:root{
  --bg:#f4f3f1; --ink:#0d0d0d; --muted:#8a8a86; --line:rgba(0,0,0,0.16);
  --font:"Helvetica Neue","Inter",-apple-system,BlinkMacSystemFont,Arial,sans-serif;
}
*{ margin:0; padding:0; box-sizing:border-box; }
html,body{
  width:100%; background:var(--bg); color:var(--ink); font-family:var(--font);
  -webkit-font-smoothing:antialiased;
  scrollbar-width:none; -ms-overflow-style:none;        /* hide scrollbar, keep scroll */
}
html::-webkit-scrollbar, body::-webkit-scrollbar{ display:none; width:0; height:0; }
body{ height:350vh; }                                   /* desktop scroll height drives rotation */
a{ color:inherit; text-decoration:none; }

.site-header{ position:fixed; inset:0 0 auto 0; z-index:100005; display:flex; align-items:center;
  justify-content:space-between; padding:1.9em 2.4em; font-size:13px; letter-spacing:0.02em; }
.header-left{ display:flex; align-items:center; gap:3em; }
.brand{ font-weight:600; font-size:16px; letter-spacing:0.06em; }
.brand-dot{ font-size:9px; vertical-align:super; margin-left:2px; }
.nav{ display:flex; gap:2.2em; font-weight:500; }
.nav a{ position:relative; opacity:0.62; transition:opacity .3s ease; }
.nav a.is-active, .nav a:hover{ opacity:1; }
.nav a.is-active::after{ content:""; position:absolute; left:0; bottom:-6px; width:100%; height:1px; background:var(--ink); }
.lang{ display:flex; gap:0.5em; font-weight:500; }
.menu-toggle{ display:none; flex-direction:column; justify-content:center; gap:5px; width:26px; height:18px;
  padding:0; background:none; border:none; cursor:pointer; }
.menu-toggle span{ display:block; width:100%; height:1.5px; background:var(--ink); }
.lang .sep, .lang .muted{ opacity:0.4; }

.corner{ position:fixed; bottom:2.2em; z-index:50; background:none; border:none; cursor:pointer;
  font-family:var(--font); font-size:13px; font-weight:500; letter-spacing:0.02em; color:var(--ink);
  padding-bottom:4px; border-bottom:1px solid var(--ink); transition:opacity .3s ease; }
.corner:hover{ opacity:0.55; }
.corner i{ font-style:normal; margin-left:0.4em; }
.corner--left{ left:2.4em; }
.corner--right{ right:2.4em; }

.scene{ position:fixed; inset:0; overflow:hidden; perspective:1600px; perspective-origin:50% 50%; }
.gallery{ position:absolute; top:50%; left:50%; width:0; height:0; transform-style:preserve-3d; will-change:transform; }

/* CARD = stable hitbox. IMPORTANT: NO backface-visibility:hidden (it would hide half the ring -> "C"/spiral). */
.item{ position:absolute; top:0; left:0; width:78px; height:60px; transform-style:preserve-3d; }
.item-card{ position:absolute; inset:0; transform-style:preserve-3d; pointer-events:none;
  border:1px solid rgba(255,255,255,0.65); transition:box-shadow .4s ease; }
.item-card img{ width:100%; height:100%; object-fit:cover; display:block; filter:saturate(0.92) brightness(0.99); }
.item-card.is-active{ box-shadow:0 6px 16px -10px rgba(0,0,0,0.35); }

.center{ position:absolute; top:43%; left:50%; transform:translate(-50%,-50%); width:min(520px,42vw);
  text-align:center; pointer-events:none; z-index:5; }
.center-eyebrow{ font-size:12px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); margin-bottom:1.4em; }
.center-title{ font-size:clamp(34px,4.4vw,60px); font-weight:500; line-height:1.02; letter-spacing:-0.02em; }
.center-title em{ font-style:italic; font-weight:400; }
.center-sub{ margin-top:1.3em; font-size:14px; color:var(--muted); }
.center-default,.center-project{ transition:opacity .55s ease; }
.center-project{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; opacity:0; }
.center.show-project .center-default{ opacity:0; }
.center.show-project .center-project{ opacity:1; }
.preview-img{ width:380px; height:210px; flex-shrink:0; overflow:hidden; background:#e7e6e3; }
.preview-img img{ width:100%; height:100%; object-fit:cover; }
.preview-cat{ margin-top:1.1em; font-size:12px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); }
.preview-title{ margin-top:0.4em; font-size:clamp(20px,2vw,26px); font-weight:500; letter-spacing:-0.01em; }

.labels{ position:absolute; inset:0; pointer-events:none; }
.label{ position:absolute; transform:translate(-50%,-50%); white-space:nowrap; font-size:14px; font-weight:500;
  letter-spacing:0.01em; pointer-events:auto; opacity:0.85; background:none; border:none; padding:2px 4px;
  cursor:pointer; font-family:var(--font); color:var(--ink); transition:opacity .25s ease; }
.label:hover{ opacity:1; }
.label .ul{ border-bottom:1px solid var(--ink); padding-bottom:2px; }
.label sup{ font-size:10px; color:var(--muted); margin-left:3px; }

.mobile-preview{ display:none; }
.mobile-ring-hitbox{ display:none; }

@media (max-width:768px){
  .mobile-ring-hitbox{ display:block; position:fixed; left:0; right:0; bottom:0; top:50%;
    z-index:20; touch-action:none; pointer-events:auto; }
  body{ height:auto; }
  .scene{ height:100svh; overflow:hidden; }
  .center, .labels{ display:none; }
  .custom-cursor{ display:none !important; }
  .site-header{ padding:1.15em 1em; align-items:center; }
  .nav, .lang{ display:none; }
  .menu-toggle{ display:flex; }
  .corner{ bottom:auto; top:3.6em; font-size:13px; }
  .corner--left{ left:1em; }
  .corner--right{ right:1em; }
  .mobile-preview{ display:block; position:fixed; top:6.2em; left:0; right:0; z-index:6; padding:0 1em; pointer-events:none; }
  .mp-cat{ font-size:10px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); margin-bottom:5px; }
  .mp-title{ font-size:23px; line-height:1.05; font-weight:500; letter-spacing:-0.01em; margin-bottom:14px; }
  .mp-img{ width:100%; aspect-ratio:16/10; overflow:hidden; background:#e7e6e3; }
  .mp-img img{ width:100%; height:100%; object-fit:cover; display:block; }
  .mp-view{ display:inline-block; margin-top:11px; font-size:14px; font-weight:700;
    border-bottom:1px solid var(--ink); padding-bottom:2px; pointer-events:auto; }
  .mp-view i{ font-style:normal; margin-left:0.35em; }
  .cat-strip{ margin-top:16px; display:flex; gap:1.5em; overflow-x:auto; pointer-events:auto;
    scrollbar-width:none; -webkit-overflow-scrolling:touch; padding-bottom:5px; }
  .cat-strip::-webkit-scrollbar{ display:none; }
  .cat-chip{ background:none; border:none; padding:0; cursor:pointer; font-family:var(--font);
    color:var(--ink); font-size:11px; font-weight:500; letter-spacing:0.12em; text-transform:uppercase;
    white-space:nowrap; opacity:0.8; }
  .cat-chip sup{ font-size:9px; color:var(--muted); margin-left:2px; }
}

.custom-cursor{ display:none; }
@media (pointer:fine) and (hover:hover){
  body{ cursor:none; }                                  /* dot replaces the OS cursor */
  .custom-cursor{ display:block; position:fixed; top:0; left:0; width:13px; height:13px;
    border-radius:999px; background:#000; pointer-events:none; z-index:100100; will-change:transform; transition:opacity .3s ease; }
  .custom-cursor.is-hidden{ opacity:0; }
}

body:not(.page-ready) .scene{ opacity:0; }              /* hide ring until fully built+painted */
body.is-locked{ overflow:hidden; }                      /* modal open: pause page scroll */

/* ---------- overlay (grid / filter / info / contact / menu) ---------- */
.ui-overlay{ position:fixed; inset:0; z-index:100000; background:rgba(244,243,241,0.97);
  -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px); display:flex; flex-direction:column; }
.ui-overlay[hidden]{ display:none; }
.ui-overlay-head{ display:flex; align-items:baseline; justify-content:space-between;
  padding:5.4em 2.4em 1.2em; border-bottom:1px solid var(--line); flex-shrink:0; }
.ui-overlay-title{ font-size:13px; font-weight:500; letter-spacing:0.16em; text-transform:uppercase; }
.ui-close, .lb-close{ background:none; border:none; cursor:pointer; font-family:var(--font);
  font-size:13px; font-weight:500; letter-spacing:0.02em; color:var(--ink);
  padding-bottom:3px; border-bottom:1px solid var(--ink); transition:opacity .3s ease; }
.ui-close:hover, .lb-close:hover{ opacity:0.55; }
.ui-overlay-body{ flex:1; overflow-y:auto; padding:2em 2.4em 3em; scrollbar-width:none; }
.ui-overlay-body::-webkit-scrollbar{ display:none; }

.project-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:2.2em 1.6em; }
.grid-item{ background:none; border:none; padding:0; cursor:pointer; text-align:left; font-family:var(--font); color:var(--ink); }
.gi-img{ width:100%; aspect-ratio:16/10; overflow:hidden; background:#e7e6e3; }
.gi-img img{ width:100%; height:100%; object-fit:cover; display:block; filter:saturate(0.92);
  transition:transform .5s ease; }
.grid-item:hover .gi-img img{ transform:scale(1.04); }
.gi-cat{ margin-top:0.9em; font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--muted); }
.gi-title{ margin-top:0.25em; font-size:16px; font-weight:500; letter-spacing:-0.01em; }
.grid-empty{ font-size:14px; color:var(--muted); }

.cat-list{ display:flex; flex-direction:column; align-items:flex-start; gap:0.1em; max-width:560px; }
.cat-item{ background:none; border:none; padding:0.42em 0; cursor:pointer; font-family:var(--font);
  color:var(--ink); font-size:clamp(19px,2.4vw,27px); font-weight:500; letter-spacing:-0.01em;
  display:flex; align-items:baseline; gap:0.5em; opacity:0.85; transition:opacity .25s ease; }
.cat-item:hover{ opacity:1; }
.cat-item sup{ font-size:11px; color:var(--muted); }

.info-block{ max-width:620px; }
.info-block h2{ font-size:clamp(26px,3.2vw,42px); font-weight:500; letter-spacing:-0.02em; line-height:1.08; }
.info-block h2 em{ font-style:italic; font-weight:400; }
.info-block p{ margin-top:1.4em; font-size:15px; line-height:1.65; color:var(--muted); }
.info-block .contact-line{ margin-top:1.8em; font-size:clamp(19px,2.4vw,27px); color:var(--ink);
  display:inline-block; border-bottom:1px solid var(--ink); padding-bottom:3px; }
.menu-list{ display:flex; flex-direction:column; gap:0.3em; padding-top:1em; }
.menu-list a{ font-size:31px; font-weight:500; letter-spacing:-0.01em; }
.menu-lang{ margin-top:2.4em; font-size:13px; color:var(--muted); }

/* ---------- lightbox ---------- */
.lightbox{ position:fixed; inset:0; z-index:100020; background:rgba(244,243,241,0.96);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center; }
.lightbox[hidden]{ display:none; }
.lightbox figure{ display:flex; flex-direction:column; align-items:center; gap:1.1em;
  max-width:min(86vw,1040px); pointer-events:none; }
.lightbox img{ max-width:86vw; max-height:72vh; object-fit:contain; display:block;
  box-shadow:0 34px 90px -30px rgba(0,0,0,0.35); background:#e7e6e3; }
.lightbox figcaption{ display:flex; flex-direction:column; align-items:center; gap:0.25em; text-align:center; }
.lightbox figcaption span{ font-size:11px; letter-spacing:0.16em; text-transform:uppercase; color:var(--muted); }
.lightbox figcaption strong{ font-size:clamp(18px,2vw,24px); font-weight:500; letter-spacing:-0.01em; }
.lb-close{ position:absolute; top:1.9em; right:2.4em; }
.lb-nav{ position:absolute; top:50%; transform:translateY(-50%); width:52px; height:52px;
  border-radius:999px; border:1px solid var(--ink); background:none; color:var(--ink);
  font-size:17px; line-height:1; cursor:pointer; font-family:var(--font);
  transition:background-color .25s ease, color .25s ease; }
.lb-nav:hover{ background:var(--ink); color:var(--bg); }
.lb-prev{ left:2.4em; }
.lb-next{ right:2.4em; }

@media (max-width:768px){
  .ui-overlay-head{ padding:4.6em 1em 1em; }
  .ui-overlay-body{ padding:1.4em 1em 2.4em; }
  .project-grid{ grid-template-columns:1fr 1fr; gap:1.6em 0.9em; }
  .lb-close{ top:1.4em; right:1em; }
  .lb-nav{ width:42px; height:42px; }
  .lb-prev{ left:0.7em; }
  .lb-next{ right:0.7em; }
  .lightbox img{ max-width:92vw; max-height:56vh; }
  .mp-img{ pointer-events:auto; }                       /* tap preview image -> open project */
}

.loading-screen{ position:fixed; inset:0; z-index:999999; background:var(--bg);
  display:flex; align-items:center; justify-content:center; cursor:default; }
.loading-screen.is-hidden{ pointer-events:none; }
.loading-inner{ text-align:center; opacity:0; animation:load-in .8s ease forwards; }
.loading-brand{ font-weight:600; font-size:20px; letter-spacing:0.06em; }
.loading-brand span{ font-size:10px; vertical-align:super; margin-left:2px; }
.loading-text{ margin-top:1.1em; font-size:11px; letter-spacing:0.26em; text-transform:uppercase;
  color:var(--muted); animation:load-pulse 1.8s ease-in-out infinite; }
.loading-bar{ width:120px; height:1px; margin:1.6em auto 0; background:rgba(0,0,0,0.12); overflow:hidden; }
.loading-bar span{ display:block; width:100%; height:100%; background:var(--ink); transform:scaleX(0);
  transform-origin:left center; animation:load-bar 1.4s ease-in-out forwards; }
@keyframes load-in{ to{ opacity:1; } }
@keyframes load-pulse{ 0%,100%{ opacity:0.45; } 50%{ opacity:1; } }
@keyframes load-bar{ to{ transform:scaleX(1); } }
@media (max-width:768px){ .loading-screen{ height:100svh; } }