/* ===========================================================
   ANSAM CHEMICALS — Website styles
   Brand: teal #3990A6 (logo) · ANSAM navy #263A8B
   Type:  Urbanist (OFL, self-hosted) — geometric sans chosen as the
          closest free match to Merel, which is commercially licensed
          and cannot be served from a web server.
   =========================================================== */

@font-face{font-family:"Urbanist";src:url("../fonts/urbanist-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Urbanist";src:url("../fonts/urbanist-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Urbanist";src:url("../fonts/urbanist-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}

:root{
  /* CHEMICALS teal leads the palette; ANSAM navy supports it */
  --teal:#2F7F93;        /* logo teal #3990A6 deepened 6% so small text clears AA */
  --teal-deep:#1E5A6B;
  --teal-ink:#2F7F93;    /* section background */
  --teal-pale:#A9DDE9;   /* accents on dark backgrounds */
  /* one hue across the page: the dark tones are the teal, deepened.
     ANSAM navy #263A8B stays in the logo artwork only, so the two
     never compete on the same surface. */
  --deep:#16505F;        /* kickers, icons, small accents on light */
  --deep-action:#0A2E39; /* buttons — darkest element, so the CTA leads */
  --teal-light:#5BAFC2;
  --ink:#10222A;        /* near-black, biased teal */
  --body:#48606A;       /* body grey, biased teal */
  --line:#DCE8EA;       /* hairlines */
  --soft:#F1F7F8;       /* section ground — a 5% wash of the hero teal */
  --white:#fff;

  --wrap:1180px;
  --r:14px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Urbanist","Avenir Next",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--body);
  background:var(--white);
  font-size:17px;
  line-height:1.74;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit}

h1,h2,h3,.brand,.btn{font-family:var(--font);color:var(--ink)}
h1,h2,h3{margin:0 0 .5em;line-height:1.18;font-weight:600;letter-spacing:-.02em}
h1{font-size:clamp(2.6rem,6.2vw,4.6rem);letter-spacing:-.035em;line-height:1.06}
h2{font-size:clamp(1.75rem,3.2vw,2.6rem)}
h3{font-size:1.16rem;letter-spacing:-.012em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:26px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:200;background:#fff;padding:10px 16px;border-radius:8px}
.dim{color:#8DA0A8; font-size:.92em}
/* on a mid-teal ground no tint of white passes AA, so secondary labels
   step down in size rather than in opacity */
.section--dark .dim,.site-footer .dim{color:#fff;font-size:.88em}

/* ---------- Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto;z-index:100;
  transition:background .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
  border-bottom:1px solid transparent;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:126px}
.brand{display:block;flex:none}
.brand-logo{height:88px;width:auto;transition:opacity .3s}
.brand-logo--dark{display:none}

.site-header.is-stuck{
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-color:var(--line);
  box-shadow:0 1px 30px rgba(12,40,48,.07);
}
.site-header.is-stuck .brand-logo--light{display:none}
.site-header.is-stuck .brand-logo--dark{display:block}

.nav{display:flex;align-items:center;gap:30px}
.nav a{
  color:#fff;text-decoration:none;font-size:1rem;
  font-weight:500;letter-spacing:.005em;transition:color .25s;position:relative;
}
.nav a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-6px;height:1.5px;width:0;
  background:#fff;transition:width .3s var(--ease);
}
.nav a:hover::after{width:100%}
.nav a:hover{color:#fff}
.nav-cta{
  padding:11px 24px;border:1px solid rgba(255,255,255,.35);border-radius:999px;
  transition:background .25s,border-color .25s,color .25s;
}
.nav-cta:hover{background:#fff;border-color:#fff;color:var(--deep)!important}

/* link back to the group site — set apart from the in-page nav by a divider */
.nav-group{display:inline-flex;align-items:center;gap:6px;padding-left:32px;position:relative}
.nav-group::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:16px;background:rgba(255,255,255,.22);
}
.nav-group svg{width:10px;height:10px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;opacity:.75}
.site-header.is-stuck .nav-group::before{background:var(--line)}

.site-header.is-stuck .nav a{color:var(--ink)}
.site-header.is-stuck .nav a:hover{color:var(--deep)}
.site-header.is-stuck .nav-cta{border-color:var(--deep);color:var(--deep)}
.site-header.is-stuck .nav-cta:hover{background:var(--deep);color:#fff!important}

.burger{display:none;width:44px;height:44px;background:none;border:0;cursor:pointer;padding:11px}
.burger span{display:block;height:1.5px;background:#fff;margin:6px 0;transition:transform .3s var(--ease),opacity .2s}
.site-header.is-stuck .burger span{background:var(--ink)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 30px;border-radius:999px;text-decoration:none;
  font-size:.97rem;font-weight:500;letter-spacing:.01em;
  transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s,box-shadow .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--deep-action);color:#fff;box-shadow:0 10px 30px rgba(12,17,45,.42)}
.btn-primary:hover{background:#061F27;box-shadow:0 14px 38px rgba(12,17,45,.52)}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.section--band .btn-primary{margin-top:8px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:218px 0 0;overflow:hidden;background:var(--teal);isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(160deg,#35899E 0%,#2F7F93 50%,#2A7286 100%);
}
.molecules{position:absolute;inset:0;width:100%;height:100%}
.bond{stroke:rgba(255,255,255,.42);stroke-width:7;stroke-linecap:round}
.bond--far{stroke:rgba(255,255,255,.30);stroke-width:5}
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none}
.glow--a{width:620px;height:620px;top:-220px;right:-160px;background:rgba(255,255,255,.20)}
.glow--b{width:520px;height:520px;bottom:-260px;left:-140px;background:rgba(10,46,57,.50)}
.glow--c{width:560px;height:560px;top:-180px;left:-120px;background:rgba(255,255,255,.14)}
.glow--d{width:600px;height:600px;bottom:-280px;right:-120px;background:rgba(10,46,57,.30)}

/* the half-circle mark from the logo, oversized as a watermark */
.arc-motif{
  position:absolute;right:-90px;bottom:-120px;width:440px;height:220px;
  background:rgba(255,255,255,.09);
  border-radius:0 0 440px 440px;
}

.hero-inner{position:relative;padding-bottom:76px;max-width:920px}
.eyebrow{
  font-size:.9rem;letter-spacing:.18em;text-transform:uppercase;
  color:#fff;font-weight:500;margin-bottom:22px;
}
.eyebrow a{text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:2px;transition:color .25s,border-color .25s}
.eyebrow a:hover{color:#fff;border-color:#fff}
.hero h1{color:#fff;margin-bottom:26px}
.hero-lead{color:#fff;font-size:clamp(1.1rem,1.7vw,1.3rem);max-width:640px;line-height:1.62}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.stat-strip{
  position:relative;list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.28);
}
.stat-strip li{padding:30px 26px 40px;border-right:1px solid rgba(255,255,255,.28)}
.stat-strip li:first-child{padding-left:0}
.stat-strip li:last-child{border-right:0}
.stat-strip b{
  display:block;font-family:var(--font);font-weight:600;
  font-size:clamp(1.15rem,1.9vw,1.55rem);color:#fff;letter-spacing:-.02em;line-height:1.15;
}
.stat-strip span{display:block;margin-top:8px;font-size:.92rem;color:#fff;letter-spacing:.01em;line-height:1.45}

/* ---------- Sections ---------- */
.section{padding:110px 0;position:relative}
.section--soft{background:var(--soft)}
/* a stronger wash of the hero teal — distinct from --soft, still a light ground */
.section--tint{background:#E6F1F3}
.section--dark{background:var(--teal-ink);color:#fff;overflow:hidden;isolation:isolate}
.section--dark h2,.section--dark h3{color:#fff}
/* no bold weight available, so headings on teal need extra size to separate
   from body copy that shares their colour */
.section--dark h3{font-size:1.2rem;margin-bottom:10px;letter-spacing:-.015em}
.dark-bg{position:absolute;inset:0;z-index:-1}

.kicker{
  font-size:.88rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--deep);font-weight:600;margin-bottom:16px;
}
.section--dark .kicker{color:#fff}
.sec-head{max-width:660px;margin-bottom:62px}
.sec-head h2{margin-bottom:0}
.lead{font-size:1.14rem;color:#2E4550;line-height:1.7}
.section--dark .lead{color:#fff}

.grid-2{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}

/* Vision / Mission */
.vm{display:grid;grid-template-columns:1fr 1fr;gap:34px;margin-top:40px;padding-top:34px;border-top:1px solid var(--line)}
.vm-item h3{color:var(--deep);margin-bottom:8px}
.vm-item p{font-size:1rem;line-height:1.68}

/* Values */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:86px;border-top:1px solid var(--line)}
.value{padding:38px 40px 8px;border-right:1px solid var(--line)}
.value:first-child{padding-left:0}
.value:last-child{border-right:0;padding-right:0}
.value-no{
  display:block;font-family:var(--font);font-size:.86rem;
  letter-spacing:.15em;color:var(--deep);margin-bottom:16px;
}
.value h3{font-weight:600}
.value h3 em{display:block;font-style:normal;color:var(--body);font-size:.95em}
.value p{font-size:1rem;margin-top:10px;line-height:1.68}

/* ---------- Cards (sectors) ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:34px 30px 32px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
}
.card:hover{transform:translateY(-6px);box-shadow:0 22px 50px rgba(12,40,48,.10);border-color:#C9DDE0}
.ico{width:40px;height:40px;margin-bottom:24px;fill:none;stroke:var(--teal);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.ico .ac{stroke:var(--deep)}
.card h3{margin-bottom:10px}
.card p{font-size:1rem;line-height:1.68}
.note{
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
  font-size:.98rem;color:#556A73;max-width:760px;line-height:1.7;
}

/* ---------- Why grid ---------- */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.why{background:#fff;padding:36px 34px;transition:background .35s}
.why:hover{background:var(--soft)}
.why h3{color:var(--deep);margin-bottom:8px}
.why p{font-size:1rem;line-height:1.68}

/* ---------- Steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.steps li{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:32px 30px 30px;position:relative;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;
}
.steps li:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(12,40,48,.10);border-color:#C9DDE0}
.steps span{
  display:block;font-family:var(--font);font-size:.86rem;
  letter-spacing:.15em;color:var(--deep);margin-bottom:16px;
}
.steps h3{color:var(--ink);font-size:1.2rem;margin-bottom:9px;letter-spacing:-.015em}
.steps p{font-size:1rem;color:var(--body);line-height:1.68}
.cap-note{
  margin-top:34px;padding:30px 34px;border-left:3px solid var(--deep);
  background:#fff;border-radius:0 var(--r) var(--r) 0;
  box-shadow:0 12px 32px rgba(12,40,48,.06);
}
.cap-note b{color:var(--ink);font-weight:600}
.cap-note p{font-size:1.03rem;line-height:1.72;max-width:820px;color:var(--body)}

/* ---------- Ticks ---------- */
.ticks{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.ticks li{position:relative;padding:15px 0 15px 34px;border-bottom:1px solid var(--line);font-size:1.02rem}
.ticks li:last-child{border-bottom:0}
.ticks li::before{
  content:"";position:absolute;left:2px;top:21px;width:12px;height:7px;
  border-left:1.8px solid var(--deep);border-bottom:1.8px solid var(--deep);
  transform:rotate(-45deg);
}

/* ---------- Licences ---------- */
.licences{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:74px}
.lic{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 26px 24px}
.lic b{display:block;font-family:var(--font);font-weight:600;color:var(--deep);font-size:1.12rem;letter-spacing:-.01em}
.lic span{display:block;margin-top:6px;font-size:.92rem;color:#5A7079}

/* ---------- Facilities ---------- */
.fac-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.fac{
  background:#fff;
  position:relative;padding:40px 34px 36px;border-radius:var(--r);
  border:1px solid var(--line);overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.fac:hover{transform:translateY(-5px);box-shadow:0 20px 46px rgba(12,40,48,.09)}
.fac::after{
  content:"";position:absolute;right:-70px;bottom:-70px;width:210px;height:210px;
  background:rgba(57,144,166,.07);border-radius:50%;
}
.pin{
  display:inline-block;font-size:.88rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--deep);font-weight:600;margin-bottom:18px;
}
.fac h3{margin-bottom:10px}
.fac p{font-size:1rem;line-height:1.68;position:relative;z-index:1}

/* ---------- Producers band ---------- */
.section--band{background:#fff;border-block:1px solid var(--line)}
.producers{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}
.producers .lead{margin-bottom:28px}
.pills{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:12px}
.pills li{
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:14px 26px;font-size:.97rem;color:var(--deep);font-weight:500;
  transition:transform .3s var(--ease),border-color .3s;
}
.pills li:hover{transform:translateY(-3px);border-color:var(--deep)}

/* ---------- Contact ---------- */
#contact{padding-bottom:44px}
.contact-wrap{
  display:grid;
  grid-template-columns:1fr .95fr 1.15fr 1.05fr;
  gap:34px;align-items:start;
}
.c-col{min-width:0}
/* labels sit on one baseline across all four columns */
.c-col .c-label:first-child{margin-top:0}
.c-label{
  font-size:.88rem;letter-spacing:.14em;text-transform:uppercase;
  color:#fff;font-weight:600;margin-bottom:14px;
}
.c-label:not(:first-child){margin-top:30px}
.c-body{font-size:1.02rem;line-height:1.9;color:#fff}
.c-mail{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.c-mail li{line-height:1.45}
.c-mail a{font-size:1.02rem;color:#fff;text-decoration:none;border-bottom:1px solid transparent;transition:border-color .25s;width:fit-content;max-width:100%;overflow-wrap:anywhere}
.c-mail a:hover{border-color:#fff}

.c-body a{text-decoration:none;transition:color .25s;border-bottom:1px solid transparent}
.c-body a:hover{color:#fff;border-color:var(--teal-pale)}

/* ---------- Contact map ---------- */
.btn-sm{padding:12px 26px;font-size:.92rem}
.map-col{display:flex;flex-direction:column;align-items:flex-start}
.map-col .map-frame{width:100%}

.map-frame{
  position:relative;border-radius:var(--r);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 24px 60px rgba(0,0,0,.35);
  aspect-ratio:5/4;
}
.map-frame iframe{
  position:absolute;inset:0;width:100%;height:100%;border:0;
  filter:grayscale(.42) contrast(1.04) brightness(.97);
}
/* brand tint over the map, clicks pass through to the iframe */
.map-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(140deg,rgba(10,46,57,.16),rgba(47,127,147,.12));
  mix-blend-mode:multiply;
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--teal-ink);       /* continues the Contact block */
  border-top:1px solid rgba(255,255,255,.22);
  padding:26px 0 34px;color:#fff;font-size:.92rem;
}
.footer-inner{display:grid;grid-template-columns:auto 1fr auto;gap:34px;align-items:center}
.footer-brand{display:block;flex:none;transition:opacity .25s}
.footer-brand:hover{opacity:.75}
.footer-logo{height:62px;width:auto}
.footer-meta p{margin:0;line-height:1.6}
.f-link{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.5);transition:color .25s,border-color .25s}
.f-link:hover{color:#fff;border-color:var(--teal-pale)}
.f-sites{margin-top:6px!important;font-size:.88rem}
.f-sites a{color:#fff;text-decoration:none;border-bottom:1px solid transparent;transition:border-color .25s}
.f-sites a:hover{border-color:#fff}
.f-sites .sep{color:rgba(255,255,255,.5);margin:0 7px}
.f-sites>span:not(.sep):not(.dim){color:#fff}
.copy{margin:0;text-align:right;white-space:nowrap}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
.reveal[data-d="5"]{transition-delay:.40s}

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

/* ===========================================================
   Responsive
   =========================================================== */
/* between tablet and desktop the enlarged logo would crowd the nav */
@media (max-width:1180px){
  .brand-logo{height:72px}
  .header-inner{height:108px}
  .nav{gap:20px}
  .nav a{font-size:.97rem}
  .nav-group{padding-left:20px}
}

@media (max-width:1080px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .why-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .fac-grid{grid-template-columns:1fr 1fr}
  .licences{grid-template-columns:repeat(2,1fr)}
  .contact-wrap{grid-template-columns:1fr 1fr;gap:40px}
  .map-col{grid-column:1/-1}
  .map-frame{max-width:420px;aspect-ratio:16/9}
}

@media (max-width:860px){
  .nav{
    position:fixed;inset:96px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:10px 26px 26px;border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(12,40,48,.10);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease),transform .3s var(--ease);
  }
  .nav.open{opacity:1;transform:none;pointer-events:auto}
  .nav a,.site-header.is-stuck .nav a{color:var(--ink);font-size:1rem;padding:15px 0;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav-group{padding-left:0;justify-content:flex-start}
  .nav-group::before{display:none}
  .nav-cta,.site-header.is-stuck .nav-cta{
    border:0;color:var(--teal)!important;text-align:left;padding:15px 0;border-bottom:0;
  }
  .nav-cta:hover,.site-header.is-stuck .nav-cta:hover{background:none;color:var(--deep)!important}
  .burger{display:block}
  .header-inner{height:96px}
  .brand-logo{height:64px}
  .footer-logo{height:56px}

  .section{padding:78px 0}
  .grid-2,.producers{grid-template-columns:1fr;gap:36px}
  .sec-head{margin-bottom:44px}
  .values{grid-template-columns:1fr;margin-top:58px}
  .value{padding:30px 0 6px;border-right:0;border-bottom:1px solid var(--line)}
  .value:last-child{border-bottom:0}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-strip li{padding:22px 20px 26px}
  .stat-strip li:nth-child(2n){border-right:0}
  .stat-strip li:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.14)}
  .stat-strip li:nth-child(3){padding-left:0}
  .footer-inner{grid-template-columns:1fr;gap:22px;text-align:left}
  .copy{text-align:left}
  .map-frame{aspect-ratio:16/10}
}

@media (max-width:620px){
  .hero{padding-top:158px}
  .hero-inner{padding-bottom:52px}
  .cards,.why-grid,.steps,.fac-grid,.licences,.contact-grid{grid-template-columns:1fr}
  .vm{grid-template-columns:1fr;gap:24px}
  .hero-actions .btn{flex:1 1 100%}
  .cap-note{padding:26px 24px}
}