/* Purchasing Module Styles */

/* Modal Variants */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal-box {
    background: var(--lux-surface, white);
    border-radius: 20px;
    width: 100%;
    max-width: 550px;
    box-shadow: 0 25px 80px rgba(0,0,0,0.3);
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, var(--surface-app), var(--surface-primary));
    border-bottom: 2px solid var(--border-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-header .header-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--info), var(--color-info-700));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    color: white;
}

/* PO Details */
.po-action-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.po-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.po-panel-body {
    max-height: calc(100vh - 480px);
    overflow-y: auto;
}

.line-list { list-style: none; margin: 0; padding: 0; }

.line-row {
    display: block;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: inherit;
}

.line-row:hover { background: var(--bg-tertiary); }

.line-row.active {
    background: linear-gradient(135deg, var(--color-info-50), var(--color-info-100));
    border-left: 4px solid var(--primary);
    padding-left: calc(1.25rem - 4px);
}

.line-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.line-num {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.line-row.active .line-num { background: var(--primary); color: white; }