:root{
  --forest:#123524; --forest-2:#0c2518; --emerald:#1f6b40; --gold:#c9a24c; --gold-2:#ead79b; --gold-ink:#8a6a1f;
  --ivory:#f8f4ea; --paper:#fffdf8; --tint:#efe9d8; --ink:#17231c; --muted:#56655b; --line:rgba(201,162,76,.38);
  --serif:'Cormorant Garamond','Noto Serif Thai',serif; --serif-th:'Noto Serif Thai','Cormorant Garamond',serif; --sans:'Noto Sans Thai',system-ui,sans-serif;
  --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
html[data-lang=th] .en,html[data-lang=en] .th{display:none!important}
body{margin:0;font:400 17px/1.8 var(--sans);color:var(--ink);background:var(--ivory);-webkit-font-smoothing:antialiased;padding-bottom:0}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{width:min(1180px,100% - 40px);margin-inline:auto}
.narrow{width:min(820px,100% - 40px)}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 14px;z-index:99;border-radius:8px}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--serif-th);font-weight:600;line-height:1.4;margin:0;letter-spacing:0}
p{margin:0}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.6em;min-height:50px;padding:.55em 1.5em;border-radius:999px;font:600 16px/1.2 var(--sans);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .15s,background .2s,box-shadow .2s}
.btn svg{width:20px;height:20px;fill:currentColor}
.btn:hover{transform:translateY(-1px)}
.btn-gold{background:linear-gradient(180deg,#e0bd66,#c09a43);color:#2a1f05;box-shadow:0 6px 18px -8px rgba(201,162,76,.9)}
.btn-gold:hover{background:linear-gradient(180deg,#e8c973,#c9a24c)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-line:hover{background:rgba(255,255,255,.1)}
.btn-green{background:var(--forest);color:#fff}
.btn-green:hover{background:var(--emerald)}
.btn-ghost{background:transparent;border-color:var(--forest);color:var(--forest)}
.btn-sm{min-height:42px;padding:.4em 1.1em;font-size:15px}

/* header */
.announce{background:var(--gold);color:#2a1f05;text-align:center;padding:8px 16px;font-weight:600;font-size:15px;line-height:1.5}
.site-header{position:sticky;top:0;z-index:50;background:rgba(12,37,24,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:18px;height:72px}
.brand img{height:54px;width:auto}
.nav{display:flex;gap:26px}
.nav a{color:#efe8d2;text-decoration:none;font-size:15.5px;font-weight:500;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-color:var(--gold)}
.bar-actions{display:flex;align-items:center;gap:12px}
.lang{background:transparent;border:1px solid var(--line);color:var(--gold-2);border-radius:999px;padding:6px 14px;font:600 14px var(--sans);cursor:pointer;min-width:52px}
.burger{display:none;background:none;border:0;width:44px;height:44px;padding:10px;cursor:pointer}
.burger i{display:block;height:2px;background:var(--gold-2);margin:6px 0;transition:.2s}

/* hero */
.hero{background:radial-gradient(1200px 600px at 85% 20%,#1d4a31 0%,transparent 60%),var(--forest);color:#fff;padding:56px 0 84px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.kicker{color:var(--gold-2);font-size:16px;margin-bottom:18px;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:44px;height:1px;background:var(--gold)}
.hero h1{text-wrap:balance;font-size:clamp(28px,3.9vw,48px);line-height:1.38;font-weight:700}
.hero h1 em{font-style:normal;color:var(--gold-2);font-weight:600;display:inline-block;margin-top:.15em}
.hero .lead{margin:22px 0 30px;max-width:34em;color:#d9e3da;font-size:18px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.facts{list-style:none;padding:0;margin:38px 0 0;display:grid;grid-template-columns:repeat(3,auto);gap:0;justify-content:start}
.facts li{padding:0 28px;border-left:1px solid var(--line);display:flex;flex-direction:column;line-height:1.5}
.facts li:first-child{padding-left:0;border-left:0}
.facts b{font-family:var(--serif-th);color:var(--gold-2);font-weight:600;font-size:16px}
.facts span{font-size:15px;color:#cfdcd2}
.hero-art{position:relative;justify-self:center;width:min(380px,100%)}
.arch{border-radius:999px 999px 18px 18px;overflow:hidden;aspect-ratio:3/4.15;border:1px solid var(--gold);padding:10px;background:linear-gradient(160deg,rgba(201,162,76,.25),transparent)}
.arch img{width:100%;height:100%;object-fit:cover;object-position:50% 78%;border-radius:999px 999px 10px 10px}
.assay{position:absolute;left:-46px;bottom:34px;width:210px;background:rgba(8,26,17,.92);border:1px solid var(--gold);border-radius:12px;padding:14px 16px;font-family:var(--sans);box-shadow:0 18px 40px -16px #000}
.assay-top{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--gold-2);margin-bottom:8px}
.assay-top i{width:8px;height:8px;border-radius:50%;background:#53d38a;box-shadow:0 0 0 4px rgba(83,211,138,.2)}
.assay-row{display:flex;justify-content:space-between;align-items:baseline;border-top:1px solid rgba(201,162,76,.2);padding:6px 0;color:#b9c8bd;font-size:14px}
.assay-row b{font:600 22px var(--serif);color:#fff;font-variant-numeric:tabular-nums}
.assay-bar{height:5px;border-radius:3px;background:rgba(255,255,255,.12);margin-top:8px;overflow:hidden}
.assay-bar i{display:block;height:100%;width:94.98%;background:linear-gradient(90deg,#b88a2e,#ecd48c);transform-origin:left;animation:fill 1.6s .4s cubic-bezier(.2,.7,.2,1) both}
@keyframes fill{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* pillars */
.pillars{background:var(--paper);border-bottom:1px solid var(--line)}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.pillar-grid>div{padding:34px 34px;border-left:1px solid var(--line)}
.pillar-grid>div:first-child{border-left:0;padding-left:0}
.p-title{font-size:24px;color:var(--forest);margin-bottom:6px}
.pillar-grid p{color:var(--muted);font-size:16px;line-height:1.7}

/* sections */
.section{padding:88px 0}
.section.tint{background:var(--tint)}
.section.dark{background:var(--forest);color:#fff}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head.left{text-align:left;margin:0 0 30px;max-width:none}
.sec-head h2{font-size:clamp(26px,3.3vw,38px);color:var(--forest)}
.dark .sec-head h2{color:#fff}
.sec-head p{margin-top:12px;color:var(--muted)}
.dark .sec-head p{color:#cddbd0}

/* ledger */
.ledger{list-style:none;margin:0;padding:0;border-top:1.5px solid var(--forest)}
.ledger li{display:grid;grid-template-columns:260px 1fr 90px;gap:24px;align-items:center;padding:22px 6px;border-bottom:1px solid rgba(18,53,36,.18);transition:background .2s}
.ledger li:hover{background:rgba(201,162,76,.1)}
.l-name{font:600 22px/1.4 var(--serif-th);color:var(--forest)}
.l-desc{color:var(--muted);font-size:16.5px;line-height:1.7}
.l-mark{justify-self:end;font:600 34px/1 var(--serif);color:var(--gold-ink)}

/* process */
.process-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.process-photos{position:relative;height:560px}
.ph{margin:0;position:absolute;border-radius:var(--r);overflow:hidden;border:1px solid var(--gold);box-shadow:0 26px 50px -24px #000}
.ph img{width:100%;height:100%;object-fit:cover}
.ph-a{width:62%;height:76%;left:0;top:0}
.ph-b{width:56%;height:62%;right:0;bottom:0}
.steps{list-style:none;counter-reset:s;margin:0;padding:0}
.steps li{counter-increment:s;position:relative;padding:0 0 26px 76px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:50px;height:50px;border-radius:50%;border:1px solid var(--gold);display:grid;place-items:center;font:600 24px var(--serif);color:var(--gold-2)}
.steps li:not(:last-child)::after{content:"";position:absolute;left:25px;top:56px;bottom:6px;width:1px;background:var(--line)}
.steps h3{font-size:20px;margin-bottom:2px;color:#fff}
.steps p{color:#cddbd0;font-size:16.5px;line-height:1.7}

/* gallery */
.tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.tab{background:transparent;border:1px solid rgba(18,53,36,.3);color:var(--forest);border-radius:999px;padding:8px 20px;font:500 15.5px var(--sans);cursor:pointer;min-height:42px}
.tab.on{background:var(--forest);color:#fff;border-color:var(--forest)}
.masonry{columns:4 220px;column-gap:14px}
.gi{display:block;margin:0 0 14px;break-inside:avoid;border-radius:12px;overflow:hidden;background:var(--tint);position:relative;cursor:zoom-in}
.gi img{width:100%;transition:transform .5s}
.gi:hover img{transform:scale(1.04)}
.gi.off{display:none}

/* visit */
.visit-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
address{font-style:normal;color:var(--ink);margin-bottom:22px;line-height:1.8}
address b{font-family:var(--serif-th);font-size:19px;color:var(--forest)}
.visit-list{margin:0 0 26px;border-top:1px solid rgba(18,53,36,.25)}
.visit-list>div{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid rgba(18,53,36,.15)}
.visit-list dt{font-weight:600;color:var(--gold-ink)}
.visit-list dd{margin:0}
.visit-list a{font-weight:600;text-decoration:none}
.map{border-radius:var(--r);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:#ddd}
.map iframe{width:100%;height:100%;border:0}
.route{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.route a{border-radius:10px;overflow:hidden;border:1px solid var(--line);aspect-ratio:3/4;cursor:zoom-in}
.route img{width:100%;height:100%;object-fit:cover}

/* faq */
.faq details{border-bottom:1px solid rgba(18,53,36,.2)}
.faq details:first-child{border-top:1.5px solid var(--forest)}
.faq summary{list-style:none;cursor:pointer;padding:20px 40px 20px 0;font:600 19px/1.5 var(--serif-th);color:var(--forest);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font:400 28px var(--serif);color:var(--gold-ink);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{padding:0 40px 22px 0;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.direct{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line)}
.direct a{padding:18px 4px;border-bottom:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column;line-height:1.5}
.direct a:nth-child(odd){padding-right:16px}
.direct small{color:var(--gold-2);font-size:14px}
.direct b{font:600 20px var(--serif-th);color:#fff}
.direct a:hover b{color:var(--gold-2)}
.lead-form{background:var(--paper);color:var(--ink);border-radius:20px;padding:30px;display:grid;gap:16px;box-shadow:0 30px 60px -30px #000;border:1px solid var(--gold)}
.lead-form label{display:grid;gap:6px;font-weight:600;font-size:15px;color:var(--forest)}
.lead-form input,.lead-form select,.lead-form textarea{font:400 16px var(--sans);padding:12px 14px;border:1px solid rgba(18,53,36,.3);border-radius:10px;background:#fff;color:var(--ink);width:100%;min-height:48px}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{outline:3px solid rgba(201,162,76,.5);border-color:var(--gold)}
.lead-form .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.lead-form .btn{justify-content:center;width:100%}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-msg{min-height:1.4em;font-weight:600;text-align:center}
.form-msg.ok{color:#17703d}.form-msg.err{color:#a8321f}
.fine{font-size:13.5px;color:var(--muted);text-align:center;line-height:1.6}

/* footer + dock */
.site-footer{background:var(--forest-2);color:#cddbd0;padding:44px 0 40px}
.foot{display:grid;justify-items:center;text-align:center;gap:14px}
.foot img{height:80px;width:auto}
.foot .small{font-size:14px;color:#9fb3a5}
.foot a{color:var(--gold-2)}
.dock{display:none}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(6,18,12,.94);z-index:100;display:grid;place-items:center;padding:20px}
.lightbox[hidden]{display:none}
.lightbox figure{margin:0;max-width:min(92vw,820px);text-align:center}
.lightbox img{max-height:80vh;width:auto;margin:auto;border-radius:10px}
.lightbox figcaption{color:#efe8d2;margin-top:12px}
.lb-x,.lb-nav{position:absolute;background:rgba(255,255,255,.1);border:1px solid var(--line);color:#fff;border-radius:50%;width:48px;height:48px;font-size:28px;cursor:pointer;line-height:1}
.lb-x{top:16px;right:16px}.lb-prev{left:14px;top:50%}.lb-next{right:14px;top:50%}

/* responsive */
@media (max-width:960px){
  .nav{position:fixed;top:72px;left:0;right:0;background:var(--forest-2);flex-direction:column;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);transform:translateY(-120%);transition:transform .3s;visibility:hidden}
  .nav.open{transform:none;visibility:visible}
  .nav a{padding:14px 0;border-bottom:1px solid rgba(201,162,76,.18);font-size:17px}
  .burger{display:block}
  .hide-sm{display:none}
  .hero{padding:36px 0 64px}
  .hero-grid,.process-grid,.visit-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .hero-art{width:min(340px,86%);justify-self:center;margin-top:8px}
  .assay{left:-14px;bottom:24px;width:190px}
  .section{padding:64px 0}
  .ledger li{grid-template-columns:1fr 60px;gap:4px 14px}
  .l-name{grid-column:1}.l-mark{grid-row:1;grid-column:2;font-size:28px}.l-desc{grid-column:1/-1}
  .process-photos{height:440px;max-width:420px;margin-inline:auto;width:100%}
  .pillar-grid{grid-template-columns:1fr}
  .pillar-grid>div{border-left:0;border-top:1px solid var(--line);padding:22px 0}
  .pillar-grid>div:first-child{border-top:0}
  .dock{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--forest-2);border-top:1px solid var(--gold);padding-bottom:env(safe-area-inset-bottom)}
  .dock a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 4px;color:var(--gold-2);text-decoration:none;font-size:13.5px;font-weight:600}
  .dock a:first-child{background:var(--gold);color:#2a1f05}
  .dock svg{width:22px;height:22px;fill:currentColor}
  body{padding-bottom:68px}
}
@media (max-width:560px){
  body{font-size:16.5px}
  .wrap{width:calc(100% - 32px)}
  .facts{grid-template-columns:1fr;gap:10px}
  .facts li{padding:0;border-left:0;flex-direction:row;gap:10px;align-items:baseline}
  .cta-row .btn{width:100%;justify-content:center}
  .lead-form{padding:22px 18px}
  .lead-form .two{grid-template-columns:1fr}
  .direct{grid-template-columns:1fr}
  .masonry{columns:2 140px;column-gap:10px}
  .gi{margin-bottom:10px}
  .route{grid-template-columns:repeat(3,1fr);gap:8px}
  .visit-list>div{grid-template-columns:78px 1fr}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}