/* SiamLight website v3 — Night Editorial. Tokens from scripts/catalog_night/build_catalog.py;
   --mute is lightened from #7B8598 to #9AA3B5 for 4.5:1 body contrast on navy. */
@font-face{font-family:"Anuphan";src:url("../fonts/anuphan-thai-400-normal.woff2") format("woff2");font-weight:400;font-display:swap;unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"Anuphan";src:url("../fonts/anuphan-thai-600-normal.woff2") format("woff2");font-weight:600;font-display:swap;unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"Anuphan";src:url("../fonts/anuphan-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F,U+2212}
@font-face{font-family:"Anuphan";src:url("../fonts/anuphan-latin-600-normal.woff2") format("woff2");font-weight:600;font-display:swap;unicode-range:U+0000-00FF,U+2000-206F,U+2212}
@font-face{font-family:"Playfair Display";src:url("../fonts/playfair-display-latin-400-normal.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url("../fonts/barlow-condensed-latin-500-normal.woff2") format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Barlow Condensed";src:url("../fonts/barlow-condensed-latin-600-normal.woff2") format("woff2");font-weight:600;font-display:swap}

:root{--ink:#070B14;--navy:#0D1B33;--navy2:#12233F;--paper:#F3EFE6;--amber:#E9A23B;--amber2:#FFD27A;--mute:#9AA3B5;
  --line:rgba(243,239,230,.16);--glow:233,162,59;
  --th:"Sukhumvit Set","Anuphan",system-ui,sans-serif;--disp:"Didot","Playfair Display",Georgia,serif;
  --cond:"Avenir Next Condensed","Barlow Condensed","Sukhumvit Set","Anuphan",sans-serif;
  --gut:16px;--max:1200px;--head:64px}
@media (min-width:900px){:root{--gut:32px}}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--head) + 64px)}
body{margin:0;background:var(--ink);color:var(--paper);font:400 17px/1.75 var(--th);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-color:rgba(233,162,59,.5);text-underline-offset:3px}
a:hover{color:var(--amber2)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
h1,h2,h3,h4{font-weight:600;line-height:1.35;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5.6vw,4.4rem);line-height:1.25}
h2{font-size:clamp(1.7rem,3.6vw,2.8rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
em{font-style:normal;color:var(--amber2)}
ul,ol{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--ink);padding:8px 14px;z-index:100}
.skip:focus{left:8px}
.mute{color:var(--mute)}
.kicker{font:600 .8rem/1.4 var(--cond);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin:0 0 .9em}
.kicker.amber{color:var(--amber)}
.lede{font-size:1.12rem;color:rgba(243,239,230,.88);max-width:44em}
.note{color:var(--mute);font-size:.9rem}
.mt{margin-top:40px}
.sec{padding:clamp(64px,9vw,120px) 0}
.sec-navy{background:var(--navy)}
.sec-head{max-width:760px;margin-bottom:clamp(32px,5vw,56px)}
.page-head{padding:clamp(72px,10vw,130px) 0 clamp(40px,6vw,64px);background:radial-gradient(80% 120% at 85% 0%,rgba(var(--glow),.12),transparent 60%)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;padding:.8em 1.4em;border-radius:999px;font:600 1rem/1.2 var(--th);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--amber);color:var(--ink)}
.btn-primary:hover{background:var(--amber2);color:var(--ink)}
.btn-ghost{border-color:rgba(243,239,230,.45);color:var(--paper);background:transparent}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber2)}
.btn-sm{padding:.5em 1.1em;font-size:.95rem}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(7,11,20,.84);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;justify-content:space-between;min-height:var(--head);gap:16px;position:relative}
.brand-logo{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:28px}
.nav ul{display:flex;gap:22px;list-style:none;padding:0}
.nav a:not(.btn){text-decoration:none;font-size:.95rem;color:rgba(243,239,230,.8);padding:6px 0;border-bottom:2px solid transparent}
.nav a[aria-current="page"]{color:var(--paper);border-bottom-color:var(--amber)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--paper);border-radius:999px;padding:.4em 1.1em;font:inherit;cursor:pointer}
@media (max-width:899px){
  .head-row{flex-wrap:wrap}
  .nav{flex-wrap:wrap;gap:12px;padding-bottom:12px}
  .nav ul{flex-wrap:wrap;gap:4px 16px}
  html:not(.js) .site-head{position:static}
  html:not(.js) .subnav{top:0}
  .js .menu-btn{display:inline-block}
  .js .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--ink);border-bottom:1px solid var(--line);padding:12px var(--gut) 20px;flex-direction:column;align-items:flex-start}
  .js .nav.open{display:flex}
  .js .nav ul{flex-direction:column}
}

/* photos: every AI illustration carries the ภาพประกอบ label */
.photo{position:relative;margin:0;overflow:hidden;background:var(--navy)}
.photo img{width:100%;height:100%;object-fit:cover}
.illus{position:absolute;right:10px;bottom:10px;z-index:2;font:500 .72rem/1 var(--th);padding:5px 9px;border-radius:3px;background:rgba(7,11,20,.62);color:rgba(243,239,230,.88)}

/* home */
.hero{position:relative;min-height:min(92vh,860px);display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero>.photo{position:absolute;inset:0;z-index:-2}
.hero>.photo .illus{top:14px;bottom:auto}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(7,11,20,.2) 0%,rgba(7,11,20,.35) 45%,var(--ink) 100%),linear-gradient(90deg,rgba(7,11,20,.75),transparent 70%)}
.hero-body{padding-top:140px;padding-bottom:clamp(56px,9vw,110px)}
.hero h1 em{display:block}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:28px 20px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{display:block;font:400 clamp(1.9rem,3.6vw,2.8rem)/1.15 var(--disp);color:var(--amber2)}
.stat span{color:var(--mute);font-size:.95rem}
@media (max-width:760px){.stats{grid-template-columns:1fr 1fr}.stat:nth-child(3){border-left:0}.stat:nth-child(n+3){border-top:1px solid var(--line)}}
.cards{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{position:relative;background:linear-gradient(180deg,var(--navy2),var(--navy));border:1px solid var(--line);border-radius:14px;padding:26px;display:flex;flex-direction:column;gap:6px;text-decoration:none;color:inherit;transition:border-color .25s,transform .25s}
.sec-navy .card{background:linear-gradient(180deg,#152a4b,var(--navy2))}
a.card:hover{border-color:rgba(233,162,59,.6);transform:translateY(-3px);color:inherit}
.card h3{margin:0}
.card .cut{height:180px;display:grid;place-items:center;margin-bottom:10px;position:relative}
.card .cut img{max-height:100%;width:auto;object-fit:contain;position:relative}
.card .no{font:400 1.1rem var(--disp);color:var(--amber)}
.card .range{font:600 .92rem var(--cond);letter-spacing:.08em;color:var(--amber2)}
.glow{position:relative}
.glow::before{content:"";position:absolute;inset:8% 14%;background:radial-gradient(closest-side,rgba(var(--glow),.35),transparent);filter:blur(10px);animation:pulse 5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.65}50%{opacity:1}}
.split{display:grid;gap:clamp(28px,5vw,64px);grid-template-columns:1fr 1fr;align-items:center}
.split.wide-left{grid-template-columns:1.2fr 1fr}
@media (max-width:899px){.split,.split.wide-left{grid-template-columns:1fr}}
.shot{border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.ticks{list-style:none;padding:0;margin:0 0 1.4em}
.ticks li{padding-left:1.6em;position:relative;margin-bottom:.5em}
.ticks li::before{content:"";position:absolute;left:0;top:.8em;width:.75em;height:2px;background:var(--amber)}
.trio{display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}
@media (max-width:899px){.trio{grid-template-columns:1fr}}
.apps-grid{display:grid;gap:16px;grid-template-columns:repeat(4,1fr)}
@media (max-width:899px){.apps-grid{grid-template-columns:1fr 1fr}}
.app-fig{aspect-ratio:3/4;border-radius:12px}
.app-fig .illus{top:10px;bottom:auto}
.app-cap{position:absolute;left:0;right:0;bottom:0;padding:56px 18px 18px;background:linear-gradient(transparent,rgba(7,11,20,.92))}
.app-cap b{display:block;font-size:1.1rem}
.app-cap span{font:600 .82rem var(--cond);letter-spacing:.1em;color:var(--amber2)}
.cta{position:relative;text-align:center;overflow:hidden}
.cta::before{content:"";position:absolute;left:50%;top:0;width:900px;height:900px;transform:translate(-50%,-55%);background:radial-gradient(closest-side,rgba(var(--glow),.22),transparent);pointer-events:none}
.cta .lede{margin-left:auto;margin-right:auto}
.cta .actions{justify-content:center}

/* products */
.subnav{position:sticky;top:var(--head);z-index:40;background:rgba(7,11,20,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.subnav ul{display:flex;gap:8px;list-style:none;margin:0 auto;padding:10px var(--gut);max-width:var(--max);overflow-x:auto;scrollbar-width:none}
.subnav a{display:block;white-space:nowrap;padding:.35em .95em;border:1px solid var(--line);border-radius:999px;text-decoration:none;font:600 .88rem var(--cond);letter-spacing:.06em}
.subnav a:hover{border-color:var(--amber)}
.series{border-top:1px solid var(--line)}
.series-top{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,72px);align-items:center}
@media (max-width:899px){.series-top{grid-template-columns:1fr}}
.series-no{font:400 clamp(4rem,10vw,8rem)/.8 var(--disp);color:transparent;-webkit-text-stroke:1px rgba(243,239,230,.45);margin-bottom:.15em}
.series h2 small{display:block;font-size:.5em;color:var(--mute);font-weight:400;margin-top:.3em}
.hero-cut{min-height:260px;display:grid;place-items:center}
.hero-cut img{position:relative;max-height:380px;width:auto}
.use{color:var(--mute);font-size:.95rem}
.use b{color:var(--paper);font-weight:600;margin-right:.6em}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin:40px 0}
.spec{padding:20px 16px 20px 0;border-bottom:1px solid var(--line)}
.spec .v{font:400 clamp(1.6rem,3vw,2.3rem)/1.15 var(--disp);color:var(--amber2)}
.spec .v i{font:600 .82rem var(--cond);font-style:normal;color:var(--mute);margin-left:.35em;letter-spacing:.06em}
.spec .k{color:var(--mute);font-size:.9rem;margin-top:4px}
@media (max-width:600px){.spec-grid{grid-template-columns:1fr 1fr}}
.series-body{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,4vw,48px);align-items:start}
@media (max-width:899px){.series-body{grid-template-columns:1fr}}
.series-body>*,.split>*{min-width:0}   /* let wide tables scroll inside .table-wrap */
.series-photo{aspect-ratio:3/4;border-radius:14px}
@media (max-width:899px){.series-photo{aspect-ratio:4/3}}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin:0 0 12px;max-width:100%}
table.models{width:100%;border-collapse:collapse;min-width:520px;font-size:.95rem}
.models th,.models td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.models th{font:600 .8rem var(--cond);letter-spacing:.12em;text-transform:uppercase;color:var(--mute);background:rgba(243,239,230,.03)}
.models tr:last-child td{border-bottom:0}
.models td:first-child{font-weight:600;color:var(--amber2)}
.models .r{text-align:right;font-variant-numeric:tabular-nums}
.kv{margin:0}
.kv div{display:grid;grid-template-columns:minmax(110px,40%) 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--line)}
.kv dt{color:var(--mute);font-size:.92rem}
.kv dd{margin:0}
.subs{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-top:40px}
.sub .cut{height:200px}
.cut.pair{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:end}
.cut.pair figure{margin:0;position:relative;text-align:center}
.cut.pair img{max-height:160px;width:auto;margin:0 auto}
.cut.pair figcaption{font-size:.8rem;color:var(--mute);margin-top:6px}

/* SiamLight AI */
.chain{margin:48px 0 16px}
.chain-svg{width:100%;height:auto;display:block;margin-bottom:12px}
.chain .ico{fill:none;stroke:var(--paper);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.chain .ico .ph{fill:var(--navy)}
.chain .rail{stroke:rgba(243,239,230,.22);stroke-width:2}
.chain .d-up{fill:var(--amber);animation:flowR 2.6s linear infinite}
.chain .d-down{fill:var(--paper);animation:flowL 2.6s linear infinite}
@keyframes flowR{0%{transform:translateX(0);opacity:0}15%,85%{opacity:1}100%{transform:translateX(100px);opacity:0}}
@keyframes flowL{0%{transform:translateX(0);opacity:0}15%,85%{opacity:1}100%{transform:translateX(-100px);opacity:0}}
.chain-labels{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;list-style:none;padding:0;text-align:center}
.chain-labels b{display:block}
.chain-labels span{color:var(--mute);font-size:.88rem}
@media (max-width:700px){
  .chain-svg{display:none}
  .chain-labels{grid-template-columns:1fr;text-align:left;gap:0;margin-left:6px}
  .chain-labels li{padding:12px 0 12px 22px;border-left:2px solid var(--amber);position:relative}
  .chain-labels li::before{content:"";position:absolute;left:-7px;top:20px;width:12px;height:12px;border-radius:50%;background:var(--amber)}
}
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.feat>div{background:var(--ink);padding:28px}
.feat b{font:400 1.6rem var(--disp);color:var(--amber)}
@media (max-width:899px){.feat{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.feat{grid-template-columns:1fr}}
.sched{display:flex;height:120px;align-items:flex-end;gap:3px;margin:24px 0 8px}
.sched .full{flex:5;height:100%;background:linear-gradient(180deg,var(--amber2),var(--amber));border-radius:6px 6px 0 0}
.sched .dim{flex:6;height:52%;background:rgba(233,162,59,.45);border-radius:6px 6px 0 0}
.sched-axis{display:grid;grid-template-columns:5fr 6fr;color:var(--mute);font:500 .88rem var(--cond);letter-spacing:.06em}
.sched-axis>span:last-child{display:flex;justify-content:space-between}
.sched-key{display:flex;gap:20px;flex-wrap:wrap;color:var(--mute);font-size:.9rem;margin:10px 0}
.sched-key i{display:inline-block;width:12px;height:12px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.k-full{background:var(--amber)}
.k-dim{background:rgba(233,162,59,.45)}

/* services */
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:28px 20px;counter-reset:step}
.steps li{counter-increment:step;border-top:2px solid var(--amber);padding-top:18px}
.steps li::before{content:counter(step,decimal-leading-zero);font:400 2rem var(--disp);color:var(--amber2);display:block;margin-bottom:6px}
@media (max-width:899px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.mit{border:1px solid var(--line);border-radius:16px;padding:clamp(28px,4vw,48px);background:radial-gradient(120% 140% at 100% 0%,rgba(var(--glow),.14),transparent 60%),var(--navy)}
.mit-mark{font:400 clamp(3rem,7vw,5rem)/1 var(--disp);color:var(--amber2);margin-bottom:.2em}

/* standards */
.cert{display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,4vw,48px);align-items:start;border:1px solid var(--line);border-radius:16px;padding:clamp(24px,4vw,44px);background:var(--ink)}
.seal{width:120px;height:120px;border-radius:50%;border:2px solid var(--amber);display:grid;place-items:center;text-align:center;font:600 1.05rem/1.2 var(--cond);color:var(--amber2);letter-spacing:.06em}
@media (max-width:600px){.cert{grid-template-columns:1fr}}
.warranty{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.warranty>div{border-top:1px solid var(--line);padding-top:18px}
.warranty b{display:block;font:400 clamp(2.2rem,4vw,3rem)/1.1 var(--disp);color:var(--amber2);margin-bottom:.3em}
.warranty b small{font:600 .9rem var(--cond);color:var(--mute);margin-left:.3em}
@media (max-width:899px){.warranty{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.warranty{grid-template-columns:1fr}}

/* about + contact */
.facts{margin:0}
.facts div{display:grid;grid-template-columns:150px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.facts dt{color:var(--mute)}
.facts dd{margin:0}
@media (max-width:560px){.facts div{grid-template-columns:1fr;gap:2px}}
.form{display:grid;gap:16px}
.field label{display:block;font-size:.92rem;color:var(--mute);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:var(--ink);color:var(--paper);border:1px solid rgba(243,239,230,.45);border-radius:10px;padding:.75em .9em;font:inherit}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--amber);outline:none}
.form-err{color:var(--amber2);min-height:1.4em;margin:0}

/* footer */
.site-foot{border-top:1px solid var(--line);background:#05080F;padding:56px 0 28px;font-size:.93rem}
.site-foot a{text-decoration:none}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.foot-name{font-weight:600;margin-bottom:.2em}
.foot-links{list-style:none;padding:0}
.foot-links li{margin-bottom:.35em}
.foot-base{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid var(--line);margin-top:40px;padding-top:20px;font-size:.84rem}
@media (max-width:899px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.foot-grid{grid-template-columns:1fr}}

/* scroll reveal: hidden only when JS is running (the .js class) */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

@media print{
  .js .reveal{opacity:1;transform:none}
  .site-head,.subnav{position:static}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}