:root {
  --azure-blue: #0078d4;
  --azure-dark: #005a9e;
  --bg-light: #f3f2f1;
  --text-main: #323130;
  --text-muted: #605e5c;
  --card-bg: #ffffff;
  --border: #e1dfdd;
}

/* ---------- Reset / Base ---------- */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-main);
  background: var(--bg-light);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

/* ---------- Topbar / Nav ---------- */
.topbar {
  background: white;
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 600;
  color: var(--azure-blue);
}

/* Nav layout */
.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  margin-left: 16px;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--azure-blue);
}

/* Icon nav */
.nav-icons {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-icons a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.nav-icons a:hover {
  color: var(--azure-blue);
}

.nav-icons svg {
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease, color 0.2s ease;
}

.nav-icons a:hover svg {
  transform: translateY(-2px);
}

/* ---------- Hero / Profile ---------- */
.hero {
  padding-top: 48px;
}

.profile {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 32px;
  background: var(--card-bg);
  border-radius: 8px;
  padding: 32px;
  border: 1px solid var(--border);
  align-items: center;
}

/* Profile photo */
.photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
}

/* Intro text */
.intro h1 {
  margin: 0 0 8px 0;
}

.intro h2 {
  margin: 0 0 8px 0;
  font-weight: 500;
  color: var(--text-muted);
}

.company {
  color: var(--azure-blue);
  font-weight: 500;
  margin-bottom: 16px;
}

.summary {
  line-height: 1.6;
}

/* ---------- Counter ---------- */
.counter {
  margin-top: 24px;
  padding: 12px 16px;
  background: var(--bg-light);
  border-radius: 6px;
  display: inline-block;
  font-weight: 500;
}

/* ---------- Blog ---------- */
.blog article {
  background: white;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-top: 24px;
}

.blog .meta {
  color: var(--text-muted);
  font-size: 0.9em;
}

/* ---------- Footer ---------- */
footer {
  margin-top: 64px;
  padding: 24px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9em;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .profile {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .photo {
    margin: 0 auto;
  }

  .nav {
    gap: 16px;
  }

  .nav-links a {
    margin-left: 8px;
  }
}