/* ============================================================
   LUXURY STONE CARE — Black + Gold + White + Marble Gray
   ============================================================ */
:root{
  --black:#0B0B0C;
  --jet:#1A1A1C;
  --char:#222226;
  --gold:#C8A14B;
  --gold-soft:#D9BE7A;
  --gold-deep:#9A7A36;
  --white:#FFFFFF;
  --ivory:#F6F1E9;
  --marble:#E9E4DC;
  --marble-gray:#A8A8A8;
  --line:rgba(200,161,75,.25);
  --rule:rgba(255,255,255,.08);
  --shadow:0 30px 60px -25px rgba(0,0,0,.55), 0 12px 25px -10px rgba(0,0,0,.45);
  --serif:'Cormorant Garamond','Prata','Noto Serif Thai',serif;
  --display:'Playfair Display','Prata','Noto Serif Thai',serif;
  --thai:'IBM Plex Sans Thai','Sarabun','Prompt',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(200,161,75,.10), transparent 60%),
    radial-gradient(900px 700px at -10% 110%, rgba(200,161,75,.07), transparent 60%),
    linear-gradient(180deg,#0A0A0B 0%, #0E0E10 100%);
  color:var(--ivory);
  font-family:var(--thai);
  line-height:1.7;
  min-height:100vh;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='600'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.78  0 0 0 0 0.63  0 0 0 0 0.30  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  pointer-events:none;opacity:.7;mix-blend-mode:overlay;z-index:0;
}
main,header,footer,section{position:relative;z-index:1}

a{color:var(--gold-soft);text-decoration:none;transition:color .25s}
a:hover{color:var(--white)}

/* HEADER */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:linear-gradient(180deg,rgba(8,8,9,.92),rgba(8,8,9,.78));border-bottom:1px solid var(--line)}
.nav{max-width:1280px;margin:0 auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:14px;color:var(--ivory)}
.brand img{height:46px;width:auto;display:block;filter:drop-shadow(0 4px 12px rgba(200,161,75,.25))}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-family:var(--display);font-weight:600;font-size:20px;letter-spacing:.04em}
.brand-name .gold{color:var(--gold)}
.brand-tag{font-size:11px;letter-spacing:.32em;color:var(--marble-gray);text-transform:uppercase;margin-top:2px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;letter-spacing:.06em;color:var(--ivory);position:relative;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--gold);transition:width .3s}
.nav-links a:hover::after{width:100%}
.cta-call{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border:1px solid var(--gold);color:var(--gold);font-family:var(--display);letter-spacing:.08em;font-size:14px;background:linear-gradient(135deg,rgba(200,161,75,.06),rgba(200,161,75,.02));transition:all .3s}
.cta-call:hover{background:var(--gold);color:var(--black)}
@media(max-width:780px){.nav-links{display:none}}

/* HERO */
.hero{padding:90px 28px 80px;max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-style:italic;color:var(--gold);letter-spacing:.2em;font-size:13px;text-transform:uppercase;margin-bottom:22px}
.eyebrow::before,.eyebrow::after{content:"";height:1px;width:34px;background:var(--gold)}
.hero h1{font-family:var(--display);font-weight:500;font-size:clamp(38px,5.4vw,72px);line-height:1.05;letter-spacing:-.01em;color:var(--white);margin-bottom:24px}
.hero h1 em{font-style:italic;color:var(--gold);font-weight:400}
.hero-sub{font-size:17px;color:var(--marble);max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary,.btn-secondary{padding:15px 32px;font-family:var(--display);font-size:15px;letter-spacing:.1em;text-transform:uppercase;cursor:pointer;border:none;transition:all .3s;display:inline-flex;align-items:center;gap:10px}
.btn-primary{background:var(--gold);color:var(--black);box-shadow:0 12px 30px -10px rgba(200,161,75,.5)}
.btn-primary:hover{background:var(--gold-soft);transform:translateY(-2px)}
.btn-secondary{background:transparent;color:var(--ivory);border:1px solid var(--rule)}
.btn-secondary:hover{border-color:var(--gold);color:var(--gold)}
.hero-img{position:relative;aspect-ratio:4/5;overflow:hidden;border-radius:2px;box-shadow:var(--shadow)}
.hero-img::before{content:"";position:absolute;inset:14px;border:1px solid rgba(200,161,75,.45);pointer-events:none;z-index:2}
.hero-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1.2s}
.hero-img:hover img{transform:scale(1.04)}
.hero-img-cap{position:absolute;left:0;right:0;bottom:0;padding:18px 22px;z-index:3;background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));font-family:var(--display);font-style:italic;color:var(--gold-soft);font-size:14px;letter-spacing:.1em}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding:60px 22px 50px;gap:40px}}

/* SECTION */
section.block{max-width:1280px;margin:0 auto;padding:80px 28px}
.section-head{text-align:center;margin-bottom:56px}
.section-head .eyebrow{justify-content:center;display:inline-flex}
.section-head h2{font-family:var(--display);font-weight:500;color:var(--white);font-size:clamp(30px,3.6vw,46px);line-height:1.15;letter-spacing:-.01em}
.section-head h2 em{color:var(--gold);font-style:italic}
.section-head p{color:var(--marble-gray);max-width:640px;margin:18px auto 0;font-size:16px}

/* SERVICES */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.svc{position:relative;padding:36px 30px;background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.005));border:1px solid var(--rule);overflow:hidden;transition:transform .4s, border-color .4s}
.svc::before{content:"";position:absolute;left:0;top:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);transform:scaleX(0);transition:transform .5s;transform-origin:left}
.svc:hover{transform:translateY(-6px);border-color:var(--line)}
.svc:hover::before{transform:scaleX(1)}
.svc-num{font-family:var(--display);font-style:italic;color:var(--gold);font-size:14px;letter-spacing:.3em;margin-bottom:18px}
.svc h3{font-family:var(--display);font-weight:500;font-size:24px;color:var(--white);margin-bottom:10px;letter-spacing:.01em}
.svc p{color:var(--marble);font-size:15px}
.svc-img{aspect-ratio:5/3;overflow:hidden;margin:-36px -30px 24px;position:relative}
.svc-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 1s}
.svc:hover .svc-img img{transform:scale(1.06)}
.svc-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(11,11,12,.7))}
@media(max-width:900px){.services{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.services{grid-template-columns:1fr}}

/* GALLERY */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery a{position:relative;display:block;aspect-ratio:1/1;overflow:hidden}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s}
.gallery a:hover img{transform:scale(1.08)}
.gallery a::after{content:"";position:absolute;inset:0;border:1px solid transparent;transition:border-color .3s}
.gallery a:hover::after{border-color:var(--gold)}
@media(max-width:780px){.gallery{grid-template-columns:repeat(2,1fr)}}

/* CALCULATOR */
.calc{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));border:1px solid var(--line);padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.calc-form{display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--display);letter-spacing:.06em;color:var(--gold-soft);font-size:14px;text-transform:uppercase}
.field select,.field input{background:rgba(0,0,0,.45);color:var(--ivory);border:1px solid var(--rule);padding:14px 16px;font-family:var(--thai);font-size:15px;outline:none;transition:border-color .3s}
.field select:focus,.field input:focus{border-color:var(--gold)}
.calc-result{background:linear-gradient(160deg,rgba(200,161,75,.10),rgba(0,0,0,.4));border:1px solid var(--line);padding:34px;text-align:center}
.calc-result .label{font-family:var(--display);letter-spacing:.2em;color:var(--gold);font-size:13px;text-transform:uppercase;margin-bottom:14px}
.calc-result .price{font-family:var(--display);color:var(--white);font-size:46px;line-height:1.1}
.calc-result .price small{font-size:18px;color:var(--marble-gray);font-style:italic}
.calc-result .note{margin-top:14px;color:var(--marble-gray);font-size:13px}
.calc-result .cta-row{margin-top:20px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
@media(max-width:900px){.calc{grid-template-columns:1fr;padding:32px}}

/* AREAS */
.areas{display:flex;flex-wrap:wrap;gap:10px}
.area-pill{display:inline-block;padding:10px 18px;border:1px solid var(--rule);font-size:14px;color:var(--ivory);background:rgba(255,255,255,.02);transition:all .25s}
.area-pill:hover{border-color:var(--gold);color:var(--gold);background:rgba(200,161,75,.06)}
.nearby-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.nearby-card{padding:18px 22px;border:1px solid var(--rule);background:rgba(255,255,255,.02);display:flex;align-items:center;justify-content:space-between}
.nearby-card .n{font-family:var(--display);color:var(--white)}
.nearby-card .a{color:var(--gold);font-size:13px;letter-spacing:.1em}
@media(max-width:780px){.nearby-grid{grid-template-columns:1fr}}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:14px}
.faq details{border:1px solid var(--rule);padding:22px 26px;background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(255,255,255,.005));transition:border-color .3s}
.faq details[open]{border-color:var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;font-family:var(--display);font-size:19px;color:var(--white)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q-num{color:var(--gold);font-style:italic;font-size:14px;letter-spacing:.2em;margin-right:14px}
.faq summary::after{content:"+";color:var(--gold);font-size:24px;font-family:var(--display);transition:transform .3s}
.faq details[open] summary::after{content:"−"}
.faq .a{margin-top:14px;color:var(--marble);line-height:1.85;font-size:15px}
.faq .a a{color:var(--gold)}

/* REVIEWS */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.005));border:1px solid var(--rule);padding:0;overflow:hidden;display:flex;flex-direction:column;transition:transform .4s, border-color .4s}
.review:hover{transform:translateY(-4px);border-color:var(--line)}
.review-img{aspect-ratio:4/3;overflow:hidden}
.review-img img{width:100%;height:100%;object-fit:cover;transition:transform 1s}
.review:hover .review-img img{transform:scale(1.05)}
.review-body{padding:24px 26px}
.stars{color:var(--gold);letter-spacing:.2em;margin-bottom:10px;font-size:14px}
.review-body p{color:var(--marble);font-size:14.5px;font-style:italic;line-height:1.75;margin-bottom:14px}
.review-name{font-family:var(--display);color:var(--gold-soft);font-size:14px;letter-spacing:.06em}
.review-name span{color:var(--marble-gray);font-style:italic}
@media(max-width:900px){.reviews{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.reviews{grid-template-columns:1fr}}

/* MAP */
.map-wrap{border:1px solid var(--line);padding:8px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01))}
.map-wrap iframe{width:100%;height:420px;border:0;display:block;filter:grayscale(.4) contrast(1.05)}

/* CTA BAND */
.cta-band{margin:0 auto;max-width:1280px;padding:60px 28px;text-align:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(200,161,75,.06),rgba(0,0,0,0)),radial-gradient(600px 200px at 50% 0%, rgba(200,161,75,.10),transparent 60%)}
.cta-band h2{font-family:var(--display);color:var(--white);font-size:clamp(28px,3.4vw,42px);font-weight:500}
.cta-band h2 em{color:var(--gold);font-style:italic}
.cta-band p{color:var(--marble);margin:14px auto 26px;max-width:560px}
.cta-band .row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* FOOTER */
footer{background:linear-gradient(180deg,#070708,#0A0A0B);border-top:1px solid var(--line);padding:60px 28px 30px;margin-top:60px}
.foot{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot h4{font-family:var(--display);color:var(--gold);font-size:14px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:18px}
.foot p,.foot li,.foot a{color:var(--marble);font-size:14px;line-height:1.9}
.foot ul{list-style:none}
.foot a:hover{color:var(--gold)}
.foot .brand-name{font-size:22px;color:var(--white)}
.copy{max-width:1280px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--rule);color:var(--marble-gray);font-size:13px;text-align:center;letter-spacing:.1em}
@media(max-width:900px){.foot{grid-template-columns:1fr 1fr}}
@media(max-width:580px){.foot{grid-template-columns:1fr}}

/* FLOATING */
.float-contact{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-contact a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--gold);color:var(--black);box-shadow:0 16px 30px -8px rgba(0,0,0,.55);font-family:var(--display);font-weight:600;font-size:14px;transition:transform .25s}
.float-contact a.line{background:#06C755;color:#fff}
.float-contact a:hover{transform:scale(1.08)}
.float-contact svg{width:24px;height:24px;fill:currentColor}

/* INDEX DIRECTORY */
.region-block{margin-top:54px}
.region-title{font-family:var(--display);color:var(--white);font-size:26px;font-weight:500;display:flex;align-items:center;gap:18px;margin-bottom:22px}
.region-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
.region-title em{color:var(--gold);font-style:italic;font-size:15px;letter-spacing:.2em;margin-left:auto;font-weight:400}
.dir-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.dir-grid a{padding:14px 18px;border:1px solid var(--rule);background:rgba(255,255,255,.02);display:flex;justify-content:space-between;align-items:center;color:var(--ivory);font-size:14.5px;transition:all .25s}
.dir-grid a:hover{border-color:var(--gold);background:rgba(200,161,75,.06);transform:translateY(-2px)}
.dir-grid a span{color:var(--gold);font-family:var(--display);font-style:italic;letter-spacing:.06em;font-size:13px}
@media(max-width:1000px){.dir-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.dir-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.dir-grid{grid-template-columns:1fr}}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.tab{padding:10px 22px;border:1px solid var(--rule);color:var(--ivory);cursor:pointer;font-family:var(--display);letter-spacing:.06em;background:transparent;font-size:14px}
.tab.active{background:var(--gold);color:var(--black);border-color:var(--gold)}

/* ARTICLE */
.article-hero{padding:90px 28px 50px;max-width:1100px;margin:0 auto;text-align:center}
.article-hero h1{font-family:var(--display);font-size:clamp(36px,5vw,60px);color:var(--white);font-weight:500;line-height:1.1}
.article-hero h1 em{color:var(--gold);font-style:italic}
.article-hero p{color:var(--marble);max-width:720px;margin:18px auto 0}
.article-body{max-width:900px;margin:0 auto;padding:0 28px 80px}
.article-body h2{font-family:var(--display);color:var(--white);font-size:30px;font-weight:500;margin:48px 0 18px;letter-spacing:.01em}
.article-body h2 em{color:var(--gold);font-style:italic}
.article-body h3{font-family:var(--display);color:var(--gold-soft);font-size:22px;font-weight:500;margin:30px 0 12px}
.article-body p{color:var(--marble);margin-bottom:16px;font-size:16px}
.article-body ul{margin:10px 0 20px 22px;color:var(--marble)}
.article-body ul li{margin-bottom:8px}
.article-body a{color:var(--gold);border-bottom:1px solid rgba(200,161,75,.4)}
.article-body figure{margin:32px 0}
.article-body figure img{width:100%;display:block;border:1px solid var(--line)}
.article-body figcaption{font-family:var(--display);font-style:italic;color:var(--marble-gray);text-align:center;margin-top:10px;font-size:14px}
.callout{margin:28px 0;padding:24px 28px;border-left:3px solid var(--gold);background:linear-gradient(90deg,rgba(200,161,75,.10),transparent)}
.callout strong{color:var(--gold);font-family:var(--display)}

/* utilities */
.center{text-align:center}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:60px 0}

/* DIR-CARD (index directory) */
.dir-card{padding:14px 18px;border:1px solid var(--rule);background:rgba(255,255,255,.02);display:flex;justify-content:space-between;align-items:center;color:var(--ivory);font-size:14.5px;transition:all .25s;text-decoration:none;gap:12px}
.dir-card:hover{border-color:var(--gold);background:rgba(200,161,75,.06);transform:translateY(-2px)}
.dir-card .dir-thai{font-weight:500;flex:1}
.dir-card .dir-en{color:var(--gold);font-family:var(--display);font-style:italic;letter-spacing:.06em;font-size:12px;opacity:.8}
.dir-card .dir-arrow{color:var(--gold);font-size:18px;font-family:var(--display)}

/* FAQ ARTICLE PAGE */
.article{max-width:880px;margin:0 auto;padding:80px 28px 60px}
.article .eyebrow{display:block;color:var(--gold);font-family:var(--display);font-style:italic;letter-spacing:.3em;font-size:13px;text-transform:uppercase;margin-bottom:18px;text-align:center}
.article h1{font-family:var(--display);font-size:clamp(36px,5vw,56px);color:var(--white);font-weight:500;line-height:1.12;text-align:center;margin-bottom:22px}
.article h1 em{color:var(--gold);font-style:italic}
.article .lead{color:var(--marble);max-width:720px;margin:0 auto 50px;font-size:17px;line-height:1.75;text-align:center;font-family:var(--serif);font-style:italic}
.article h2{font-family:var(--display);color:var(--white);font-size:28px;font-weight:500;margin:54px 0 18px;letter-spacing:.005em;border-top:1px solid var(--rule);padding-top:32px}
.article h2:first-of-type{border-top:none;padding-top:0;margin-top:30px}
.article h2 em{color:var(--gold);font-style:italic}
.article p{color:var(--marble);margin-bottom:14px;font-size:16px;line-height:1.8}
.article p strong{color:var(--gold-soft)}
.article p em{color:var(--gold);font-style:italic}
.article ul,.article ol{margin:14px 0 22px 22px;color:var(--marble);line-height:1.8}
.article ul li,.article ol li{margin-bottom:10px}
.article a{color:var(--gold);border-bottom:1px solid rgba(200,161,75,.45);transition:color .2s}
.article a:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.article .num-list{counter-reset:item;list-style:none;margin-left:0;padding-left:0}
.article .num-list li{position:relative;padding-left:42px;counter-increment:item}
.article .num-list li::before{content:counter(item,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--gold);font-family:var(--display);font-style:italic;font-size:14px;letter-spacing:.1em}
.article .article-cta{margin-top:60px;padding:50px 32px;border:1px solid var(--rule);background:linear-gradient(135deg,rgba(200,161,75,.06),transparent);text-align:center}
.article .article-cta h2{border:none;padding:0;margin:0 0 14px}
.article .article-cta p{margin-bottom:24px}
.article .article-cta .row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

@media(max-width:600px){
  .article{padding:60px 20px 40px}
  .article h2{font-size:24px}
}

/* PARENT-LINK BLOCK (on amphoe pages) */
.parent-link{max-width:880px;margin:0 auto;text-align:center;padding:50px 28px;border:1px solid var(--rule);background:linear-gradient(135deg,rgba(200,161,75,.05),transparent)}
.parent-link .eyebrow{display:block;color:var(--gold);font-family:var(--display);font-style:italic;letter-spacing:.3em;font-size:12px;text-transform:uppercase;margin-bottom:12px}
.parent-link h3{font-family:var(--display);color:var(--white);font-size:24px;font-weight:500;margin-bottom:10px}
.parent-link h3 em{color:var(--gold);font-style:italic}
.parent-link p{color:var(--marble);margin-bottom:22px}

/* LINKED NEARBY-CARD (parent province → amphoe) */
.nearby-card.linked{display:flex;flex-direction:column;gap:6px;padding:18px 22px;border:1px solid var(--rule);background:rgba(255,255,255,.02);transition:all .25s;text-decoration:none;cursor:pointer}
.nearby-card.linked:hover{border-color:var(--gold);background:rgba(200,161,75,.08);transform:translateY(-2px)}
.nearby-card.linked .n{color:var(--ivory);font-weight:500;font-size:15px}
.nearby-card.linked .a{color:var(--gold);font-family:var(--display);font-style:italic;font-size:12px;letter-spacing:.08em}