/* Teal & White theme: white ground, logo navy text, logo teal accents */
:root{
  --bg:#ffffff; --bg-2:#f2f6f8; --surface:#ffffff; --surface-2:#e8f1f3;
  --line:#dbe3ea; --line-strong:#a9d9d8;
  --text:#14213d; --muted:#4f5f78; --faint:#5f6e85;
  --teal:#0a7c7b;   /* teal for text: 5:1 on white */
  --brand:#0ea5a4;  /* logo teal for fills and decoration */
  --teal-hi:#2cc4c2; --teal-deep:#0d6f6e; --teal-ink:#14213d;
  --navy:#14213d; --slate:#5b6b82; /* XyPulse brand colours */
  --red:#c2413b; --amber:#b7791f;
  --radius:4px; --max:1200px;
  --sans:"IBM Plex Sans","IBM Plex Sans Thai",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
[data-lang="th"] body{font-family:"IBM Plex Sans Thai","IBM Plex Sans",system-ui,sans-serif}
[data-lang="th"] h2,[data-lang="th"] h3{line-height:1.35}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
[data-lang="en"] .th,[data-lang="th"] .en{display:none!important}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:112px 0;position:relative}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:10px;margin-bottom:20px}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--teal)}
.eyebrow.center{justify-content:center}
h1,h2,h3{font-weight:700;line-height:1.15;letter-spacing:-.01em}
h2{font-size:clamp(30px,4vw,44px);max-width:22ch}
.sub{color:var(--muted);font-size:18px;margin-top:14px;max-width:60ch}
.tag{font-family:var(--mono);font-size:12px;letter-spacing:.06em;background:var(--teal-deep);color:#eafff8;padding:2px 8px;border-radius:2px;display:inline-block}
.btn{display:inline-flex;align-items:center;gap:10px;font:600 15px var(--sans);padding:14px 22px;border-radius:var(--radius);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .2s,border-color .2s,transform .2s}
.btn-primary{background:var(--teal);color:var(--teal-ink)}
.btn-primary:hover{background:var(--teal-hi);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--teal)}
a:focus-visible,button:focus-visible{outline:2px solid var(--teal);outline-offset:3px}

/* circuit-trace background */
.circuit{position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
   linear-gradient(var(--line) 1px,transparent 1px),
   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:96px 96px;
  mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 70% 40%,#000 0%,transparent 70%)}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(20,25,24,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:16px;height:80px;max-width:1320px}
.nav .wrap>*{flex-shrink:0}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo img{height:52px;width:auto}
.nav-slogan{font:500 11px var(--sans);letter-spacing:.18em;text-transform:uppercase;color:#fff;white-space:nowrap;padding-left:16px;border-left:1px solid var(--line-strong);line-height:28px}
.nav-slogan i{font-style:normal;color:var(--teal);padding:0 .3em}
@media (min-width:1081px) and (max-width:1365px){.nav-slogan{display:none}}
@media (max-width:640px){.nav-slogan{display:none}}
.slogan{font:500 14px var(--sans);letter-spacing:.32em;text-transform:uppercase;color:#fff;margin-bottom:22px}
.slogan i{font-style:normal;color:var(--teal);padding:0 .35em}
.nav ul{display:flex;gap:18px;list-style:none;margin-left:auto}
.nav ul a{text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap;color:var(--muted);transition:color .2s}
.nav ul a:hover{color:var(--text)}
.lang{display:flex;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-family:var(--mono);font-size:12px}
.lang button{background:none;border:0;color:var(--muted);padding:6px 10px;cursor:pointer;font:inherit}
.lang button[aria-pressed="true"]{background:var(--teal-deep);color:#fff}
.nav .btn{padding:9px 16px;font-size:14px;white-space:nowrap}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--text);border-radius:var(--radius);width:40px;height:40px;cursor:pointer}

/* ---------- hero ---------- */
.hero{padding:96px 0 0;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;position:relative}
.hero h1{font-size:clamp(40px,5.6vw,68px);letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--teal)}
.rule{display:flex;gap:8px;margin:28px 0}
.rule i{height:3px;width:72px;background:var(--teal-deep)}
.rule i+i{width:14px;background:var(--text)}
.hero p.lead{font-size:19px;color:var(--muted);max-width:46ch}
.hero .ctas{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-art{position:relative}
.hero-art::before{content:"";position:absolute;inset:10% 5%;background:radial-gradient(circle,rgba(14,165,164,.28),transparent 65%);filter:blur(20px)}
.hero-art img{position:relative;filter:drop-shadow(0 30px 60px rgba(0,0,0,.55))}
.hero-bar{margin-top:80px;border-top:1px solid var(--line);font-family:var(--mono);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.hero-bar .wrap{display:flex;justify-content:space-between;gap:16px;padding-top:22px;padding-bottom:22px;flex-wrap:wrap}
.live{display:inline-flex;align-items:center;gap:10px}
.live::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 0 rgba(14,165,164,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(14,165,164,0)}100%{box-shadow:0 0 0 0 rgba(14,165,164,0)}}

/* ---------- overview ---------- */
.overview .wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.overview .body{font-size:19px;color:var(--muted)}
.overview .body strong{color:var(--text);font-weight:600}
.hl{grid-column:1/-1;display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:72px}
.hl div{background:var(--bg);padding:24px 20px}
.hl>div>span{font-family:var(--mono);font-size:12px;color:var(--teal)}
.hl p{margin-top:10px;font-weight:600;line-height:1.35}

/* ---------- before / after ---------- */
.ba{background:var(--bg-2)}
.ba-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:24px;margin-top:56px}
.col{border:1px solid var(--line);border-radius:var(--radius);padding:32px;background:var(--bg)}
.col.after{border-color:var(--line-strong);background:linear-gradient(180deg,rgba(14,165,164,.14),transparent 60%),var(--bg)}
.col h3{font-family:var(--mono);font-size:13px;letter-spacing:.14em;font-weight:500;margin-bottom:6px}
.col.before h3{color:var(--red)}
.col.after h3{color:var(--teal)}
.col .title{font-size:22px;font-weight:700;margin-bottom:22px}
.col ol{list-style:none;display:grid;gap:14px}
.col li{display:grid;grid-template-columns:34px 1fr;gap:8px;align-items:start}
.col li>span{font-family:var(--mono);font-size:13px;color:var(--faint);padding-top:2px}
.col.after ol{grid-template-columns:1fr 1fr;column-gap:24px;row-gap:18px}
.col.after li b{display:block;font-weight:600}
.col.after li small{color:var(--muted);font-size:14px;line-height:1.5;display:block;margin-top:2px}
.col.before li{color:var(--muted)}

/* ---------- concept / dimensions ---------- */
.concept .top{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.concept .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.concept .chips span{font-family:var(--mono);font-size:13px;border:1px solid var(--line);padding:6px 12px;border-radius:999px;color:var(--muted)}
.tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:88px}
.tabs button{background:var(--surface);border:1px solid var(--line);color:var(--muted);text-align:left;padding:16px;border-radius:var(--radius);cursor:pointer;font:inherit;transition:border-color .2s,color .2s,background .2s}
.tabs button span{font-family:var(--mono);font-size:12px;display:block;color:var(--faint)}
.tabs button b{display:block;font-size:14px;font-weight:600;margin-top:6px;line-height:1.3}
.tabs button:hover{color:var(--text)}
.tabs button[aria-selected="true"]{border-color:var(--teal);color:var(--text);background:linear-gradient(180deg,rgba(14,165,164,.12),transparent),var(--surface)}
.tabs button[aria-selected="true"] span{color:var(--teal)}
.panel{display:none;grid-template-columns:1fr 1fr 1.15fr;gap:40px;border:1px solid var(--line);border-top:2px solid var(--teal);border-radius:var(--radius);padding:40px;margin-top:16px;background:var(--bg-2);align-items:center}
.panel.active{display:grid;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}}
.panel h3{font-size:26px}
.panel .th-sub{color:var(--muted);margin-top:6px}
.panel h4{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--teal);font-weight:500;margin:0 0 14px}
.panel h4.fields-label{margin-top:28px}
.fields{display:flex;flex-wrap:wrap;gap:8px}
.fields span{background:var(--surface);border:1px solid var(--line);padding:6px 12px;font-size:14px;border-radius:var(--radius)}
.benefits{list-style:none;display:grid;gap:12px}
.benefits li{padding-left:22px;position:relative;color:var(--muted)}
.benefits li::before{content:"";position:absolute;left:0;top:.6em;width:10px;height:2px;background:var(--teal)}
.panel .art img{max-height:260px;margin:0 auto;object-fit:contain}
.stack{display:grid;gap:10px;max-width:280px;margin:0 auto}
.stack div{border:1px solid var(--line-strong);border-radius:8px;padding:14px 18px;font-weight:600;display:flex;justify-content:space-between;background:linear-gradient(90deg,rgba(14,165,164,.15),transparent)}
.stack div i{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--teal)}

/* ---------- capabilities ---------- */
.caps{background:var(--bg-2)}
.mods{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px}
.mod{border:1px solid var(--line-strong);border-radius:var(--radius);padding:24px;background:var(--bg);position:relative;transition:transform .2s,border-color .2s}
.mod:hover{transform:translateY(-3px);border-color:var(--teal)}
.mod::after{content:"";position:absolute;top:22px;right:22px;width:7px;height:7px;border-radius:50%;background:var(--text);opacity:.8}
.mod h3{font-size:18px;margin:16px 0 8px}
.mod p{color:var(--muted);font-size:15px;line-height:1.55}
.uc-head{font-family:var(--mono);font-size:13px;letter-spacing:.2em;color:var(--muted);margin:64px 0 16px;display:flex;align-items:center;gap:16px}
.uc-head::after{content:"";flex:1;height:1px;background:var(--line)}
.ucs{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.uc{background:var(--teal-deep);padding:20px 18px;border-radius:2px}
.uc>span{font-family:var(--mono);font-size:12px;opacity:.8}
.uc b{display:block;margin:8px 0;line-height:1.3}
.uc p{font-size:14px;color:#d8ebe5;line-height:1.5}

/* ---------- ISO ---------- */
.iso .wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px}
.iso-badge{margin-top:36px;display:inline-flex;align-items:center;gap:14px;border:1px solid var(--line-strong);padding:14px 18px;border-radius:var(--radius)}
.iso-badge b{font-family:var(--mono);font-size:22px;color:var(--teal)}
.iso-badge small{color:var(--muted);font-size:13px;line-height:1.4}
table{width:100%;border-collapse:collapse}
th{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--faint);text-align:left;font-weight:500;padding:0 16px 14px 0;border-bottom:1px solid var(--line-strong)}
td{padding:18px 16px 18px 0;border-bottom:1px solid var(--line);vertical-align:top}
td:first-child{font-family:var(--mono);color:var(--teal);font-size:14px;width:48px}
td b{font-weight:600}
td:last-child{color:var(--muted);font-size:15px}

/* ---------- roadmap (placeholder) ---------- */
.roadmap{border-top:1px solid var(--line)}
.roadmap-soon{margin-top:40px;border:1px dashed var(--line-strong);border-radius:8px;padding:48px 32px;display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center}
.roadmap-soon p{color:var(--muted);font-size:18px;max-width:52ch}

/* ---------- login button + portal page ---------- */
.nav .nav-login{padding:9px 14px;gap:8px}
.nav-login.is-current{border-color:var(--teal);color:var(--teal)}
.menu-only{display:none}
.portal-page{padding:96px 0 112px;overflow:hidden}
.portal-head{text-align:center;display:flex;flex-direction:column;align-items:center;position:relative}
.portal-head h1{font-size:clamp(34px,4.6vw,56px);letter-spacing:-.02em;text-wrap:balance}
.portal-head .sub{margin-left:auto;margin-right:auto}
.portals{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;position:relative}
.portal{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface);transition:transform .2s,border-color .2s}
.portal:hover{transform:translateY(-3px);border-color:var(--teal)}
.portal-art{height:180px;display:grid;place-items:center;background:radial-gradient(circle at 70% 20%,rgba(44,196,194,.35),transparent 55%),linear-gradient(135deg,var(--teal-deep),var(--navy))}
.portal-art svg{width:120px;height:120px}
.portal-art .hex{fill:rgba(255,255,255,.06);stroke:rgba(255,255,255,.85);stroke-width:3;stroke-linejoin:round}
.portal-art .ln{fill:none;stroke:#ffffff;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.portal-art .ac{fill:none;stroke:#2cc4c2;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}
.portal-body{display:flex;flex-direction:column;gap:12px;padding:28px;flex:1}
.portal-body h2{font-size:22px;max-width:none}
.portal-body p{color:var(--muted);font-size:15px;line-height:1.6;flex:1}
.portal-btn{align-self:flex-start;margin-top:8px}
.portal-btn .soon,.portal-btn.is-soon .go{display:none}
.portal-btn.is-soon .soon{display:inline}
.portal-btn.is-soon,.portal-btn.is-soon:hover{background:transparent;color:var(--muted);border-color:var(--line);cursor:default;transform:none}
.portal-help{text-align:center;color:var(--muted);margin-top:40px}
.portal-help a{color:var(--teal);font-weight:600}
.notfound-cta{margin-top:32px}
.portal-head .logo{margin-bottom:40px}

/* ---------- video ---------- */
.video{background:var(--bg-2);text-align:center}
.video h2,.video .sub{margin-left:auto;margin-right:auto}
.player{margin:48px auto 0;max-width:980px;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden;background:#000;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.player video{width:100%;display:block;aspect-ratio:16/9}

/* ---------- value ---------- */
.value .wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center}
.insight{border-left:3px solid var(--teal);padding:8px 0 8px 24px;margin-top:32px}
.insight>span{font-family:var(--mono);color:var(--teal);font-size:13px}
.insight p{font-size:22px;font-weight:600;margin-top:8px;line-height:1.4}
.vlist{list-style:none;border-top:1px solid var(--line)}
.vlist li{display:grid;grid-template-columns:48px 1fr;padding:20px 0;border-bottom:1px solid var(--line);font-size:17px}
.vlist li>span{font-family:var(--mono);color:var(--faint);font-size:14px;padding-top:2px}

/* ---------- contact ---------- */
.contact{overflow:hidden}
.contact .box{border:1px solid var(--line-strong);border-radius:8px;padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:56px;background:linear-gradient(135deg,rgba(14,165,164,.25),transparent 55%),var(--bg-2);position:relative}
.contact h2{font-size:clamp(28px,3.6vw,40px)}
form{display:grid;gap:14px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-size:13px;color:var(--muted);display:grid;gap:6px}
input,textarea,select{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;width:100%}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,165,164,.35)}
textarea{min-height:100px;resize:vertical}
.form-note{font-size:14px;color:var(--teal);min-height:1.4em}

footer{border-top:1px solid var(--line);padding:40px 0;color:var(--faint);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
footer .foot-logo img{height:72px}footer .mono{font-family:var(--mono);letter-spacing:.14em;font-size:12px}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.live::before{animation:none}html{scroll-behavior:auto}}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav ul{display:none}
  .menu-btn{display:block;margin-left:auto}
  .nav .nav-login{display:none}
  .menu-only{display:list-item}
  .portals{gap:16px}
  .portal-body{padding:22px}
  .nav.open ul{display:flex;flex-direction:column;position:absolute;top:80px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:16px 24px;gap:16px}
  .mods{grid-template-columns:repeat(2,1fr)}
  .ucs{grid-template-columns:repeat(3,1fr)}
  .tabs{grid-template-columns:repeat(3,1fr)}
  .panel{grid-template-columns:1fr 1fr}
  .panel .art{grid-column:1/-1;order:-1}
  .hl{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:820px){
  section{padding:80px 0}
  .wrap{padding:0 16px}
  .hero{padding-top:56px}
  .hero .wrap,.overview .wrap,.concept .top,.iso .wrap,.value .wrap,.contact .box,.ba-grid{grid-template-columns:1fr}
  .col.after ol{grid-template-columns:1fr}
  .hl{grid-template-columns:1fr 1fr}
  .contact .box{padding:28px 20px}
  .nav .btn{display:none}
  .panel{grid-template-columns:1fr;padding:24px}
  .tabs{grid-template-columns:1fr 1fr}
  .portals{grid-template-columns:1fr}
  .portal-page{padding:56px 0 80px}
}
@media (max-width:520px){
  .mods,.ucs{grid-template-columns:1fr}
  .row{grid-template-columns:1fr}
  .logo img{height:42px}
  .slogan{font-size:12px;letter-spacing:.2em}
}

/* ---------- Teal & White theme overrides ---------- */
.nav{background:rgba(255,255,255,.9);box-shadow:0 1px 0 var(--line)}
.nav-slogan,.slogan{color:var(--navy)}
.nav-slogan i,.slogan i{color:var(--teal)}
.eyebrow::before,.rule i,.live::before,.benefits li::before{background:var(--brand)}
.btn-primary{background:var(--brand);color:var(--navy)}
.btn-ghost{border-color:var(--navy)}
.btn-ghost:hover{border-color:var(--brand);color:var(--teal)}
.hero{background:linear-gradient(180deg,#ffffff 0%,#eef7f7 100%)}
.hero-art::before{background:radial-gradient(circle,rgba(14,165,164,.22),transparent 65%)}
.hero-art img{filter:drop-shadow(0 30px 50px rgba(20,33,61,.28))}
.circuit{opacity:.7}
.hl div{background:var(--bg)}
.col{box-shadow:0 1px 2px rgba(20,33,61,.04)}
.col.after{background:linear-gradient(180deg,rgba(14,165,164,.08),transparent 60%),var(--bg)}
.concept .top img{background:radial-gradient(closest-side,#e3f3f3 0%,rgba(227,243,243,0) 100%)}
.tabs button[aria-selected="true"]{border-color:var(--brand);background:linear-gradient(180deg,rgba(14,165,164,.10),transparent),var(--surface)}
.panel{border-top-color:var(--brand);background:var(--bg-2)}
.fields span{background:var(--bg)}
.mod{border-color:var(--line);box-shadow:0 1px 2px rgba(20,33,61,.05)}
.mod:hover{border-color:var(--brand);box-shadow:0 10px 30px rgba(20,33,61,.08)}
.mod::after{background:var(--brand)}
.uc{background:var(--navy);color:#ffffff}
.uc>span{color:#7fd6d5;opacity:1}
.uc p{color:#c9d3e3}
.stack div{border-color:var(--brand);background:linear-gradient(90deg,rgba(14,165,164,.12),transparent)}
.insight{border-left-color:var(--brand)}
.player{box-shadow:0 30px 60px rgba(20,33,61,.22)}
.contact .box{background:linear-gradient(135deg,rgba(14,165,164,.12),transparent 55%),var(--bg-2)}
.lang button[aria-pressed="true"]{background:var(--navy)}
footer{background:var(--bg-2)}