/* ========================================
   登录组件样式 - 使用 lc- 前缀避免冲突
   ======================================== */

/* 左上角设置图标 */
.lc-settings-icon {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 44px;
    height: 44px;
    background: var(--settings-icon-bg);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    color: var(--settings-icon-color);
    border: 1px solid var(--settings-icon-border);
}

.lc-settings-icon:hover {
    background: var(--settings-icon-hover-bg);
    transform: rotate(90deg);
    color: var(--settings-icon-hover-color);
}

/* 设置下拉菜单 */
.lc-settings-dropdown {
    position: fixed;
    top: 74px;
    left: 20px;
    background: var(--dropdown-bg);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    padding: 8px;
    min-width: 180px;
    box-shadow: var(--dropdown-shadow);
    border: 1px solid var(--dropdown-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 999;
}

.lc-settings-dropdown--show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 菜单项 */
.lc-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--menu-item-color);
    font-size: 14px;
}

.lc-menu-item:hover {
    background: var(--menu-item-hover-bg);
    color: var(--menu-item-hover-color);
}

.lc-menu-item svg {
    flex-shrink: 0;
}

/* 用户显示项（不可点击） */
.lc-menu-item--user {
    cursor: default;
    background: var(--menu-user-bg);
    border-bottom: 1px solid var(--menu-divider);
    margin-bottom: 4px;
}

.lc-menu-item--user:hover {
    background: var(--menu-user-hover-bg);
}

/* 登出按钮特殊样式 */
.lc-menu-item--logout {
    color: var(--menu-logout-color);
}

.lc-menu-item--logout:hover {
    background: var(--menu-logout-hover-bg);
    color: var(--menu-logout-hover-color);
}

/* 登录弹窗样式 */
.lc-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-overlay);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.lc-modal--show {
    display: flex;
}

.lc-modal__container {
    background: var(--modal-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--modal-shadow);
    width: 90%;
    max-width: 400px;
    position: relative;
    animation: lcSlideIn 0.3s ease;
}

@keyframes lcSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.lc-modal__title {
    margin: 0 0 30px 0;
    color: var(--modal-title-color);
    text-align: center;
}

.lc-form-group {
    margin-bottom: 20px;
}

.lc-form-group__label {
    display: block;
    margin-bottom: 8px;
    color: var(--form-label-color);
    font-weight: 500;
}

.lc-form-group__input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--form-input-border);
    border-radius: 10px;
    font-size: 14px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
    background: var(--form-input-bg);
    color: var(--form-input-color);
}

.lc-form-group__input:focus {
    outline: none;
    border-color: var(--form-input-focus-border);
}

.lc-submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lc-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.lc-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--close-btn-color);
    transition: color 0.3s ease;
}

.lc-close-btn:hover {
    color: var(--close-btn-hover-color);
}

.lc-error-message {
    color: #ff4757;
    font-size: 13px;
    margin-top: 10px;
    text-align: center;
}

.lc-menu-divider {
    height: 1px;
    background: var(--menu-divider);
    margin: 4px 0;
}

/* 暗色主题变量（默认） */
:root {
    /* 设置图标 */
    --settings-icon-bg: rgba(255, 255, 255, 0.1);
    --settings-icon-color: rgba(255, 255, 255, 0.8);
    --settings-icon-border: rgba(255, 255, 255, 0.1);
    --settings-icon-hover-bg: rgba(255, 255, 255, 0.15);
    --settings-icon-hover-color: white;
    
    /* 下拉菜单 */
    --dropdown-bg: rgba(30, 30, 50, 0.95);
    --dropdown-border: rgba(255, 255, 255, 0.1);
    --dropdown-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* 菜单项 */
    --menu-item-color: rgba(255, 255, 255, 0.8);
    --menu-item-hover-bg: rgba(255, 255, 255, 0.1);
    --menu-item-hover-color: white;
    --menu-user-bg: rgba(102, 126, 234, 0.2);
    --menu-user-hover-bg: rgba(102, 126, 234, 0.25);
    --menu-logout-color: #ff6b6b;
    --menu-logout-hover-bg: rgba(255, 107, 107, 0.1);
    --menu-logout-hover-color: #ff8787;
    --menu-divider: rgba(255, 255, 255, 0.1);
    
    /* 弹窗 */
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --modal-bg: white;
    --modal-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    --modal-title-color: #333;
    --form-label-color: #555;
    --form-input-bg: white;
    --form-input-color: #333;
    --form-input-border: #e0e0e0;
    --form-input-focus-border: #667eea;
    --close-btn-color: #999;
    --close-btn-hover-color: #333;
}

/* 亮色主题变量 */
[data-theme="light"] {
    /* 设置图标 */
    --settings-icon-bg: rgba(0, 0, 0, 0.08);
    --settings-icon-color: rgba(0, 0, 0, 0.7);
    --settings-icon-border: rgba(0, 0, 0, 0.1);
    --settings-icon-hover-bg: rgba(0, 0, 0, 0.12);
    --settings-icon-hover-color: rgba(0, 0, 0, 0.9);
    
    /* 下拉菜单 */
    --dropdown-bg: rgba(255, 255, 255, 0.95);
    --dropdown-border: rgba(0, 0, 0, 0.1);
    --dropdown-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    
    /* 菜单项 */
    --menu-item-color: rgba(0, 0, 0, 0.8);
    --menu-item-hover-bg: rgba(0, 0, 0, 0.05);
    --menu-item-hover-color: rgba(0, 0, 0, 0.9);
    --menu-user-bg: rgba(102, 126, 234, 0.15);
    --menu-user-hover-bg: rgba(102, 126, 234, 0.2);
    --menu-logout-color: #e63946;
    --menu-logout-hover-bg: rgba(230, 57, 70, 0.1);
    --menu-logout-hover-color: #d62828;
    --menu-divider: rgba(0, 0, 0, 0.1);
    
    /* 弹窗 */
    --modal-overlay: rgba(0, 0, 0, 0.5);
    --modal-bg: white;
    --modal-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    --modal-title-color: #1e293b;
    --form-label-color: #475569;
    --form-input-bg: #f8fafc;
    --form-input-color: #1e293b;
    --form-input-border: #cbd5e1;
    --form-input-focus-border: #667eea;
    --close-btn-color: #64748b;
    --close-btn-hover-color: #1e293b;
}