/* ── 네비게이션 바 (홈 + 로그인) ── */
.dt-nav-bar {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 9990;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.dt-nav-bar .dt-home-btn,
.dt-nav-bar .dt-auth-btn {
  position: static;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 100px;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.dt-nav-bar .dt-home-btn:hover,
.dt-nav-bar .dt-auth-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* 라이트 테마 */
[data-theme="light"] .dt-nav-bar,
body.light-theme .dt-nav-bar {
  border-color: rgba(74, 69, 66, 0.1);
  background: rgba(255, 255, 255, 0.7);
}

[data-theme="light"] .dt-nav-bar .dt-home-btn,
[data-theme="light"] .dt-nav-bar .dt-auth-btn,
body.light-theme .dt-nav-bar .dt-home-btn,
body.light-theme .dt-nav-bar .dt-auth-btn {
  color: #4a4542;
}

[data-theme="light"] .dt-nav-bar .dt-home-btn:hover,
[data-theme="light"] .dt-nav-bar .dt-auth-btn:hover,
body.light-theme .dt-nav-bar .dt-home-btn:hover,
body.light-theme .dt-nav-bar .dt-auth-btn:hover {
  background: rgba(74, 69, 66, 0.08);
}

/* 구분선 */
.dt-nav-sep {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

[data-theme="light"] .dt-nav-sep,
body.light-theme .dt-nav-sep {
  background: rgba(74, 69, 66, 0.1);
}

.dt-auth-name {
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 허브 페이지에서 홈 버튼 숨기기 */
.dt-nav-bar.dt-hub-page .dt-home-btn,
.dt-nav-bar.dt-hub-page .dt-nav-sep {
  display: none;
}

@media (max-width: 640px) {
  .dt-auth-name {
    display: none;
  }
  .dt-nav-bar .dt-auth-btn {
    padding: 6px 10px;
  }
}