/* 右上角使用者選單：React <UserMenu>（portal）與 lib/nav.ts userMenuHtml（legacy 首頁／
   /create）共用同一套 class；兩邊 markup 要同步。全部用 px：legacy 頁 1rem=10px。 */
:root { --line-green: #06C755; --line-gray: #8C8C8C; }
/* ── 使用者選單（右上角頭像；components/portal/UserMenu.tsx 與 lib/nav.ts userMenuHtml）───────────────
   桌機：頭像＋暱稱＋▾ 的淡灰膠囊；手機：只剩 32px 頭像。點開下拉卡片。 */
.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
    border-radius: 50%;
    object-fit: cover;
    background: #eaf8f0;
}
.user-avatar--initial {
    background: #e6f7ec;
    color: var(--line-green);
    font-weight: 700;
    line-height: 1;
}
.user-menu {
    position: relative;
    display: inline-flex;
    align-items: center;
}
/* `nav .user-menu-toggle` 提高特異性：legacy line_name_card.css 的 `nav button`（白字綠底）
   與 milligram 的 button（大寫、3.8rem 高、紫底）都會蓋過單一 class。 */
nav .user-menu-toggle,
.user-menu-toggle {
    display: inline-flex;
    height: auto;
    line-height: 1.2;
    letter-spacing: 0;
    text-transform: none;
    margin: 0;
    box-shadow: none;
    align-items: center;
    gap: 8px;
    padding: 3px 10px 3px 3px;
    border: 1px solid transparent;
    border-radius: 999px;
    background: #f3f4f6;
    color: #1f2a37;
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
nav .user-menu-toggle:hover,
nav .user-menu.open .user-menu-toggle,
.user-menu-toggle:hover,
.user-menu.open .user-menu-toggle {
    color: #1f2a37;
    background: #e9ecef;
    border-color: #dee2e6;
}
.user-menu-name {
    max-width: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-menu-caret {
    font-size: 10px !important;
    color: var(--line-gray);
    transition: transform 0.15s;
}
.user-menu.open .user-menu-caret {
    transform: rotate(180deg);
}
.user-menu-panel {
    /* legacy 版面板固定在 DOM 裡，只有 .open 才顯示；React 版有開才 render，兩邊都通。 */
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 280px;
    max-width: calc(100vw - 24px);
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14);
    padding: 6px;
    z-index: 1100;
    text-align: left;
    animation: user-menu-in 0.12s ease-out;
}
.user-menu.open .user-menu-panel {
    display: block;
}
@keyframes user-menu-in {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: none; }
}
.user-menu-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 10px 12px;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 4px;
}
.user-menu-head-text {
    min-width: 0;
}
.user-menu-head-name {
    font-size: 15px;
    font-weight: 700;
    color: #1f2a37;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-menu-head-sub {
    margin-top: 2px;
    font-size: 12px;
    color: var(--line-gray);
    display: flex;
    align-items: center;
    gap: 4px;
}
.user-menu-head-sub i {
    color: var(--line-green);
}
.user-menu-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 10px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    color: #1f2a37;
}
.user-menu-row:hover {
    background: #f6f7f9;
}
.user-menu-row-label {
    color: var(--line-gray);
    flex: none;
}
.user-menu-row-value {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
    text-align: right;
}
.user-menu-row-value.muted {
    color: #9ca3af;
    font-weight: 500;
}
.user-menu-badge {
    flex: none;
    padding: 2px 8px;
    border-radius: 999px;
    background: #fff4e5;
    color: #b45309;
    font-size: 12px;
    font-weight: 600;
}
.user-menu-sep {
    height: 1px;
    background: #f0f0f0;
    margin: 4px 6px;
}
.user-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 10px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    color: #1f2a37;
}
.user-menu-item i {
    width: 18px;
    text-align: center;
    color: var(--line-gray);
    font-size: 15px;
}
.user-menu-item:hover {
    background: #f6f7f9;
    color: var(--line-green);
}
.user-menu-item:hover i {
    color: var(--line-green);
}
@media (min-width: 769px) {
    .user-menu-share-mobile,
    .user-menu-card-nav {
        display: none !important;
    }
}
@media (max-width: 768px) {
    nav .user-menu-toggle,
    .user-menu-toggle {
        padding: 0;
        background: transparent;
        border: 2px solid transparent;
    }
    nav .user-menu.open .user-menu-toggle,
    .user-menu.open .user-menu-toggle {
        border-color: var(--line-green);
        background: transparent;
    }
    .user-menu-panel {
        right: -6px;
    }
}