/**
 * Purchase Order Modal Styles - SAP/ERP Professional Design
 * Version: 3.0
 * Design System: Enterprise Grid System - Axichem Yellow Theme
 */

/* ===============================================
   CSS VARIABLES (SAP/ERP Style)
   =============================================== */
:root {
    /* Axichem Brand Colors */
    --color-primary: #F5B000;
    --color-primary-light: #FFC933;
    --color-primary-dark: #D49800;
    --color-success: #107E3E;
    --color-warning: #E78C07;
    --color-error: #BB0000;
    
    /* Enterprise Gray Scale */
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #EEEEEE;
    --color-gray-300: #E0E0E0;
    --color-gray-400: #BDBDBD;
    --color-gray-500: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    
    /* Spacing - Consistent Grid */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* NO ROUNDED CORNERS */
    --radius-none: 0;
    
    /* Minimal Shadows */
    --shadow-none: none;
    --shadow-sm: 0 1px 0 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
    
    /* Minimal Transitions */
    --transition-fast: 100ms ease;
    --transition-base: 150ms ease;
}

/* ===============================================
   SELECTION MODE SYSTEM - SAP STYLE
   =============================================== */

/* Selection Mode Toggle Button - Flat Design */
#toggle-selection-mode {
    background: white;
    color: var(--color-gray-900);
    border: 1px solid var(--color-gray-400);
    padding: 6px 16px;
    font-weight: 400;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-none);
    cursor: pointer;
}

#toggle-selection-mode:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-600);
}

#toggle-selection-mode.active {
    background: #FFF3CD;
    color: var(--color-gray-900);
    border: 2px solid var(--color-primary);
    border-left-width: 4px;
    font-weight: 600;
}

#toggle-selection-mode.active:hover {
    background: #FFE9A6;
}

/* Body in Selection Mode - Minimal Feedback */
body.selection-mode-active {
    cursor: default;
}

body.selection-mode-active .forecast-cell.selectable,
body.selection-mode-active .consignment-cell.selectable {
    cursor: pointer;
    background: #FFFBF0;
    border: 1px solid var(--color-primary);
    outline: 1px dashed var(--color-primary-dark);
    outline-offset: -2px;
}

body.selection-mode-active .forecast-cell.selectable input,
body.selection-mode-active .consignment-cell.selectable input {
    cursor: pointer;
    pointer-events: none;
    background: transparent;
}

body.selection-mode-active .forecast-cell.selectable:hover,
body.selection-mode-active .consignment-cell.selectable:hover {
    background: #FFF3CD;
    border-color: var(--color-primary-dark);
}

/* Selected Cells - SAP Style (No Checkmark) */
.forecast-cell.selected,
.consignment-cell.selected {
    background: #FFF3CD;
    border: 2px solid var(--color-primary-dark);
    border-left-width: 4px;
    box-shadow: inset 3px 0 0 var(--color-primary);
    position: relative;
}

/* Selection Helper Banner - SAP Style */
.selection-helper {
    padding: 12px 16px;
    background: #FFF8E1;
    border: 1px solid var(--color-primary);
    border-left-width: 4px;
    margin: var(--spacing-md) 0;
    font-size: 0.8125rem;
    color: var(--color-gray-900);
    box-shadow: var(--shadow-none);
}

.selection-helper strong {
    color: var(--color-gray-900);
    font-weight: 600;
}

/* ===============================================
   CREATE PO BUTTON - SAP STYLE
   =============================================== */
#create-po-btn {
    padding: 6px 16px;
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#create-po-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--color-gray-300);
    color: var(--color-gray-600);
    border: 1px solid var(--color-gray-400);
}

#create-po-btn:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-gray-900);
    border: 1px solid var(--color-primary-dark);
    box-shadow: var(--shadow-none);
}

#create-po-btn:not(:disabled):hover {
    background: var(--color-primary-dark);
    border-color: #B87F00;
}

#create-po-btn:not(:disabled):active {
    background: #B87F00;
}

/* Selection Count Badge - Flat Design */
.selection-count {
    display: inline-block;
    background: var(--color-gray-900);
    color: white;
    padding: 2px 8px;
    font-size: 0.6875rem;
    margin-left: var(--spacing-sm);
    font-weight: 700;
    box-shadow: var(--shadow-none);
    border: 1px solid var(--color-gray-800);
}

/* ===============================================
   MODAL OVERLAY & CONTAINER - SAP STYLE
   =============================================== */
.axichem-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.axichem-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

/* Modal Content - Flat Design */
.axichem-modal-content {
    position: relative;
    background: white;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    max-width: 90vw;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--color-gray-400);
}

/* ===============================================
   MODAL HEADER - SAP STYLE
   =============================================== */
.axichem-modal-header {
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #FFF8E1;
    color: var(--color-gray-900);
    box-shadow: var(--shadow-none);
    border-bottom: 2px solid var(--color-primary);
}

.axichem-modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0;
}

.axichem-modal-header .dashicons {
    font-size: 1.5rem;
    vertical-align: middle;
    color: var(--color-gray-800);
}

.axichem-modal-close {
    background: white;
    border: 1px solid var(--color-gray-400);
    color: var(--color-gray-900);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.axichem-modal-close:hover {
    background: var(--color-gray-200);
    border-color: var(--color-gray-600);
}

.axichem-modal-close:active {
    background: var(--color-gray-300);
}

/* ===============================================
   MODAL BODY - SAP STYLE
   =============================================== */
.axichem-modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
    background: var(--color-gray-100);
    /* Custom scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-400) transparent;
}

.axichem-modal-body::-webkit-scrollbar {
    width: 8px;
}

.axichem-modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.axichem-modal-body::-webkit-scrollbar-thumb {
    background: var(--color-gray-400);
}

.axichem-modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
}

/* ===============================================
   CHECKOUT LAYOUT - SAP GRID
   =============================================== */
.po-layout {
    display: grid;
    grid-template-columns: 1.6fr minmax(340px, 1fr);
    gap: 24px;
    align-items: flex-start;
}

.po-summary-column {
    position: sticky;
    top: 16px;
    align-self: flex-start;
}

.po-summary-card {
    background: white;
    border: 1px solid var(--color-gray-400);
    box-shadow: var(--shadow-none);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.summary-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

.summary-eyebrow {
    font-size: 0.6875rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-gray-600);
    font-weight: 600;
}

.summary-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.summary-pill {
    background: var(--color-gray-900);
    color: white;
    padding: 4px 12px;
    font-weight: 600;
    font-size: 0.75rem;
    border: 1px solid var(--color-gray-800);
}

.summary-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.metric {
    background: #FFF8E1;
    border: 1px solid var(--color-primary-light);
    padding: 12px;
    box-shadow: var(--shadow-none);
}

.metric-label {
    font-size: 0.6875rem;
    color: var(--color-gray-700);
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.metric-value {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.po-form-column form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.po-form-column .form-section {
    margin-bottom: 0;
}

.po-empty-state {
    text-align: center;
    padding: 24px;
    color: var(--color-gray-600);
    background: var(--color-gray-50);
    border: 1px dashed var(--color-gray-400);
    font-size: 0.875rem;
}

/* ===============================================
   FORM SECTIONS - SAP STYLE
   =============================================== */
.form-section {
    margin-bottom: 24px;
    padding: 0 0 16px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-gray-300);
    box-shadow: var(--shadow-none);
}

.form-section:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.section-title {
    margin: 0 0 16px 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.section-title .dashicons {
    color: var(--color-gray-700);
    font-size: 1.25rem;
}

.item-count {
    font-size: 0.6875rem;
    background: var(--color-gray-900);
    color: white;
    padding: 2px 8px;
    font-weight: 600;
    border: 1px solid var(--color-gray-800);
}

/* ===============================================
   FORM GRID & FIELDS - SAP STYLE
   =============================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-field {
    display: flex;
    flex-direction: column;
}

.form-field.full-width {
    grid-column: 1 / -1;
}

.form-field label {
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-gray-900);
    font-size: 0.75rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 4px;
}

.required {
    color: var(--color-error);
    font-weight: 700;
    font-size: 0.875rem;
}

.form-control {
    padding: 8px 12px;
    border: 1px solid var(--color-gray-400);
    font-size: 0.875rem;
    font-family: inherit;
    background: white;
    color: var(--color-gray-900);
    box-shadow: var(--shadow-none);
}

.form-control:hover {
    border-color: var(--color-gray-600);
}

.form-control:focus {
    outline: 1px solid var(--color-primary);
    outline-offset: -1px;
    border-color: var(--color-primary);
}

.form-control::placeholder {
    color: var(--color-gray-500);
    font-size: 0.8125rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}

/* ===============================================
   PO ITEMS TABLE - SAP STYLE
   =============================================== */
.po-items-container {
    background: white;
    overflow: hidden;
    border: 1px solid var(--color-gray-400);
    max-height: 400px;
    overflow-y: auto;
    box-shadow: var(--shadow-none);
}

.po-items-table {
    width: 100%;
    border-collapse: collapse;
    border-spacing: 0;
    table-layout: fixed;
    font-size: 0.75rem;
}

.po-items-table thead {
    background: #FFF8E1;
    color: var(--color-gray-900);
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: var(--shadow-none);
}

.po-items-table th {
    padding: 10px 8px;
    text-align: left;
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border: 1px solid var(--color-gray-400);
    border-bottom-width: 2px;
    border-bottom-color: var(--color-primary);
}

.po-items-table td {
    padding: 10px 8px;
    border: 1px solid var(--color-gray-300);
    vertical-align: middle;
    font-size: 0.75rem;
    background: white;
    word-break: break-word;
}

.po-items-table tbody tr {
    transition: none;
}

.po-items-table tbody tr:hover {
    background: #FFFBF0;
}

.po-items-table tbody tr:nth-child(even) {
    background: var(--color-gray-50);
}

.po-items-table tbody tr:nth-child(even):hover {
    background: #FFFBF0;
}

.po-items-table tbody tr:last-child td {
    border-bottom: 1px solid var(--color-gray-400);
}

/* Table Cell Styles */
.product-cell strong {
    color: var(--color-gray-900);
    font-size: 0.8125rem;
    font-weight: 600;
}

.sku-text {
    color: var(--color-gray-600);
    font-size: 0.6875rem;
    font-weight: 400;
}

.month-badge {
    display: inline-block;
    background: var(--color-gray-200);
    color: var(--color-gray-900);
    padding: 3px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    border: 1px solid var(--color-gray-400);
}

.qty-cell input {
    width: 100%;
    max-width: 120px;
}

.action-cell {
    text-align: center;
}

.po-items-table input {
    padding: 6px 8px;
    border: 1px solid var(--color-gray-400);
    font-size: 0.75rem;
    background: white;
    box-shadow: var(--shadow-none);
}

.po-items-table input:hover {
    border-color: var(--color-gray-600);
}

.po-items-table input:focus {
    outline: 1px solid var(--color-primary);
    outline-offset: -1px;
    border-color: var(--color-primary);
}

.po-remove-item {
    background: var(--color-error);
    border: 1px solid #a00000;
    color: white;
    padding: 4px 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.6875rem;
}

.po-remove-item:hover {
    background: #a00000;
    border-color: #8b0000;
}

/* ===============================================
   MODAL FOOTER - SAP STYLE
   =============================================== */
.axichem-modal-footer {
    padding: 16px 24px;
    border-top: 2px solid var(--color-gray-400);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    background: var(--color-gray-100);
    box-shadow: var(--shadow-none);
}

.axichem-modal-footer .button {
    padding: 8px 24px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid;
    box-shadow: var(--shadow-none);
}

.axichem-modal-footer .button:not(.button-primary) {
    background: white;
    color: var(--color-gray-900);
    border-color: var(--color-gray-400);
}

.axichem-modal-footer .button:not(.button-primary):hover {
    background: var(--color-gray-200);
    border-color: var(--color-gray-600);
}

.button-primary {
    background: var(--color-primary);
    color: var(--color-gray-900);
    border-color: var(--color-primary-dark);
}

.button-primary:hover {
    background: var(--color-primary-dark);
    border-color: #B87F00;
}

.button-primary:active {
    background: #B87F00;
}

.button-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--color-gray-300);
    border-color: var(--color-gray-400);
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-top-color: var(--color-gray-900);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===============================================
   RESPONSIVE DESIGN
   =============================================== */
@media (max-width: 1100px) {
    .po-layout {
        grid-template-columns: 1fr;
    }
    
    .po-summary-column {
        position: static;
    }
}

@media (max-width: 768px) {
    .axichem-modal {
        padding: 8px;
    }
    
    .axichem-modal-content {
        width: 100%;
        max-height: 95vh;
    }
    
    .axichem-modal-header {
        padding: 12px 16px;
    }
    
    .axichem-modal-header h2 {
        font-size: 1.125rem;
    }
    
    .axichem-modal-body {
        padding: 16px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .form-section {
        padding: 12px 0;
    }
    
    .section-title {
        font-size: 0.9375rem;
    }
    
    .po-items-container {
        max-height: 300px;
    }
    
    .po-items-table {
        font-size: 0.6875rem;
    }
    
    .po-items-table th,
    .po-items-table td {
        padding: 8px 6px;
    }
    
    .axichem-modal-footer {
        flex-direction: column-reverse;
        gap: 8px;
        padding: 12px 16px;
    }
    
    .axichem-modal-footer .button {
        width: 100%;
        justify-content: center;
        padding: 10px;
    }
}

/* ===============================================
   ACCESSIBILITY
   =============================================== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}