/* ============================================
   绿植书院 - 仪表盘样式
   ============================================ */

/* Dashboard Charts Area */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-bottom: 28px;
}

/* Chart Card */
.chart-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.chart-card .card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chart-card .card-body {
    padding: 24px;
}

/* Simple Bar Chart (CSS-based) */
.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 200px;
    padding-top: 20px;
}

.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    height: 100%;
    justify-content: flex-end;
}

.bar {
    width: 100%;
    max-width: 40px;
    border-radius: 6px 6px 0 0;
    background: linear-gradient(180deg, var(--primary-light), var(--primary));
    transition: all 0.6s ease;
    position: relative;
    min-height: 4px;
}

.bar:hover {
    opacity: 0.85;
    transform: scaleY(1.02);
    transform-origin: bottom;
}

.bar .bar-value {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.bar-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
}

/* Donut Chart (CSS-based) */
.donut-chart-wrapper {
    display: flex;
    align-items: center;
    gap: 24px;
}

.donut-chart {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.donut-chart .donut-hole {
    position: absolute;
    width: 80px;
    height: 80px;
    background: var(--bg-card);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.donut-hole .donut-total {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
}

.donut-hole .donut-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.donut-legend {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-label {
    color: var(--text-secondary);
}

.legend-value {
    margin-left: auto;
    font-weight: 700;
    color: var(--text-primary);
    padding-left: 16px;
}

/* Recent Activity */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-light);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.activity-icon.borrow {
    background: #dbeafe;
    color: #2563eb;
}

.activity-icon.return {
    background: #dcfce7;
    color: #16a34a;
}

.activity-icon.add {
    background: #ccfbf1;
    color: #0f766e;
}

.activity-icon.delete {
    background: #fee2e2;
    color: #dc2626;
}

.activity-icon.user {
    background: #f3e8ff;
    color: #7c3aed;
}

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-text {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.5;
}

.activity-text strong {
    font-weight: 600;
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Popular Books */
.popular-books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.popular-book-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    gap: 14px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
}

.popular-book-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.popular-book-cover {
    width: 50px;
    height: 68px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    flex-shrink: 0;
}

.popular-book-info h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.popular-book-info p {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.popular-book-info .borrow-count {
    font-size: 11px;
    color: var(--primary);
    font-weight: 600;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.quick-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-action-btn .action-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.quick-action-btn .action-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
}