/* O.E.M. Centre — site layout on top of the Modernist design system (ds.css) */
:root{ --maxw:1200px; }
html,body{margin:0}
body{-webkit-font-smoothing:antialiased}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grayscale{filter:grayscale(1) contrast(1.05)}
.muted{color:color-mix(in srgb,var(--color-text) 55%,transparent)}
.skip{position:absolute;left:-9999px;top:auto}
.skip:focus{left:8px;top:8px;background:var(--color-accent);color:#fff;padding:8px 12px;z-index:200}

/* bilingual visibility (default: Thai) */
[data-l="en"]{display:none}
.lang-en [data-l="en"]{display:revert}
.lang-en [data-l="th"]{display:none}

/* ── header ── */
.site-header{position:sticky;top:0;z-index:50;background:var(--color-bg);border-bottom:2px solid var(--color-divider)}
.hdr{display:flex;align-items:center;gap:22px;padding:10px 0}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:inherit;margin-right:auto}
.brand img{height:40px;width:auto;display:block}
.brand .bt{font-family:var(--font-heading);font-weight:800;font-size:18px;line-height:1.05;letter-spacing:-.01em}
.brand .bs{display:block;font-size:9.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--color-accent);margin-top:3px}
.site-nav{display:flex;align-items:center;gap:22px}
.site-nav a{color:inherit;text-decoration:none;font-family:var(--font-heading);font-weight:600;font-size:14px;white-space:nowrap}
.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--color-accent)}
.has-sub{position:relative}
.has-sub>a{display:inline-flex;align-items:center}
.has-sub>a::after{content:"";margin-left:6px;border:4px solid transparent;border-top-color:currentColor;transform:translateY(2px)}
.submenu{position:absolute;top:100%;left:0;min-width:270px;background:var(--color-bg);border:2px solid var(--color-divider);display:none;flex-direction:column;padding:6px 0}
.submenu a{padding:10px 18px;font-weight:600;font-size:13px}
.submenu a:hover{background:color-mix(in srgb,var(--color-text) 6%,transparent);color:var(--color-accent)}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{display:flex}
.hdr-actions{display:flex;align-items:center;gap:14px}
.lang{display:inline-flex;border:1px solid var(--color-divider)}
.lang button{background:transparent;border:0;cursor:pointer;font-family:var(--font-heading);font-weight:600;font-size:12px;padding:6px 11px;color:inherit}
.lang button[aria-pressed=true]{background:var(--color-accent);color:var(--color-bg)}
.nav-toggle{display:none;background:transparent;border:1px solid var(--color-divider);cursor:pointer;width:42px;height:40px;align-items:center;justify-content:center;color:inherit}

/* ── hero ── */
.hero{display:grid;grid-template-columns:1.12fr 1fr;border-bottom:2px solid var(--color-divider)}
.hero-text{padding:72px 56px 72px 0}
.kicker{font-family:var(--font-heading);font-weight:600;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent);margin:0 0 20px}
.hero h1{font-size:clamp(38px,4.8vw,62px);line-height:1.04;margin:0 0 22px}
.hero-tag{font-size:18px;line-height:1.55;max-width:48ch;margin:0 0 30px}
.hero-img{position:relative;overflow:hidden;background:var(--color-surface);min-height:440px;border-left:2px solid var(--color-divider)}
.hero-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.btnrow{display:flex;flex-wrap:wrap;gap:12px}
.btn-lg{font-size:15px;padding:13px 24px}

/* ── generic section ── */
.section{padding:68px 0;border-bottom:2px solid var(--color-divider)}
.section:last-of-type{border-bottom:0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(28px,3.4vw,42px);margin:0;max-width:20ch}
.eyebrow{font-family:var(--font-heading);font-weight:600;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent);margin:0 0 14px}
.lead{font-size:18px;line-height:1.6;max-width:60ch}

/* interior page hero */
.page-hero{border-bottom:2px solid var(--color-divider);padding:60px 0 54px}
.breadcrumb{font-size:12px;margin-bottom:16px;color:color-mix(in srgb,var(--color-text) 55%,transparent)}
.breadcrumb a{color:inherit;text-decoration:none}
.breadcrumb a:hover{color:var(--color-accent)}
.page-hero h1{font-size:clamp(34px,4.4vw,54px);margin:0 0 16px}
.page-hero p{font-size:17px;max-width:64ch;margin:0}

/* grid lines: 2px gap over divider bg draws the rules between cells */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--color-divider);border:2px solid var(--color-divider)}
.tiles-3{grid-template-columns:repeat(3,1fr)}
.tile{background:var(--color-bg);display:flex;flex-direction:column}
.tile .ph{background:#fff;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:20px}
.tile .ph img{max-height:100%;max-width:100%;object-fit:contain}
.tile .tx{padding:16px 18px 22px;display:flex;flex-direction:column;gap:5px;flex:1}
.tile h4{font-size:15px;margin:0;line-height:1.2}
.tile p{font-size:12px;margin:0;color:color-mix(in srgb,var(--color-text) 55%,transparent);line-height:1.45}

/* stat row */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:var(--color-divider);border:2px solid var(--color-divider)}
.stat{background:var(--color-bg);padding:30px 26px}
.stat b{display:block;font-family:var(--font-heading);font-weight:800;font-size:clamp(34px,4vw,46px);line-height:1;letter-spacing:-.02em}
.stat span{display:block;margin-top:10px;font-size:13px;color:color-mix(in srgb,var(--color-text) 60%,transparent)}

/* generic cells grid */
.cols{display:grid;gap:2px;background:var(--color-divider);border:2px solid var(--color-divider)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cell{background:var(--color-bg);padding:34px}
.cell .num{font-family:var(--font-heading);font-weight:800;font-size:13px;color:var(--color-accent);letter-spacing:.05em}
.cell h3{font-size:20px;margin:14px 0 10px}
.cell h4{font-size:17px;margin:12px 0 8px}
.cell p{margin:0;font-size:14px;line-height:1.6}

/* two-col feature row (image + text) */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:0;border:2px solid var(--color-divider);margin-bottom:2px}
.feature .fimg{background:var(--color-surface);min-height:340px;overflow:hidden}
.feature .fimg img{width:100%;height:100%;object-fit:cover}
.feature .ftx{padding:44px;border-left:2px solid var(--color-divider)}
.feature.flip .fimg{order:2;border-left:2px solid var(--color-divider)}
.feature.flip .ftx{border-left:0}

/* brand chips */
.brands{display:flex;flex-wrap:wrap;gap:9px}
.brands .tag{font-size:13px;padding:6px 14px}

/* portfolio */
.folio{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;background:var(--color-divider);border:2px solid var(--color-divider)}
.folio figure{margin:0;background:var(--color-bg);display:flex;flex-direction:column}
.folio .img{aspect-ratio:4/3;overflow:hidden;background:var(--color-surface)}
.folio .img img{width:100%;height:100%;object-fit:cover}
.folio figcaption{padding:16px 18px}
.folio .fc-k{font-family:var(--font-heading);font-weight:600;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--color-accent);display:block;margin-bottom:5px}
.folio .fc-t{font-family:var(--font-heading);font-weight:800;font-size:15px;line-height:1.25}

/* poster (red field) */
.poster{background:var(--color-accent);color:var(--color-bg)}
.poster .container{padding-top:76px;padding-bottom:76px}
.poster h2{font-size:clamp(30px,4.4vw,54px);line-height:1.05;max-width:22ch;margin:0 0 26px;color:var(--color-bg)}
.poster p{font-size:18px;max-width:52ch;margin:0 0 30px;opacity:.92}
.poster .btn-white{background:var(--color-bg);color:var(--color-accent)}
.poster .btn-white:hover{background:#fff}
.poster .btn-outline{border:1px solid rgba(255,255,255,.55);color:#fff}
.poster .btn-outline:hover{background:rgba(255,255,255,.14)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--color-divider);border:2px solid var(--color-divider)}
.contact-grid .cell{padding:38px}
.info-list{list-style:none;margin:0;padding:0}
.info-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--color-divider);font-size:15px}
.info-list li:last-child{border-bottom:0}
.info-list .k{font-family:var(--font-heading);font-weight:600;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:color-mix(in srgb,var(--color-text) 55%,transparent);min-width:78px;padding-top:2px}
.info-list a{text-decoration:none}
.map{border:2px solid var(--color-divider)}
.map iframe{width:100%;height:100%;min-height:380px;border:0;display:block;filter:grayscale(1) contrast(1.05)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}

/* faq */
.faq details{border-top:2px solid var(--color-divider);padding:20px 0}
.faq details:last-child{border-bottom:2px solid var(--color-divider)}
.faq summary{font-family:var(--font-heading);font-weight:800;font-size:18px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:baseline}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--color-accent);font-size:26px;line-height:1;font-weight:800}
.faq details[open] summary::after{content:"\2013"}
.faq .fa{margin-top:16px;font-size:15px;line-height:1.65;max-width:74ch}

/* footer */
.site-footer{background:var(--color-neutral-900);color:var(--color-bg)}
.site-footer .container{padding-top:60px;padding-bottom:30px}
.site-footer a{color:var(--color-bg);text-decoration:none}
.site-footer a:hover{color:var(--color-accent-300)}
.foot{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}
.foot h5{font-family:var(--font-heading);font-weight:800;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin:0 0 16px}
.foot p{font-size:14px;line-height:1.7;color:color-mix(in srgb,#fff 72%,transparent);margin:0 0 12px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:9px;font-size:14px}
.foot .fbrand{font-family:var(--font-heading);font-weight:800;font-size:20px;margin-bottom:6px}
.foot .ftag{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--color-accent-400)}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.18);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:color-mix(in srgb,#fff 55%,transparent)}

/* LINE floating button */
.line-fab{position:fixed;right:20px;bottom:20px;z-index:60;background:#06C755;color:#fff;font-family:var(--font-heading);font-weight:800;font-size:14px;padding:13px 18px;text-decoration:none;box-shadow:var(--shadow-md);display:inline-flex;gap:9px;align-items:center}
.line-fab:hover{background:#05b34c}

/* responsive */
@media(max-width:960px){
  .hero{grid-template-columns:1fr}
  .hero-img{order:-1;min-height:280px;border-left:0;border-bottom:2px solid var(--color-divider)}
  .hero-text{padding:44px 0}
  .tiles,.stats{grid-template-columns:repeat(2,1fr)}
  .feature,.feature.flip{grid-template-columns:1fr}
  .feature .ftx,.feature.flip .fimg{border-left:0}
  .feature .fimg{border-bottom:2px solid var(--color-divider)}
  .folio,.cols-3,.tiles-3{grid-template-columns:repeat(2,1fr)}
  .cols-2,.contact-grid,.form-grid,.foot{grid-template-columns:1fr}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--color-bg);border-bottom:2px solid var(--color-divider);padding:6px 0;max-height:80vh;overflow:auto}
  .nav-open .site-nav{display:flex}
  .site-nav>a,.has-sub>a{padding:13px 24px}
  .submenu{position:static;display:flex;border:0;padding:0 0 8px 36px;min-width:0}
  .submenu a{padding:9px 0}
  .has-sub>a::after{display:none}
  .hdr-actions .quote-btn{display:none}
}
@media(max-width:600px){
  .tiles,.stats,.folio,.cols-3,.tiles-3{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cell,.contact-grid .cell{padding:26px}
  .feature .ftx{padding:28px}
}