/* Maison LUK — site styles */
:root{
  --paper:#EFEBE1;
  --paper-2:#EAE5D9;
  --ink:#18211D;
  --stone:#6B6E66;
  --stone-light:#9A9C92;
  --pine:#2F4B3B;
  --pine-deep:#22392C;
  --hairline:#D2CBBB;
  --maxw:1080px;
  --serif:'Cormorant Garamond',Georgia,serif;
  --cjk:'Noto Serif TC','Songti TC',serif;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-weight:500;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* language visibility */
html[lang="en"] .zh{display:none;}
html[lang="zh-Hant"] .en{display:none;}
.zh{font-family:var(--cjk);letter-spacing:.02em;}

/* skip link */
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);
  padding:.6rem 1rem;z-index:100;border-radius:0;}
.skip:focus{left:.5rem;top:.5rem;}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--pine);outline-offset:3px;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.4rem,5vw,3rem);}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:40;background:rgba(239,235,225,.86);
  backdrop-filter:saturate(120%) blur(8px);border-bottom:1px solid var(--hairline);}
.site-head .wrap{display:flex;align-items:baseline;justify-content:space-between;
  padding-top:1.05rem;padding-bottom:1.05rem;}
.wordmark{font-family:var(--serif);font-weight:600;font-size:1rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--ink);text-decoration:none;}
.wordmark .lu{font-family:var(--cjk);letter-spacing:0;color:var(--pine);margin-left:.4em;
  font-size:1.05rem;}

/* language toggle */
.lang{display:inline-flex;align-items:center;gap:.1rem;font-family:var(--serif);}
.lang button{background:none;border:none;cursor:pointer;color:var(--stone-light);
  font-family:inherit;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;
  padding:.25rem .45rem;transition:color .25s ease;}
.lang button.zhbtn{font-family:var(--cjk);letter-spacing:.06em;text-transform:none;font-size:.92rem;}
.lang button[aria-pressed="true"]{color:var(--pine);}
.lang .sep{color:var(--hairline);font-size:.8rem;}

/* ---------- hero ---------- */
.hero{padding:clamp(4.5rem,13vw,9rem) 0 clamp(3.5rem,9vw,6rem);}
.tagline{color:var(--stone);font-weight:500;font-size:clamp(1.05rem,2.2vw,1.3rem);
  line-height:1.6;max-width:26ch;}
.tagline.zh{max-width:30ch;line-height:1.9;}
.rule{width:46px;height:1.5px;background:var(--pine);border:none;margin:1.7rem 0 1.9rem;}
.hero-line{font-weight:400;font-size:clamp(2rem,5.4vw,3.5rem);line-height:1.2;
  letter-spacing:.005em;max-width:15ch;}
.hero-line.zh{font-weight:400;line-height:1.5;max-width:17ch;letter-spacing:.04em;}
.accent{color:var(--pine);font-style:italic;}
.zh .accent{font-style:normal;font-weight:600;}
.hero-note{margin-top:2.4rem;font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--stone-light);}
.hero-note.zh{letter-spacing:.12em;text-transform:none;font-size:.95rem;}

/* ---------- section shell ---------- */
.section{padding:clamp(3.5rem,9vw,6.5rem) 0;border-top:1px solid var(--hairline);}
.eyebrow{font-size:.72rem;font-weight:600;letter-spacing:.34em;text-transform:uppercase;
  color:var(--pine);margin-bottom:1.4rem;}
.eyebrow.zh{letter-spacing:.14em;text-transform:none;font-size:.95rem;}
.section-head{font-weight:400;font-size:clamp(1.6rem,3.6vw,2.35rem);line-height:1.25;
  letter-spacing:.005em;max-width:20ch;margin-bottom:1.6rem;}
.section-head.zh{line-height:1.5;letter-spacing:.04em;}
.prose{font-size:clamp(1.02rem,1.5vw,1.12rem);line-height:1.8;color:var(--ink);
  max-width:60ch;}
.prose.zh{line-height:2;letter-spacing:.02em;}
.prose + .prose{margin-top:1rem;}

/* principles */
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:2.6rem;}
.principle{border-top:1px solid var(--hairline);padding-top:1.1rem;}
.principle h3{font-size:.82rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);margin-bottom:.6rem;}
.principle h3.zh{letter-spacing:.08em;text-transform:none;font-size:1.02rem;}
.principle p{font-size:.95rem;line-height:1.7;color:var(--stone);}
.principle p.zh{line-height:1.9;}
@media (max-width:720px){.principles{grid-template-columns:1fr;gap:0;}
  .principle{padding:1.1rem 0;}}

/* ---------- ledger ---------- */
.ledger-head{margin-bottom:.6rem;}
.ledger{margin-top:1.8rem;}
.pillar{display:grid;grid-template-columns:56px 1fr;gap:1.4rem;
  padding:1.7rem 0;border-top:1px solid var(--hairline);}
.pillar:last-of-type{border-bottom:1px solid var(--hairline);}
.pillar .num{font-family:var(--serif);font-weight:300;font-size:2rem;line-height:1;
  color:var(--pine);letter-spacing:.03em;}
.pillar .pname{font-size:1.12rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink);}
.pillar .pname.zh{letter-spacing:.14em;text-transform:none;font-size:1.24rem;}
.pillar .psub{font-style:italic;color:var(--stone);font-size:1.02rem;margin-top:.15rem;}
.pillar .psub.zh{font-style:normal;font-size:1rem;}
.pillar .pdesc{color:var(--stone);font-size:.98rem;line-height:1.7;margin-top:.5rem;max-width:58ch;}
.pillar .pdesc.zh{line-height:1.9;}

/* bespoke beat */
.bespoke{text-align:center;margin-top:3.2rem;padding-top:2.4rem;border-top:1px solid var(--hairline);}
.bespoke .be{font-size:.72rem;font-weight:600;letter-spacing:.36em;text-transform:uppercase;
  color:var(--pine);margin-bottom:1.2rem;}
.bespoke .be .num{font-family:var(--serif);}
.bespoke .be.zh{letter-spacing:.16em;font-size:.95rem;}
.bespoke .bl{font-weight:400;font-size:clamp(1.5rem,3.4vw,2.15rem);line-height:1.3;letter-spacing:.01em;}
.bespoke .bl.zh{line-height:1.5;letter-spacing:.05em;}
.bespoke .bl .accent{font-style:italic;color:var(--pine);}
.bespoke .bl.zh .accent{font-style:normal;font-weight:600;}

/* line we hold */
.line-hold .prose{color:var(--stone);}

/* ---------- contact / closer ---------- */
.closer{text-align:center;padding:clamp(4rem,10vw,7rem) 0 clamp(2.5rem,6vw,4rem);
  border-top:1px solid var(--hairline);}
.closer .stays{font-weight:400;font-style:italic;font-size:clamp(1.8rem,4.2vw,2.6rem);
  color:var(--ink);letter-spacing:.01em;}
.closer .stays.zh{font-style:normal;letter-spacing:.08em;}
.closer-rule{width:46px;height:1.5px;background:var(--pine);border:none;margin:2rem auto;}
.closer .intro-note{color:var(--stone);font-size:1rem;letter-spacing:.04em;margin-bottom:2.4rem;}

/* by-introduction email */
.closer .closer-us{font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--stone);margin-bottom:.7rem;}
.closer .closer-us.zh{letter-spacing:.12em;text-transform:none;font-size:.98rem;}
.closer .intro-note{color:var(--stone-light);font-size:.95rem;letter-spacing:.04em;margin-bottom:1.1rem;}
.intro-mail{font-family:var(--serif);}
.intro-mail a{font-size:clamp(1.1rem,2.4vw,1.4rem);letter-spacing:.08em;color:var(--pine);
  text-decoration:none;border-bottom:1px solid var(--hairline);padding-bottom:.15rem;
  transition:border-color .25s ease;}
.intro-mail a:hover{border-color:var(--pine);}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--hairline);padding:2.6rem 0;background:var(--paper-2);}
.site-foot .wrap{display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center;
  justify-content:space-between;}
.foot-mark{font-family:var(--serif);font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  font-size:.9rem;color:var(--ink);}
.foot-mark .lu{font-family:var(--cjk);letter-spacing:0;color:var(--pine);margin-left:.35em;}
.foot-meta{font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--stone-light);}
.foot-meta.zh{letter-spacing:.1em;text-transform:none;font-size:.85rem;}
.foot-links{display:flex;gap:1.4rem;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;}
.foot-links.zh{letter-spacing:.08em;text-transform:none;font-size:.85rem;}
.foot-links a{color:var(--stone);text-decoration:none;transition:color .2s ease;}
.foot-links a:hover{color:var(--pine);}

/* ---------- policy pages ---------- */
.doc{padding:clamp(3rem,8vw,5rem) 0 clamp(4rem,10vw,7rem);}
.doc h1{font-weight:400;font-size:clamp(1.9rem,4vw,2.6rem);letter-spacing:.01em;margin-bottom:.4rem;}
.doc h1.zh{letter-spacing:.06em;}
.doc .updated{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--stone-light);margin-bottom:2.4rem;}
.doc .updated.zh{letter-spacing:.08em;text-transform:none;}
.doc h2{font-weight:600;font-size:1.15rem;letter-spacing:.06em;color:var(--ink);
  margin:2.2rem 0 .7rem;padding-top:1.4rem;border-top:1px solid var(--hairline);}
.doc h2.zh{letter-spacing:.04em;}
.doc p{font-size:1.02rem;line-height:1.8;color:var(--ink);max-width:64ch;margin-bottom:.8rem;}
.doc p.zh{line-height:2;}
.doc p.muted{color:var(--stone);font-size:.95rem;}
.doc a{color:var(--pine);}
.back{display:inline-block;margin-top:2.6rem;font-size:.75rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--stone);text-decoration:none;}
.back.zh{letter-spacing:.08em;text-transform:none;font-size:.9rem;}
.back:hover{color:var(--pine);}

/* ---------- motion (progressive enhancement) ---------- */
html.reveal-on .reveal{opacity:0;transform:translateY(14px);
  transition:opacity .8s ease,transform .8s ease;}
html.reveal-on .reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html.reveal-on .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
}