/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --panel-bg: #ffffff;
    --text-color: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    /* 2D Schema Font Sizes (Canvas) */
    --schema-font-id: bold 12px Arial;
    --schema-font-dims: 11px Arial;
    --schema-font-truck: 11px Arial;
    --schema-font-title: bold 12px Arial;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-lg);
}

header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.25rem;
}

header p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Main Content Layout */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Control Panel */
.control-panel {
    width: 380px;
    background: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Control Panel Tabs */
.control-tabs-header {
    display: flex;
    background: var(--panel-bg);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.control-tab-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
    border-bottom: 3px solid transparent;
}

.control-tab-btn:hover {
    color: var(--text-color);
    background: rgba(37, 99, 235, 0.05);
}

.control-tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.control-tab-content {
    display: none;
    flex: 1;
    flex-direction: column;
    overflow-y: auto;
    padding: 1.5rem;
}

.control-tab-content.active {
    display: flex;
}

.panel-section {
    margin-bottom: 2rem;
}

.panel-section h2 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.panel-section h3 {
    font-size: 1rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Form Elements */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input[type="text"]:focus,
.form-group input[type="password"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.hint-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-style: italic;
}

.form-group textarea {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    resize: vertical;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 0.5rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #475569;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Results Section */
.results-section {
    background: #f1f5f9;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

#results-container {
    font-size: 0.9rem;
}

.info-text {
    color: var(--text-secondary);
    font-style: italic;
}

.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-item {
    background: white;
    padding: 1rem;
    border-radius: 6px;
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.utilization-bar {
    width: 100%;
    height: 24px;
    background: #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.utilization-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), #059669);
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
}

.warning-box {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 0.75rem;
    margin-top: 1rem;
    border-radius: 4px;
}

.error-box {
    background: #fee2e2;
    border-left: 4px solid var(--danger-color);
    padding: 0.75rem;
    margin-top: 1rem;
    border-radius: 4px;
}

/* Visualization Area */
.visualization-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: #1e293b;
    overflow: hidden;
}

.tabs-header {
    display: flex;
    background: #0f172a;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tab-btn {
    padding: 1rem 2rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: white;
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.tab-content {
    display: none;
    flex: 1;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.tab-content.active {
    display: flex;
}

.view-controls, .table-controls, .schema-controls {
    display: flex;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(30, 41, 59, 0.9);
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table-controls {
    justify-content: space-between;
    background: #f8fafc;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

.table-controls .btn-group {
    display: flex;
    gap: 0.5rem;
}

.table-controls .btn {
    padding: 0.4rem 0.75rem;
    border: 1px solid;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s;
    background: #e5e7eb;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    white-space: nowrap;
}

.table-controls .btn-secondary {
    color: var(--text-color);
    border-color: #d1d5db;
    background: #e5e7eb;
}

.table-controls .btn-secondary:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table-controls .btn-danger {
    color: var(--danger-color);
    border-color: #fca5a5;
    background: #e5e7eb;
}

.table-controls .btn-danger:hover {
    background: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.table-controls .btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.table-header-params {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1rem 1.5rem;
    background: white;
    border-bottom: 1px solid var(--border-color);
    align-items: flex-end;
}

.table-header-params .param-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.table-header-params label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.table-header-params input, 
.table-header-params select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    background: #f8fafc;
    color: var(--text-color);
    min-width: 100px;
}

.table-header-params input:focus, 
.table-header-params select:focus {
    outline: none;
    border-color: var(--primary-color);
    background: white;
}

.table-header-params .action-group {
    margin-left: auto;
}

.table-footer-stats {
    display: flex;
    justify-content: flex-end;
    gap: 2rem;
    padding: 1rem 1.5rem;
    background: #f8fafc;
    border-top: 1px solid var(--border-color);
}

.table-footer-stats .stat-box {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}

.table-footer-stats .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.table-footer-stats .value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
}

#btn-generate-pack {
    padding: 0.6rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

#packages-table {
    flex: 1;
    width: 100%;
    background: white;
    border: none !important;
}

.tabulator-header {
    background-color: #f1f5f9 !important;
    border-bottom: 2px solid var(--border-color) !important;
}

.tabulator-col {
    background-color: #f1f5f9 !important;
}

.tabulator-row.tabulator-selected {
    background-color: rgba(37, 99, 235, 0.1) !important;
}

#schema-container {
    flex: 1;
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
    padding: 0; /* Removed padding to maximize width */
}

#schema-canvas {
    width: 100%;
    /* height is managed by JS to maintain aspect ratio */
    background: white;
}

/* Print Form Styles */
.print-controls {
    padding: 1rem;
    background: #f1f5f9;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.print-controls .btn {
    flex: none;
    width: auto;
    padding: 0.75rem 2rem;
}

#print-schema-container,
#print-doc-container {
    background: white;
    color: black;
    padding: 40px;
    margin: 20px auto;
    width: 210mm; /* Default A4 Width */
    min-height: 297mm; /* Default A4 Height */
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    overflow-y: auto;
}

#print-schema-container.landscape,
#print-doc-container.landscape {
    width: 297mm;
    min-height: 210mm;
}

.print-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 2px solid #334155;
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.print-header h1 {
    font-size: 24px;
    color: #1e293b;
    margin: 0;
}

.order-meta {
    text-align: right;
    font-size: 14px;
    color: #475569;
}

.print-section {
    margin-bottom: 40px;
}

.print-section h2 {
    font-size: 18px;
    border-left: 4px solid var(--primary-color);
    padding-left: 10px;
    margin-bottom: 20px;
    color: #1e293b;
}

.print-canvas-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0 -40px; /* Pull out to offset container padding */
    overflow: hidden; /* Ensure it doesn't leak */
}

.print-canvas-item {
    border: 1px solid #e2e8f0;
    padding: 10px;
    background: #f8fafc;
}

.print-canvas-item.no-frame {
    border: none;
    padding: 0;
    background: transparent;
}

#print-top-canvas, #print-side-canvas {
    width: 100%;
    height: auto;
    display: block;
}

#print-summary-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

#print-summary-table th, #print-summary-table td {
    border: 1px solid #cbd5e1;
    padding: 12px;
    text-align: left;
    font-size: 14px;
}

#print-summary-table th {
    background: #f1f5f9;
    font-weight: 600;
}

#print-summary-table tfoot th {
    background: #f8fafc;
    border-top: 2px solid #334155;
}


/* Media Query for actual printing */
@media print {
    @page {
        margin: 5mm;
        size: auto;
    }

    /* Total cleanup to remove empty pages */
    html, body {
        height: auto !important;
        min-height: 0 !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: visible !important;
        background: white !important;
    }

    /* Hide everything except the print tab */
    body > *:not(.container) {
        display: none !important;
    }

    /* Hide everything except the active tab content */
    body > *:not(.container) {
        display: none !important;
    }

    header, aside, .tabs-header, footer, .print-controls, 
    .tab-content:not(.active), #results-container, .view-controls {
        display: none !important;
    }

    /* Ensure container doesn't create extra space */
    .container {
        display: block !important;
        position: static !important;
        height: auto !important;
        min-height: 0 !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .main-content, .visualization-area {
        display: block !important;
        position: static !important;
        margin: 0 !important;
        padding: 0 !important;
        height: auto !important;
        width: 100% !important;
        overflow: visible !important;
        background: white !important;
        box-shadow: none !important;
    }

    .tab-content.active {
        display: block !important;
        position: static !important;
        width: 100% !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .print-page {
        display: block !important;
        margin: 0 !important;
        padding: 2mm !important;
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        min-height: 0 !important;
        box-shadow: none !important;
        overflow: visible !important;
    }

    .print-header {
        margin-bottom: 10px !important;
        padding-bottom: 10px !important;
        border-bottom: 1px solid #000 !important;
    }

    .print-header h1 {
        font-size: 18px !important;
        margin: 0 !important;
    }

    .order-meta {
        margin-bottom: 5px !important;
        gap: 20px !important;
    }

    .order-meta p {
        margin: 0 !important;
        font-size: 12px !important;
    }

    .print-page.landscape {
        width: 100% !important;
    }
    
    /* Ensure canvases fill the width and maintain aspect ratio */
    canvas {
        display: block !important;
        width: 100% !important;
        max-width: 100% !important;
        height: auto !important;
        image-rendering: -webkit-optimize-contrast;
    }

    .print-section {
        margin-bottom: 10px !important;
        page-break-inside: auto !important;
    }

    .print-canvas-group {
        gap: 10px;
        margin: 0;
    }
}


.view-btn, .schema-btn {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.view-btn:hover,
.view-btn.active,
.schema-btn:hover,
.schema-btn.active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.wireframe-toggle {
    color: white;
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

#canvas-container {
    flex: 1;
    position: relative;
}

#info-overlay {
    position: absolute;
    top: 80px;
    left: 20px;
    pointer-events: none;
}

#hover-info {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    min-width: 200px;
    display: none;
}

#hover-info.visible {
    display: block;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal.active {
    display: block;
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 80%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: var(--text-color);
}

/* Pallet List */
.pallet-item {
    background: var(--bg-color);
    padding: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.pallet-item h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.pallet-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    font-size: 0.85rem;
}

.pallet-details span {
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .control-panel {
        width: 320px;
    }
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .control-panel {
        width: 100%;
        max-height: 40vh;
    }

    .visualization-area {
        height: 60vh;
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Scrollbar Styling */
.control-panel::-webkit-scrollbar {
    width: 8px;
}

.control-panel::-webkit-scrollbar-track {
    background: var(--bg-color);
}

.control-panel::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.control-panel::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}