:root {
  --ink: #1c2430;
  --ink-soft: #4a5566;
  --paper: #f7f5f0;
  --paper-2: #efece4;
  --line: #d9d4c7;
  --accent: #1f4e5f;
  --accent-soft: #e3ecee;
  --max: 1080px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
img { max-width: 100%; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 245, 240, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px; gap: 16px;
}
.brand {
  font-family: var(--serif); font-size: 22px; font-weight: 600;
  color: var(--ink); text-decoration: none; letter-spacing: 0.02em;
}
.brand small {
  display: block; font-family: var(--sans); font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft);
  margin-top: -2px;
}
nav.main { display: flex; align-items: center; gap: 24px; }
nav.main a {
  color: var(--ink-soft); text-decoration: none; font-size: 15px;
}
nav.main a:hover { color: var(--ink); }
nav.main a.lang {
  border: 1px solid var(--line); border-radius: 4px; padding: 3px 9px;
  font-size: 13px; font-weight: 600; color: var(--ink);
}

/* Hero */
.hero { padding: 96px 0 80px; border-bottom: 1px solid var(--line); }
.eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(34px, 5vw, 54px); line-height: 1.12;
  margin: 0 0 24px; max-width: 21ch;
}
.hero p.lead { font-size: 19px; color: var(--ink-soft); max-width: 58ch; margin: 0 0 36px; }
.actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 4px;
  font-size: 15px; font-weight: 600; text-decoration: none;
  border: 1px solid var(--accent);
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: #173d4a; }
.btn.ghost { color: var(--accent); background: transparent; }
.btn.ghost:hover { background: var(--accent-soft); }

/* Sections */
section { padding: 80px 0; border-bottom: 1px solid var(--line); }
section.alt { background: var(--paper-2); }
h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(28px, 3.4vw, 38px); line-height: 1.2; margin: 0 0 16px;
}
.section-intro { color: var(--ink-soft); max-width: 62ch; margin: 0 0 44px; }

/* Services grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { background: var(--paper); padding: 30px 28px; }
section.alt .card { background: var(--paper-2); }
.card .num { font-family: var(--serif); color: var(--accent); font-size: 15px; margin-bottom: 10px; }
.card h3 { font-size: 18px; font-weight: 600; margin: 0 0 10px; line-height: 1.35; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15.5px; }

/* Approach */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.points { list-style: none; margin: 0; padding: 0; }
.points li { padding: 18px 0; border-top: 1px solid var(--line); }
.points li:last-child { border-bottom: 1px solid var(--line); }
.points strong { display: block; font-size: 16px; margin-bottom: 4px; }
.points span { color: var(--ink-soft); font-size: 15.5px; }

/* Experience */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 0 0 48px; }
.stat { border-top: 2px solid var(--accent); padding-top: 14px; }
.stat b { display: block; font-family: var(--serif); font-size: 30px; font-weight: 500; line-height: 1.2; }
.stat span { color: var(--ink-soft); font-size: 15px; }
.milestones { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 20px 48px; }
.milestones li { padding-left: 22px; position: relative; color: var(--ink); }
.milestones li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 10px; height: 2px; background: var(--accent);
}

/* Sectors */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.tags span {
  border: 1px solid var(--line); background: var(--paper);
  padding: 7px 14px; border-radius: 999px; font-size: 14.5px; color: var(--ink);
}

/* Contact */
.contact-box {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px;
  background: var(--ink); color: #eef0f2; padding: 56px; border-radius: 6px;
}
.contact-box h2 { color: #fff; }
.contact-box p { color: #c3cad3; margin: 0; }
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { padding: 12px 0; border-bottom: 1px solid #3a4452; }
.contact-list li:first-child { padding-top: 0; }
.contact-list small { display: block; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: #8e99a8; }
.contact-list a { color: #fff; text-decoration: none; font-size: 17px; }
.contact-list a:hover { text-decoration: underline; }
section.contact { border-bottom: 0; }

footer.site { padding: 32px 0 48px; color: var(--ink-soft); font-size: 14px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .contact-box { grid-template-columns: 1fr; padding: 40px 28px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  nav.main a:not(.lang) { display: none; }
  .hero { padding: 64px 0 56px; }
  section { padding: 56px 0; }
  .grid, .stats, .milestones { grid-template-columns: 1fr; }
}