/* UNFIRE By XuanBKK. Dark theme locked on purpose (black product, black brand).
   Shape rule: buttons 4px (Tesla-like), images and tiles 8px. No other radii.
   Language: every string is <span class="th"> + <span class="en">; html[data-lang] picks one. */
@font-face{font-family:"Plex Thai";src:url(/assets/fonts/IBMPlexSansThai-Regular.ttf) format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Thai";src:url(/assets/fonts/IBMPlexSansThai-Medium.ttf) format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:"Plex Thai";src:url(/assets/fonts/IBMPlexSansThai-SemiBold.ttf) format("truetype");font-weight:600;font-display:swap}

:root{--bg:#0b0b0d;--bg2:#141519;--line:rgba(255,255,255,.10);--text:#f2f3f5;--muted:#9ca1aa;--silver:#c9ced6;--rb:4px;--ri:8px;--wrap:1240px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
html[data-lang="th"] .en,html[data-lang="en"] .th{display:none!important}
body{background:var(--bg);color:var(--text);font-family:"Plex Thai",system-ui,sans-serif;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
h1,h2,h3,h4{font-weight:600;line-height:1.28;letter-spacing:-.01em}
h2{font-size:clamp(28px,3.2vw,42px)}
h3{font-size:19px}
.lead{color:var(--muted);max-width:62ch;margin-top:12px}
.small{color:var(--muted);font-size:14px;margin-top:10px;max-width:70ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:180px;height:42px;padding:0 22px;border-radius:var(--rb);font-weight:500;font-size:14.5px;text-decoration:none;white-space:nowrap;transition:background-color .2s,border-color .2s,transform .2s cubic-bezier(.16,1,.3,1)}
.btn:active{transform:scale(.98)}
.btn--light{background:rgba(242,243,245,.93);color:#0b0b0d}
.btn--light:hover{background:#fff}
.btn--ghost{background:rgba(22,23,27,.62);color:var(--text);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.btn--ghost:hover{border-color:rgba(255,255,255,.7)}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:20;height:64px;display:flex;align-items:center;gap:28px;padding:0 28px;background:rgba(11,11,13,.6);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav__brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav__brand img{height:20px;width:auto}
.nav__by{font-size:12px;color:var(--muted);letter-spacing:.04em;padding-top:3px}
.nav__links{display:flex;gap:26px;margin:0 auto}
.nav__links a{text-decoration:none;color:var(--silver);font-size:14.5px}
.nav__links a:hover{color:#fff}
.lang{background:none;border:1px solid var(--line);color:var(--silver);border-radius:var(--rb);height:34px;padding:0 10px;font:inherit;font-size:13px;cursor:pointer;display:flex;gap:4px;align-items:center}
.lang b{color:#fff;font-weight:600}.lang i{font-style:normal;opacity:.4}.lang em{font-style:normal}
.lang:hover{border-color:rgba(255,255,255,.4)}
.nav__cta{min-width:0;height:34px;padding:0 16px;font-size:13.5px}

/* home carousel: full-bleed slides, title top, buttons bottom (Tesla pattern) */
.carousel{position:relative;height:100dvh;min-height:580px;overflow:hidden;background:#000}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;pointer-events:none}
.slide.is-on{opacity:1;pointer-events:auto}
.slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.68) 0%,rgba(0,0,0,.18) 30%,rgba(0,0,0,0) 45%,rgba(0,0,0,0) 62%,rgba(0,0,0,.6) 100%)}
.slide__txt{position:absolute;left:0;right:0;top:14vh;text-align:center;z-index:2;padding:0 20px}
.slide__txt h1{font-size:clamp(34px,4.4vw,58px)}
.slide__txt p{color:#e8eaee;margin-top:4px}
.slide__txt h1,.slide__txt p,.phero__body h1,.phero__body p{text-shadow:0 2px 18px rgba(0,0,0,.45)}
.slide__cta{position:absolute;left:0;right:0;bottom:11vh;z-index:2;display:flex;gap:14px;justify-content:center;flex-wrap:wrap;padding:0 20px}
.carousel__arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border-radius:var(--rb);border:0;background:rgba(22,23,27,.5);color:#fff;font-size:26px;line-height:1;cursor:pointer}
.carousel__arrow--prev{left:22px}.carousel__arrow--next{right:22px}
.carousel__arrow:hover{background:rgba(22,23,27,.8)}
.carousel__dots{position:absolute;left:0;right:0;bottom:4.5vh;display:flex;gap:10px;justify-content:center;z-index:3}
.carousel__dots button{width:8px;height:8px;border-radius:50%;border:0;background:rgba(255,255,255,.4);cursor:pointer;padding:0}
.carousel__dots button.is-on{background:#fff}

/* inner page hero */
.phero{position:relative;height:90dvh;min-height:540px;overflow:hidden;background:#000}
.phero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.phero__shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,0) 36%,rgba(0,0,0,0) 60%,rgba(0,0,0,.6) 100%)}
.phero__body{position:absolute;left:0;right:0;top:14vh;bottom:9vh;display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 20px}
.phero__body h1{font-size:clamp(34px,4.4vw,58px)}
.phero__body p{color:#e8eaee}
.phero__body .cta{justify-content:center;margin-top:auto}

/* home ranges */
.range{padding:110px 0 30px}
.range--b2c{padding-top:80px}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:40px}
.tile{position:relative;display:block;border-radius:var(--ri);overflow:hidden;text-decoration:none;background:#e9eaec;aspect-ratio:1/1}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.16,1,.3,1)}
.tile:hover img{transform:scale(1.03)}
.tile__txt{position:absolute;left:0;right:0;bottom:0;padding:70px 28px 28px;background:linear-gradient(0deg,rgba(0,0,0,.82) 0%,rgba(0,0,0,.5) 55%,rgba(0,0,0,0) 100%)}
.tile__txt h3{font-size:clamp(20px,2vw,26px)}
.tile__txt p{color:var(--silver);font-size:15px;margin:4px 0 16px}
.tile__txt .btn{min-width:150px;height:38px}

/* split image + text */
.split{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;margin:110px 0;background:var(--bg2);border-block:1px solid var(--line)}
.split img{width:100%;height:100%;min-height:420px;object-fit:cover}
.split__txt{padding:56px}
.split__txt .btn{margin-top:26px}
.split--rev{grid-template-columns:1fr 1.25fr}
.split--rev img{order:2}

/* studio (product + 3 numbers) */
.studio{padding:110px 0 60px}
.studio__grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.studio__grid>img{border-radius:var(--ri);background:#e9eaec}
.studio__kicker{color:var(--muted);font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px;border-top:1px solid var(--line);padding-top:22px}
.stats b{display:block;font-size:clamp(28px,3vw,40px);font-weight:500;line-height:1.1}
.stats span{color:var(--muted);font-size:14px}

/* sizes */
.sizesec{padding:60px 0}
.sizes{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);margin-top:28px;border-top:1px solid var(--line)}
.sizes li{padding-top:24px;display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:baseline}
.sizes b{font-size:clamp(40px,5vw,64px);font-weight:500;line-height:1}
.sizes span{color:var(--silver)}
.sizes em{grid-column:1/-1;font-style:normal;color:var(--muted);font-size:14px;margin-top:6px}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chips li{border:1px solid var(--line);border-radius:var(--rb);padding:10px 18px;font-weight:500}

/* facts bento: 4 items, 4 cells */
.facts{padding:40px 0 60px}
.facts__grid{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;grid-template-areas:"wide a" "wide b" "place place"}
.fact{background:var(--bg2);border:1px solid var(--line);border-radius:var(--ri);padding:30px}
.fact p{color:var(--muted);margin-top:8px}
.fact--wide{grid-area:wide;background:linear-gradient(160deg,#1d1f25 0%,#0f1013 75%);display:flex;flex-direction:column;justify-content:flex-end;min-height:340px}
.fact--wide h3{font-size:clamp(22px,2.4vw,30px);max-width:18ch}
.facts__grid .fact:nth-child(2){grid-area:a}.facts__grid .fact:nth-child(3){grid-area:b}
.fact--place{grid-area:place;display:flex;gap:28px;align-items:baseline}
.fact--place p{margin-top:0}
.classes{display:flex;gap:10px;margin-top:14px!important}
.classes span{width:44px;height:44px;border:1.5px solid var(--silver);border-radius:var(--rb);display:grid;place-items:center;color:var(--text);font-weight:600}
.note{font-size:13px}

/* specs */
.specsec{padding:90px 0}
.specsec__grid{display:grid;grid-template-columns:1fr 1.6fr;gap:64px}
.spec{display:grid;margin-top:22px}
.spec div{display:grid;grid-template-columns:200px 1fr;gap:18px;padding:13px 0}
.spec div+div{border-top:1px solid var(--line)}
.spec dt{color:var(--muted)}
.specsec__sub{margin-top:40px}

/* ordering */
.order{padding:90px 0;background:var(--bg2);border-block:1px solid var(--line)}
.order__grid{display:grid;grid-template-columns:1.3fr 1fr;gap:64px}
.order__oem .btn{margin-top:26px}

/* steps */
.steps{padding:90px 0}
.steps ol{list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:34px}
.steps li{counter-increment:s;border-top:1px solid var(--line);padding-top:20px}
.steps li::before{content:counter(s);display:block;font-size:40px;font-weight:500;line-height:1;margin-bottom:14px;color:var(--silver)}
.steps p{color:var(--muted);font-size:15px;margin-top:6px}

/* closing band */
.band{padding:120px 0;text-align:center}
.band .lead{margin-left:auto;margin-right:auto}
.band .cta{justify-content:center}

/* contact page */
.contactpg{padding:140px 0 110px}
.contactpg h1{font-size:clamp(34px,4.4vw,56px)}
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:44px}
.ccard{background:var(--bg2);border:1px solid var(--line);border-radius:var(--ri);padding:32px}
.ccard p{color:var(--muted);margin-top:8px}
.ccard img{width:180px;margin-top:18px;border-radius:var(--ri);background:#fff;padding:10px}
.ccard .btn{margin-top:20px}
.ccard a{text-underline-offset:4px}

/* footer */
.foot{border-top:1px solid var(--line);padding:64px 0 30px;color:var(--muted);font-size:14px}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.foot__brand img{height:22px;width:auto}
.foot__name{color:var(--text);font-weight:600;margin-top:14px}
.foot h4{color:var(--text);font-size:14px;margin-bottom:10px}
.foot__grid>div>a{display:block;text-decoration:none;padding:3px 0}
.foot__grid>div>a:hover{color:#fff}
.foot__qrs{display:flex;gap:18px}
.foot__qr{text-decoration:none;display:grid;gap:8px;font-size:12px;line-height:1.4}
.foot__qr img{width:96px;border-radius:6px;background:#fff;padding:6px}
.foot__parent{margin-top:44px;padding-top:22px;border-top:1px solid var(--line)}
.foot__parent p+p{margin-top:4px}
.foot__parent a{color:var(--silver)}
.foot__copy{font-size:13px;margin-top:14px!important}

/* motion: hero text entry only (reading order) */
@media (prefers-reduced-motion:no-preference){
  .phero__body>*,.slide.is-on .slide__txt>*{animation:rise .8s cubic-bezier(.16,1,.3,1) both}
  .phero__body>*:nth-child(2),.slide.is-on .slide__txt>*:nth-child(2){animation-delay:.08s}
  @keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){.slide{transition:none}.tile img{transition:none}}

/* tablet / mobile */
@media (max-width:900px){
  .nav__links{display:none}
  .nav{gap:12px;padding:0 16px}
  .lang{margin-left:auto}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .nav__by,.nav__cta,.carousel__arrow{display:none}
  .btn{min-width:150px}
  .tiles,.studio__grid,.specsec__grid,.order__grid,.cgrid,.split,.split--rev{grid-template-columns:1fr}
  .split--rev img{order:0}
  .split img{min-height:260px}
  .split__txt{padding:34px 20px}
  .range{padding:80px 0 20px}
  .studio{padding:70px 0 30px}
  .studio__grid{gap:30px}
  .sizes{grid-template-columns:1fr 1fr;row-gap:26px}
  .facts__grid{grid-template-columns:1fr;grid-template-areas:"wide" "a" "b" "place"}
  .fact--place{flex-direction:column;gap:6px}
  .spec div{grid-template-columns:1fr;gap:2px}
  .steps ol{grid-template-columns:1fr 1fr}
  .foot__grid{grid-template-columns:1fr 1fr}
  .foot__brand,.foot__qrs{grid-column:1/-1}
  .phero{height:80dvh}
}

/* cases: video + asymmetric gallery (6 items = 6 cells) */
.cases{padding:110px 0 30px}
.video{margin-top:40px;border-radius:var(--ri);overflow:hidden;background:#000;aspect-ratio:16/9}
.video video{width:100%;height:100%;display:block;object-fit:cover}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.gallery figure{position:relative;border-radius:var(--ri);overflow:hidden;aspect-ratio:4/3}
.gallery .g-wide{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}
.gallery img{width:100%;height:100%;object-fit:cover}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;font-size:13.5px;color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.7),rgba(0,0,0,0))}
@media (max-width:767px){.gallery{grid-template-columns:1fr 1fr}.gallery .g-wide{grid-column:span 2;grid-row:auto;aspect-ratio:4/3}.cases{padding:80px 0 20px}}

/* standards & testing: 4 items, first one wide */
.certs{padding:90px 0 40px}
.certgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px}
.cert{background:var(--bg2);border:1px solid var(--line);border-radius:var(--ri);padding:28px;display:flex;flex-direction:column}
.cert--ce,.cert--gov{background:linear-gradient(160deg,#1d1f25 0%,#0f1013 80%)}
.cert img{width:72px;height:72px;margin-bottom:22px}
.cert__big{font-size:30px;font-weight:500;line-height:1.1;margin-bottom:22px;min-height:72px;display:flex;align-items:flex-end}
.cert h3{font-size:17px}
.cert p{color:var(--muted);font-size:14.5px;margin-top:8px}
.cert .certno{margin-top:auto;padding-top:14px;color:var(--silver);font-size:13px;letter-spacing:.02em}
@media (max-width:1000px){.certgrid{grid-template-columns:1fr 1fr}}
@media (max-width:767px){.certgrid{grid-template-columns:1fr}.certs{padding:70px 0 20px}}
.cert{position:relative}
.cert img.cert__thumb{width:100%;height:170px;object-fit:cover;object-position:top;border-radius:6px;margin-bottom:20px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.cert img.cert__thumb--photo{object-position:center}
.cert--ce .cert__thumb+img{position:absolute;top:44px;right:44px;width:54px;height:54px;margin:0;filter:drop-shadow(0 2px 6px rgba(0,0,0,.6))}
.cert__big{min-height:0;margin-bottom:10px}