/* HYOXOE — base layer (structure from site v3/v4). DESIGN SYSTEM V1.0: this file supplies layout, grid, routes and
   components; css/restored.css (loaded after it) sets every colour and type value and overrides the old cream/cobalt
   tokens below. Spec: docs/DESIGN_SYSTEM_V1.md. URL study switches are not supported in the official site. */
:root{
  --bg:#f7f5f0; --ink:#101113; --mute:#6b7076;
  /* v4.2 cobalt header (study start #1848FF — overridable with ?blue=) */
  --cobalt:#1848ff; --cobalt-hi:color-mix(in srgb, var(--cobalt), #fff 10%); --cobalt-lo:color-mix(in srgb, var(--cobalt), #000 16%);
  --accent:var(--cobalt);
  --surface:color-mix(in srgb, var(--bg), #000 4%);
  --surface-a:rgba(255,255,255,.52);          /* pills: frosted white over the cream */
  --panel-a:rgba(255,255,255,.62);            /* dropdowns, info panel */
  --edge:rgba(16,17,19,.05);                  /* 1px inner hairline instead of a shadow */
  --line:color-mix(in srgb, var(--bg), #000 9%);
  --m:10px; --pill-h:30px; --cols:4;
  --col:calc((100vw - var(--m) * (var(--cols) + 1)) / var(--cols));
  --r-tile:calc(var(--col) * .22); --r-panel:15px;
  --font:"Helvetica Neue",Helvetica,Arial,"Malgun Gothic",sans-serif;
  --fs:11px; --lh:14px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 var(--fs)/var(--lh) var(--font);letter-spacing:.02em;-webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;letter-spacing:inherit;background:none;border:0;padding:0;cursor:pointer;text-align:left}
:focus-visible{outline:1px solid var(--accent);outline-offset:2px}
.body-text{font-size:12.5px;line-height:18px;letter-spacing:.005em}
.skip-link{position:absolute;left:-999px;top:6px;z-index:99;background:var(--ink);color:#fff;padding:6px 10px;border-radius:15px}
.skip-link:focus{left:10px}
.label{color:var(--mute);text-transform:uppercase;letter-spacing:.1em}

/* ---------- NAVIGATION (v4.2): three cobalt pills, white type; blue lives only here ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:40;display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));column-gap:var(--m);row-gap:var(--m);padding:var(--m);pointer-events:none}
.nav>*{pointer-events:auto}
.pill{display:flex;align-items:center;justify-content:space-between;gap:12px;height:var(--pill-h);padding:0 20px;border-radius:calc(var(--pill-h) / 2);background:var(--surface-a);box-shadow:inset 0 0 0 1px var(--edge);backdrop-filter:blur(16px) saturate(1.1);-webkit-backdrop-filter:blur(16px) saturate(1.1);letter-spacing:.06em;transition:background .18s,color .18s}
.pill:hover{background:rgba(255,255,255,.78)}
.nav .pill{background:var(--cobalt);color:#fff;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
.nav .pill:hover{background:var(--cobalt-hi)}
.nav .toggle[aria-expanded="true"]{background:var(--cobalt-lo)}
.nav .pill:focus-visible{outline:2px solid #fff;outline-offset:-4px}
.brand{grid-column:1/3}
.brand .sub{color:rgba(255,255,255,.86);font-weight:300;flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tagline{color:#fff;font-weight:400}
.caret{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .2s var(--ease)}
.toggle[aria-expanded="true"] .caret{transform:translateY(2px) rotate(-135deg)}

/* HYOXOE wordmark study — A bold neo-grotesk · B compact heavy · C wide editorial. System fonts only. */
.wordmark{color:#fff;white-space:nowrap}
:root[data-wm="A"] .wordmark{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:700;font-size:clamp(13px,.72vw,15px);letter-spacing:.16em;margin-right:-.16em}
:root[data-wm="B"] .wordmark{font-family:"Arial Black","Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:900;font-size:clamp(13px,.72vw,15px);letter-spacing:.06em;margin-right:-.06em;transform:scaleY(.94)}
:root[data-wm="C"] .wordmark{font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-weight:600;font-size:clamp(12px,.66vw,14px);letter-spacing:.42em;margin-right:-.42em}

/* glass panels: real backdrop diffusion of the images behind, very light hairline */
.panel{grid-row:2;border-radius:var(--r-panel);background:rgba(247,247,247,.74);box-shadow:inset 0 0 0 1px rgba(255,255,255,.55),0 0 0 .5px rgba(16,17,19,.06);backdrop-filter:blur(26px) saturate(1.15);-webkit-backdrop-filter:blur(26px) saturate(1.15);padding:22px 22px 26px;max-height:calc(100svh - 60px);overflow:auto;opacity:0;transform:translateY(-6px);transition:opacity .18s ease,transform .22s var(--ease)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.panel{background:rgba(247,247,247,.97)}}
.panel.open{opacity:1;transform:none}
.panel[hidden]{display:none}
.work-panel{grid-column:3/5}
.about-panel{grid-column:4/5}
.panel section+section{margin-top:30px}
.panel .label{display:block;font-size:10px;color:#7d8187;padding-bottom:9px;margin-bottom:10px;border-bottom:1px solid rgba(16,17,19,.09)}
.panel p{margin:0}
.panel .lead-s{font-size:12.5px;line-height:18px}
.panel ul{list-style:none;margin:0;padding:0}
.panel li{line-height:18px}
.idx{width:100%;border-collapse:collapse;table-layout:fixed}
.panel .idx th.label{display:table-cell;margin:0;border-bottom:1px solid rgba(16,17,19,.09)}
.idx th{font-weight:400;text-align:left;padding:0 0 10px}
.idx td{padding:0;border-bottom:1px solid rgba(16,17,19,.08)}
.idx tr:last-child td{border-bottom:0}
.idx td a{display:block;padding:11px 18px 11px 0}
.idx th{padding-right:18px}
.idx tbody tr{transition:background .15s}
.idx tbody tr:hover,.idx tbody tr:focus-within{background:rgba(255,255,255,.55)}
.idx tbody tr:hover td,.idx tbody tr:focus-within td{color:var(--cobalt)}
.idx tr[aria-current="page"] td{color:var(--cobalt)}
.panel a:hover{color:var(--cobalt)}
.idx .n{width:8%}.idx .t{width:40%}.idx .c{width:42%}.idx .y{width:10%}
.idx .y a{padding-right:0}
.idx .st{color:var(--mute)}
.review-flag{position:fixed;right:var(--m);bottom:var(--m);z-index:50;background:var(--ink);color:#fff;border-radius:15px;padding:6px 12px;letter-spacing:.06em}

main{padding:calc(var(--m) * 2 + var(--pill-h)) var(--m) 0;min-height:70svh;outline:none}
main.leaving{opacity:0;transition:opacity .2s}

/* ---------- HOME: 4-column visual grid ---------- */
.home{padding-top:clamp(96px,26vh,220px)}
.grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:var(--m)}
.tile{position:relative;display:block;aspect-ratio:4/5;border-radius:var(--r-tile);overflow:hidden;background:var(--surface);isolation:isolate}
.tile img,.tile video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:var(--focus,50% 50%);transition:transform .9s var(--ease),opacity .4s}
/* FROSTED EDITORIAL EDGE — A clean · B permanent · C on hover only. A ring (--ew wide) above the image:
   backdrop blur of the image's own edge + a faint white hairline; the centre is masked out and stays sharp. */
.tile::after{content:"";position:absolute;inset:0;z-index:1;border-radius:inherit;pointer-events:none;padding:var(--ew,10px);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0);
  backdrop-filter:blur(5px) saturate(1.04);-webkit-backdrop-filter:blur(5px) saturate(1.04);
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.02) 45%,rgba(255,255,255,.07));box-shadow:inset 0 0 0 1px rgba(255,255,255,.24);
  opacity:0;transition:opacity .35s ease}
:root[data-edge="B"] .tile::after{opacity:1}
@media (hover:hover){ :root[data-edge="C"] .tile:hover::after,:root[data-edge="C"] .tile:focus-visible::after{opacity:1} }
.tile .tag{z-index:2}
.tile video{opacity:0}
.tile.playing video{opacity:1}
.tile:hover img,.tile:focus-visible img{transform:scale(1.02)}
.tile .tag{position:absolute;left:50%;bottom:16px;transform:translate(-50%,6px);max-width:calc(100% - 32px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;height:26px;display:flex;align-items:center;gap:10px;padding:0 14px;border-radius:13px;background:rgba(255,255,255,.82);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);opacity:0;transition:opacity .25s,transform .25s var(--ease)}
.tile .tag i{font-style:normal;color:var(--mute)}
.tile .tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none}
.tile:hover .tag,.tile:focus-visible .tag{opacity:1;transform:translate(-50%,0)}
.tile .rv{position:absolute;top:14px;left:50%;transform:translateX(-50%);font-size:9px;letter-spacing:.04em;background:rgba(16,17,19,.72);color:#fff;border-radius:9px;padding:2px 8px;white-space:nowrap}
.img-in{opacity:0}
.img-in.ready{opacity:1;transition:opacity .5s}

/* ---------- PROJECT DETAIL ---------- */
.detail{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:var(--m);padding-top:clamp(96px,26vh,240px);align-items:start}
.d-side{grid-column:1/2;position:sticky;top:calc(var(--m) * 2 + var(--pill-h));display:flex;flex-direction:column;gap:var(--m)}
.d-back{grid-column:2/3}
.d-back .pill .caret{transform:rotate(135deg)}
.info{border-radius:var(--r-panel);background:var(--panel-a);box-shadow:inset 0 0 0 1px var(--edge);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);padding:20px;max-height:calc(100svh - 110px);overflow:auto}
.info a{color:var(--accent)}
.d-next .pill:hover,.d-back .pill:hover{color:var(--accent)}
.info section+section{margin-top:28px}
.info .label{display:block;padding-bottom:8px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.info dl{display:grid;grid-template-columns:44% 1fr;gap:2px 8px;margin:0}
.info dt{color:var(--ink)}
.info dd{margin:0}
.info dd.nc{color:var(--mute)}
.info p{margin:0}
.info ul{margin:0;padding-left:14px}
.info.review{background:#fbf6e9}
.d-media{grid-column:3/5;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--m)}
.fig{position:relative;margin:0;border-radius:var(--r-tile);overflow:hidden;background:var(--surface);aspect-ratio:4/5}
.fig.L{grid-column:1/-1;aspect-ratio:16/9}
.fig.single{grid-column:1/2}
.fig img,.fig video{width:100%;height:100%;object-fit:cover;object-position:var(--focus,50% 50%)}
.fig img{cursor:zoom-in}
.fig .rv{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);max-width:calc(100% - 28px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:9px;background:rgba(16,17,19,.72);color:#fff;border-radius:9px;padding:2px 8px;opacity:0;transition:opacity .2s}
.fig:hover .rv,.fig:focus-within .rv{opacity:1}
.fig .vctl{position:absolute;right:14px;bottom:14px;height:26px;padding:0 12px;border-radius:13px;background:rgba(255,255,255,.82);backdrop-filter:blur(10px)}
.chap-rv{grid-column:1/-1;color:var(--mute);padding:6px 0 0}
.d-next{grid-column:3/5;margin-top:var(--m)}
.d-next .pill{justify-content:space-between}

/* ---------- ABOUT PAGE ---------- */
.about{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:var(--m);padding-top:clamp(96px,26vh,240px);align-items:start}
.about .info:first-child{grid-column:1/3}
.about .info:nth-child(2){grid-column:3/4}
.about .info:nth-child(3){grid-column:4/5}
.about .lead{font-size:16px;line-height:23px;max-width:40ch}

/* ---------- FOOTER ---------- */
.foot{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));gap:var(--m);padding:clamp(80px,14vh,160px) var(--m) var(--m)}
.foot .pill:first-child{grid-column:1/3;justify-content:center}
.foot .pill{justify-content:space-between}

/* ---------- LIGHTBOX ---------- */
.lightbox{position:fixed;inset:0;z-index:60;background:color-mix(in srgb, var(--bg) 96%, transparent);display:flex;align-items:center;justify-content:center}
.lightbox[hidden]{display:none}
.lightbox figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:10px}
.lightbox img{max-width:86vw;max-height:84svh;width:auto;height:auto;border-radius:24px}
.lightbox figcaption{color:var(--mute)}
.lb-close{position:absolute;top:var(--m);right:var(--m)}
.lb-prev{position:absolute;left:var(--m);bottom:var(--m)}
.lb-next{position:absolute;right:var(--m);bottom:var(--m)}

/* ---------- MOBILE ---------- */
@media (max-width:760px){
  :root{--cols:2}
  .nav{grid-template-rows:var(--pill-h) var(--pill-h) auto}
  .brand{grid-column:1/3}
  .work-toggle{grid-column:1/2;grid-row:2}.about-toggle{grid-column:2/3;grid-row:2}
  .panel{grid-row:3}.work-panel,.about-panel{grid-column:1/3}
  .pill{padding:0 16px}
  .tagline{font-size:10px}
  .brand .sub{display:none}
  main{padding-top:calc(var(--m) * 3 + var(--pill-h) * 2)}
  .home,.detail,.about{padding-top:clamp(64px,14vh,150px)}
  .d-side,.d-back,.d-media,.d-next,.about .info{grid-column:1/-1!important}
  .d-side{position:static}
  .info{max-height:none}
  .d-back{display:grid;grid-template-columns:1fr 1fr;gap:var(--m)}.d-back .pill{grid-column:2}
  .panel .idx th.c,.panel .idx td.c{display:none}
  .idx .n{width:12%}.idx .t{width:66%}.idx .y{width:22%}
  .foot .pill:first-child{grid-column:1/-1}
}
@media (max-width:420px){ .d-media{grid-template-columns:repeat(2,minmax(0,1fr))} .fig .rv{display:none} }
@media (prefers-reduced-motion:reduce){ *{transition:none!important;animation:none!important} .img-in{opacity:1} }