/* MERSA GROUP — design tokens */
:root{
  --ink:#0B1622;
  --ink-2:#16304D;
  --brand:#16304D;
  --brand-700:#0F2338;
  --accent:#C0703C;           /* decorative only: rules, dots, borders */
  --accent-text:#A05524;      /* text/CTA: >=4.5:1 on white and on --accent-soft */
  --accent-cta:#A85C28;
  --accent-cta-hover:#8F4A1A;
  --accent-soft:#F6EBE2;
  --text:#132231;
  --muted:#5A6B7C;
  --line:#E2E8EE;
  --surface:#FFFFFF;
  --surface-2:#F5F7F9;
  --surface-3:#EDF1F5;
  --radius:14px;
  --radius-lg:22px;
  --maxw:1160px;
  --pad:clamp(20px,5vw,40px);
  --shadow:0 1px 2px rgba(11,22,34,.05),0 8px 28px -12px rgba(11,22,34,.16);
  --shadow-lg:0 2px 4px rgba(11,22,34,.05),0 24px 60px -22px rgba(11,22,34,.28);
  --font:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{
  margin:0;background:var(--surface);color:var(--text);
  font-family:var(--font);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.02em;font-weight:640;overflow-wrap:break-word}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
/* grid/flex children default to min-width:auto, which lets long words push the page wide */
.cards>*,.why-grid>*,.about-grid>*,.contact-grid>*,.footer-grid>*,.stats-grid>*,.contact-list>*,.field-row>*{min-width:0}
.contact-list,.contact-item{min-width:0}
.contact-item h3,.contact-item p,.contact-item a{overflow-wrap:anywhere}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:12px 18px;border-radius:0 0 10px 0;z-index:100}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:22px;min-height:70px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand svg{width:34px;height:34px;border-radius:8px;flex:0 0 auto}
.brand-name{font-weight:700;letter-spacing:.04em;font-size:15px;text-transform:uppercase;color:var(--ink)}
.brand-name span{color:var(--accent-text)}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:26px;min-width:0}
.main-nav a{text-decoration:none;font-size:15px;color:var(--muted);font-weight:500;padding:6px 0;border-bottom:2px solid transparent;transition:color .18s,border-color .18s}
.main-nav a:hover{color:var(--ink);border-color:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

.langs{display:flex;align-items:center;gap:2px;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:3px}
.langs a{text-decoration:none;font-size:12.5px;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:5px 9px;border-radius:7px;transition:all .16s}
.langs a:hover{color:var(--ink);background:#fff}
.langs a[aria-current="true"]{background:var(--brand);color:#fff}
.main-nav .langs-mobile,.main-nav .nav-cta{display:none}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font:inherit;font-size:15px;font-weight:600;text-decoration:none;padding:12px 22px;border-radius:11px;border:1px solid transparent;cursor:pointer;transition:transform .16s,background .18s,border-color .18s,box-shadow .18s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent-cta);color:#fff;box-shadow:0 10px 24px -12px rgba(168,92,40,.9)}
.btn-primary:hover{background:var(--accent-cta-hover)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink-2)}
.btn-sm{padding:9px 16px;font-size:14px}

.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.nav-toggle svg{width:20px;height:20px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--brand-700);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:
   radial-gradient(900px 480px at 82% -10%,rgba(192,112,60,.38),transparent 62%),
   radial-gradient(700px 520px at 8% 106%,rgba(58,110,168,.34),transparent 60%),
   linear-gradient(168deg,#16304D 0%,#0F2338 58%,#0B1A2B 100%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(700px 420px at 50% 30%,#000,transparent 80%)}
.hero-in{padding-block:clamp(64px,9vw,112px) clamp(56px,8vw,96px);max-width:820px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:650;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-soft);margin-bottom:22px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px}
.hero h1{font-size:clamp(38px,6.2vw,66px);letter-spacing:-.035em;font-weight:680;margin-bottom:22px}
.hero-lead{font-size:clamp(17px,2vw,20.5px);color:#C9D6E4;max-width:64ch;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:40px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:550;color:#D6E1EC;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);padding:7px 14px;border-radius:999px}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:#fff;border-top:1px solid rgba(255,255,255,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1)}
.stats-grid li{background:var(--ink);padding:26px 22px}
.stat-v{font-size:32px;font-weight:700;letter-spacing:-.03em;color:#fff;line-height:1.1}
.stat-v em{font-style:normal;color:var(--accent)}
.stat-l{font-size:13.5px;color:#94A6B8;margin-top:4px}

/* ---------- sections ---------- */
section{scroll-margin-top:80px}
.sec{padding-block:clamp(60px,8vw,104px)}
.sec-alt{background:var(--surface-2);border-block:1px solid var(--line)}
.sec-head{max-width:70ch;margin-bottom:clamp(34px,4vw,52px)}
.sec-head .eyebrow{color:var(--accent-text);margin-bottom:16px}
.sec-head h2{font-size:clamp(28px,3.8vw,42px);margin-bottom:16px}
.sec-head p{color:var(--muted);font-size:17.5px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(310px,100%),1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 26px 26px;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFDAE4}
.card-code{font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-text);background:var(--accent-soft);align-self:flex-start;padding:5px 10px;border-radius:7px;margin-bottom:16px}
.card h3{font-size:20.5px;margin-bottom:11px}
.card p{color:var(--muted);font-size:15.8px;margin-bottom:18px}
.card ul{margin-top:auto;border-top:1px solid var(--line);padding-top:16px;display:grid;gap:9px}
.card li{position:relative;padding-left:22px;font-size:14.8px;color:var(--text)}
.card li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;background:var(--accent);opacity:.85}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,56px);align-items:start}
.about-copy p+p{margin-top:17px}
.about-copy p{color:var(--muted);font-size:17px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)}
.panel h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:16px;overflow-wrap:break-word}
.facts{display:grid;gap:0}
.facts div{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:6px 18px;padding:11px 0;border-bottom:1px dashed var(--line)}
.facts div:last-child{border-bottom:0}
.facts dt{font-size:14.5px;color:var(--muted);flex:0 1 auto;min-width:0}
.facts dd{margin:0;font-size:14.8px;font-weight:600;text-align:right;flex:1 1 auto;min-width:0;overflow-wrap:anywhere}
.board{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.board-person{display:flex;align-items:center;gap:13px}
.board-person .avatar{width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;letter-spacing:.02em;flex:0 0 auto}
.board-person b{display:block;font-size:16px;font-weight:650}
.board-person span span{font-size:14px;color:var(--muted)}
.board-note{margin-top:13px;font-size:13.5px;color:var(--muted);line-height:1.55}

/* ---------- why ---------- */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(232px,100%),1fr));gap:20px}
.why-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;position:relative;overflow:hidden}
.why-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.why-num{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent-text);margin-bottom:13px;display:block}
.why-item h3{font-size:18.5px;margin-bottom:9px}
.why-item p{color:var(--muted);font-size:15.5px}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,52px);align-items:start}
.contact-list{display:grid;gap:20px}
.contact-item h3{font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:6px;overflow-wrap:break-word}
.contact-item p,.contact-item a{font-size:16.5px;font-weight:550;text-decoration:none;color:var(--text);word-break:break-word}
.contact-item a:hover{color:var(--accent-text)}
.contact-item .small{font-size:13.5px;font-weight:450;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;word-break:break-all}

form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(22px,3vw,32px);box-shadow:var(--shadow)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:620;color:var(--text)}
.field label .req{color:var(--accent-text)}
.field input,.field select,.field textarea{font:inherit;font-size:15.5px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);color:var(--text);transition:border-color .16s,background .16s}
.field input:focus,.field select:focus,.field textarea:focus{background:#fff;border-color:var(--ink-2);outline:none;box-shadow:0 0 0 3px rgba(22,48,77,.1)}
.field textarea{min-height:132px;resize:vertical}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235A6B7C' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:18px;padding-right:40px}
.consent{display:flex;gap:11px;align-items:flex-start;margin-bottom:18px}
.consent input{width:19px;height:19px;margin-top:2px;flex:0 0 auto;accent-color:var(--accent-cta)}
.consent label{font-size:14px;color:var(--muted);line-height:1.5}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.form-note{font-size:13px;color:var(--muted);flex:1 1 220px}
.form-error{display:none;background:var(--accent-soft);border:1px solid #E8CDB8;color:#8A4A1E;font-size:14px;padding:11px 14px;border-radius:10px;margin-bottom:16px}
.form-error[data-show="1"]{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#9FB0C1;padding-block:clamp(44px,6vw,68px) 26px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:clamp(26px,4vw,52px);padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.11)}
.site-footer h3{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-weight:700;margin-bottom:15px}
.site-footer a{text-decoration:none;transition:color .16s}
.site-footer a:hover{color:#fff}
.footer-legal p{margin-bottom:5px;line-height:1.6}
.footer-legal .note{margin-top:13px;font-size:12.5px;color:#71849A;line-height:1.55}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand svg{width:32px;height:32px;border-radius:8px}
.footer-brand b{color:#fff;font-size:14.5px;letter-spacing:.05em;text-transform:uppercase}
.footer-nav li,.footer-contact li{margin-bottom:9px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;padding-top:22px;font-size:13px;color:#71849A}
.footer-bottom nav{display:flex;gap:18px}

@media (max-width:1180px){
  .header-actions .btn-sm{display:none}
}
@media (max-width:960px){
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  body{font-size:16.5px}
  .langs-desktop{display:none}
  .main-nav .langs-mobile{display:flex;margin-top:16px;align-self:flex-start}
  .header-actions .btn-sm{display:none}
  .main-nav .nav-cta{display:inline-flex;margin-top:18px;justify-content:center;color:#fff;border-bottom:0;padding:14px 22px;font-size:16px}
  .main-nav .nav-cta:hover{color:#fff;border-bottom:0}
  .nav-toggle{display:inline-flex}
  .main-nav{position:fixed;inset:70px 0 auto 0;overflow-y:auto;max-height:calc(100dvh - 70px);flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--pad) 18px;box-shadow:var(--shadow-lg);display:none}
  .main-nav[data-open="1"]{display:flex}
  .main-nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16.5px}
  .main-nav a:hover{border-color:var(--line)}
  .header-actions{margin-left:auto}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:420px){
  .stats-grid{grid-template-columns:1fr}
  .brand-name{font-size:13.5px}
  .langs a{padding:5px 8px;font-size:12px}
}

/* ---------- legal page ---------- */
.legal{padding-block:clamp(48px,7vw,88px);max-width:78ch}
.legal h1{font-size:clamp(30px,4.5vw,44px);margin-bottom:12px}
.legal .updated{color:var(--muted);font-size:14.5px;margin-bottom:36px}
.legal section{margin-bottom:30px}
.legal h2{font-size:20px;margin-bottom:12px}
.legal p{color:var(--muted);margin-bottom:12px}
.legal .back{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-weight:600;text-decoration:none;color:var(--ink)}
.legal .back:hover{color:var(--accent-text)}