/* ============================================================
   cayrabo.cn — personal site
   design tokens borrowed in spirit from petrillo.studio / daikifujita.com
   12-col grid · 20px gutter · paper/night duality · mono labels
   ============================================================ */

@font-face{
  font-family:"Serif SC";
  src:url("../fonts/noto-serif-sc-700.woff2") format("woff2");
  font-weight:700;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"Instrument Serif";
  src:url("../fonts/instrument-serif-400.woff2") format("woff2");
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"Instrument Serif";
  src:url("../fonts/instrument-serif-400-italic.woff2") format("woff2");
  font-weight:400;font-style:italic;font-display:swap;
}
@font-face{
  font-family:"Inter Tight";
  src:url("../fonts/inter-tight.woff2") format("woff2");
  font-weight:400 600;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"DM Mono";
  src:url("../fonts/dm-mono-400.woff2") format("woff2");
  font-weight:400;font-style:normal;font-display:swap;
}

:root{
  --paper:#edeae3;
  --ink:#121212;
  --night:#0b0a0f;
  --night-2:#131019;
  --accent:#ff3b1f;
  --mint:#3df1a6;

  --m:clamp(20px,2.8vw,48px);      /* page margin */
  --g:20px;                         /* grid gutter */
  --top:clamp(64px,9vh,92px);       /* top bar height */

  --ease:cubic-bezier(.19,1,.22,1);      /* expo out */
  --io:cubic-bezier(.77,0,.18,1);        /* in-out */

  --serif-cn:"Serif SC","Songti SC","Noto Serif CJK SC",serif;
  --serif-en:"Instrument Serif",Georgia,serif;
  --sans:"Inter Tight","PingFang SC","HarmonyOS Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --mono:"DM Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --fs-body:clamp(15px,1.06vw,17px);
  --fs-lead:clamp(17px,1.45vw,21px);
  --fs-h2:clamp(30px,4.4vw,62px);
  --fs-mega:clamp(56px,12.2vw,190px);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--night);color:var(--paper);
  font-family:var(--sans);font-size:var(--fs-body);line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#fff}

/* ---------- grid helper ---------- */
.grid{
  display:grid;grid-template-columns:repeat(12,1fr);
  column-gap:var(--g);padding-left:var(--m);padding-right:var(--m);
}

/* ============================================================
   loader
   ============================================================ */
#loader{
  position:fixed;inset:0;z-index:200;background:var(--night);
  display:flex;align-items:flex-end;justify-content:space-between;
  padding:var(--m);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:#6b6a72;
  transition:clip-path 1s var(--ease) .15s;clip-path:inset(0 0 0 0);
}
#loader .pct{color:var(--paper);font-size:clamp(28px,4vw,54px);letter-spacing:-.02em;line-height:1}
#loader.done{clip-path:inset(0 0 100% 0)}

/* ============================================================
   top bar — mix-blend difference keeps it legible on paper & night
   ============================================================ */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--top);display:flex;align-items:center;
  padding:0 var(--m);
  color:#fff;mix-blend-mode:difference;
  transition:transform .55s var(--ease);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
}
.topbar.hide{transform:translateY(-105%)}
.topbar .name{font-size:11px;letter-spacing:.06em}
.topbar nav{display:flex;gap:clamp(14px,2.2vw,30px);margin-left:auto}
.topbar nav a{position:relative;opacity:.72;transition:opacity .3s}
.topbar nav a:hover,.topbar nav a.on{opacity:1}
.topbar nav a::after{
  content:"";position:absolute;left:0;bottom:-5px;width:100%;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease);
}
.topbar nav a:hover::after,.topbar nav a.on::after{transform:scaleX(1)}
.topbar .lang{display:flex;gap:8px;margin-left:clamp(14px,2.2vw,30px);font-size:10.5px}
.topbar .lang a{opacity:.5}
.topbar .lang a.on{opacity:1}
.topbar .sound{
  background:none;border:0;color:inherit;font:inherit;letter-spacing:.14em;
  cursor:pointer;opacity:.6;padding:0;margin-left:clamp(12px,1.6vw,22px);
  display:flex;align-items:center;gap:6px;text-transform:uppercase;
}
.topbar .sound:hover{opacity:1}
.topbar .sound i{display:inline-block;width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.35;transition:.3s}
.topbar .sound[aria-pressed="true"] i{opacity:1;box-shadow:0 0 8px currentColor}

/* ============================================================
   hero
   ============================================================ */
.hero{
  position:relative;min-height:100svh;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding-bottom:clamp(18px,3vh,34px);
  background:var(--night);
}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(72% 58% at 62% 34%,rgba(255,59,31,.16),transparent 68%),
    radial-gradient(46% 40% at 18% 82%,rgba(61,241,166,.08),transparent 70%);
}
.hero-grain{
  position:absolute;inset:0;pointer-events:none;opacity:.16;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='.6'/></svg>");
}
.hero-top{
  position:absolute;top:calc(var(--top) + 2vh);left:var(--m);right:var(--m);
  display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#8b8a93;
}
.hero-top .who{color:var(--paper)}
.hero-top .r{text-align:right;line-height:2.1}
.hero-body{position:relative;padding-left:var(--m);padding-right:var(--m)}
.hero-kicker{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:#8b8a93;display:flex;align-items:center;gap:12px;margin-bottom:clamp(16px,3vh,30px);
}
.hero-kicker::before{content:"";width:36px;height:1px;background:var(--accent)}
h1.mega{
  margin:0;font-family:var(--serif-cn);font-weight:700;
  font-size:var(--fs-mega);line-height:.94;letter-spacing:-.035em;
  color:var(--paper);
}
h1.mega .ln{display:block;overflow:hidden}
h1.mega .ch{display:inline-block;will-change:transform}
h1.mega .accent{color:var(--accent)}
h1.mega em{font-family:var(--serif-en);font-style:italic;font-weight:400;letter-spacing:-.02em}
.hero-sub{
  display:flex;justify-content:space-between;align-items:flex-end;gap:clamp(20px,5vw,80px);
  margin-top:clamp(22px,4vh,42px);flex-wrap:wrap;
}
.hero-sub p{margin:0;max-width:30em;color:#b8b6bd;font-size:var(--fs-lead);line-height:1.7}
.hero-scroll{
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#8b8a93;
  display:flex;align-items:center;gap:10px;
}
.hero-scroll span{display:block;width:1px;height:38px;background:linear-gradient(180deg,var(--accent),transparent);animation:drop 2.2s var(--io) infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.clock{
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:#8b8a93;
  font-variant-numeric:tabular-nums;
}

/* ============================================================
   section shell
   ============================================================ */
section{position:relative}
.sec{padding:clamp(64px,11vh,150px) 0}
.paper{background:var(--paper);color:var(--ink)}
.night{background:var(--night);color:var(--paper)}
.sec-head{
  display:flex;justify-content:space-between;align-items:baseline;gap:20px;
  border-top:1px solid currentColor;padding-top:12px;margin-bottom:clamp(34px,7vh,80px);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  opacity:.62;
}
.paper .sec-head{border-color:rgba(18,18,18,.24)}
.night .sec-head{border-color:rgba(237,234,227,.22)}

/* ============================================================
   work
   ============================================================ */
.work{padding:0 0 clamp(40px,8vh,90px)}
.work-item{padding:clamp(40px,8vh,96px) 0;border-bottom:1px solid rgba(18,18,18,.16)}
.work-item:first-of-type{padding-top:0}
.work-grid{
  display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--g);
  padding-left:var(--m);padding-right:var(--m);align-items:start;
}
.work-no{
  grid-column:1/3;font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:rgba(18,18,18,.45);padding-top:.5em;
}
.work-title{
  grid-column:3/10;margin:0;font-family:var(--serif-cn);font-weight:700;
  font-size:clamp(30px,4.6vw,68px);line-height:1.02;letter-spacing:-.03em;
  overflow:hidden;
}
.work-title .ch{display:inline-block}
.work-year{
  grid-column:10/13;text-align:right;font-family:var(--mono);font-size:10.5px;
  letter-spacing:.14em;color:rgba(18,18,18,.5);padding-top:.9em;
}
.work-media{
  grid-column:1/13;margin-top:clamp(22px,4vh,44px);
  position:relative;overflow:hidden;background:#dcd7cc;
  aspect-ratio:21/9;will-change:clip-path;
}
.work-media .ph{
  position:absolute;inset:0;
  transform:scale(1.06);will-change:transform;
}
.work-media::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.28;
  background-image:linear-gradient(90deg,rgba(255,255,255,.32) 1px,transparent 1px);
  background-size:calc((100% - 2 * var(--m)) / 12) 100%;
  background-position:var(--m) 0;
}
.work-media .ph::after{
  content:"";position:absolute;inset:0;opacity:.35;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='.55'/></svg>");
}
.ph-a{background:linear-gradient(128deg,#1d2a4a 0%,#3f5f8a 42%,#c9d3dd 100%)}
.ph-b{background:linear-gradient(155deg,#2b1c12 0%,#7a4a2c 45%,#e8c9a0 100%)}
.ph-c{background:linear-gradient(100deg,#111 0%,#3a3f38 50%,#7c8a6f 100%)}
.work-media .frame{
  position:absolute;inset:clamp(12px,1.8vw,26px);z-index:3;pointer-events:none;
  border:1px solid rgba(255,255,255,.26);
}
.media-title{
  position:absolute;left:clamp(26px,3vw,52px);top:clamp(26px,3vw,52px);z-index:3;
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.78);max-width:60%;
}
.media-tag{
  position:absolute;left:clamp(12px,1.6vw,22px);bottom:clamp(12px,1.6vw,22px);z-index:2;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(255,255,255,.82);
}
.media-num{
  position:absolute;right:clamp(14px,2.2vw,34px);bottom:clamp(-24px,-1.4vw,-8px);z-index:2;
  font-family:var(--serif-en);font-size:clamp(90px,19vw,280px);line-height:.72;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.42);
  pointer-events:none;user-select:none;
}
.work-meta{
  grid-column:1/13;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--g) clamp(20px,4vw,60px);margin-top:clamp(18px,3vh,30px);
}
.work-meta div{font-size:13.5px;line-height:1.75;color:rgba(18,18,18,.72)}
.work-meta dt{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(18,18,18,.42);margin-bottom:6px;
}
.work-meta dd{margin:0}
.work-desc{grid-column:1/7;margin:0;font-size:var(--fs-body);line-height:1.9;color:rgba(18,18,18,.78)}
.work-facts{grid-column:8/13;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:16px 24px}

/* ============================================================
   ticker
   ============================================================ */
.ticker{
  overflow:hidden;border-top:1px solid rgba(237,234,227,.18);border-bottom:1px solid rgba(237,234,227,.18);
  background:var(--night);color:var(--paper);padding:14px 0;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
}
.ticker-track{display:flex;gap:36px;white-space:nowrap;will-change:transform}
.ticker-track span{opacity:.55}
.ticker-track b{color:var(--accent);font-weight:400}

/* ============================================================
   about
   ============================================================ */
.about-grid{
  display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--g);
  padding-left:var(--m);padding-right:var(--m);
}
.about-lead{
  grid-column:1/9;margin:0;font-family:var(--serif-cn);font-weight:700;
  font-size:clamp(26px,3.4vw,50px);line-height:1.34;letter-spacing:-.02em;
}
.about-lead em{font-family:var(--serif-en);font-style:italic;font-weight:400;color:var(--accent)}
.about-body{grid-column:3/9;margin-top:clamp(28px,5vh,52px);color:#b6b4bb}
.about-body p{margin:0 0 1.15em;font-size:var(--fs-body);line-height:1.95}
.about-side{
  grid-column:10/13;margin-top:clamp(28px,5vh,52px);
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:#87858f;
}
.about-side h4{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:#5f5d68;font-weight:400;
  margin:0 0 10px;padding-bottom:8px;border-bottom:1px solid rgba(237,234,227,.16);
}
.about-side ul{list-style:none;margin:0 0 26px;padding:0}
.about-side li{padding:5px 0;border-bottom:1px solid rgba(237,234,227,.08);color:#a9a7b0}

/* ============================================================
   resume strip
   ============================================================ */
.resume-grid{
  display:grid;grid-template-columns:repeat(12,1fr);column-gap:var(--g);
  padding-left:var(--m);padding-right:var(--m);
}
.cv{grid-column:1/13;border-top:1px solid rgba(18,18,18,.18)}
.cv-row{
  display:grid;grid-template-columns:100px minmax(0,1.5fr) minmax(0,1fr) 90px;
  gap:clamp(14px,2.4vw,40px);padding:clamp(16px,2.6vh,26px) 0;
  border-bottom:1px solid rgba(18,18,18,.14);align-items:baseline;
  transition:background .4s var(--ease),padding-left .4s var(--ease);
}
.cv-row:hover{background:rgba(18,18,18,.035);padding-left:10px}
.cv-row .y{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:rgba(18,18,18,.45)}
.cv-row .c{font-size:clamp(15px,1.35vw,19px);letter-spacing:-.01em}
.cv-row .c small{display:block;font-size:12.5px;color:rgba(18,18,18,.55);margin-top:3px;letter-spacing:0}
.cv-row .r{font-size:13px;color:rgba(18,18,18,.62)}
.cv-row .p{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(18,18,18,.4);text-align:right}
.cv-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:clamp(26px,4vh,40px)}
.btn{
  display:inline-flex;align-items:center;gap:12px;
  border:1px solid rgba(18,18,18,.3);border-radius:999px;padding:12px 22px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);transition:.45s var(--ease);
}
.btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.solid{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn.solid:hover{background:var(--accent);border-color:var(--accent)}

/* ============================================================
   contact
   ============================================================ */
.contact{position:relative;overflow:hidden}
.contact .mega{
  font-family:var(--serif-cn);font-weight:700;font-size:clamp(48px,10.4vw,168px);
  line-height:.96;letter-spacing:-.04em;margin:0;
  padding-left:var(--m);padding-right:var(--m);
}
.contact .mega em{font-family:var(--serif-en);font-style:italic;font-weight:400;color:var(--accent)}
.contact-links{
  display:flex;flex-wrap:wrap;gap:clamp(16px,3vw,44px);
  margin-top:clamp(28px,5vh,54px);padding-left:var(--m);padding-right:var(--m);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;
}
.contact-links a{position:relative;padding-bottom:4px}
.contact-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .5s var(--ease);
}
.contact-links a:hover::after{transform:scaleX(1);transform-origin:left}
footer{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  margin-top:clamp(56px,10vh,120px);padding:16px var(--m) 26px;
  border-top:1px solid rgba(237,234,227,.16);
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#6f6d78;
}

/* ============================================================
   cursor
   ============================================================ */
.cursor,.cursor-dot{
  position:fixed;top:0;left:0;z-index:300;pointer-events:none;
  border-radius:50%;mix-blend-mode:difference;will-change:transform;
}
.cursor{
  width:34px;height:34px;border:1px solid #fff;
  margin:-17px 0 0 -17px;opacity:0;transition:opacity .4s,width .35s var(--ease),height .35s var(--ease),margin .35s var(--ease),background .35s;
}
.cursor-dot{width:5px;height:5px;background:#fff;margin:-2.5px 0 0 -2.5px;opacity:0}
body.has-cursor .cursor,body.has-cursor .cursor-dot{opacity:1}
body.cursor-hover .cursor{width:64px;height:64px;margin:-32px 0 0 -32px;background:rgba(255,255,255,.12)}

/* ============================================================
   reveal primitives (JS adds .in)
   ============================================================ */
.rv{opacity:0;transform:translateY(22px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.rv.in{opacity:1;transform:none}
.line{overflow:hidden;display:block}
.line>span{display:block;transform:translateY(105%);transition:transform 1.1s var(--ease)}
.line.in>span{transform:none}

/* ============================================================
   responsive
   ============================================================ */
@media (max-width:1000px){
  .work-no{grid-column:1/4}
  .work-title{grid-column:1/13;margin-top:8px}
  .work-year{grid-column:1/13;text-align:left;padding-top:6px}
  .work-desc{grid-column:1/13}
  .work-facts{grid-column:1/13;margin-top:18px}
  .work-media{aspect-ratio:4/3}
  .media-num{font-size:34vw}
  .about-lead{grid-column:1/13}
  .about-body{grid-column:1/13}
  .about-side{grid-column:1/13;display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .cv-row{grid-template-columns:78px 1fr;row-gap:4px}
  .cv-row .r,.cv-row .p{grid-column:2;text-align:left}
}
@media (max-width:760px){
  :root{--fs-mega:clamp(46px,14.2vw,84px)}
  .topbar nav{gap:12px}
  .topbar .name{font-size:10px}
  .topbar .sound span{display:none}
  .hero-sub{flex-direction:column;align-items:flex-start;gap:18px}
  .hero-top{font-size:9px;letter-spacing:.12em}
  .work-meta{gap:14px}
  .work-desc{grid-column:1/13}
  .work-facts{grid-column:1/13}
  .cursor,.cursor-dot{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv,.line>span{opacity:1!important;transform:none!important}
  #loader{display:none}
}

/* ============================================================
   english edition — serif display, tighter tracking
   ============================================================ */
html[lang="en"] h1.mega,
html[lang="en"] .contact .mega,
html[lang="en"] .work-title,
html[lang="en"] .about-lead,
html[lang="en"] .r-head h1{
  font-family:var(--serif-en);font-weight:400;letter-spacing:-.022em;
}
html[lang="en"] h1.mega{line-height:.86}
html[lang="en"] .work-title{line-height:.98}
html[lang="en"] .about-lead{line-height:1.2}
html[lang="en"] .contact .mega{line-height:.9}
html[lang="en"] .about-lead em{font-family:var(--serif-en)}
html[lang="en"] .work-meta .work-desc{line-height:1.75}
html[lang="en"] .hero-sub p{max-width:34em}

/* CJK must not be faux-italic */
html[lang="zh-CN"] em{font-style:normal}
html[lang="zh-CN"] .contact .mega em,
html[lang="zh-CN"] .about-lead em{font-family:var(--serif-cn);font-weight:700;font-style:normal}