/* ============================================
   背包 Modal
   盲盒易拉罐 - 一只打工猫的逆袭故事
   ============================================ */

.backpack-modal {
    text-align: center;
}

.backpack-filters {
    display: flex;
    gap: 6px;
    margin-bottom: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--accent-gold);
    color: var(--text-primary);
}

.filter-btn.active {
    background: var(--accent-gold);
    color: var(--bg-primary);
    border-color: var(--accent-gold);
}

.backpack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 6px;
    flex: 1;
    overflow-y: auto;
    padding: 4px;
    min-height: 0;
}

.backpack-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.backpack-item:hover {
    border-color: var(--accent-gold);
    transform: translateY(-2px);
}

.backpack-item-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.backpack-item-name {
    font-size: 10px;
    font-weight: 600;
    margin-bottom: 2px;
}

.backpack-item-count {
    font-size: 10px;
    color: var(--text-secondary);
}

.backpack-actions {
    display: flex;
    gap: 10px;
}

.btn-sell-trash {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-sell-trash:hover {
    border-color: var(--accent-gold);
}