/* ============================================================
   KERN Design Studio
   Palette + type derived from the brand brief; ambient
   background treatment studied from immersive-g.com
   (full-bleed canvas field, fine grain, quiet preloader).
   ============================================================ */

:root{
  --paper:#eceae4;
  --paper-deep:#e3e0d8;
  --ink:#23231f;
  --ink-soft:#4a4943;
  --muted:#8a887f;
  --hair:rgba(35,35,31,.16);
  --hair-faint:rgba(35,35,31,.09);
  --gold:#b2946a;
  --ivory:#eae8e2;
  --char:#252522;
  --gold-lift:#c9ad84;   /* gold that still reads on charcoal */

  --sans:'Jost','Noto Sans TC',system-ui,sans-serif;
  --serif:'Instrument Serif','Noto Serif TC',Georgia,serif;
  --zh:'Noto Sans TC',system-ui,sans-serif;

  --pad:clamp(20px,5vw,80px);
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box}
html{background:var(--paper);scroll-behavior:smooth}
body{
  margin:0;background:transparent;color:var(--ink);
  font-family:var(--sans);font-weight:300;font-size:16px;line-height:1.55;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.is-loading{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5{margin:0;font-weight:400}
p{margin:0}
ol,ul{margin:0;padding:0;list-style:none}
::selection{background:var(--ink);color:var(--paper)}

/* ── ambient background layers ───────────────────────────── */
#field{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:-3;display:block;pointer-events:none;
  /* fallback if WebGL is unavailable */
  background:
    radial-gradient(120% 90% at 18% 8%, #f6f4ee 0%, rgba(246,244,238,0) 60%),
    radial-gradient(90% 80% at 88% 22%, #e6e2d6 0%, rgba(230,226,214,0) 65%),
    radial-gradient(100% 100% at 50% 100%, #e1ddd1 0%, rgba(225,221,209,0) 70%),
    var(--paper);
}
.grain{
  position:fixed;inset:-150%;z-index:-2;pointer-events:none;
  opacity:.34;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  animation:grainShift 7s steps(6) infinite;
}
@keyframes grainShift{
  0%{transform:translate(0,0)}   16%{transform:translate(-3%,-4%)}
  33%{transform:translate(2%,-2%)} 50%{transform:translate(-2%,3%)}
  66%{transform:translate(3%,2%)}  83%{transform:translate(-1%,-3%)}
  100%{transform:translate(0,0)}
}
.vignette{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(110% 80% at 50% 42%, rgba(0,0,0,0) 55%, rgba(60,56,46,.09) 100%);
}

/* ── custom cursor ───────────────────────────────────────── */
/* difference blend so the ring reads on both paper and charcoal */
.cursor{
  position:fixed;top:0;left:0;width:28px;height:28px;border-radius:50%;
  border:1px solid rgba(190,188,180,.85);mix-blend-mode:difference;
  transform:translate3d(-50px,-50px,0);
  z-index:90;pointer-events:none;
  transition:width .4s var(--ease),height .4s var(--ease),
             background .4s var(--ease),opacity .3s;
  opacity:0;
}
.cursor.is-on{opacity:1}
.cursor.is-hot{width:62px;height:62px;background:rgba(120,118,112,.22)}
@media (hover:none),(pointer:coarse){.cursor{display:none}}

/* ── preloader ───────────────────────────────────────────── */
.loader{
  position:fixed;inset:0;z-index:100;background:var(--paper);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity .9s var(--ease),visibility .9s;
}
.loader.is-done{opacity:0;visibility:hidden}
.loader__mark{text-align:center}
.loader__word{
  display:block;font-family:var(--serif);font-size:clamp(42px,7vw,86px);
  letter-spacing:.14em;text-indent:.14em;line-height:1;
  background:linear-gradient(90deg,var(--ink) 0%,var(--ink) var(--fill,0%),rgba(35,35,31,.18) var(--fill,0%));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.loader__sub{
  display:block;margin-top:14px;font-size:10px;letter-spacing:.34em;
  text-transform:uppercase;color:var(--muted);
}
.loader__bar{width:min(220px,42vw);height:1px;background:var(--hair-faint);overflow:hidden}
.loader__bar i{display:block;height:100%;width:0;background:var(--ink)}

/* ── reveal ──────────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(26px);
  transition:opacity 1.1s var(--ease),transform 1.1s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ── header ──────────────────────────────────────────────── */
.hdr{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px var(--pad);
  background:rgba(236,234,228,.72);backdrop-filter:blur(10px) saturate(1.1);
  border-bottom:1px solid transparent;
  transition:border-color .5s var(--ease),padding .5s var(--ease),background .5s var(--ease);
  opacity:0;transform:translateY(-12px);
}
.hdr.ready{opacity:1;transform:none;transition:opacity 1s var(--ease) .2s,transform 1s var(--ease) .2s,border-color .5s,padding .5s,background .5s}
.hdr.stuck{border-color:var(--hair-faint);padding-top:12px;padding-bottom:12px;background:rgba(236,234,228,.88)}
.hdr__logo{display:flex;flex-direction:column;gap:2px;line-height:1}
.hdr__logo-main{font-family:var(--serif);font-size:21px;letter-spacing:.22em;text-indent:.22em}
.hdr__logo-sub{font-size:8.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.hdr__nav{display:flex;gap:clamp(16px,3vw,38px)}
.hdr__nav a{
  display:flex;align-items:baseline;gap:7px;
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  position:relative;padding-bottom:3px;
}
.hdr__nav a em{font-style:normal;font-family:var(--zh);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.hdr__nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--ink);transform:scaleX(0);transform-origin:right;
  transition:transform .5s var(--ease);
}
.hdr__nav a:hover::after{transform:scaleX(1);transform-origin:left}

/* ── shared section furniture ────────────────────────────── */
section{padding-left:var(--pad);padding-right:var(--pad)}
.sec-head{display:flex;align-items:center;gap:16px;margin-bottom:clamp(28px,5vw,56px)}
.sec-head .rule{display:block;width:clamp(28px,5vw,64px);height:1px;background:var(--ink);opacity:.5}
.sec-head h2{font-size:10.5px;letter-spacing:.28em;text-transform:uppercase;color:var(--ink-soft)}
.tag{font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}
.tag--dot{display:flex;align-items:center;gap:9px}
.tag--dot::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.8)}50%{opacity:1;transform:scale(1)}}

/* ── hero ────────────────────────────────────────────────── */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:124px;padding-bottom:44px}
.hero__top{display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding-bottom:clamp(24px,4.5vh,52px)}
.hero__title{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(50px,11vw,152px);line-height:.92;letter-spacing:-.02em;
}
.hero__title .line{display:block;overflow:hidden}
.hero__title .line i{display:block;font-style:normal;transform:translateY(112%);opacity:0}
.ready-hero .hero__title .line i{animation:rise 1.25s var(--ease) both}
.ready-hero .hero__title .line:nth-child(1) i{animation-delay:.1s}
.ready-hero .hero__title .line:nth-child(2) i{animation-delay:.22s}
.ready-hero .hero__title .line:nth-child(3) i{animation-delay:.34s}
@keyframes rise{from{transform:translateY(112%);opacity:0}to{transform:translateY(0);opacity:1}}
.hero__title em{font-style:italic;color:var(--ink-soft)}
.hero__zh{margin-top:18px;font-family:var(--zh);font-size:clamp(15px,2vw,22px);
  letter-spacing:.06em;color:var(--ink-soft)}
.hero__foot{
  margin-top:auto;padding-top:clamp(32px,5.5vh,64px);
  display:flex;align-items:flex-end;justify-content:space-between;gap:clamp(24px,6vw,80px);
}
.hero__lede{max-width:46ch;font-size:clamp(13.5px,1.35vw,16px);line-height:1.7;color:var(--ink-soft)}
.hero__lede span{display:block;margin-top:7px;font-family:var(--zh);color:var(--muted)}
.scroll-cue{display:flex;align-items:center;gap:12px;font-size:10px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--muted);white-space:nowrap}
.scroll-cue__line{display:block;width:1px;height:44px;background:var(--hair);overflow:hidden}
.scroll-cue__line i{display:block;width:100%;height:100%;background:var(--ink);
  transform-origin:top;animation:cue 2.4s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}
  45%{transform:scaleY(1);transform-origin:top}
  55%{transform:scaleY(1);transform-origin:bottom}
  100%{transform:scaleY(0);transform-origin:bottom}}

/* ── approach ────────────────────────────────────────────── */
.approach{padding-top:clamp(72px,11vh,130px);padding-bottom:clamp(72px,11vh,130px)}
.approach__grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:clamp(28px,5vw,72px);align-items:end}
.approach__body{
  font-family:var(--serif);
  font-size:clamp(30px,4.9vw,68px);line-height:1.08;letter-spacing:-.01em;
}
.approach__body em{font-style:italic;color:var(--gold)}
.approach__zh{max-width:30ch;font-family:var(--zh);
  font-size:clamp(13.5px,1.5vw,17px);line-height:1.95;color:var(--muted)}
.approach__facts{margin:clamp(24px,3vw,38px) 0 0;border-top:1px solid var(--hair-faint)}
.approach__facts div{display:flex;flex-direction:column;gap:3px;
  padding:13px 0;border-bottom:1px solid var(--hair-faint)}
.approach__facts dt{font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-soft)}
.approach__facts dd{margin:0;font-size:12.5px;font-family:var(--zh);color:var(--muted)}

/* ── services ────────────────────────────────────────────── */
.services{padding-bottom:clamp(70px,11vh,130px)}
.services__title{
  font-family:var(--serif);font-size:clamp(32px,5vw,66px);line-height:1.02;
  margin-bottom:clamp(36px,6vw,72px);
}
.services__title span{font-family:var(--zh);font-size:.44em;letter-spacing:.14em;color:var(--muted)}
.svc{border-top:1px solid var(--hair)}
.svc__row{
  display:grid;grid-template-columns:minmax(0,40fr) minmax(0,60fr);
  align-items:center;gap:clamp(28px,4vw,64px);
  padding:clamp(40px,5.5vw,84px) 0;border-bottom:1px solid var(--hair);
}
.svc__num{display:block;font-size:11px;letter-spacing:.2em;color:var(--muted);margin-bottom:14px}
.svc__text h4{font-size:clamp(22px,2.9vw,38px);letter-spacing:-.008em;font-weight:400;line-height:1.16}
.svc__text h4 span{display:block;margin-top:4px;font-family:var(--zh);font-size:.6em;color:var(--ink-soft)}
.svc__text p{margin-top:14px;font-size:14px;line-height:1.7;color:var(--muted);max-width:44ch}
.svc__text p span{font-family:var(--zh)}
.svc__price{display:flex;align-items:baseline;gap:11px;margin-top:22px;
  padding-top:16px;border-top:1px solid var(--hair-faint)}
.svc__price span{font-size:9.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
.svc__price strong{font-family:var(--serif);font-size:clamp(24px,2.8vw,36px);font-weight:400;white-space:nowrap}

/* service illustrations — full silhouette, no frame, no crop */
.svc__art{margin:0;overflow:hidden}
.svc__art img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;
  transition:transform 1.6s var(--ease)}
.svc__row:hover .svc__art img{transform:scale(1.018)}
.svc__disclaimer{margin-top:20px;font-size:10px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--muted)}

/* ── ticker ──────────────────────────────────────────────── */
.ticker{
  overflow:hidden;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);
  padding:15px 0;margin:clamp(40px,7vh,90px) 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
}
.ticker__track{display:flex;gap:26px;white-space:nowrap;width:max-content;
  animation:drift 42s linear infinite}
.ticker__track span{font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-soft)}
.ticker__track i{font-style:normal;color:var(--gold);opacity:.7}
@keyframes drift{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── work ────────────────────────────────────────────────── */
.work{padding-bottom:clamp(80px,13vh,160px)}
.work__head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-bottom:clamp(22px,3vw,38px)}
.work__place{font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted)}
.work__name{font-family:var(--serif);font-size:clamp(40px,8vw,110px);letter-spacing:.04em;line-height:1}
.work__shot{margin:0;overflow:hidden;background:var(--paper-deep)}
.work__shot img{width:100%;transition:transform 1.4s var(--ease)}
.work__shot:hover img{transform:scale(1.025)}
.work__split{display:flex;gap:clamp(24px,6vw,90px);justify-content:space-between;flex-wrap:wrap;
  padding:clamp(26px,4vw,48px) 0}
.work__copy{max-width:48ch;font-size:clamp(14px,1.5vw,17px);line-height:1.7;color:var(--ink-soft)}
.work__copy span{display:block;margin-top:8px;font-family:var(--zh);color:var(--muted)}
.work__meta{display:flex;flex-wrap:wrap;gap:clamp(16px,3vw,40px);align-items:flex-start}
.work__meta li{font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-soft);
  padding-top:9px;border-top:1px solid var(--hair)}
.work__meta li span{display:block;margin-top:5px;font-family:var(--zh);letter-spacing:.08em;
  text-transform:none;color:var(--muted)}
.work__pair{display:grid;grid-template-columns:1fr 1fr;gap:clamp(10px,1.6vw,22px)}
.work__pair figure{margin:0;overflow:hidden;background:var(--paper-deep);aspect-ratio:16/10}
.work__pair img{width:100%;height:100%;object-fit:cover;object-position:top center;
  transition:transform 1.4s var(--ease)}
.work__pair figure:hover img{transform:scale(1.03)}
.work__note{margin-top:18px;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* ── closing block: the page's one strong tonal change ───── */
.closing{
  position:relative;overflow:hidden;isolation:isolate;
  background:var(--char);color:var(--ivory);
  --ink:var(--ivory);
  --ink-soft:rgba(234,232,226,.74);
  --muted:rgba(234,232,226,.5);
  --hair:rgba(234,232,226,.2);
  --hair-faint:rgba(234,232,226,.12);
  --art-w:min(56%,880px);
  --art-inset:clamp(12px,2.5vw,44px);
}
/* anchored to the contact block, never over the footer links */
.closing__art{
  position:absolute;right:var(--art-inset);top:0;z-index:-1;
  width:var(--art-w);height:auto;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 36%,#000 96%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 36%,#000 96%,transparent);
  pointer-events:none;
}
/* feathers the plate's top and bottom edges into the charcoal so the
   illustration leaves no visible rectangle seam */
.closing::after{
  content:"";position:absolute;right:var(--art-inset);top:0;z-index:-1;pointer-events:none;
  width:var(--art-w);aspect-ratio:1672/941;
  background:linear-gradient(180deg,
    var(--char) 0, rgba(37,37,34,0) 12%,
    rgba(37,37,34,0) 68%, var(--char) 100%);
}
.closing ::selection{background:var(--ivory);color:var(--char)}

/* ── contact ─────────────────────────────────────────────── */
.contact{padding-top:clamp(74px,12vh,150px);padding-bottom:clamp(80px,13vh,150px)}
.contact > *{max-width:min(100%,46rem)}
.contact__title{font-family:var(--serif);font-size:clamp(38px,7.6vw,104px);line-height:.98;letter-spacing:-.015em}
.contact__title em{font-style:italic;color:var(--gold-lift)}
.contact__zh{margin-top:20px;font-family:var(--zh);font-size:clamp(14px,1.7vw,19px);color:var(--muted)}
.cta{
  display:inline-flex;align-items:center;gap:clamp(14px,2.2vw,26px);
  margin-top:clamp(34px,5vw,56px);padding:18px clamp(22px,2.6vw,30px);
  border:1px solid var(--hair);position:relative;overflow:hidden;
  transition:color .55s var(--ease),border-color .55s var(--ease);
}
.cta::before{
  content:"";position:absolute;inset:0;background:var(--ivory);
  transform:scaleX(0);transform-origin:right;transition:transform .6s var(--ease);
}
.cta:hover{color:var(--char);border-color:var(--ivory)}
.cta:hover::before{transform:scaleX(1);transform-origin:left}
.cta > *{position:relative}
.cta__icon{display:flex;width:26px;height:26px;flex:0 0 auto}
.cta__icon svg{width:100%;height:100%}
.cta__handle{font-family:var(--serif);font-size:clamp(19px,2.4vw,30px);line-height:1}
.cta__arrow{font-size:17px;transition:transform .5s var(--ease);margin-left:2px}
.cta:hover .cta__arrow{transform:translate(4px,-4px)}
.contact__note{margin-top:22px;font-family:var(--zh);font-size:13px;color:var(--muted)}

/* ── footer ──────────────────────────────────────────────── */
.ftr{border-top:1px solid var(--hair-faint);padding:clamp(40px,6vw,68px) var(--pad) 26px}
.ftr__ig{display:inline-flex;align-items:center;gap:9px}
.ftr__ig svg{width:15px;height:15px;flex:0 0 auto;opacity:.8}
.ftr__grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:clamp(24px,4vw,48px)}
.ftr__logo{display:block;font-family:var(--serif);font-size:30px;letter-spacing:.2em;text-indent:.2em}
.ftr__sub{display:block;margin-top:4px;font-size:9px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.ftr__loc{display:block;margin-top:16px;font-size:11px;color:var(--muted)}
.ftr__col h5{font-size:9.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;font-weight:400}
.ftr__col a,.ftr__col span{display:block;font-size:13px;line-height:2;color:var(--ink-soft)}
.ftr__col a:hover{color:var(--ink)}
.ftr__base{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:clamp(36px,5vw,58px);padding-top:18px;border-top:1px solid var(--hair-faint);
  font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.ftr__base em{font-family:var(--serif);font-style:italic;font-size:15px;letter-spacing:0;text-transform:none}

/* ── responsive ──────────────────────────────────────────── */
@media (max-width:860px){
  .ftr__grid{grid-template-columns:1fr 1fr}
  .approach__grid{grid-template-columns:1fr;gap:30px}
}
@media (max-width:768px){
  /* one column: heading and description first, illustration after */
  .svc__row{grid-template-columns:1fr;gap:24px;padding:clamp(32px,7vw,48px) 0}
  .svc__art{order:2}
  /* the sculpture drops below the copy rather than sitting behind it */
  .closing{display:flex;flex-direction:column}
  .contact{order:1;padding-bottom:clamp(48px,8vh,72px)}
  .closing__art{order:2;position:static;z-index:auto;width:100%;display:block;
    -webkit-mask-image:none;mask-image:none}
  .closing::after{display:none}
  .ftr{order:3}
}
@media (max-width:760px){
  .hdr{padding:12px var(--pad)}
  .hdr__nav{gap:16px}
  .hdr__nav a{flex-direction:column;align-items:flex-start;gap:2px;font-size:9.5px;letter-spacing:.14em}
  .hdr__nav a em{font-size:9.5px}
  .hero{padding-top:120px}
  .hero__top{flex-direction:column;align-items:flex-start;gap:8px}
  .hero__foot{flex-direction:column-reverse;align-items:flex-start;gap:26px}
  .work__pair{grid-template-columns:1fr}
  .cta{width:100%;justify-content:space-between}
}
@media (max-width:560px){
  .ftr__grid{grid-template-columns:1fr}
}

/* ── motion preference ───────────────────────────────────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .hero__title .line i{transform:none;opacity:1}
  .grain{animation:none}
}