/* ===== DRILLDOWN NAVIGATION SYSTEM ===== */

/* Breadcrumb Navigation */
.drilldown-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0;
    flex-wrap: wrap;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.breadcrumb-item:hover {
    color: var(--accent-color);
    background: var(--tertiary-color);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 600;
    cursor: default;
}

.breadcrumb-separator {
    color: var(--border-color);
    user-select: none;
}

/* Drilldown Container */
.drilldown-container {
    min-height: 400px;
    animation: fadeIn 0.3s ease-out;
}

/* Drilldown Header */
.drilldown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.drilldown-title {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.drilldown-title h2 {
    margin: 0;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.drilldown-count {
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.drilldown-actions {
    display: flex;
    gap: 0.75rem;
}

/* Drilldown Grid */
.drilldown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

/* Drilldown Card */
.drilldown-card {
    background: var(--primary-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.drilldown-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-color);
    transform: scaleY(0);
    transition: transform var(--transition-base);
}

.drilldown-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.drilldown-card:hover::before {
    transform: scaleY(1);
}

/* Card Header */
.drilldown-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.drilldown-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    border-radius: 12px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.drilldown-card-icon .material-symbols-outlined {
    font-size: 28px;
}

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

.drilldown-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    word-wrap: break-word;
}

.drilldown-card-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Footer */
.drilldown-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

.drilldown-card-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.drilldown-card-meta .material-symbols-outlined {
    font-size: 18px;
}

.drilldown-card-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.drilldown-card:hover .drilldown-card-actions {
    opacity: 1;
}

.drilldown-action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tertiary-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-primary);
}

.drilldown-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.drilldown-action-btn.edit:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.drilldown-action-btn.delete:hover {
    background: var(--danger-color);
    color: var(--primary-color);
}

.drilldown-action-btn .material-symbols-outlined {
    font-size: 20px;
}

/* Empty State */
.drilldown-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.drilldown-empty-icon {
    font-size: 80px !important;
    color: var(--border-color);
    margin-bottom: 1rem;
}

.drilldown-empty h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.drilldown-empty p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Back Button */
.drilldown-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--tertiary-color);
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.drilldown-back-btn:hover {
    background: var(--border-color);
    transform: translateX(-4px);
}

.drilldown-back-btn .material-symbols-outlined {
    font-size: 20px;
}

/* Loading State */
.drilldown-loading {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.drilldown-skeleton-card {
    height: 180px;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}