--ease-out),transform .6s var(--ease-out);pointer-events:none}
.strata__cap.is-on{opacity:1;transform:none}
.strata__cap b{display:block;font-family:var(--f-serif);font-weight:600;color:var(--ink);
  font-size:clamp(1.25rem,2.4vw,1.85rem)}
.strata__cap span{display:block;margin-top:8px;font-size:.92rem;color:var(--ink-soft)}
.strata__progress{position:absolute;right:var(--gutter);top:50%;transform:translateY(-50%);
  width:2px;height:min(36vh,280px);background:rgba(33,30,26,.14);border-radius:2px}
.strata__progress i{display:block;width:100%;height:100%;background:var(--teal);
  transform:scaleY(0);transform-origin:top;border-radius:2px;will-change:transform}

/* ============================================================
   Responsive + reduced motion  (media queries — END of file)
   ============================================================ */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:clamp(30px,6vw,60px)}
  .hero__img,.hero__film{order:-1}
  .consult__inner{grid-template-columns:1fr}
  .proj-grid,.price-grid{grid-template-columns:repeat(2,1fr)}
  .price--feat{transform:none}
}
@media(max-width:760px){
  .nav__links{position:fixed;inset:0 0 0 auto;width:min(80vw,300px);flex-direction:column;align-items:flex-start;
    justify-content:center;gap:22px;padding:32px;background:var(--paper);border-left:1px solid var(--hairline);
    transform:translateX(100%);transition:transform .45s var(--ease-out);font-size:1.1rem}
  .nav.is-open .nav__links{transform:none}
  .nav__menu{display:flex}
  .nav__cta{align-self:flex-start}
  .proj-grid,.price-grid{grid-template-columns:1fr;max-width:440px}
  .consult__form{grid-template-columns:1fr}
  .steps li{flex-wrap:wrap;gap:12px 18px}
  .steps__when{align-self:flex-start;margin-left:calc(2.2em + 18px)}
  .demo-pill__label{display:none}
  /* a portrait viewport contain-fits the 16:9 frames small, so the scrub needs
     less runway and the captions need the room the progress rail was using */
  .strata{height:250vh}
  .strata__captions{width:calc(100% - var(--gutter) * 2)}
  .strata__progress{display:none}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv,.veil-in{opacity:1!important;transform:none!important;filter:none!important;transition:none}
  .grain{animation:none}
  .demo-pill__dot{animation:none}
  .msg--typing i{animation:none;opacity:.5}
  .proj:hover{transform:none}
  .proj:hover .proj__img img{transform:none}
  .btn:hover{transform:none}
  /* the film never autoplays here (gyeol.js pauses it); keep the way to start
     it visible instead of hiding it behind hover */
  .hero__film-btn{opacity:1}
  /* strata: no scrub and no pin — a still of the finished room with all four
     층위 spelled out underneath, so the section still says what it says */
  .strata{height:auto}
  /* a column, not the pinned grid — align-items:stretch is what keeps the
     copy full-width instead of inheriting the stage's place-items:center */
  .strata__stage{position:relative;height:auto;overflow:visible;
    display:flex;flex-direction:column;align-items:stretch;
    padding:clamp(64px,9vw,120px) var(--gutter);max-width:var(--maxw);margin:0 auto}
  .strata__stage:after{display:none}
  .strata__canvas{height:auto;aspect-ratio:16/9;border-radius:14px}
  /* heading before the picture: the canvas is first in the DOM because the
     scrubbed version needs it underneath everything */
  .strata__head{order:-1;position:static;padding:0;margin:0 0 clamp(24px,4vw,40px)}
  .strata__captions{position:static;width:auto;margin-top:clamp(28px,4vw,44px);
    display:grid;gap:22px}
  .strata__cap{position:static;opacity:1;transform:none;transition:none}
  .strata__progress{display:none}
}
