/* ============================================
   FAN INVENTORY PANEL
   Pre-installed + added fans per case slot
   ============================================ */

.pkb-fan-inventory {
    margin-top: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    background: var(--bg-secondary);
}

/* Header row: title + total pill */
.pkb-fan-inventory__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.625rem;
    gap: 0.5rem;
}

.pkb-fan-inventory__title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.pkb-fan-inventory__pill {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 8px;
    border-radius: 100px;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Sections: pre-installed vs added */
.pkb-fan-inventory__section {
    margin-bottom: 0.75rem;
}

.pkb-fan-inventory__section:last-child {
    margin-bottom: 0;
}

.pkb-fan-inventory__label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    margin: 0 0 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Individual fan row */
.pkb-fan-inventory__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.3125rem 0;
    border-bottom: 1px solid var(--border);
    gap: 0.5rem;
}

.pkb-fan-inventory__row:last-child {
    border-bottom: none;
}

/* Fan name + size */
.pkb-fan-inventory__fan-info {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    flex-wrap: wrap;
    min-width: 0;
}

.pkb-fan-inventory__fan-name {
    font-size: 0.8125rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pkb-fan-inventory__fan-size {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Removed state: crossed out, muted */
.pkb-fan-inventory__row--removed .pkb-fan-inventory__fan-name,
.pkb-fan-inventory__row--removed .pkb-fan-inventory__fan-size {
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.6;
}

/* Keep / Remove toggle buttons */
.pkb-fan-inventory__toggle {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    white-space: nowrap;
    flex-shrink: 0;
    background: transparent;
    line-height: 1.4;
}

.pkb-fan-inventory__toggle--keep {
    color: var(--success);
    border-color: var(--success);
}

.pkb-fan-inventory__toggle--keep:hover {
    background: var(--success-bg);
}

.pkb-fan-inventory__toggle--remove {
    color: var(--error);
    border-color: var(--error);
}

.pkb-fan-inventory__toggle--remove:hover {
    background: var(--error-bg);
}

/* Focus rings for keyboard navigation */
.pkb-fan-inventory__toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Empty state */
.pkb-fan-inventory__empty {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin: 0;
    font-style: italic;
}

/* Divider between pre-installed and added sections */
.pkb-fan-inventory__divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 0.625rem 0;
}