/* ARTPOL – deep harbour blue, hi-vis yellow, water teal. System fonts for fast loading. */
:root{--bg:#f1f4f5;--card:#fff;--ink:#0e2433;--steel:#4b6272;--line:#cfd9de;--hivis:#f0b90b;--water:#2d8ea3;--font:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font:17px/1.65 var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:inherit}
svg{display:block;max-width:100%}
h1,h2,h3,h4{line-height:1.1;letter-spacing:-.02em;font-weight:800}
.wrap{width:min(1280px,100% - clamp(40px,8vw,112px));margin-inline:auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:var(--hivis);padding:8px 14px;z-index:99}
:focus-visible{outline:3px solid var(--water);outline-offset:3px}

/* Buttons */
.btn{display:inline-block;background:var(--hivis);color:var(--ink);padding:14px 28px;font:700 1rem var(--font);text-decoration:none;border:0;border-radius:2px;cursor:pointer;transition:background .2s,transform .2s}
.btn:hover{background:#ffd23f;transform:translateY(-2px)}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{background:var(--water)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:var(--card);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:800;letter-spacing:.04em;line-height:1.15}
.brand small{display:block;font-weight:500;font-size:.72rem;color:var(--steel);letter-spacing:0}
.mark{width:40px;height:40px;background:var(--hivis);display:grid;place-items:center;font-size:1.3rem;letter-spacing:0}
.bar nav{display:flex;align-items:center;gap:32px}
.bar nav a{text-decoration:none;font-weight:600;font-size:.97rem}
.bar nav a:not(.btn):hover{text-decoration:underline;text-decoration-color:var(--hivis);text-decoration-thickness:3px;text-underline-offset:8px}
.bar nav .btn{padding:10px 22px}
.burger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.burger span{width:24px;height:2px;background:var(--ink)}

/* Hero */
.hero{background:var(--ink);color:#fff;padding:clamp(56px,8vw,112px) 0 clamp(64px,8vw,120px)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,88px);align-items:center}
.hero h1{font-size:clamp(2.6rem,5.8vw,5.1rem);margin-bottom:28px}
.lead{font-size:1.2rem;color:#c3d3dd;max-width:36em}
.actions{display:flex;flex-wrap:wrap;gap:20px 32px;align-items:center;margin-top:38px}
.textlink{color:#fff;font-weight:600;text-underline-offset:7px;text-decoration-color:var(--hivis);text-decoration-thickness:2px}
.section-art{border:1px solid #2e4a5d;background:#0a1c29;padding:14px 14px 10px}
.section-art figcaption{font-size:.82rem;color:#8ea6b5;padding-top:8px}
.draw{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.4s .3s ease forwards}
@keyframes draw{to{stroke-dashoffset:0}}

/* Facts strip */
.facts{background:var(--card);border-bottom:1px solid var(--line)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.facts-grid div{padding:28px 24px 28px 0;border-right:1px solid var(--line);margin-right:24px}
.facts-grid div:last-child{border:0;margin:0}
.facts span{display:block;font-size:.85rem;color:var(--steel)}
.facts strong{font-weight:700;line-height:1.35;display:block}
.facts a{text-decoration:none}
.facts a:hover{text-decoration:underline}

/* Sections */
.section{padding:clamp(72px,9vw,132px) 0}
.section h2{font-size:clamp(2rem,3.9vw,3.4rem)}
.head{display:grid;grid-template-columns:1fr 1fr;gap:24px 64px;align-items:end;margin-bottom:56px}
.head p{color:var(--steel);font-size:1.1rem;max-width:34em}

/* About */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(40px,6vw,96px);align-items:start}
.sheet{margin-top:40px;background:var(--card);border:1px solid var(--line);border-top:5px solid var(--ink)}
.sheet div{padding:16px 22px;border-bottom:1px solid var(--line)}
.sheet div:last-child{border:0}
.sheet dt{font-size:.85rem;color:var(--steel)}
.sheet dd{font-weight:600}
.about-text p{margin-bottom:20px;max-width:40em;color:#2a4152}
.about-text .big{font-size:1.4rem;line-height:1.5;font-weight:600;color:var(--ink)}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:36px}
.duo>div{background:var(--card);padding:26px;border-top:5px solid}
.duo h3{font-size:1.3rem;margin-bottom:8px}
.duo p{margin:0;font-size:.97rem}
.edge-yellow{border-color:var(--hivis)}
.edge-water{border-color:var(--water)}

/* Services */
.services{background:var(--card);border-block:1px solid var(--line)}
.group{font-size:1.3rem;padding-bottom:16px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.eng{display:grid;grid-template-columns:1fr 1fr;gap:0 72px}
.eng article{padding:32px 0;border-bottom:1px solid var(--line);position:relative;transition:padding .25s}
.eng article::before{content:"";position:absolute;left:0;top:32px;bottom:32px;width:0;background:var(--hivis);transition:width .25s}
.eng article:hover{padding-left:20px}
.eng article:hover::before{width:6px}
.eng h4{font-size:1.4rem;margin-bottom:10px}
.eng p{color:var(--steel);max-width:30em}
.retail{margin-top:72px;background:var(--hivis);display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:40px;padding:clamp(28px,4vw,56px)}
.retail h3{font-size:clamp(1.7rem,2.6vw,2.3rem);margin-bottom:12px}
.retail h4{font-size:1.2rem;margin-bottom:8px}
.retail article{border-left:2px solid var(--ink);padding-left:24px}

/* Benefits */
.benefits{background:var(--ink);color:#fff}
.benefits .head p{color:#c3d3dd}
.tiles{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.tiles article{grid-column:span 2;border-top:1px solid #3c5a6e;padding:28px 4px 8px;transition:border-color .25s}
.tiles article:hover{border-top-color:var(--hivis)}
.tiles .t-lg{grid-column:span 3;border-top:5px solid var(--hivis);padding:32px 4px 20px}
.tiles h3{font-size:1.3rem;margin-bottom:10px}
.tiles .t-lg h3{font-size:1.9rem}
.tiles p{color:#c3d3dd;max-width:30em}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(40px,6vw,96px);align-items:start}
.intro{margin:20px 0 36px;color:var(--steel);font-size:1.1rem;max-width:30em}
.details{border-left:5px solid var(--hivis);padding-left:24px;display:grid;gap:18px}
.details dt{font-size:.85rem;color:var(--steel)}
.details dd{font-weight:600}
.details a{text-underline-offset:4px}
.form{background:var(--card);border:1px solid var(--line);padding:clamp(24px,4vw,48px);display:grid;gap:20px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;font:inherit;padding:12px 14px;border:1px solid #9fb1bc;border-radius:2px;background:#fff;color:var(--ink)}
.field textarea{resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--water);outline:2px solid var(--water);outline-offset:0}
.field [aria-invalid="true"]{border-color:#b3261e}
.err{display:block;min-height:1.3em;color:#b3261e;font-size:.85rem;margin-top:4px}
.form .btn{justify-self:start}
#form-status{font-weight:600;color:#1d6b3b}

/* Footer */
.site-footer{background:#08171f;color:#9fb3c0;padding:56px 0 36px;font-size:.95rem}
.foot{display:grid;grid-template-columns:1.4fr 1fr;gap:32px}
.foot strong{color:#fff}
.foot nav{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:flex-end;align-content:start}
.foot a{text-decoration:none}
.foot a:hover{color:var(--hivis)}
.copy{grid-column:1/-1;border-top:1px solid #1e3442;padding-top:24px;font-size:.85rem}

/* Scroll reveal (fade only, one short motion) */
.js .reveal{opacity:0;transform:translateY(10px);transition:opacity .6s,transform .6s}
.js .reveal.in{opacity:1;transform:none}

/* Responsive */
@media(max-width:1020px){
  .hero-grid,.about-grid,.contact-grid,.head{grid-template-columns:1fr}
  .facts-grid{grid-template-columns:1fr 1fr}
  .facts-grid div:nth-child(2){border:0}
  .retail{grid-template-columns:1fr 1fr}
  .retail>div{grid-column:1/-1}
}
@media(max-width:820px){
  .burger{display:flex}
  .bar nav{display:none;position:absolute;top:76px;left:0;right:0;background:var(--card);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;border-bottom:1px solid var(--line)}
  .bar nav.open{display:flex}
  .bar nav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .bar nav .btn{margin-top:16px;text-align:center;border:0}
  .eng,.duo,.row,.foot{grid-template-columns:1fr}
  .tiles{grid-template-columns:1fr}
  .tiles article,.tiles .t-lg{grid-column:auto}
  .foot nav{justify-content:flex-start}
}
@media(max-width:560px){
  body{font-size:16px}
  .facts-grid{grid-template-columns:1fr}
  .facts-grid div{border:0;border-bottom:1px solid var(--line);margin:0;padding:18px 0}
  .retail{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .draw{animation:none;stroke-dashoffset:0}
  .js .reveal{opacity:1;transform:none;transition:none}
}