/* ─── Design system variables ────────────────────────────── */
:root {
  --bg:        #FAF8F4;
  --ink:       #111010;
  --ink-soft:  #4A4745;
  --accent:    #2B3A5C;
  --gold:      #C8A96A;
  --rule:      rgba(17,16,16,0.12);
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;
  --font-body:    'Helvetica Neue', Helvetica, Arial, sans-serif;
  --nav-w: 220px;
  /* legacy compat */
  --black:      #111010;
  --gray:       #4A4745;
  --light-gray: rgba(17,16,16,0.12);
  --white:      #FAF8F4;
}

/* ─── Base ────────────────────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}

/* ─── Grain overlay ──────────────────────────────────────── */
body::after {
  content:''; position:fixed; inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events:none; z-index:9000; opacity:0.4;
}

/* ─── Scroll progress ─────────────────────────────────────── */
#progress {
  position:fixed; top:0; left:0; height:2px; width:0%;
  background:var(--gold); z-index:9998; pointer-events:none;
}

/* ─── Custom cursor ──────────────────────────────────────── */
.cursor {
  position:fixed; width:8px; height:8px; border-radius:50%;
  background:var(--accent); pointer-events:none; z-index:9999;
  transform:translate(-50%,-50%);
  transition:width .3s,height .3s,background .3s,opacity .3s;
  mix-blend-mode:multiply; will-change:transform;
}
.cursor.hover { width:48px; height:48px; background:var(--gold); opacity:.5; }

/* ─── Sidebar nav ─────────────────────────────────────────── */
#side-nav {
  position:fixed; top:0; left:0; bottom:0; width:var(--nav-w);
  padding:2.5rem 2rem; display:flex; flex-direction:column;
  justify-content:space-between; z-index:800;
  border-right:1px solid var(--rule); background:var(--bg);
}
.nav-monogram {
  font-family:'Archivo', var(--font-mono); font-weight:300;
  font-size:0.82rem; letter-spacing:0.22em; text-transform:uppercase;
  color:var(--ink); text-decoration:none; display:block; margin-bottom:3rem; line-height:1;
}
.nav-monogram:hover { color:var(--accent); }
.nav-links { list-style:none; flex:1; }
.nav-links li { margin-bottom:1.6rem; }
.nav-links a {
  text-decoration:none; display:block;
  padding-left:.8rem; border-left:2px solid transparent;
  transition:border-color .2s, color .2s;
}
.nav-links a:hover, .nav-links a.active {
  border-left-color:var(--accent); color:var(--accent);
}
.nav-en {
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.18em;
  text-transform:uppercase; color:var(--ink); display:block;
}
.nav-ja {
  font-family:var(--font-display); font-style:italic;
  font-size:.8rem; color:var(--ink-soft); display:block; margin-top:1px;
}
#nav-lang {
  font-family:var(--font-mono); font-size:.65rem; letter-spacing:.15em;
  text-transform:uppercase; background:none; border:1px solid var(--rule);
  color:var(--ink); padding:6px 14px; cursor:none; margin-top:2rem;
  transition:background .2s, color .2s;
}
#nav-lang:hover { background:var(--accent); color:var(--bg); border-color:var(--accent); }

/* ─── Mobile nav ──────────────────────────────────────────── */
#top-bar {
  display:none; position:fixed; top:0; left:0; right:0; height:56px;
  background:var(--bg); z-index:900; align-items:center; padding:0 1.4rem;
  border-bottom:1px solid var(--rule);
}
.bar-name {
  font-family:var(--font-mono); font-size:.75rem;
  letter-spacing:.14em; text-transform:uppercase; color:var(--ink);
}
#hamburger {
  display:none; position:fixed; top:1.2rem; right:1.4rem; z-index:1100;
  background:none; border:none; cursor:pointer; flex-direction:column;
  gap:5px; padding:4px;
}
#hamburger span {
  display:block; width:24px; height:1.5px; background:var(--ink);
  transition:transform .3s, opacity .3s;
}
#hamburger.open span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
#hamburger.open span:nth-child(2){ opacity:0; }
#hamburger.open span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }
#mobile-nav {
  display:none; position:fixed; inset:0; background:var(--bg); z-index:1000;
  flex-direction:column; align-items:center; justify-content:center; gap:2.4rem;
}
#mobile-nav.open { display:flex; }
#mobile-nav a {
  font-family:var(--font-display); font-size:2rem; font-weight:300;
  color:var(--ink); text-decoration:none; letter-spacing:.05em;
}
#mobile-nav a:hover { color:var(--accent); }
#mobile-lang {
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.15em;
  text-transform:uppercase; background:none; border:1px solid var(--rule);
  color:var(--ink); padding:8px 20px; margin-top:.8rem; cursor:pointer;
}

/* ─── Layout shift for sidebar ────────────────────────────── */
@media (min-width:1024px) {
  body { padding-left: var(--nav-w); }
}
@media (max-width:1023px) {
  body { cursor:auto; padding-top:56px; }
  .cursor { display:none; }
  #side-nav { display:none; }
  #hamburger, #top-bar { display:flex; }
}

/* ─── Hero ────────────────────────────────────────────────── */
.work-hero {
  position:relative; width:100%; height:70vh; min-height:400px;
  overflow:hidden; margin-top:0;
}
.work-hero img {
  width:100%; height:130%; object-fit:cover; object-position:center center;
  position:absolute; top:-15%; left:0; will-change:transform;
}
.work-hero-overlay {
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(17,16,16,0.65) 0%, rgba(17,16,16,0.1) 55%, transparent 100%);
  display:flex; align-items:flex-end;
}
.work-hero-text { padding:3rem; color:var(--white); }
.work-tag {
  font-family:var(--font-mono); font-size:.65rem; letter-spacing:.2em;
  text-transform:uppercase; color:rgba(245,243,239,.65);
  display:block; margin-bottom:.7rem;
}
.work-hero-text h1 {
  font-family:var(--font-display); font-weight:300;
  font-size:clamp(2rem,5vw,3.5rem); letter-spacing:.04em;
  line-height:1.05; margin-bottom:.4rem;
}
.work-hero-text p {
  font-family:var(--font-body); font-size:.88rem; font-style:italic;
  color:rgba(245,243,239,.7); letter-spacing:.03em;
}

/* ─── Body ────────────────────────────────────────────────── */
.work-body {
  max-width:980px; margin:0 auto;
  padding:4rem 2rem 6rem;
}

/* ─── Intro grid ──────────────────────────────────────────── */
.work-intro {
  display:grid; grid-template-columns:260px 1fr;
  gap:4rem; margin-bottom:5rem;
}
@media (max-width:768px) {
  .work-intro { grid-template-columns:1fr; gap:2.5rem; }
}

/* ─── Meta block ──────────────────────────────────────────── */
.work-meta-block {
  border-top:1px solid var(--rule); padding-top:1.5rem;
}
.meta-row {
  display:flex; flex-direction:column;
  gap:.25rem; margin-bottom:1.25rem;
}
.meta-key {
  font-family:var(--font-mono); font-size:.6rem;
  letter-spacing:.16em; text-transform:uppercase; color:var(--gold);
}
.meta-val { font-size:.84rem; color:var(--ink); line-height:1.55; }
.awards-row .meta-val ul { list-style:none; padding:0; margin:0; }
.awards-row .meta-val ul li {
  font-size:.8rem; color:var(--ink-soft);
  padding:.2rem 0; border-bottom:1px solid var(--rule); line-height:1.45;
}
.awards-row .meta-val ul li:last-child { border-bottom:none; }

/* ─── Description ─────────────────────────────────────────── */
.work-description h2 {
  font-family:var(--font-display); font-weight:300;
  font-size:1.35rem; letter-spacing:.04em; color:var(--ink);
  margin:2.5rem 0 .8rem; padding-bottom:.4rem;
  border-bottom:1px solid var(--rule);
}
.work-description h2:first-child { margin-top:0; }
.work-description p {
  font-size:.87rem; line-height:1.85; color:var(--ink-soft); margin-bottom:1rem;
}
.work-description strong { color:var(--ink); font-weight:500; }

/* ─── Gallery ─────────────────────────────────────────────── */
.work-gallery { margin-bottom:5rem; }
.gallery-full { margin-bottom:1.5rem; }
.gallery-full img {
  width:100%; display:block;
  border:1px solid var(--rule);
  user-select:none; -webkit-user-drag:none;
}
.gallery-grid {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:1rem; margin-bottom:1.5rem;
}
.gallery-grid img {
  width:100%; aspect-ratio:4/3; object-fit:cover; display:block;
  border:1px solid var(--rule);
  user-select:none; -webkit-user-drag:none;
}
.gallery-caption {
  font-family:var(--font-mono); font-size:.65rem; letter-spacing:.06em;
  color:var(--ink-soft); margin-top:.5rem; font-style:italic;
}

/* ─── Lightbox ────────────────────────────────────────────── */
#lightbox {
  display:none; position:fixed; inset:0;
  background:rgba(17,16,16,0.93); z-index:9999;
  align-items:center; justify-content:center; cursor:zoom-out;
}
#lightbox.active { display:flex; }
#lightbox img {
  max-width:90vw; max-height:90vh; width:auto; height:auto;
  object-fit:contain; position:static; transform:none;
  cursor:default; box-shadow:0 8px 40px rgba(0,0,0,.5);
  user-select:none; -webkit-user-drag:none;
}
#lightbox-close {
  position:fixed; top:1.2rem; right:1.8rem;
  color:rgba(245,243,239,.6); font-size:2.2rem; line-height:1;
  cursor:pointer; font-family:var(--font-mono); font-weight:300;
  user-select:none; transition:color .2s;
}
#lightbox-close:hover { color:#FAF8F4; }

/* ─── Prev / Next nav ─────────────────────────────────────── */
.work-nav {
  display:flex; justify-content:space-between; align-items:center;
  padding-top:2.5rem; border-top:1px solid var(--rule);
  flex-wrap:wrap; gap:1rem;
}
.back-link, .next-link {
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.1em;
  color:var(--ink); text-decoration:none;
  position:relative; padding-bottom:1px;
  transition:color .2s;
}
.back-link::after, .next-link::after {
  content:''; position:absolute; bottom:0; left:0;
  width:0; height:1px; background:var(--accent);
  transition:width .3s;
}
.back-link:hover, .next-link:hover { color:var(--accent); }
.back-link:hover::after, .next-link:hover::after { width:100%; }

/* ─── Footer ──────────────────────────────────────────────── */
footer {
  background:var(--ink); color:rgba(245,243,239,.25);
  text-align:center; padding:2rem;
  font-family:var(--font-mono); font-size:.62rem; letter-spacing:.15em;
  margin-top:0;
}
footer p { font-size:.62rem; }