:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #15202b;
  --muted: #5e6b78;
  --line: #dfe5eb;
  --accent: #1367d1;
  --accent-dark: #0c4d9f;
  --dark: #111b27;
  --radius: 18px;
  --shadow: 0 18px 45px rgba(22, 37, 55, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}
a { color: inherit; }
.container { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 247, 250, 0.92);
  border-bottom: 1px solid rgba(223, 229, 235, 0.85);
  backdrop-filter: blur(14px);
}
.nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; }
.brand {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
  text-decoration: none;
}
.nav-links { display: flex; gap: 26px; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 600; font-size: .94rem; }
.nav-links a:hover { color: var(--accent); }
.menu-button { display: none; background: none; border: 0; font-size: 1.5rem; }

.hero { padding: 100px 0 80px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 56px; align-items: center; }
.eyebrow, .section-label {
  text-transform: uppercase; letter-spacing: .14em; font-size: .78rem;
  font-weight: 800; color: var(--accent); margin-bottom: 14px;
}
h1, h2, h3 { line-height: 1.15; margin-top: 0; }
h1 { font-size: clamp(3rem, 7vw, 5.5rem); margin-bottom: 24px; letter-spacing: -.05em; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -.035em; }
h3 { font-size: 1.25rem; }
.hero-copy { max-width: 760px; font-size: 1.24rem; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px; border-radius: 12px;
  text-decoration: none; font-weight: 800;
}
.primary { background: var(--accent); color: #fff; }
.primary:hover { background: var(--accent-dark); }
.secondary { border: 1px solid var(--line); background: var(--surface); }
.quick-facts { display: flex; flex-wrap: wrap; gap: 10px; }
.quick-facts span, .tag-list span {
  padding: 8px 12px; border: 1px solid var(--line);
  background: var(--surface); border-radius: 999px; font-size: .86rem;
}
.profile-card {
  padding: 36px; border-radius: 28px; color: #fff;
  background: linear-gradient(145deg, #162537, #0b4a91);
  box-shadow: var(--shadow);
}
.initials {
  width: 76px; height: 76px; display: grid; place-items: center;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2);
  border-radius: 22px; font-size: 1.4rem; font-weight: 900; margin-bottom: 36px;
}
.profile-card p { color: rgba(255,255,255,.78); }

.section { padding: 90px 0; }
.muted { background: #eef2f6; }
.two-column { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; }
.body-copy { font-size: 1.08rem; color: var(--muted); }
.section-intro { max-width: 820px; color: var(--muted); margin-bottom: 40px; }
.cards, .projects-grid { display: grid; gap: 20px; }
.expertise-grid { grid-template-columns: repeat(3, 1fr); margin-top: 40px; }
.card, .project-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px; box-shadow: 0 8px 25px rgba(22,37,55,.04);
}
.card p, .project-card p, .project-card li { color: var(--muted); }
.projects-grid { grid-template-columns: repeat(2, 1fr); margin-top: 40px; }
.project-card { position: relative; padding-top: 64px; }
.project-number {
  position: absolute; top: 24px; right: 24px; font-size: .8rem;
  color: var(--accent); font-weight: 900; letter-spacing: .1em;
}
.project-card ul { padding-left: 20px; margin-bottom: 0; }
.featured { border-color: rgba(19,103,209,.35); box-shadow: var(--shadow); }

.dark { background: var(--dark); color: #fff; }
.dark p { color: rgba(255,255,255,.72); }
.leadership-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.timeline { border-left: 1px solid rgba(255,255,255,.2); padding-left: 28px; }
.timeline-item { position: relative; margin-bottom: 30px; }
.timeline-item::before {
  content: ""; position: absolute; left: -35px; top: 7px;
  width: 12px; height: 12px; border-radius: 50%; background: #58a5ff;
}
.timeline-item strong { display: block; margin-bottom: 5px; }
.timeline-item span { color: rgba(255,255,255,.65); }

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.contact-section { padding-top: 40px; }
.contact-card {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 28px; padding: 48px; box-shadow: var(--shadow);
}
.contact-links { display: flex; flex-direction: column; justify-content: center; gap: 13px; }
.contact-links a { color: var(--accent); font-weight: 750; text-decoration: none; }
footer { padding: 28px 0 40px; }
.footer-content { display: flex; justify-content: space-between; color: var(--muted); font-size: .9rem; }

@media (max-width: 860px) {
  .hero-grid, .two-column, .leadership-grid, .contact-card { grid-template-columns: 1fr; }
  .expertise-grid, .projects-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  .menu-button { display: block; }
  .nav-links {
    display: none; position: absolute; left: 20px; right: 20px; top: 62px;
    flex-direction: column; gap: 4px; padding: 14px;
    background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px; }
}

@media (max-width: 520px) {
  .container { width: min(100% - 24px, 1120px); }
  h1 { font-size: 3rem; }
  .section { padding: 70px 0; }
  .profile-card, .contact-card { padding: 28px; }
  .footer-content { flex-direction: column; gap: 6px; }
}