/* ============================================
   ERD VAT 用户管理系统 - 仪表盘页面样式
   ============================================ */

/* ========== 统计卡片行 ========== */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

@media screen and (max-width: 1200px) {
    .dashboard-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 576px) {
    .dashboard-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ========== 仪表盘卡片 ========== */
.dashboard-card {
    background: var(--bg-color-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-base);
    transition: all var(--transition-base);
}

.dashboard-card:hover {
    box-shadow: var(--shadow-md);
}

.dashboard-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.dashboard-card__title {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--text-color-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ========== 系统状态 ========== */
.system-status {
    margin-bottom: var(--spacing-xl);
}

.system-status .el-alert {
    border-radius: var(--radius-md);
}

/* ========== 快速操作 ========== */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.quick-action-btn {
    height: 50px;
    font-size: var(--font-size-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.quick-action-btn:hover {
    transform: translateY(-2px);
}

@media screen and (max-width: 768px) {
    .quick-actions {
        grid-template-columns: 1fr;
    }
    
    .quick-action-btn {
        height: 44px;
    }
}

/* ========== 在线用户统计 ========== */
.online-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.online-stats .stats-card {
    margin-bottom: 0;
}

@media screen and (max-width: 768px) {
    .online-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* ========== 用户表格增强 ========== */
.user-table {
    border-radius: var(--radius-md);
    overflow: hidden;
}

.user-table .el-table__header-wrapper th {
    background: var(--bg-color) !important;
    font-weight: 600;
}

.user-table .el-table__row:hover > td {
    background: var(--primary-bg) !important;
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-info__name {
    font-weight: 600;
    color: var(--text-color-primary);
}

.user-info__id {
    font-size: var(--font-size-xs);
    color: var(--text-color-secondary);
}

.device-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.device-info__name {
    display: flex;
    align-items: center;
    gap: 4px;
}

.device-info__ip {
    font-size: var(--font-size-xs);
    color: var(--text-color-secondary);
}

.device-info__fingerprint {
    font-size: 11px;
    color: var(--success-color);
    font-family: monospace;
}

.heartbeat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.heartbeat-info__time {
    color: var(--text-color-primary);
}

.heartbeat-info__duration {
    font-size: var(--font-size-xs);
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========== 操作按钮组 ========== */
.table-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.table-actions .el-button {
    margin: 0;
}

@media screen and (max-width: 768px) {
    .table-actions {
        flex-direction: column;
    }
    
    .table-actions .el-button {
        width: 100%;
    }
}