.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.brand-row,
.header-actions,
.user-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo {
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -.04em;
}

.header-btn,
.logout-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.052);
  padding: 8px 12px;
  cursor: pointer;
  font-size: 13px;
}

.header-btn:hover,
.logout-btn:hover {
  border-color: var(--line-strong);
  background: rgba(255,255,255,.08);
}

.nickname {
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 760px) {
  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    flex-wrap: wrap;
  }
}