/* ============================================================
   SeaScribe — Topbar
   ============================================================ */

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--glass-border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  position: sticky;
  top: 0;
  z-index: 1000;
  flex-wrap: wrap;
  transition: background-color var(--dur-slow), border-color var(--dur-slow);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  cursor: pointer;
  user-select: none;
  transition: opacity var(--dur-fast);
}
.topbar-brand:hover { opacity: 0.7; }

.topbar-logo {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
  vertical-align: middle;
}

.topbar-version {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--muted);
  position: relative;
  top: 0.4em;
  margin-left: -4px;
  pointer-events: none;
  user-select: none;
}

.topbar-spacer { flex: 0 0 10px; }

.topbar-btn {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
  transition: background-color var(--dur-md);
  text-decoration: none;
}
.topbar-btn:hover { background: var(--hover); }

.tool-btn {
  width: 28px; height: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 0.8rem;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center; justify-content: center;
  transition: background-color var(--dur-fast), border-color var(--dur-fast);
}
.tool-btn:hover { background: var(--hover); }

.icon-btn { font-size: 1rem; border: none; background: transparent; }

/* ---- 管理后台登录状态 ---- */
.admin-status {
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.3;
  white-space: nowrap;
  animation: adminStatusIn 0.25s var(--ease);
}
.admin-status.hidden { display: none; }
.admin-status .status-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #27ae60;
  margin-right: 4px;
  vertical-align: middle;
  position: relative;
  top: -1px;
}

/* ---- 更多下拉菜单 ---- */
.topbar-more {
  position: relative;
}

.more-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 140px;
  z-index: 1000;
  animation: moreIn 0.2s var(--spring);
  transform-origin: top right;
}

.more-menu.hidden { display: none; }

.more-item {
  padding: 8px 14px;
  border: none;
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text);
  text-align: left;
  white-space: nowrap;
  transition: background-color 0.12s, transform 0.12s var(--spring);
}
.more-item:hover { background: var(--hover); transform: translateX(2px); }

@keyframes moreIn {
  from { opacity: 0; transform: scale(0.92) translateY(-8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes adminStatusIn {
  from { opacity: 0; transform: translateX(-12px); }
  to   { opacity: 1; transform: translateX(0); }
}