* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #111;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
}

#app {
  padding: 24px 16px 48px;
}

.container {
  max-width: 960px;
  margin: 0 auto;
}

.profile-header {
  text-align: center;
  margin-bottom: 32px;
}

.profile-header h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 32px;
  font-weight: 400;
  margin: 0 0 8px;
}

.profile-header img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.profile-header a {
  color: inherit;
  text-decoration: underline;
}

.profile-header hr {
  border: none;
  border-top: 1px solid #dcdcdc;
  margin: 20px auto 0;
  max-width: 200px;
}

.content-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
}

.column {
  flex: 1 1 280px;
  min-width: 0;
}

h3 {
  font-size: 20px;
  font-weight: 400;
  margin: 24px 0 8px;
}

hr.section-divider {
  border: none;
  border-top: 1px solid #dcdcdc;
  margin: 0 0 16px;
}

p {
  margin: 0 0 8px;
}

b {
  font-weight: 700;
}

i {
  color: #555;
}

ul {
  margin: 0 0 16px 20px;
  padding: 0;
}

li {
  margin-bottom: 8px;
}

a {
  color: #0b5ed7;
}

a:hover,
a:focus {
  color: #073c85;
}

@media (max-width: 768px) {
  .profile-header h1 {
    font-size: 26px;
    gap: 12px;
  }

  .content-columns {
    gap: 24px;
  }
}