:root{
  --paper:#FFFFFF;
  --paper-deep:#F4F4F6;
  --paper-card:#FFFFFF;
  --ink:#161616;
  --ink-soft:#67676B;
  --ink-faint:rgba(22,22,22,.55);
  --line:rgba(22,22,22,.10);
  --line-strong:rgba(22,22,22,.18);
  --accent:#23305B;
  --accent-soft:rgba(35,48,91,.10);
  --accent-ink:#FFFFFF;
  --accent-warm:#3D5586;
  --accent-warm-soft:rgba(61,85,134,.14);
  --shadow:0 30px 70px -34px rgba(22,22,22,.22);
  --shadow-sm:0 14px 36px -20px rgba(22,22,22,.16);
  --radius:18px;
  --grade-photo:contrast(1.03) saturate(1.02) brightness(1.01);
  --grade-editorial:contrast(1.05) saturate(1) brightness(1.01);

  --sku-plusfine:#2C5F94;    --sku-plusfine-soft:rgba(44,95,148,.14);
  --sku-plusdeep:#2E7D53;    --sku-plusdeep-soft:rgba(46,125,83,.14);
  --sku-extradeep:#B7333B;   --sku-extradeep-soft:rgba(183,51,59,.14);
  --sku-volumizer:#29A6A6;   --sku-volumizer-soft:rgba(41,166,166,.14);
  --sku-lips:#D97C9C;        --sku-lips-soft:rgba(217,124,156,.14);

  --display:'Manrope Var', -apple-system, 'Segoe UI', sans-serif;
  --sans:'Manrope Var', -apple-system, 'Segoe UI', sans-serif;
  --thai:'Prompt', var(--sans), sans-serif;

  color-scheme: light;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#141414;
    --paper-deep:#1B1B1D;
    --paper-card:#1F1F22;
    --ink:#F5F5F6;
    --ink-soft:#B7B7BC;
    --ink-faint:rgba(245,245,246,.58);
    --line:rgba(245,245,246,.14);
    --line-strong:rgba(245,245,246,.24);
    --accent:#D3E4F1;
    --accent-soft:rgba(211,228,241,.16);
    --accent-ink:#141414;
    --accent-warm:#F4F7FF;
    --accent-warm-soft:rgba(244,247,255,.16);
    --shadow:0 30px 70px -30px rgba(0,0,0,.6);
    --shadow-sm:0 14px 36px -18px rgba(0,0,0,.55);
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --paper:#141414;
  --paper-deep:#1B1B1D;
  --paper-card:#1F1F22;
  --ink:#F5F5F6;
  --ink-soft:#B7B7BC;
  --ink-faint:rgba(245,245,246,.58);
  --line:rgba(245,245,246,.14);
  --line-strong:rgba(245,245,246,.24);
  --accent:#D3E4F1;
  --accent-soft:rgba(211,228,241,.16);
  --accent-ink:#141414;
  --accent-warm:#F4F7FF;
  --accent-warm-soft:rgba(244,247,255,.16);
  --shadow:0 30px 70px -30px rgba(0,0,0,.6);
  --shadow-sm:0 14px 36px -18px rgba(0,0,0,.55);
  color-scheme: dark;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto;} }

html{overflow-x:hidden;}
body{
  margin:0;
  overflow-x:hidden;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--thai);
  font-weight:400;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,canvas{display:block;max-width:100%;}
a{color:inherit;}
button{font:inherit;color:inherit;}

.en{font-family:var(--sans);}
.th{font-family:var(--thai);}
.eyebrow{
  font-family:var(--sans);
  font-weight:700;
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
}
.eyebrow .flag-ch{vertical-align:-2px;margin-right:2px;border-radius:2px;}
.display{
  font-family:var(--display);
  font-weight:800;
  letter-spacing:-.02em;
  text-wrap:balance;
}
.display-th{
  font-family:var(--thai);
  font-weight:600;
  letter-spacing:0;
  text-wrap:balance;
}

h1,h2,h3{margin:0;text-wrap:balance;}
p{margin:0;}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding-left:clamp(20px,5vw,56px);
  padding-right:clamp(20px,5vw,56px);
}

.band{padding:clamp(72px,11vw,132px) 0;}
#strengths{padding-bottom:0;}
#stats{padding-top:clamp(40px,6vw,64px);}
.band-deep{background:var(--paper-deep);}
.band-ink{background:var(--ink);color:var(--paper);}

/* section-to-section gradient seams */
#about{background:linear-gradient(180deg, var(--paper), var(--paper-deep)) top / 100% 110px no-repeat, var(--paper-deep);}
#strengths{background:linear-gradient(180deg, var(--paper-deep), var(--paper)) top / 100% 110px no-repeat, var(--paper);}
#products{background:linear-gradient(180deg, var(--paper), var(--paper-deep)) top / 100% 110px no-repeat, var(--paper-deep);}
#zones{background:linear-gradient(180deg, var(--paper-deep), var(--paper)) top / 100% 110px no-repeat, var(--paper);}
#certifications{background:linear-gradient(180deg, var(--paper), var(--paper-deep)) top / 100% 110px no-repeat, var(--paper-deep);}
#contact{background:linear-gradient(180deg, var(--paper), var(--paper-deep)) top / 100% 110px no-repeat, var(--paper-deep);}
footer{background:var(--ink);}

hr.rule{border:none;border-top:1px solid var(--line);margin:0;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(46px);transition:opacity .9s cubic-bezier(.16,.8,.3,1), transform .9s cubic-bezier(.16,.8,.3,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:16px;left:16px;right:16px;z-index:50;
  max-width:1180px;margin:0 auto;
  background:var(--accent);
  border-radius:999px;
  box-shadow:0 24px 50px -22px rgba(35,48,91,.55);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 10px 10px clamp(20px,3.4vw,32px);
}
.brand{display:flex;flex-direction:column;gap:2px;text-decoration:none;color:#FFFFFF;}
.brand-mark{
  font-family:var(--display);font-weight:800;font-size:1.4rem;letter-spacing:-.01em;
}
.brand-mark sup{font-size:.5em;top:-.9em;}
.brand-sub{
  font-family:var(--sans);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.6);
}
.nav-links{
  display:flex;align-items:center;gap:clamp(18px,2.6vw,34px);
  font-family:var(--thai);font-size:.92rem;
}
.nav-links a{text-decoration:none;color:rgba(255,255,255,.82);position:relative;padding:4px 0;}
.nav-links a:hover{color:#FFFFFF;}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:#FFFFFF;
  transition:right .25s ease;
}
.nav-links a:hover::after{right:0;}
.nav-links .btn-primary{display:none;}
.nav .btn-primary{background:#FFFFFF;color:var(--accent);}
.nav .btn-primary:hover{background:var(--paper-deep);color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 24px;font-size:.9rem;font-weight:600;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
  font-family:var(--thai);
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{transform:translateY(-2px);background:var(--accent);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-block{width:100%;}

.nav-item{position:relative;display:flex;align-items:center;}
.nav-sub{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);
  background:#FFFFFF;border-radius:14px;padding:8px;min-width:150px;
  display:flex;flex-direction:column;gap:2px;
  box-shadow:var(--shadow-sm);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s ease, transform .2s ease, visibility .2s ease;
  z-index:60;
}
.nav-item.has-sub:hover .nav-sub,
.nav-item.has-sub:focus-within .nav-sub{
  opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);
}
.nav-sub a{
  color:var(--ink-soft);padding:9px 14px;border-radius:8px;font-size:.82rem;
  white-space:nowrap;letter-spacing:.04em;
}
.nav-sub a:hover{background:var(--paper-deep);color:var(--ink);}
.nav-sub a::after{display:none;}

.nav-cta{display:flex;align-items:center;gap:18px;}
.nav-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:6px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:#FFFFFF;margin:5px 0;transition:transform .25s ease, opacity .25s ease;}

@media (max-width: 860px){
  .nav-links{
    position:fixed;top:84px;left:12px;right:12px;background:#FFFFFF;
    border-radius:20px;
    flex-direction:column;align-items:flex-start;gap:0;
    padding:8px clamp(20px,5vw,32px) 24px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .25s ease, transform .25s ease;
    box-shadow:0 24px 48px -20px rgba(22,22,22,.35);
    z-index:49;
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-links a{width:100%;padding:14px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);}
  .nav-links a:hover{color:var(--ink);}
  .nav-links a::after{background:var(--accent);}
  .nav-item{flex-direction:column;align-items:flex-start;width:100%;border-bottom:1px solid var(--line);}
  .nav-item > a{border-bottom:none;}
  .nav-sub{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;padding:0 0 4px 16px;min-width:0;width:100%;
  }
  .nav-sub a{width:100%;padding:10px 0;border-bottom:none;font-size:.85rem;}
  .nav-cta .btn-primary{display:none;}
  .nav-links .btn-primary{display:inline-flex;margin-top:14px;background:var(--ink);color:var(--paper);}
  .nav-toggle{display:block;}
}

/* ---------- hero ---------- */
/* The hero is authored at a fixed 1600x760 reference size (.hero-scale) and
   scaled down as one unit via CSS container-query width so the exact same
   composition (text + portrait spacing) holds at every viewport, phones
   included, instead of switching to a different stacked layout. */
.hero{
  position:relative;
  padding-top:118px;
  background:linear-gradient(115deg, #76A5DD 0%, #A6C7E9 34%, #D2E4F4 64%, var(--paper) 100%);
}
.hero-stage{
  position:relative;width:100%;
  aspect-ratio:1600/760;
  container-type:inline-size;
  overflow:visible;
}
.hero-scale{
  position:absolute;top:0;left:50%;
  width:1600px;height:760px;
  transform:translateX(-50%) scale(min(1, calc(100cqw / 1600px)));
  transform-origin:top center;
}
.hero-inner{
  position:relative;z-index:2;
  max-width:1180px;margin:0 auto;height:100%;
  min-height:540px;
  display:flex;align-items:center;justify-content:center;
  padding:0 56px 72px;
}
.hero-copy{position:relative;max-width:820px;margin:0 auto;color:#FFFFFF;text-align:center;--shift:430px;}
.hero-eyebrow{display:block;font-family:var(--sans);font-size:1.7rem;font-weight:500;letter-spacing:.03em;opacity:.85;}
.hero-title{
  font-family:var(--display);font-weight:800;
  font-size:9.5rem;line-height:.95;letter-spacing:-.02em;
  margin:10px 0 0;color:#FFFFFF;
}
.hero-title sup{font-size:.4em;top:-.8em;}
.hero-tagline{
  font-family:var(--thai);font-style:italic;font-size:1.9rem;
  opacity:.92;margin-top:18px;
}
.hero-copy.reveal{
  opacity:0;transform:translateX(calc(14% - var(--shift))) translateY(10px) scale(.94);
  transition:opacity 1.15s cubic-bezier(.16,.8,.3,1), transform 1.15s cubic-bezier(.16,.8,.3,1);
}
.hero-copy.reveal.in{opacity:1;transform:translateX(calc(-1 * var(--shift)));}
@media (prefers-reduced-motion: reduce){
  .hero-copy.reveal{opacity:1;transform:translateX(calc(-1 * var(--shift)));transition:none;}
}
.hero-portrait{
  --bleed:-362px;
  position:absolute;right:145px;top:0;bottom:var(--bleed);z-index:1;
  display:flex;align-items:flex-end;justify-content:flex-end;
  pointer-events:none;
  transform:translateY(3.5px) scale(1.18);
  transform-origin:bottom right;
}
.hero-portrait img{
  height:100%;width:auto;display:block;
  filter:var(--grade-photo);
}
/* Below desktop width the section this bleeds onto reflows independently
   (it no longer shrinks in lockstep with the hero), so the overlap grows
   out of proportion. Only shrink the bleed here — desktop is untouched. */
@media (max-width:900px){
  .hero-portrait{--bleed:-110px;}
  .hero-portrait img{
    -webkit-mask-image:linear-gradient(to bottom, #000 0%, #000 82%, transparent 100%);
    mask-image:linear-gradient(to bottom, #000 0%, #000 82%, transparent 100%);
  }
}