:root {
  --bg: #fbfaf8;
  --card: #ffffff;
  --text: #141414;
  --muted: rgba(20, 20, 20, 0.62);
  --border: rgba(20, 20, 20, 0.12);
  --hover: rgba(20, 20, 20, 0.05);
  --accent: #141414;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(251, 250, 248, 0.86);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  gap: 18px;
}

.nav__link {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.02em;
  padding: 8px 10px;
  border-radius: 10px;
  transition: background 160ms ease, color 160ms ease;
}

.nav__link:hover {
  color: var(--text);
  background: var(--hover);
}

.main {
  max-width: 960px;
  margin: 0 auto;
  padding: 44px 20px 64px;
}

.hero {
  display: grid;
  place-items: center;
  gap: 16px;
  padding: 28px 18px 24px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--card);
}

.avatar {
  width: 132px;
  height: 132px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid rgba(20, 20, 20, 0.14);
  box-shadow: 0 18px 44px rgba(20, 20, 20, 0.14);
}

.name {
  margin: 0;
  font-size: 34px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.section {
  margin-top: 28px;
  padding: 22px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
}

.section__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
}

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 20px;
  color: var(--muted);
}

.footer__text {
  display: block;
  max-width: 960px;
  margin: 0 auto;
  font-size: 13px;
}