/* ============================================
   Purchase Order (Bestellung) Styles

   Contains PO-specific styling:
   - Position rows & input grids
   - PO list tables with status badges
   - Modal forms for PO creation/editing
   - Material filtering and statistics
   - Wareneingang (goods receipt) sections
   - Responsive layout adjustments

   Dependencies: core.css (variables), components.css (buttons, modals, forms)

   Cleanup Notes:
   - Removed duplicate button definitions (now uses components.css base)
   - Removed duplicate modal styles (uses components.css definitions)
   - Removed duplicate form styles (uses components.css definitions)
   - Replaced hardcoded colors with CSS variables
   - Unified badge colors using var() references
   - Fixed --bg-primary, --bg-secondary references to use standard variables

   ============================================ */

/* PO Position Row */
.po-position-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto;
    gap: 8px;
    margin-bottom: 8px;
    padding: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    align-items: start;
}

.po-position-row input,
.po-position-row select {
    width: 100%;
    padding: 8px 10px;
    min-height: 38px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
}

@media (max-width: 640px) {
    .po-position-row input,
    .po-position-row select {
        min-height: 44px;
        font-size: 16px;
    }
}

.po-position-row input:focus,
.po-position-row select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* PO List */
.po-list {
    margin-top: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.po-list table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
}

.po-list thead {
    background: var(--bg-secondary);
}

.po-list th {
    text-align: left;
    padding: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.po-list td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 13px;
}

.po-list tbody tr:last-child td {
    border-bottom: none;
}

.po-list tbody tr:hover {
    background: var(--bg-secondary);
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

/* Badge Colors - Status indicators */
.badge-entwurf {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.badge-bestellt {
    background: var(--accent-info-light);
    color: var(--accent-info);
}

.badge-teillieferung {
    background: var(--accent-warning-light);
    color: var(--accent-warning);
}

.badge-geliefert {
    background: var(--accent-success-light);
    color: var(--accent-success);
}

.badge-storniert {
    background: var(--accent-danger-light);
    color: var(--accent-danger);
}

/* PO Modal Styles */
#modal-bestellung .modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: 70vh;
}

#modal-bestellung .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

#modal-bestellung .form-group {
    margin-bottom: 16px;
}

#modal-bestellung .form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
}

#modal-bestellung .form-group input,
#modal-bestellung .form-group textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
}

#modal-bestellung .form-group input:focus,
#modal-bestellung .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#modal-bestellung .form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Summary Box */
.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding: 8px 0;
}

.summary-row span {
    color: var(--text-primary);
}

.summary-row span:last-child {
    font-weight: 600;
    text-align: right;
}

/* Modal Footer */
.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* Material Filter */
.material-filter {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.material-filter input,
.material-filter select {
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
}

.material-filter input:focus,
.material-filter select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Material Stats - PO specific customization
   Note: Base .material-stats and .stat-mini defined in components.css
   PO variant uses darker background:
*/

.material-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-mini {
    background: var(--bg-card);
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-primary);
}

.stat-mini span:first-child {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.stat-mini span:last-child {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-mini.stat-warning {
    border-left-color: var(--accent-warning);
}

.stat-mini.stat-warning span:first-child {
    color: var(--accent-warning);
}

.stat-mini.stat-success {
    border-left-color: var(--accent-success);
}

.stat-mini.stat-success span:first-child {
    color: var(--accent-success);
}

/* Button Styles - PO Specific Size Variants
   Note: Base .btn, .btn-primary, .btn-secondary, .btn-success, .btn-danger defined in components.css
*/

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-large {
    padding: 12px 24px;
    font-size: 14px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
    font-size: 14px;
}

/* View Header */
.view-header {
    margin-bottom: 24px;
}

.view-header-row {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 24px;
}

.view-header h1 {
    margin: 0 0 4px 0;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.view-header .subtitle {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.header-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* PO Detail Modal */
#modal-po-detail .modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: 70vh;
}

#modal-po-detail .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

#modal-po-detail .form-group {
    margin-bottom: 16px;
}

#modal-po-detail .form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#modal-po-detail .form-group > div {
    color: var(--text-primary);
    font-size: 13px;
}

/* PO Detail Table */
#modal-po-detail table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
}

#modal-po-detail table thead {
    background: var(--bg-secondary);
}

#modal-po-detail table th {
    padding: 8px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

#modal-po-detail table td {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-primary);
}

#modal-po-detail table tbody tr:last-child td {
    border-bottom: none;
}

#modal-po-detail table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Wareneingang Section */
#po-wareneingang-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

#po-wareneingang-form {
    display: grid;
    gap: 12px;
}

#po-wareneingang-form > div {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 12px;
    align-items: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 4px;
}

#po-wareneingang-form label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 13px;
}

#po-wareneingang-form span {
    font-size: 12px;
    color: var(--text-muted);
}

#po-wareneingang-form input {
    width: 100%;
    padding: 6px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
}

#po-wareneingang-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Modal Styles - See components.css for base .modal, .modal-overlay, .modal-content, .modal-header, .modal-close, .modal-body, .modal-footer
   PO-specific adjustments only:
*/

.modal-large {
    width: 900px;
}

/* Responsive */
@media (max-width: 768px) {
    .material-filter {
        grid-template-columns: 1fr;
    }

    .po-position-row {
        grid-template-columns: 1fr;
    }

    .modal-large {
        width: 100%;
    }

    .view-header-row {
        flex-direction: column;
    }

    .header-actions {
        width: 100%;
        justify-content: flex-start;
    }

    .header-actions .btn {
        flex: 1;
        justify-content: center;
    }

    .material-stats {
        grid-template-columns: 1fr;
    }
}