/* ============================================================
   SISSI YANG — PORTFOLIO v2
   Bold · colorful · playful · trilingual (中 / FR / EN)
   Design tokens & layout per the redesign handoff.
   ============================================================ */

:root{
  --paper:#FBF6EC;
  --ink:#1A1712;
  --accent:#B54664;          /* raspberry — replaces old seal-red */
  --accent-tint:#B5466414;   /* ~8% alpha, chips / block bg */
  --ph:#F0E7D6;              /* image placeholder */
  --inverse:#FBF6EC;

  --ink-45:rgba(26,23,18,.45);
  --ink-50:rgba(26,23,18,.50);
  --ink-55:rgba(26,23,18,.55);
  --ink-62:rgba(26,23,18,.62);
  --ink-66:rgba(26,23,18,.66);
  --ink-72:rgba(26,23,18,.72);
  --ink-74:rgba(26,23,18,.74);
  --ink-80:rgba(26,23,18,.80);

  --b-10:rgba(26,23,18,.10);
  --b-12:rgba(26,23,18,.12);
  --b-14:rgba(26,23,18,.14);
  --b-16:rgba(26,23,18,.16);
  --b-22:rgba(26,23,18,.22);

  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --bric:'Bricolage Grotesque',sans-serif;
  --body:'Hanken Grotesk',-apple-system,BlinkMacSystemFont,sans-serif;

  /* max content width; the gutter grows past its base so content stays centered
     with a margin on both sides on wide screens */
  --maxw:1360px;
  --gutter:max(clamp(20px,5vw,72px), calc((100% - var(--maxw)) / 2));
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.6;
}
img{display:block;max-width:100%}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--ink)}
button{font-family:inherit}
::selection{background:var(--ink);color:var(--inverse)}

::-webkit-scrollbar{height:12px;width:12px}
::-webkit-scrollbar-track{background:var(--ph)}
::-webkit-scrollbar-thumb{background:var(--ink);border-radius:999px;border:3px solid var(--ph)}

@keyframes pulse{0%,100%{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.25)}}

/* reveal on scroll ------------------------------------------------ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:6px var(--gutter);
  background:rgba(251,246,236,.82);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1.5px solid var(--b-10);
}
.brand{
  display:flex;align-items:center;gap:11px;
  color:var(--ink);cursor:pointer;
}
.brand:hover{color:var(--ink)}
.brand-name{font-family:var(--bric);font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand img{width:54px;height:54px;object-fit:contain;display:block}
.nav-right{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px);flex-wrap:wrap;justify-content:flex-end}
.nav-links{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px)}
.nav-link{
  font-size:12.5px;text-transform:uppercase;letter-spacing:.14em;font-weight:600;
  color:var(--ink-62);background:none;border:0;cursor:pointer;padding:0;
}
.nav-link:hover{color:var(--accent)}
.lang{display:flex;gap:5px;padding-left:6px}
.lang-pill{
  display:inline-grid;place-items:center;min-width:34px;height:30px;padding:0 9px;
  border-radius:999px;font-family:var(--body);font-weight:700;font-size:12px;cursor:pointer;
  border:1.5px solid var(--b-22);background:transparent;color:var(--ink-62);transition:.2s;
}
.lang-pill:hover{border-color:var(--ink)}
.lang-pill.on{background:var(--ink);color:var(--inverse);border-color:var(--ink)}

/* ============================================================
   FRAME (image + graceful placeholder)
   ============================================================ */
.frame{
  position:relative;border-radius:14px;overflow:hidden;
  background:var(--ph);border:1px solid var(--b-12);
}
.frame .ph{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:7px;padding:14px;text-align:center;
}
.frame .ph-cap{font-family:var(--mono);font-size:11px;letter-spacing:.03em;color:var(--ink-50);max-width:90%}
.frame .ph-file{font-family:var(--mono);font-size:10px;color:rgba(26,23,18,.32)}
.frame img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  display:block;background:#fff;
}
.frame img.fit-contain{object-fit:contain;background:var(--paper)}
.frame video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:#000}
.frame.fit-contain video{object-fit:contain}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding:120px var(--gutter) 70px;position:relative;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) clamp(300px,22vw,360px);gap:clamp(32px,5vw,68px);align-items:center}
.hero-main{min-width:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  font-weight:600;color:var(--accent);margin-bottom:20px;
}
.eyebrow .rule{width:34px;height:2px;background:var(--accent)}
.hero-name{
  font-family:var(--bric);font-weight:800;font-size:clamp(3rem,9vw,6.6rem);
  line-height:.92;letter-spacing:-.035em;
}
.hero-name em{font-style:normal;color:var(--accent)}
.hero-row{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-top:18px}
.hero-role{font-family:var(--bric);font-weight:600;font-size:clamp(1.1rem,2.4vw,1.5rem);color:var(--ink)}
.hero-cjk{font-family:'Noto Serif SC',serif;font-size:14px;letter-spacing:.2em;color:var(--ink-45)}
.hero-lead{
  max-width:80ch;font-size:17px;color:var(--ink-74);margin-top:26px;
  padding-left:18px;border-left:3px solid var(--accent);line-height:1.75;
}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;max-width:80ch}
.chip{
  font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px;
  border:1.5px solid var(--ink);background:var(--accent-tint);
}
.hero-aside{width:250px;justify-self:start}
.portrait{
  border:1.5px solid var(--b-16);border-radius:16px;overflow:hidden;
  aspect-ratio:4/5;background:var(--ph);
}
.portrait img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block}
.langbar{margin-top:16px}
.langbar-label{
  font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.18em;
  color:var(--ink-45);margin-bottom:9px;text-align:center;
}
.langbar-pills{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.langbar-pill{
  font-size:12.5px;font-weight:600;padding:6px 14px;border-radius:999px;cursor:pointer;
  background:transparent;color:var(--ink);border:1.5px solid var(--b-22);transition:.2s;
}
.langbar-pill:hover{border-color:var(--ink)}
.langbar-pill.on{background:var(--ink);color:var(--inverse);border-color:var(--ink)}
.scrollcue{
  position:absolute;bottom:26px;left:var(--gutter);display:flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-45);
}
.scrollcue .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite}

/* ============================================================
   WORK — one full grid
   ============================================================ */
.work{padding:clamp(60px,9vw,110px) var(--gutter)}
.sec-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.sec-star{font-family:var(--bric);font-weight:800;font-size:24px;color:var(--accent)}
.sec-title{font-family:var(--bric);font-weight:800;font-size:clamp(2rem,5.5vw,3.6rem);letter-spacing:-.03em;line-height:1}
.sec-count{font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ink-45);margin-left:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:40px 28px}

/* project card */
.card{display:flex;flex-direction:column;gap:14px;color:var(--ink)}
.card:hover{color:var(--ink)}
.card-media{border:1.5px solid var(--b-14);border-radius:14px;overflow:hidden}
.card-media .frame{border:0;border-radius:0;aspect-ratio:4/5}
.card-media .frame img{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media .frame img{transform:scale(1.03)}
.card-meta{display:flex;flex-direction:column;gap:3px;padding-top:4px}
.card-title{font-family:var(--bric);font-weight:700;font-size:21px;letter-spacing:-.02em}
.card-cat{font-family:var(--mono);font-size:11.5px;letter-spacing:.03em;color:var(--ink-55)}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{padding:clamp(60px,9vw,120px) var(--gutter);border-top:2px solid var(--ink)}
.contact .eyebrow{letter-spacing:.2em;margin-bottom:18px}
.contact .eyebrow .rule{width:30px}
.contact-title{font-family:var(--bric);font-weight:800;font-size:clamp(2.4rem,8vw,5rem);letter-spacing:-.03em;line-height:.98;max-width:14ch}
.contact-mail{
  display:inline-block;margin-top:28px;font-family:var(--bric);font-weight:700;
  font-size:clamp(1.1rem,3vw,1.9rem);color:var(--accent);
  border-bottom:3px solid var(--accent);padding-bottom:2px;
}
.contact-mail:hover{color:var(--ink);border-color:var(--ink)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:28px;margin-top:48px}
.cg{display:flex;flex-direction:column;gap:5px}
.cg h5{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.16em;color:var(--ink-45);margin-bottom:4px;font-weight:600}
.cg div,.cg a{font-size:14.5px}
.cg div{color:var(--ink)}
.contact-foot{
  display:flex;align-items:center;justify-content:space-between;margin-top:60px;padding-top:24px;
  border-top:1px solid rgba(26,23,18,.15);font-family:var(--mono);font-size:12px;color:var(--ink-50);
}
.contact-foot img{width:40px;height:40px;object-fit:contain}

/* ============================================================
   PROJECT DETAIL
   ============================================================ */
.pbar{
  position:sticky;top:66px;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px var(--gutter);background:rgba(251,246,236,.9);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1.5px solid var(--b-10);
}
.pbar-back{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:var(--ink)}
.pbar-back:hover{color:var(--accent)}
.pbar-cat{font-family:var(--mono);font-size:12px;letter-spacing:.15em;color:var(--ink-50)}
.pbar-nav{display:flex;gap:8px}
.round{
  width:36px;height:36px;border-radius:50%;border:1.5px solid var(--ink);
  display:grid;place-items:center;color:var(--ink);font-size:15px;background:transparent;cursor:pointer;
}
.round.dis{border-color:var(--b-22);color:rgba(26,23,18,.3);pointer-events:none}

.phead{padding:44px var(--gutter) 30px}
.phead .eyebrow{gap:12px;letter-spacing:.14em;margin-bottom:16px}
.phead .eyebrow .rule{width:26px}
.phead h1{font-family:var(--bric);font-weight:800;font-size:clamp(2.6rem,8vw,5.4rem);letter-spacing:-.035em;line-height:.95}
.phead .cn{font-family:'Noto Serif SC',serif;font-size:18px;color:var(--ink-50);letter-spacing:.12em;margin-top:10px}

.plead{padding:0 var(--gutter);display:flex;flex-direction:column;gap:14px;margin-bottom:44px}
.plead p{font-size:19px;color:var(--ink-80);line-height:1.7;padding-left:18px}
.plead p:first-child{border-left:3px solid var(--accent)}

.pbody{padding:0 var(--gutter);display:flex;flex-direction:column;gap:clamp(28px,5vw,56px)}

/* block: text */
.b-text{max-width:780px;display:flex;flex-direction:column;gap:12px}
.b-head{display:flex;align-items:center;gap:13px;margin:6px 0 2px}
.b-head .tick{width:16px;height:16px;background:var(--accent);border-radius:4px;transform:rotate(-8deg);flex:none}
.b-head h3{font-family:var(--bric);font-weight:700;font-size:clamp(21px,2.8vw,32px);letter-spacing:-.02em;line-height:1.05}
.b-text p{font-size:17px;color:var(--ink-72);max-width:64ch}

/* block: grid */
.b-grid,.b-cards{display:flex;flex-direction:column;gap:clamp(16px,2.4vw,26px)}
.b-grid-row{display:flex;gap:16px;align-items:flex-start;justify-content:center}
/* Each cell's width is proportional to its image ratio, so images in a row share
   the same height and the row fills the full content width. */
.b-cell{flex:var(--ar,1) 1 0;min-width:0}
.b-grid-row .frame{width:100%}

/* block: cards */
.ucard{display:flex;flex-direction:column;gap:12px}
.ucard-meta{display:flex;flex-direction:column;gap:5px}
.ucard-h{display:flex;align-items:center;gap:8px}
.ucard-sw{width:14px;height:14px;border-radius:50%;border:1px solid var(--b-22);flex:none}
.ucard-name{font-family:var(--bric);font-weight:700;font-size:16px}
.ucard-cn{font-family:'Noto Serif SC',serif;font-size:13px;color:var(--ink-50);letter-spacing:.08em}
.ucard-body{font-size:13.5px;color:var(--ink-66);line-height:1.55}

/* block: duo */
.b-duo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,4vw,48px);align-items:center}
.b-duo .txt{display:flex;flex-direction:column;gap:12px;align-self:center}
.b-duo .txt p{font-size:16px;color:var(--ink-72)}

/* block: video */
.b-video{position:relative;border-radius:14px;overflow:hidden;background:#000}
.b-video video{width:100%;height:100%;object-fit:cover;display:block}

/* block: pdf */
.b-pdf{width:100%;height:82vh;border:1px solid var(--b-12);border-radius:14px;background:#fff}
.b-pdf-missing{
  border:1.5px dashed rgba(26,23,18,.3);border-radius:14px;padding:44px 24px;text-align:center;
  font-family:var(--mono);font-size:13px;color:var(--ink-55);background:rgba(181,70,100,.06);
}

/* prev / next footer */
.pfoot{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:70px var(--gutter) 100px}
.pfoot-link{display:flex;flex-direction:column;gap:6px;padding:22px 24px;border-radius:16px;border:2px solid var(--ink);color:var(--ink);text-decoration:none}
.pfoot-link:hover{color:var(--ink);background:var(--accent-tint)}
.pfoot-link.next{text-align:right}
.pfoot-sub{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-50)}
.pfoot-title{font-family:var(--bric);font-weight:700;font-size:20px;letter-spacing:-.02em}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:720px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-aside{width:100%;max-width:280px;justify-self:start}
  .portrait{max-width:250px}
  .b-duo{grid-template-columns:1fr}
  .pfoot{grid-template-columns:1fr}
  .nav{gap:10px}
  .nav-links{gap:14px}
}
@media (max-width:520px){
  .nav-links .nav-link{display:none}
  .nav-links .nav-link[data-scroll="work-section"]{display:inline}
}

/* ============================================================
   CV / RESUME BUTTON · HERO CONTACT · BACK-TO-TOP · CV MODAL
   ============================================================ */
.btn-cv{
  font-family:var(--body);font-size:12.5px;font-weight:700;letter-spacing:.04em;
  padding:8px 16px;border-radius:999px;cursor:pointer;
  background:var(--accent);color:var(--inverse);border:1.5px solid var(--accent);transition:.2s;
}
.btn-cv:hover{background:var(--ink);border-color:var(--ink);color:var(--inverse)}
.btn-cv--big{font-size:14px;padding:12px 24px;margin-top:24px}
/* hero CV button — sits under the name, left-aligned */
.btn-cv--hero{
  display:inline-flex;margin:16px 0 2px;
  font-size:13.5px;font-weight:700;padding:10px 22px;border-radius:999px;
}

/* hero contact block (under the language pills) */
.hero-contact{
  margin-top:18px;display:flex;flex-direction:column;gap:4px;text-align:center;
  font-family:var(--mono);font-size:11.5px;line-height:1.5;word-break:break-word;
}
.hero-contact a{color:var(--ink-72)}
.hero-contact a:hover{color:var(--accent)}
.hero-contact span{color:var(--ink-55)}

/* back-to-top */
.to-top{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;background:none;border:0;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--ink-55);
}
.to-top:hover{color:var(--accent)}
.to-top-arrow{width:15px;height:15px;display:inline-block;vertical-align:-2px}

/* CV modal (in-page PDF viewer) */
.cv-modal{
  position:fixed;inset:0;z-index:400;display:none;align-items:center;justify-content:center;
  padding:clamp(12px,4vw,48px);background:rgba(26,23,18,.55);backdrop-filter:blur(4px);
}
.cv-modal.open{display:flex}
.cv-dialog{
  width:min(960px,100%);height:min(90vh,100%);background:var(--paper);border-radius:16px;
  overflow:hidden;display:flex;flex-direction:column;border:1.5px solid var(--ink);
}
.cv-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1.5px solid var(--b-14)}
.cv-title{font-family:var(--bric);font-weight:700;font-size:16px}
.cv-tools{display:flex;align-items:center;gap:8px}
.cv-open,.cv-close{
  width:34px;height:34px;border-radius:50%;border:1.5px solid var(--ink);
  display:grid;place-items:center;background:transparent;color:var(--ink);cursor:pointer;font-size:16px;text-decoration:none;
}
.cv-open:hover,.cv-close:hover{background:var(--ink);color:var(--inverse)}
.cv-body{position:relative;flex:1;min-height:0}
.cv-frame{width:100%;height:100%;border:0;background:#fff}
.cv-status{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--mono);font-size:14px;color:var(--ink-55)}