@import url(fonts/noto/900.css);
@font-face{font-family:"InterV";src:url(fonts/inter/inter-latin-wght-normal.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:"InterV";src:url(fonts/inter/inter-latin-wght-italic.woff2) format("woff2");font-weight:100 900;font-style:italic;font-display:swap}
@font-face{font-family:"JBM";src:url(fonts/mono/jetbrains-mono-latin-wght-normal.woff2) format("woff2");font-weight:100 800;font-display:swap}

/* same tokens as yang-lyu.com */
:root{
  --ink:#07080a; --ink2:#0d0f12; --ink3:#14171b; --ink4:#1c2026;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.16);
  --bone:#f2efe7; --mute:#8f929a; --dim:#5b5f67;
  --acid:#d9ff3f; --acid-ink:#12160a;
  --sans:"InterV",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --disp:"InterV","Noto Sans SC","PingFang SC",sans-serif;
  --mono:"JBM",ui-monospace,Menlo,monospace;
  --pad:clamp(16px,4vw,48px);
  --row:180px; --gap:6px;
}
@media (min-width:640px){:root{--row:230px;--gap:8px}}
@media (min-width:1100px){:root{--row:300px;--gap:10px}}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;background:var(--ink)}
html.lock{overflow:hidden}
body{background:var(--ink);color:var(--bone);font-family:var(--sans);font-size:16px;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
::selection{background:var(--acid);color:var(--acid-ink)}
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:100;opacity:.06;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}

.wrap{max-width:1600px;margin:0 auto;padding:0 var(--pad)}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.acid{color:var(--acid)}
.disp{font-family:var(--disp);font-weight:900;letter-spacing:-.035em;line-height:.98}

/* ---------- hero ---------- */
.hero{position:relative;min-height:min(88svh,900px);display:flex;align-items:flex-end;overflow:hidden;background:#0b0d0f}
.hero-img,.hero-img img{position:absolute;inset:0;width:100%;height:100%}
.hero-img img{object-fit:cover;object-position:50% 40%;animation:settle 2.4s cubic-bezier(.2,.8,.2,1) both}
@keyframes settle{from{transform:scale(1.06);opacity:.4}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,8,10,.55) 0%,rgba(7,8,10,0) 28%,rgba(7,8,10,.15) 50%,rgba(7,8,10,.92) 88%,var(--ink) 100%)}
.bar{position:absolute;top:0;left:0;right:0;z-index:3;display:flex;justify-content:space-between;align-items:center;padding:16px var(--pad)}
.bar .me{font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-decoration:none}
.bar .back{text-decoration:none;opacity:.8;transition:.2s}
.bar .back:hover{opacity:1;color:var(--acid)}
.hero-copy{position:relative;z-index:2;width:100%;padding-bottom:clamp(34px,6vw,72px)}
.hero h1{font-size:clamp(48px,9vw,148px);margin-top:14px;text-shadow:0 2px 40px rgba(0,0,0,.35)}
.hero h1 .out{color:transparent;-webkit-text-stroke:1.5px rgba(242,239,231,.75)}
.lede{max-width:27em;margin-top:20px;color:#d6d3cb;font-size:clamp(15px,1.4vw,18px)}
.stats{display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:26px;color:var(--mute)}
.stats b{color:var(--bone);font-family:var(--sans);font-weight:900;font-style:italic;font-size:22px;letter-spacing:-.02em;margin-right:6px;text-transform:none}
.hero-cap{position:absolute;z-index:2;right:var(--pad);bottom:clamp(34px,6vw,72px);color:rgba(242,239,231,.55);font-size:10.5px;writing-mode:vertical-rl;letter-spacing:.18em}
@media (max-width:720px){.hero-cap{display:none}}

/* ---------- filters ---------- */
.filters-wrap{position:sticky;top:0;z-index:20;background:rgba(7,8,10,.78);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom:1px solid var(--line)}
.filters{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-top:12px;padding-bottom:12px}
.filters::-webkit-scrollbar{display:none}
.filters button{flex:none;font-family:var(--mono);font-size:12px;letter-spacing:.06em;padding:8px 14px;border-radius:99px;border:1px solid var(--line2);color:var(--mute);transition:.2s;white-space:nowrap}
.filters button:hover{color:var(--bone);border-color:rgba(255,255,255,.3)}
.filters button[aria-pressed=true]{background:var(--bone);color:var(--ink);border-color:var(--bone)}
.filters button i{font-style:normal;opacity:.55;margin-left:6px}

/* ---------- theme sections ---------- */
.theme{padding-top:clamp(44px,7vw,96px)}
.theme[hidden]{display:none}
.sec-top{display:flex;justify-content:space-between;align-items:flex-end;gap:12px 24px;flex-wrap:wrap;margin-bottom:clamp(18px,2.6vw,32px)}
.sec-top h2{font-size:clamp(34px,5.6vw,80px)}
.sec-top h2 small{display:block;font-family:var(--mono);font-weight:400;font-size:12px;letter-spacing:.12em;color:var(--acid);text-transform:uppercase;margin-bottom:12px}
.sec-top p{color:var(--mute);font-family:var(--mono);font-size:12px;letter-spacing:.1em}

/* ---------- justified grid (pure CSS: grow & basis ∝ aspect ratio => equal row heights) ---------- */
.grid{display:flex;flex-wrap:wrap;gap:var(--gap)}
.grid::after{content:"";flex-grow:999}
.tile{position:relative;flex-grow:var(--r);flex-basis:calc(var(--r) * var(--row));aspect-ratio:var(--r);overflow:hidden;border-radius:4px;cursor:zoom-in;background:var(--c) center/cover no-repeat;background-image:var(--lq);outline:none}
.tile picture,.tile img{width:100%;height:100%}
.tile img{object-fit:cover;opacity:0;transition:opacity .6s ease,transform 1.2s cubic-bezier(.2,.8,.2,1)}
.tile img.in{opacity:1}
.tile .t{position:absolute;left:0;right:0;bottom:0;padding:28px 12px 10px;background:linear-gradient(transparent,rgba(0,0,0,.6));font-size:13px;font-weight:600;letter-spacing:.01em;opacity:0;transform:translateY(6px);transition:.3s;pointer-events:none}
.tile .t span{display:block;font-family:var(--mono);font-weight:400;font-size:10.5px;letter-spacing:.1em;color:rgba(242,239,231,.7);text-transform:uppercase}
@media (hover:hover){
  .tile:hover img{transform:scale(1.035)}
  .tile:hover .t{opacity:1;transform:none}
}
.tile:focus-visible{box-shadow:0 0 0 2px var(--acid)}

/* ---------- footer ---------- */
footer{margin-top:clamp(80px,12vw,160px);padding:clamp(60px,9vw,120px) 0 40px;border-top:1px solid var(--line);overflow:hidden}
footer .ft{font-size:clamp(64px,15vw,240px);line-height:.85}
footer .ft span{color:transparent;-webkit-text-stroke:1.5px var(--line2)}
footer p{color:#cfccc4;max-width:32em;margin:28px 0 22px;font-size:clamp(16px,1.5vw,20px)}
.btn{display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.08em;padding:11px 18px;border-radius:99px;border:1px solid var(--line2);color:var(--bone);text-decoration:none;transition:.2s}
.btn.solid{background:var(--acid);color:var(--acid-ink);border-color:var(--acid)}
.btn.solid:hover{filter:brightness(1.08)}
footer .fine{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:64px;font-family:var(--mono);font-size:11.5px;color:var(--dim);letter-spacing:.08em}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:200;background:#050607;display:flex;flex-direction:column;opacity:0;transition:opacity .25s;touch-action:none}
.lb.on{opacity:1}
.lb[hidden]{display:none}
.lb-stage{position:absolute;inset:56px 0 84px;display:flex;align-items:center;justify-content:center;padding:0 clamp(8px,6vw,96px)}
.lb-stage img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;border-radius:2px;background:var(--c,#111) center/cover no-repeat;background-image:var(--lq);transition:opacity .25s,transform .3s cubic-bezier(.2,.8,.2,1);user-select:none;-webkit-user-select:none;-webkit-user-drag:none}
.lb-stage img.fade{opacity:0}
.lb-top{position:absolute;top:0;left:0;right:0;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--pad);color:var(--mute)}
.lb-x{width:44px;height:44px;margin-right:-10px;font-size:18px;color:var(--bone);opacity:.8;transition:.2s}
.lb-x:hover{opacity:1;color:var(--acid)}
.lb-nav{position:absolute;top:56px;bottom:84px;width:min(22vw,140px);display:flex;align-items:center;color:var(--bone);opacity:.55;transition:opacity .2s}
.lb-nav span{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:1px solid var(--line2);background:rgba(7,8,10,.4);font-family:var(--mono);font-size:16px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.lb-nav:hover{opacity:1} .lb-nav:hover span{border-color:var(--acid);color:var(--acid)}
.lb-nav.prev{left:0;justify-content:flex-start;padding-left:var(--pad)}
.lb-nav.next{right:0;justify-content:flex-end;padding-right:var(--pad)}
.lb-cap{position:absolute;left:0;right:0;bottom:0;height:84px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:0 var(--pad) env(safe-area-inset-bottom)}
.lb-cap b{font-size:15px;font-weight:600;letter-spacing:.01em}
.lb-cap span{margin-top:4px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--mute);text-transform:uppercase}
@media (max-width:640px){
  .lb-stage{inset:52px 0 92px;padding:0}
  .lb-nav{display:none}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.lb button:focus{outline:none}
.lb button:focus-visible{outline:1px solid var(--acid);outline-offset:2px;border-radius:99px}
.filters button:focus-visible{outline:1px solid var(--acid);outline-offset:2px}