:root{
  --bg:#fff; --bg-alt:#f4f4f2; --fg:#111; --muted:#6f6f6f;
  --line:#dcdcda; --line-strong:#111;
  --glass-bg:rgba(255,255,255,.55); --glass-brd:rgba(255,255,255,.6);
  --glow:#3b6ef6;
  box-sizing:border-box; padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0d0d0c; --bg-alt:#161615; --fg:#f2f2ef; --muted:#9a9a95; --line:#2c2c2a; --line-strong:#f2f2ef;
    --glass-bg:rgba(20,20,20,.5); --glass-brd:rgba(255,255,255,.12);
  }
}
:root[data-theme="dark"]{ --bg:#0d0d0c; --bg-alt:#161615; --fg:#f2f2ef; --muted:#9a9a95; --line:#2c2c2a; --line-strong:#f2f2ef; --glass-bg:rgba(20,20,20,.5); --glass-brd:rgba(255,255,255,.12); }
*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:96px;}
html,body{margin:0; background:var(--bg); color:var(--fg);}
body{font-family:'Archivo',Helvetica,Arial,sans-serif; -webkit-font-smoothing:antialiased; overflow-x:hidden;}
a{color:inherit; text-decoration:none;}
img,svg{max-width:100%;}
.wrap{max-width:1240px; margin:0 auto; padding:0 32px;}
@media (max-width:640px){ .wrap{padding:0 18px;} }
h1,h2,h3{margin:0;}

/* ---------- glass nav ---------- */
.nav-shell{ position:fixed; top:calc(18px + env(safe-area-inset-top,0px)); left:0; right:0; z-index:100; display:flex; justify-content:center; pointer-events:none; }
.glass-nav{ pointer-events:auto; display:flex; align-items:center; gap:4px; max-width:min(92vw,640px); overflow-x:auto; scrollbar-width:none; padding:6px; border-radius:999px; background:var(--glass-bg); border:1px solid var(--glass-brd); backdrop-filter:blur(18px) saturate(160%); -webkit-backdrop-filter:blur(18px) saturate(160%); box-shadow:0 8px 32px rgba(0,0,0,.12); }
.glass-nav::-webkit-scrollbar{display:none;}
.glass-nav.dragging{cursor:grabbing;}
.gn-item{ flex:0 0 auto; font-family:inherit; font-size:12px; letter-spacing:.06em; text-transform:uppercase; background:transparent; border:none; color:var(--fg); padding:11px 18px; border-radius:999px; cursor:pointer; white-space:nowrap; transition:box-shadow .25s ease, background .25s ease, color .25s ease; }
.gn-item.active{ background:var(--fg); color:var(--bg); box-shadow:0 0 0 5px rgba(59,110,246,.22), 0 0 18px 2px var(--glow); }

/* ---------- hero ---------- */
.hero{ padding:min(22vh,170px) 0 70px; border-bottom:1px solid var(--line); }
.hero-eyebrow{ font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted); margin:0 0 26px; }
.hero h1{ font-size:clamp(44px,8.5vw,112px); line-height:.94; font-weight:700; letter-spacing:-.01em; margin:0 0 28px; max-width:16ch; }
.hero p{ font-size:clamp(15px,2vw,18px); line-height:1.6; color:var(--muted); max-width:52ch; margin:0; }

/* ---------- moving gallery (home) ---------- */
.gallery-wrap{ padding:70px 0 90px; border-bottom:1px solid var(--line); }
.gallery-head{ margin-bottom:34px; }
.gallery-head p{ font-size:13px; color:var(--muted); max-width:40ch; line-height:1.6; margin:6px 0 0; }
.gallery{ display:flex; gap:14px; overflow-x:auto; scrollbar-width:none; padding:4px 0 10px; cursor:grab; }
.gallery::-webkit-scrollbar{display:none;}
.gallery.dragging{ cursor:grabbing; }
.g-card{ flex:0 0 auto; width:min(72vw,300px); aspect-ratio:4/5; border:1px solid var(--line-strong); display:flex; flex-direction:column; justify-content:space-between; padding:24px; background:var(--bg); transition:background .2s ease,color .2s ease; }
.g-card:hover{ background:var(--fg); color:var(--bg); }
.g-index{ font-size:11px; letter-spacing:.12em; opacity:.6; }
.g-name{ font-size:26px; font-weight:700; line-height:1.05; }
.g-sub{ font-size:12px; letter-spacing:.06em; text-transform:uppercase; opacity:.6; }

/* ---------- section shell (continuous, no numbering) ---------- */
section{ padding:90px 0; border-bottom:1px solid var(--line); }
section.alt{ background:var(--bg-alt); }
.section-head{ margin-bottom:52px; }
.section-title{ font-size:clamp(30px,5vw,50px); font-weight:700; letter-spacing:-.01em; margin:0 0 12px; line-height:1.02; }
.section-note{ font-size:13px; color:var(--muted); max-width:44ch; line-height:1.6; margin:0; }

/* ---------- square tile grid ---------- */
.tile-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(190px,1fr)); gap:1px; background:var(--line-strong); border:1px solid var(--line-strong); }
.tile{ aspect-ratio:1/1; background:var(--bg); display:flex; flex-direction:column; justify-content:space-between; padding:20px; cursor:pointer; text-align:left; font-family:inherit; border:none; color:var(--fg); transition:background .2s ease, color .2s ease; }
.tile:hover{ background:var(--bg-alt); }
.tile.active{ background:var(--fg); color:var(--bg); }
.tile-index{ font-size:11px; letter-spacing:.1em; opacity:.6; }
.tile-name{ font-size:17px; font-weight:600; line-height:1.15; }
.tile-tap{ font-size:10px; letter-spacing:.1em; text-transform:uppercase; opacity:.55; }

.detail-panel{ margin-top:28px; padding-top:28px; border-top:1px solid var(--line-strong); display:none; }
.detail-panel.show{ display:block; }
.detail-panel h3{ font-size:24px; font-weight:600; margin:0 0 10px; }
.detail-meta{ font-size:12px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted); margin:0 0 18px; }
.detail-panel p{ font-size:15px; line-height:1.7; color:var(--muted); max-width:56ch; margin:0 0 22px; }
.tags{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:22px; }
.tag{ font-size:10px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted); border:1px solid var(--line); padding:6px 10px; }

.btn{ display:inline-flex; align-items:center; gap:10px; font-size:11px; letter-spacing:.14em; text-transform:uppercase; padding:15px 26px; border:1px solid var(--line-strong); background:transparent; color:var(--fg); cursor:pointer; transition:background .2s ease,color .2s ease; font-family:inherit; }
.btn.solid{ background:var(--fg); color:var(--bg); }
.btn:hover{ background:var(--fg); color:var(--bg); }
.btn.solid:hover{ background:transparent; color:var(--fg); }
.btn[disabled]{ opacity:.4; cursor:default; }
.file-actions{ display:flex; gap:12px; flex-wrap:wrap; }
.dl-status{ margin-top:12px; font-size:12px; color:var(--muted); }

/* ---------- about ---------- */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; }
@media (max-width:820px){ .about-grid{ grid-template-columns:1fr; gap:44px; } }
.about-grid p{ font-size:15px; line-height:1.75; color:var(--muted); max-width:54ch; }
.list-block h4{ font-size:12px; letter-spacing:.14em; text-transform:uppercase; color:var(--muted); margin:0 0 20px; padding-bottom:12px; border-bottom:1px solid var(--line-strong); }
.li-row{ padding:14px 0; border-bottom:1px solid var(--line); }
.li-row:last-child{ border-bottom:none; }
.li-title{ font-size:15px; font-weight:600; margin:0 0 3px; }
.li-sub{ font-size:12px; color:var(--muted); margin:0; }

/* ---------- footer / contact ---------- */
footer{ padding:70px 0 46px; }
.footer-top{ display:flex; justify-content:space-between; align-items:flex-end; gap:24px; flex-wrap:wrap; padding-bottom:46px; margin-bottom:26px; border-bottom:1px solid var(--line); }
.footer-top h2{ font-size:clamp(28px,5vw,48px); font-weight:700; margin:0; max-width:14ch; line-height:1.05; }
.footer-links a{ font-size:12px; letter-spacing:.1em; text-transform:uppercase; border-bottom:1px solid var(--fg); padding-bottom:2px; }
.footer-bottom{ display:flex; justify-content:space-between; font-size:11px; color:var(--muted); flex-wrap:wrap; gap:10px; }
::selection{ background:var(--fg); color:var(--bg); }
.skip-link{ position:absolute; left:-999px; top:0; background:var(--fg); color:var(--bg); padding:10px 16px; z-index:200; }
.skip-link:focus{ left:12px; top:12px; }