/* ==========================================================================
   LIMINAL: Within — red-lit office meets black & white limbo
   ========================================================================== */

.page-liminal{
  --bg:#07090a;
  --bg-2:#0d1112;
  --fg:#e9ecea;
  --muted:#7d8786;
  --line:rgba(233,236,234,.12);
  --accent:#ff4a3d;
  --accent-ink:#0b0b0c;
  --teal:#45d6cf;
  --serif:'Shippori Mincho','Songti SC','STSong','Noto Serif SC','Source Han Serif SC','SimSun',serif;
  --pixel:'Silkscreen',var(--cjk),monospace;
}
.page-liminal ::selection{background:var(--accent);color:#fff}
.px{font-family:var(--pixel);font-size:11px;letter-spacing:.04em}

/* CRT scanlines across the page */
.scanlines{
  position:fixed;inset:0;z-index:89;pointer-events:none;opacity:.35;mix-blend-mode:multiply;
  background:repeating-linear-gradient(to bottom,rgba(0,0,0,0) 0,rgba(0,0,0,0) 2px,rgba(0,0,0,.35) 3px);
}

/* loader */
.loader--crt{background:#000}
.crt-boot{display:flex;flex-direction:column;align-items:center;gap:6px;margin:0;font-family:var(--pixel);font-size:14px;letter-spacing:.3em;text-transform:uppercase;color:var(--fg);animation:flick 1.6s steps(2) infinite}
.crt-boot span:last-child{color:var(--muted);font-size:10px}
@keyframes flick{0%,100%{opacity:1}50%{opacity:.85}}

/* ---------------- hero ---------------- */
.lhero{position:relative;height:100vh;height:100svh;min-height:600px;overflow:hidden;background:#000}
.lhero__gl,.lhero__fallback{position:absolute;inset:0;width:100%;height:100%}
.lhero__fallback{object-fit:cover;object-position:62% center;opacity:0}
.lhero.no-gl .lhero__fallback{opacity:1}
.lhero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(7,9,10,.85) 0%,rgba(7,9,10,.35) 45%,rgba(7,9,10,0) 70%),
    linear-gradient(0deg,var(--bg) 0%,rgba(7,9,10,0) 40%);}
.lhero__ui{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:space-between;padding-top:100px;padding-bottom:28px;pointer-events:none}
.lhero__ui a,.lhero__ui button{pointer-events:auto}
.lhero__type{margin:0;color:var(--teal);min-height:1.5em}
.caret{display:inline-block;width:.6em;height:1.1em;margin-left:4px;vertical-align:-.2em;background:var(--teal);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

.wordmark{margin:0;display:flex;flex-direction:column;align-items:flex-start;line-height:1}
.wordmark__main{
  position:relative;display:block;
  font-weight:150;font-stretch:62%;text-transform:uppercase;
  font-size:clamp(76px,15vw,250px);letter-spacing:.14em;margin-right:-.14em;line-height:.9;
}
.wordmark__main::before,.wordmark__main::after{
  content:attr(data-glitch);position:absolute;inset:0;pointer-events:none;mix-blend-mode:screen;opacity:.9;
}
.wordmark__main::before{color:var(--accent);animation:glitchA 4.5s infinite steps(1)}
.wordmark__main::after{color:var(--teal);animation:glitchB 4.5s infinite steps(1)}
@keyframes glitchA{
  0%,86%,100%{transform:none;clip-path:inset(0 0 100% 0)}
  87%{transform:translate(-6px,0);clip-path:inset(12% 0 60% 0)}
  89%{transform:translate(5px,0);clip-path:inset(55% 0 20% 0)}
  91%{transform:translate(-3px,0);clip-path:inset(30% 0 45% 0)}
  93%{transform:none;clip-path:inset(0 0 100% 0)}
}
@keyframes glitchB{
  0%,86%,100%{transform:none;clip-path:inset(0 0 100% 0)}
  88%{transform:translate(6px,0);clip-path:inset(40% 0 30% 0)}
  90%{transform:translate(-5px,0);clip-path:inset(70% 0 5% 0)}
  92%{transform:translate(2px,0);clip-path:inset(5% 0 80% 0)}
}
.wordmark__sub{display:flex;align-items:center;gap:16px;margin-top:10px;font-family:var(--serif);font-weight:500;font-size:clamp(18px,2.2vw,32px);letter-spacing:.32em;color:#d9dcda}
.wordmark__sub i{display:block;width:clamp(40px,7vw,110px);height:1px;background:currentColor;opacity:.6}

.lhero__tag{margin:26px 0 30px;font-family:var(--serif);font-size:clamp(18px,1.8vw,26px);color:#c7cccb}
.lhero__tag em{font-style:normal;color:#fff;background:linear-gradient(transparent 62%,rgba(255,74,61,.55) 62%)}
.lhero__ctas{display:flex;flex-wrap:wrap;gap:12px}
.lhero__ctas .px{font-size:10px}
.lhero__foot{display:flex;justify-content:space-between;gap:16px;color:var(--muted)}
.lhero__hint{color:var(--fg)}
.lhero__hint::before{content:"◎ ";color:var(--accent)}
@media (max-width:760px){.lhero__hint{display:none}.lhero::after{background:linear-gradient(0deg,var(--bg) 0%,rgba(7,9,10,.55) 55%,rgba(7,9,10,.2) 100%)}}

/* ---------------- intro ---------------- */
.lintro{padding-block:clamp(96px,12vw,180px)}
.lintro__title{margin:0 0 clamp(40px,6vw,80px);max-width:14ch;font-family:var(--serif);font-weight:800;font-size:clamp(44px,7.4vw,124px);line-height:1;letter-spacing:-.02em}
.lintro__grid{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(40px,7vw,120px)}
.lintro__copy p{margin:0 0 22px;font-size:clamp(16px,1.3vw,19px);line-height:1.7;color:#bfc6c4;max-width:58ch}
.lintro__copy .lead{font-family:var(--serif);font-size:clamp(22px,2.3vw,32px);line-height:1.45;color:var(--fg)}
.pixel-q{font-family:var(--pixel)!important;color:var(--accent)!important;font-size:16px!important;letter-spacing:.06em}
.pixel-q::before{content:"▶ ";animation:blink 1s steps(1) infinite}
.specs{margin:0;border-top:1px solid var(--line);align-self:start}
.specs div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.specs dt{color:var(--muted);padding-top:3px}
.specs dd{margin:0;font-size:17px}
.specs small{color:var(--muted);font-size:13px}
@media (max-width:860px){.lintro__grid{grid-template-columns:1fr}}

/* ---------------- two worlds slider ---------------- */
.worlds{padding-bottom:clamp(96px,12vw,180px)}
.worlds__head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px 40px;margin-bottom:36px}
.worlds__title{margin:0;font-family:var(--serif);font-weight:500;font-size:clamp(32px,4.6vw,72px);line-height:1.05}
.split{position:relative;aspect-ratio:1170/500;border-radius:14px;overflow:hidden;background:#000;box-shadow:0 0 0 1px var(--line),0 40px 120px -40px rgba(255,74,61,.35);touch-action:pan-y}
.split video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.split__b{position:absolute;inset:0;clip-path:inset(0 0 0 var(--split));}
.split__b video{filter:grayscale(1) contrast(1.35) brightness(1.05)}
.split__b::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(0,0,0,.25) 0 2px,transparent 2px 4px);pointer-events:none}
.split__bar{position:absolute;top:0;bottom:0;left:var(--split);width:2px;margin-left:-1px;background:var(--accent);box-shadow:0 0 24px var(--accent);pointer-events:none}
.split__knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:var(--accent);color:#fff;font-size:10px;letter-spacing:.1em;white-space:nowrap}
.split__label{position:absolute;top:18px;padding:6px 12px;border-radius:999px;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);pointer-events:none}
.split__label--a{left:18px}
.split__label--b{right:18px;color:#fff}
.split__range{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
html.has-cursor .split__range{cursor:none}
.worlds__notes{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,80px);margin-top:32px}
.worlds__notes p{margin:0;color:#bfc6c4;line-height:1.65;max-width:52ch}
.worlds__notes .mono{display:block;margin-bottom:10px;color:var(--accent)}
@media (max-width:760px){.split{aspect-ratio:4/3}.worlds__notes{grid-template-columns:1fr}.split__knob{width:48px;height:48px;font-size:8px}}

/* ---------------- chapters ---------------- */
.chapters{display:grid;gap:clamp(80px,12vw,180px);padding-bottom:clamp(96px,12vw,180px)}
.chapter{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(32px,6vw,96px);align-items:center}
.chapter--flip .chapter__media{order:2}
.frame{position:relative;border-radius:6px;overflow:hidden;aspect-ratio:1170/500;background:#000}
.frame video{width:100%;height:100%;object-fit:cover;transform:scale(1.04);transition:transform 1.2s var(--ease-out)}
.frame:hover video{transform:scale(1)}
.frame::before{content:"";position:absolute;inset:10px;z-index:2;pointer-events:none;
  background:
    linear-gradient(var(--fg),var(--fg)) top left/14px 1px,linear-gradient(var(--fg),var(--fg)) top left/1px 14px,
    linear-gradient(var(--fg),var(--fg)) top right/14px 1px,linear-gradient(var(--fg),var(--fg)) top right/1px 14px,
    linear-gradient(var(--fg),var(--fg)) bottom left/14px 1px,linear-gradient(var(--fg),var(--fg)) bottom left/1px 14px,
    linear-gradient(var(--fg),var(--fg)) bottom right/14px 1px,linear-gradient(var(--fg),var(--fg)) bottom right/1px 14px;
  background-repeat:no-repeat;opacity:.8}
.frame__tag{position:absolute;left:20px;bottom:18px;z-index:2;color:#fff}
.frame__tag::before{content:"● ";color:var(--accent);animation:blink 1.2s steps(1) infinite}
.chapter__no{display:block;font-family:var(--pixel);font-size:12px;color:var(--accent);margin-bottom:16px}
.chapter__no::before{content:"CH."}
.chapter h3{margin:0 0 20px;font-family:var(--serif);font-weight:800;font-size:clamp(28px,3.4vw,52px);line-height:1.1}
.chapter p{margin:0;color:#bfc6c4;line-height:1.7;max-width:48ch}
@media (max-width:860px){.chapter{grid-template-columns:1fr}.chapter--flip .chapter__media{order:0}}

/* ---------------- horizontal gallery ---------------- */
.lgallery{position:relative;border-block:1px solid var(--line);background:var(--bg-2)}
.lgallery__pin{height:100vh;height:100svh;display:flex;flex-direction:column;justify-content:center;gap:32px;overflow:hidden}
.lgallery__head{display:flex;justify-content:space-between}
.lgallery__head .kicker{margin:0}
.lgallery__track{display:flex;gap:clamp(16px,2vw,32px);padding-inline:var(--gutter);width:max-content}
.lgallery__track a{position:relative;flex:none;width:clamp(280px,46vw,760px);aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:#000}
.lgallery__track img{width:100%;height:100%;object-fit:cover;filter:grayscale(.65) contrast(1.05);transition:filter .6s,transform 1s var(--ease-out)}
.lgallery__track a:hover img{filter:none;transform:scale(1.03)}
.lgallery__track a::after{content:attr(data-n);position:absolute;left:14px;top:12px;font-family:var(--pixel);font-size:11px;color:#fff}
@media (max-width:760px),(prefers-reduced-motion:reduce){
  .lgallery__pin{height:auto;padding-block:72px}
  .lgallery__track{width:auto;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;-webkit-overflow-scrolling:touch}
  .lgallery__track a{scroll-snap-align:center;width:82vw}
}

.source{margin:0;padding-block:56px 0;font-family:var(--serif);font-size:clamp(16px,1.4vw,20px);color:var(--muted);text-align:center}
.source em{color:var(--fg)}

.glinks__title{font-family:var(--serif);font-weight:800;letter-spacing:-.01em}
.page-liminal .next__title{font-family:'Fredoka',sans-serif;font-weight:700;letter-spacing:-.02em}

html.lang-zh .wordmark__sub{letter-spacing:.14em;font-size:clamp(16px,1.9vw,28px)}
html.lang-zh .lintro__title,html.lang-zh .chapter h3,html.lang-zh .worlds__title{letter-spacing:.02em;line-height:1.2}
html.lang-zh .lintro__copy .lead{line-height:1.7}
html.lang-zh .page-liminal .next__title{font-weight:700}