.button,
.auth-btn,
.btn-primary {
  border: 0;
  cursor: pointer;
  font-weight: 700;
  transition: background-color .2s ease, transform .2s ease, filter .2s ease;
}

.auth-btn,
.btn-primary {
  background: var(--player-button-primary-bg);
  color: var(--player-button-primary-text);
}

.topbar .auth-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar .auth-btn {
  min-height: 34px;
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.45);
  white-space: nowrap;
}

.auth-btn:hover,
.btn-primary:hover {
  transform: translateY(-1px);
}

.topbar .auth-btn:hover {
  filter: brightness(1.05);
}

.player-back-button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 12px;
  border: var(--player-back-button-border);
  border-radius: 10px;
  background: var(--player-back-button-bg);
  color: var(--player-back-button-text);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
}

.player-back-button:hover {
  border: var(--player-back-button-hover-border);
  background: var(--player-back-button-hover-bg);
  color: var(--player-back-button-hover-text);
  transform: translateY(-1px);
}

@media (max-width: 480px) {
  .topbar .auth-buttons {
    gap: 8px;
  }

  .topbar .auth-btn {
    min-height: 30px;
    padding: 7px 10px;
    border-radius: 8px;
    font-size: 11px;
  }
}