/* ============================================================
   NEO GENS — Editorial Minimal System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,300;0,400;0,500;0,600;1,400&family=Space+Mono:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+Thai:wght@300;400;500;600&family=IBM+Plex+Sans+Thai:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root{
  --paper:#EDEAE1;
  --paper-2:#E4E0D5;
  --ink:#19140F;
  --ink-soft:#4A443B;
  --line:#C7C1B3;
  --accent:#7A4A2B;       /* warm sienna */
  --max:1440px;
  --gut:clamp(20px,4vw,64px);
  --serif:'Spectral',Georgia,serif;
  --display:'Space Grotesk','Helvetica Neue',Arial,sans-serif;
  --mono:'Space Mono','SFMono-Regular',monospace;
  --t:0.6s cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  line-height:1.55;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--ink);color:var(--paper)}

/* ---------- type helpers ---------- */
.mono{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:11px;
  line-height:1.4;
  color:var(--ink-soft);
}
.display{
  font-family:var(--display);
  font-weight:500;
  line-height:.98;
  letter-spacing:-.03em;
}
em{font-style:italic;color:var(--accent)}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.rule{border:0;border-top:1px solid var(--line)}
section{position:relative}

/* ============================================================
   HEADER
   ============================================================ */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:start;
  padding:20px var(--gut) 14px;
  color:var(--ink);
}
.site-head a{color:var(--ink)}
.brand{display:inline-block;font-family:var(--display);font-size:28px;font-weight:700;letter-spacing:-.02em;line-height:.95}
.brand b{font-weight:700}
.brand span{display:block;font-family:var(--mono);font-size:9.5px;font-weight:400;letter-spacing:.18em;margin-top:7px;text-transform:uppercase;color:var(--ink-soft)}
.nav{display:flex;gap:28px;justify-content:center;padding-top:4px}
.nav a{position:relative;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase}
.nav a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:1px;background:currentColor;transition:width var(--t)}
.nav a:hover::after,.nav a.active::after{width:100%}
.head-meta{justify-self:end;text-align:right;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;line-height:1.6}
.menu-btn{display:none}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;min-height:100vh;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:6vh;padding-top:96px}
.hero > *{position:relative;z-index:2}
.hero .eyebrow{margin-bottom:clamp(14px,3vh,30px)}
.hero h1{
  font-size:clamp(54px,11.5vw,170px);
  font-weight:500;
}
.hero h1 .blk{font-weight:700}

/* hero background image grid */
.hero-bg{position:absolute;inset:0;z-index:0;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);gap:0}
.hero-bg span{background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-bg span:nth-child(1){background-image:url(hero-1.png)}
.hero-bg span:nth-child(2){background-image:url(hero-2.png)}
.hero-bg span:nth-child(3){background-image:url(hero-3.png)}
.hero-bg span:nth-child(4){background-image:url(hero-4.png)}
.hero-bg span:nth-child(5){background-image:url(hero-5.png)}
.hero-bg span:nth-child(6){background-image:url(hero-6.png)}
.hero-bg::after{content:"";position:absolute;inset:0;background:rgba(237,234,225,.78)}
@media(max-width:880px){.hero-bg{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(3,1fr)}}
.hero-sub{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;
  margin-top:clamp(28px,5vw,60px);align-items:end;
}
.hero-sub p{max-width:46ch;font-size:clamp(16px,1.4vw,21px);color:var(--ink-soft);font-weight:300}
.hero-sub .right{justify-self:end;text-align:right}

/* arrow link */
.alink{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;border-bottom:1px solid var(--ink);padding-bottom:3px}
.alink .ar{transition:transform var(--t)}
.alink:hover .ar{transform:translateX(6px)}

/* ============================================================
   GENERIC SECTIONS
   ============================================================ */
.block{padding:clamp(70px,11vw,160px) 0}
.kicker{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid var(--line);padding-top:14px;margin-bottom:clamp(34px,5vw,60px)}
.big{font-family:var(--display);font-size:clamp(30px,5.2vw,72px);font-weight:500;line-height:1.05;letter-spacing:-.03em;max-width:18ch}
.lede{font-family:var(--display);font-size:clamp(20px,2.6vw,34px);font-weight:400;line-height:1.28;letter-spacing:-.02em;max-width:24ch}

/* philosophy two-col */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,90px);align-items:start}
.split .body p{font-size:clamp(16px,1.3vw,19px);color:var(--ink-soft);font-weight:300;margin-bottom:1.2em;max-width:52ch}
.split .body p:last-child{margin-bottom:0}

/* triad of values */
.triad{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:60px}
.triad>div{background:var(--paper);padding:clamp(26px,3vw,42px);min-height:230px;display:flex;flex-direction:column;justify-content:space-between;transition:background var(--t)}
.triad>div:hover{background:var(--paper-2)}
.triad h3{font-family:var(--display);font-size:clamp(24px,2.4vw,34px);font-weight:500;letter-spacing:-.02em}
.triad .num{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--accent)}
.triad p{font-size:15px;color:var(--ink-soft);font-weight:300;max-width:34ch}

/* services list */
.svc{border-top:1px solid var(--line)}
.svc-item{display:grid;grid-template-columns:64px 1fr auto;gap:clamp(16px,3vw,50px);align-items:center;padding:clamp(26px,3.4vw,48px) 0;border-bottom:1px solid var(--line);transition:padding-left var(--t)}
.svc-item:hover{padding-left:18px}
.svc-item .idx{font-family:var(--mono);font-size:12px;color:var(--accent)}
.svc-item h3{font-family:var(--display);font-size:clamp(26px,3.6vw,50px);font-weight:500;letter-spacing:-.03em}
.svc-item .desc{font-size:15px;color:var(--ink-soft);font-weight:300;max-width:40ch;justify-self:end;text-align:right}

/* approach steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line);margin-top:50px}
.steps>div{background:var(--paper);padding:30px 18px 40px;min-height:200px;display:flex;flex-direction:column}
.steps .num{font-family:var(--mono);font-size:11px;color:var(--accent);margin-bottom:auto}
.steps h4{font-family:var(--display);font-size:20px;font-weight:500;margin:30px 0 8px}
.steps p{font-size:13.5px;color:var(--ink-soft);font-weight:300}

/* domains / fields */
.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,60px);margin-top:50px}
.field h3{font-family:var(--display);font-size:clamp(22px,2.3vw,30px);font-weight:500;letter-spacing:-.02em;margin-bottom:14px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.field p{font-size:15px;color:var(--ink-soft);font-weight:300}
.field ul{list-style:none;margin-top:18px}
.field li{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);padding:7px 0;border-bottom:1px dotted var(--line)}

/* big quote */
.quote{padding:clamp(80px,13vw,180px) 0}
.quote blockquote{font-family:var(--display);font-size:clamp(28px,4.4vw,58px);font-weight:500;line-height:1.14;letter-spacing:-.03em;max-width:20ch}
.quote cite{display:block;font-family:var(--mono);font-style:normal;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-top:34px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,80px);margin-top:50px}
.cline{display:block;border-top:1px solid var(--line);padding:20px 0}
.cline .mono{display:block;margin-bottom:6px}
.cline a,.cline span{font-size:clamp(20px,2.2vw,30px);font-weight:300}
.cta{font-family:var(--display);font-size:clamp(40px,8vw,110px);font-weight:500;line-height:.98;letter-spacing:-.04em;margin-top:20px}
.cta a{display:inline-flex;align-items:center;gap:.2em}
.cta a:hover{color:var(--accent)}

/* contact form */
.cform .cline input,.cform .cline textarea{
  width:100%;margin-top:10px;background:transparent;border:0;
  font-family:var(--serif);font-size:clamp(18px,2vw,26px);font-weight:300;
  color:var(--ink);padding:4px 0;resize:none;outline:none;
}
.cform .cline input::placeholder,.cform .cline textarea::placeholder{color:var(--line)}
.submit{
  margin-top:26px;background:var(--ink);color:var(--paper);border:0;cursor:pointer;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  padding:16px 28px;border-radius:40px;transition:background var(--t),transform var(--t);
}
.submit:hover{background:var(--accent);transform:translateY(-2px)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-foot{border-top:1px solid var(--ink);padding:40px var(--gut) 36px}
.foot-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding-bottom:50px}
.foot-top .big-mark{font-family:var(--display);font-size:clamp(34px,5vw,64px);font-weight:700;line-height:.9;letter-spacing:-.03em}
.foot-col h5{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:16px}
.foot-col a{display:block;font-size:15px;padding:5px 0;font-weight:300}
.foot-col a:hover{color:var(--accent)}
.foot-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:20px}

/* reveal animation */
.rv{opacity:0;transform:translateY(22px);transition:opacity .9s ease,transform .9s cubic-bezier(.16,1,.3,1)}
.rv.in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:880px){
  body{font-size:16px}
  .nav{display:none}
  .head-meta{display:none}
  .site-head{grid-template-columns:1fr auto;padding:16px var(--gut)}
  .brand-mark{height:40px}
  .menu-btn{display:block;justify-self:end;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;background:none;border:1px solid currentColor;color:inherit;padding:7px 12px;border-radius:30px;cursor:pointer}
  .nav.open{display:flex;position:fixed;inset:0;background:var(--ink);color:var(--paper);flex-direction:column;justify-content:center;align-items:center;gap:30px;mix-blend-mode:normal;z-index:60}
  .nav.open a{color:var(--paper);font-size:24px;font-family:var(--serif);text-transform:none;letter-spacing:0}
  .hero-sub{grid-template-columns:1fr;gap:24px}
  .hero-sub .right{justify-self:start;text-align:left}
  .split{grid-template-columns:1fr;gap:28px}
  .triad,.fields{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .svc-item{grid-template-columns:36px 1fr;gap:14px}
  .svc-item .desc{grid-column:1/-1;justify-self:start;text-align:left;margin-top:10px}
  .contact-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr}
}
@media(max-width:520px){
  .steps{grid-template-columns:1fr}
}

/* ============================================================
   LANGUAGE SWITCH
   ============================================================ */
.lang-switch{display:flex;gap:6px;align-items:center;margin-top:6px;justify-content:flex-end}
.lang-switch a{font-family:var(--mono);font-size:10px;letter-spacing:.1em;opacity:.55;text-transform:uppercase}
.lang-switch a.on{opacity:1;border-bottom:1px solid currentColor;padding-bottom:1px}
.lang-switch .sep{opacity:.4}
@media(max-width:880px){
  .lang-switch{display:none}
  .nav.open .lang-switch{display:flex;margin-top:14px}
  .nav.open .lang-switch a{font-size:14px;color:var(--paper)}
}

/* ============================================================
   THAI LANGUAGE OVERRIDES
   ============================================================ */
.lang-th{
  --serif:'Noto Serif Thai','Spectral',serif;
  --display:'IBM Plex Sans Thai','Space Grotesk',sans-serif;
  --mono:'IBM Plex Sans Thai','Space Mono',monospace;
}
.lang-th body,.lang-th{line-height:1.7}
.lang-th .mono{letter-spacing:.02em;font-weight:500}
.lang-th .hero h1,.lang-th .display{line-height:1.18;letter-spacing:0;font-weight:600}
.lang-th .hero h1 .blk{font-weight:700}
.lang-th .big{line-height:1.28;letter-spacing:0}
.lang-th .lede{line-height:1.5}
.lang-th .svc-item h3,.lang-th .triad h3,.lang-th .field h3,.lang-th .cta{letter-spacing:0;line-height:1.25}
.lang-th .quote blockquote{line-height:1.4;letter-spacing:0}
.lang-th .brand span{letter-spacing:.06em}
.lang-th .nav a,.lang-th .field li{letter-spacing:.02em}

/* English display headings kept on Thai pages */
.lang-th .en-head{font-family:'Space Grotesk','Helvetica Neue',Arial,sans-serif}
.lang-th .display.en-head,.lang-th .hero h1.en-head{line-height:1;letter-spacing:-.02em}
.lang-th .big.en-head{line-height:1.04;letter-spacing:-.02em}
.lang-th .lede.en-head{line-height:1.34;letter-spacing:0}
.lang-th .quote blockquote.en-head{line-height:1.14;letter-spacing:-.02em}
.lang-th .cta.en-head{line-height:1;letter-spacing:-.03em}
.lang-th .en-head em{font-style:italic}