.app-shell {
  min-height: 100vh;
}

.app-header {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 32px;
  min-height: 88px;
  padding: 18px max(32px, calc((100vw - 1440px) / 2));
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.brand-lockup {
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
  width: fit-content;
  color: var(--ink);
  text-decoration: none;
}

.brand-wordmark {
  color: var(--at-blue);
  font-size: 35px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-product {
  padding-left: 14px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--at-blue);
  background: #edf0ff;
}

.user-context {
  justify-self: end;
  text-align: right;
}

.user-context__label,
.user-context__name {
  display: block;
}

.user-context__label {
  color: var(--muted);
  font-size: 12px;
}

.user-context__name {
  font-size: 14px;
  font-weight: 700;
}

.app-main {
  width: min(1440px, calc(100% - 64px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

@media (max-width: 760px) {
  .app-header {
    grid-template-columns: 1fr auto;
    gap: 16px;
    min-height: auto;
    padding: 18px 20px;
  }

  .brand-product,
  .user-context {
    display: none;
  }

  .brand-wordmark {
    font-size: 29px;
  }

  .primary-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: space-between;
    width: 100%;
  }

  .nav-link {
    flex: 1;
    padding: 9px 10px;
    font-size: 13px;
    text-align: center;
  }

  .app-main {
    width: min(calc(100% - 32px), 680px);
    padding: 32px 0 48px;
  }
}