/* Sober, elegant palette */
:root{
  --bg:#f6f7f8;
  --card:#ffffff;
  --ink:#1f1f1f;
  --muted:#5a5f66;
  --line:#e3e5e8;
  --accent:#2f4858; /* deep muted blue to complement gray logo */
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
}

.container{max-width:1100px;margin:0 auto;padding:0 20px}
.site-header{
  background:var(--card);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:10;
}
.header-inner{display:flex;align-items:center;gap:16px;padding:12px 0}
.logo{height:56px;width:auto;border-radius:4px;object-fit:cover}
.brand h1{font-size:1.25rem;margin:0}
.tagline{margin:2px 0 0;color:var(--muted);font-size:.95rem}
.header-actions{margin-left:auto}
#langToggle{
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink);
  padding:8px 12px;border-radius:8px;cursor:pointer;
}
#langToggle:hover{background:#f0f2f4}

.site-nav{background:var(--card);border-bottom:1px solid var(--line)}
.site-nav .container{display:flex;gap:18px;overflow:auto}
.site-nav a{
  padding:12px 0;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent
}
.site-nav a:hover{color:var(--ink);border-color:var(--accent)}

.section{padding:40px 0}
.section h2{margin-top:0;font-size:1.6rem}

.accordion{border:1px solid var(--line);border-radius:10px;background:var(--card)}
.accordion + .accordion{margin-top:16px}
.accordion-trigger{
  width:100%;text-align:left;padding:14px 16px;border:0;background:transparent;
  display:flex;align-items:center;gap:10px;font-size:1rem;cursor:pointer;border-bottom:1px solid var(--line)
}
.accordion .accordion-trigger:last-of-type{border-bottom:1px solid var(--line)}
.accordion-panel{display:none;padding:14px 16px;color:var(--ink);background:var(--card)}
.accordion-trigger[aria-expanded="true"] .acc-icon{transform:rotate(90deg)}
.acc-icon{transition:transform .2s ease}

.cards{display:grid;grid-template-columns:repeat( auto-fit, minmax(260px,1fr) );gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.card h3{margin-top:0;color:var(--accent)}

.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.site-footer{border-top:1px solid var(--line);padding:24px 0;background:var(--card);color:var(--muted);margin-top:40px}