/* ============================================================
   DIGITAL BUSINESS TRADE LTD — Style A1 "Refined Gold"
   Shared stylesheet for all pages
   ============================================================ */

:root{
  --navy:#0F2E4D;
  --navy-700:#163e66;
  --navy-900:#0a2138;
  --ink:#16202b;
  --muted:#5d6b7a;
  --line:#e4e8ec;
  --bg:#ffffff;
  --bg-alt:#f6f8fa;
  --accent:#c8862b;
  --accent-soft:#faf3e6;
  --accent-dark:#a86d1f;
  --radius:12px;
  --maxw:1200px;
  --header-h:84px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  font-family:'Libre Franklin',-apple-system,BlinkMacSystemFont,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
.serif{font-family:'Fraunces',Georgia,serif}

/* ---------- Skip link (a11y) ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:12px 20px;z-index:100;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- Header / Nav ---------- */
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none}
.brand img{height:42px;width:auto}
.brand .brand-text{font-family:'Fraunces',serif;font-weight:600;font-size:17px;color:var(--navy);letter-spacing:.2px;line-height:1.1}
.brand .brand-text small{display:block;font-family:'Libre Franklin',sans-serif;font-weight:500;font-size:10.5px;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin-top:2px}
.navlinks{display:flex;gap:36px;list-style:none;align-items:center}
.navlinks a{text-decoration:none;color:var(--muted);font-size:14.5px;font-weight:500;transition:color .2s;position:relative;padding:4px 0}
.navlinks a:hover,.navlinks a[aria-current="page"]{color:var(--navy)}
.navlinks a[aria-current="page"]::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--accent)}
.nav-cta{display:inline-flex;align-items:center;padding:11px 22px!important;background:var(--navy);color:#fff!important;border-radius:8px;font-size:14px;font-weight:600;transition:all .2s;white-space:nowrap;flex-shrink:0;line-height:1}
.nav-cta:hover{background:var(--navy-700);transform:translateY(-1px);color:#fff!important}
.navlinks .nav-cta[aria-current="page"]::after{display:none}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--navy)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 30px;border-radius:8px;font-weight:600;font-size:15px;text-decoration:none;transition:all .2s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-700);transform:translateY(-1px);box-shadow:0 10px 26px -12px rgba(15,46,77,.5)}
.btn-ghost{background:#fff;color:var(--navy);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--navy)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}

/* ---------- Generic section ---------- */
section{padding:84px 0}
.alt{background:var(--bg-alt)}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:2.5px;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.sec-head{text-align:center;max-width:720px;margin:0 auto 54px}
.sec-head h2{font-family:'Fraunces',serif;font-weight:500;font-size:38px;color:var(--navy);letter-spacing:-.5px;line-height:1.12}
.sec-head p{margin-top:16px;font-size:17px;color:var(--muted)}
.sec-head.left{text-align:left;margin-left:0}

/* ---------- Hero ---------- */
.hero{padding:96px 0 84px;text-align:center;background:radial-gradient(900px 380px at 50% -12%,#eef3f8 0%,transparent 72%)}
.hero h1{font-family:'Fraunces',serif;font-weight:500;font-size:56px;line-height:1.08;letter-spacing:-1px;color:var(--navy);max-width:920px;margin:0 auto 24px}
.hero p.lead{font-size:19px;color:var(--muted);max-width:660px;margin:0 auto 38px}
.hero .ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* page hero (inner pages) */
.page-hero{padding:80px 0 64px;background:radial-gradient(800px 340px at 50% -20%,#eef3f8 0%,transparent 70%);text-align:center;border-bottom:1px solid var(--line)}
.page-hero h1{font-family:'Fraunces',serif;font-weight:500;font-size:46px;letter-spacing:-.8px;color:var(--navy);max-width:840px;margin:0 auto 18px;line-height:1.1}
.page-hero p{font-size:18px;color:var(--muted);max-width:680px;margin:0 auto}

/* ---------- Cards grid ---------- */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:all .25s}
.card:hover{box-shadow:0 18px 40px -22px rgba(15,46,77,.32);transform:translateY(-4px);border-color:#d4dae0}
.card .ico{width:48px;height:48px;border-radius:10px;background:var(--accent-soft);display:grid;place-items:center;margin-bottom:20px;color:var(--accent)}
.card h3{font-size:17.5px;color:var(--navy);margin-bottom:10px;font-weight:600}
.card p{font-size:14.5px;color:var(--muted);line-height:1.58}

/* ---------- Industries ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:1000px;margin:0 auto}
.ind{display:flex;align-items:center;gap:15px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:10px;font-weight:500;font-size:15px;color:var(--ink);transition:all .2s}
.ind svg{flex-shrink:0;color:var(--accent)}
.ind:hover{border-color:var(--navy);color:var(--navy);transform:translateY(-2px)}

/* ---------- Value rows / why ---------- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.value{padding:0}
.value .num{font-family:'Fraunces',serif;font-size:15px;color:var(--accent);font-weight:600;margin-bottom:14px;display:block}
.value h3{font-size:19px;color:var(--navy);margin-bottom:12px;font-weight:600}
.value p{font-size:15px;color:var(--muted)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:30px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step .n{width:38px;height:38px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:18px;font-family:'Fraunces',serif}
.step h3{font-size:16.5px;color:var(--navy);margin-bottom:9px;font-weight:600}
.step p{font-size:14px;color:var(--muted)}

/* ---------- Teaser band ---------- */
.teaser{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-900) 100%);color:#fff;border-radius:18px;padding:56px 54px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.teaser h2{font-family:'Fraunces',serif;font-weight:500;font-size:30px;color:#fff;margin-bottom:10px;letter-spacing:-.3px}
.teaser p{color:#bcd0e2;font-size:16px;max-width:520px}
.teaser .accent-line{color:var(--accent);font-style:italic}

/* ---------- CTA band ---------- */
.cta-band{text-align:center;background:var(--bg-alt)}
.cta-band h2{font-family:'Fraunces',serif;font-weight:500;font-size:36px;color:var(--navy);margin-bottom:14px;letter-spacing:-.4px}
.cta-band p{font-size:17px;color:var(--muted);margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto}

/* ---------- Two-col content ---------- */
.split{display:grid;grid-template-columns:repeat(2,1fr);gap:48px;align-items:start}
.prose h3{font-family:'Fraunces',serif;font-weight:600;font-size:22px;color:var(--navy);margin-bottom:14px;letter-spacing:-.2px}
.prose p{font-size:16px;color:var(--muted);margin-bottom:16px}
.prose p:last-child{margin-bottom:0}

/* ---------- Category list (products) ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.cat{display:flex;gap:20px;padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:all .25s}
.cat:hover{box-shadow:0 16px 36px -22px rgba(15,46,77,.3);border-color:#d4dae0}
.cat .ico{flex-shrink:0;width:50px;height:50px;border-radius:11px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent)}
.cat h3{font-size:17px;color:var(--navy);margin-bottom:8px;font-weight:600}
.cat p{font-size:14px;color:var(--muted);line-height:1.55}

/* ---------- Spec / parameters box ---------- */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec{background:#fff;padding:28px 18px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:flex-start}
.spec .v{font-family:'Fraunces',serif;font-size:21px;font-weight:600;color:var(--navy);margin-bottom:6px;white-space:nowrap;line-height:1.15;min-height:1.15em;display:flex;align-items:center;justify-content:center}
.spec .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.8px;line-height:1.35}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.3fr .9fr;gap:48px;align-items:start}
.form-field{margin-bottom:20px}
.form-field label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:7px}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:8px;font-family:inherit;font-size:16px;color:var(--ink);background:#fff;transition:border-color .2s}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--accent)}
.form-field textarea{resize:vertical;min-height:130px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.req{color:var(--accent)}
.form-note{font-size:13px;color:var(--muted);margin-top:8px}
.contact-info{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.contact-info h3{font-family:'Fraunces',serif;font-weight:600;font-size:20px;color:var(--navy);margin-bottom:22px}
.cinfo-item{display:flex;gap:14px;margin-bottom:20px;align-items:flex-start}
.cinfo-item:last-child{margin-bottom:0}
.cinfo-item .ico{flex-shrink:0;width:40px;height:40px;border-radius:9px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--accent)}
.cinfo-item .label{font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:3px}
.cinfo-item .val{font-size:15px;color:var(--navy);font-weight:500;word-break:break-word}
.cinfo-item a{text-decoration:none}
.cinfo-item a:hover{color:var(--accent)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#cdd9e6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:48px;padding-bottom:48px}
.footer-brand img{height:54px;width:auto;margin-bottom:18px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:14.5px;color:#9fb3c8;max-width:320px}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:1.5px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{text-decoration:none;color:#9fb3c8;font-size:14.5px;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-contact div{font-size:14.5px;color:#9fb3c8;margin-bottom:11px;line-height:1.5}
.footer-contact a{color:#9fb3c8;text-decoration:none}
.footer-contact a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:24px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:#7e93a8}

/* ---------- Reveal on scroll (progressive enhancement) ----------
   Only hidden once JS adds .js-reveal to <html>. Without JS,
   or if the observer never fires, content stays fully visible. */
.js-reveal .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js-reveal .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .js-reveal .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- Responsive ---------- */

/* Tablet / small laptop */
@media(max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:1fr;gap:34px}
  .split,.contact-grid{grid-template-columns:1fr;gap:34px}
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .specs{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:42px}
  .page-hero h1{font-size:36px}
  .teaser{padding:40px 32px}
}

/* Phone */
@media(max-width:640px){
  :root{--header-h:64px}
  .wrap{padding:0 20px}

  /* --- Mobile nav --- */
  .brand img{height:36px}
  .brand .brand-text{font-size:15px}
  .navlinks{position:fixed;inset:var(--header-h) 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(0,0,0,.2);display:none;max-height:calc(100vh - var(--header-h));overflow-y:auto}
  .navlinks.open{display:flex}
  .navlinks li{width:100%}
  .navlinks a{display:flex;align-items:center;width:100%;min-height:48px;padding:12px 0;border-bottom:1px solid var(--line);font-size:16px}
  .navlinks a[aria-current="page"]::after{display:none}
  .navlinks .nav-cta{margin-top:14px;justify-content:center;width:100%;min-height:50px;border-bottom:none;font-size:15px}
  .burger{display:grid;place-items:center;width:44px;height:44px;margin-right:-8px}

  /* --- Layout stacks --- */
  .grid-4,.grid-3,.grid-2,.specs,.ind-grid,.steps,.form-row{grid-template-columns:1fr}
  .grid{gap:16px}
  .ind-grid{gap:12px}

  /* --- Spacing --- */
  section{padding:52px 0}
  .hero{padding:48px 0 44px}
  .page-hero{padding:52px 0 40px}
  .sec-head{margin-bottom:36px}

  /* --- Type scale --- */
  .hero h1{font-size:30px;line-height:1.14;margin-bottom:18px}
  .hero p.lead{font-size:16px;margin-bottom:28px}
  .page-hero h1{font-size:29px}
  .page-hero p{font-size:16px}
  .sec-head h2{font-size:26px}
  .sec-head p{font-size:15px}
  .eyebrow{font-size:11.5px;letter-spacing:2px}

  /* --- Buttons: full-width, stacked, tappable --- */
  .hero .ctas,.cta-band .ctas{flex-direction:column;width:100%;gap:12px}
  .hero .ctas .btn,.cta-band .btn{width:100%;justify-content:center}
  .btn{min-height:50px;padding:14px 24px}

  /* --- Cards / sections --- */
  .card{padding:26px 22px}
  .cat{padding:22px;gap:16px}
  .value .num{margin-bottom:10px}
  .step{padding:24px 22px}

  /* --- Teaser band --- */
  .teaser{flex-direction:column;align-items:stretch;text-align:left;padding:32px 26px;gap:22px}
  .teaser h2{font-size:24px}
  .teaser .btn{width:100%;justify-content:center}

  /* --- CTA band --- */
  .cta-band h2{font-size:27px}
  .cta-band p{font-size:15px}

  /* --- Specs box: 2-up looks better than 1-up here --- */
  .specs{grid-template-columns:1fr 1fr}
  .spec{padding:22px 14px}
  .spec .v{font-size:19px}

  /* --- Contact card --- */
  .contact-info{padding:26px}

  /* --- Footer --- */
  .site-footer{padding:48px 0 0}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

/* Very small phones */
@media(max-width:380px){
  .hero h1{font-size:27px}
  .sec-head h2{font-size:24px}
  .specs{grid-template-columns:1fr}
}

/* ---------- Company details block (About) ---------- */
.company-details{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.company-details>div:last-child{grid-column:1/-1}
@media(max-width:640px){.company-details{grid-template-columns:1fr}}