/* =========================================
   Variables & Design System
   ========================================= */
:root {
    /* Colors */
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #10b981;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Radii */
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* =========================================
   Reset & Base Styles
   ========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

/* =========================================
   Layout
   ========================================= */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: 250px;
    min-width: 250px;
    max-width: 250px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg) 0;
    z-index: 10;
}

.logo {
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.logo h2 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: 0 var(--spacing-md);
    flex-grow: 1;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-muted);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.nav-btn:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-main);
}

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

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

/* Main Content */
.main-content {
    flex-grow: 1;
    position: relative;
    overflow: hidden;
}

.view {
    display: none;
    height: 100%;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border);
    background-color: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
}

.view-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Components */
.toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn {
    background-color: var(--bg-card-hover);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn:hover {
    background-color: var(--border);
}

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

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

.btn.small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

.w-full {
    width: 100%;
}

.divider {
    width: 1px;
    height: 24px;
    background-color: var(--border);
}

/* Workspace (Schema View) */
.workspace {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
}

.tools-panel {
    width: 250px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.library {
    flex-grow: 1;
    overflow-y: auto;
}

.panel-section {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.panel-section h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.catalog-category {
    border-bottom: 1px solid var(--border);
}

.catalog-category summary {
    padding: var(--spacing-md);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    list-style: none; /* Hide default arrow */
    position: relative;
    user-select: none;
    transition: background-color 0.2s;
}

.catalog-category summary::-webkit-details-marker {
    display: none;
}

.catalog-category summary:hover {
    background-color: var(--bg-card-hover);
}

.catalog-category summary::after {
    content: '▼';
    position: absolute;
    right: var(--spacing-md);
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: transform 0.3s;
}

.catalog-category[open] summary::after {
    transform: rotate(180deg);
}

.catalog-category .eq-grid {
    padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
    /* We inherit the existing eq-grid flexbox styles */
}

.layer-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.layer-item.hidden {
    opacity: 0.5;
}

.circuit-tree {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.circuit-item {
    background-color: var(--bg-card-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    font-size: 0.85rem;
}

.circuit-header {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
    color: var(--text-main);
    margin-bottom: var(--spacing-xs);
}

.circuit-eq-list {
    list-style: disc inside;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 5px;
}

.layer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 0.9rem;
}

.layer-item:hover {
    background-color: var(--bg-card-hover);
}

.layer-item.active {
    background-color: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
}

.layer-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.equipment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.eq-item {
    background-color: var(--bg-card-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    text-align: center;
    font-size: 0.8rem;
    cursor: grab;
    transition: all 0.2s;
    user-select: none;
}

.eq-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.canvas-container {
    flex-grow: 1;
    width: 100%;
    height: 100%;
    background-color: #000; /* Darker background for contrast */
    position: relative;
    overflow: hidden;
    cursor: crosshair;
}

#main-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.overlay {
    position: absolute;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 20px;
    font-size: 0.9rem;
    pointer-events: none;
}

.hidden {
    display: none !important;
}

/* Devis View */
.devis-container {
    flex: 1;
    min-height: 0;
    padding: var(--spacing-xl);
    overflow-y: auto;
}

.devis-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.devis-table th, .devis-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.devis-table th {
    background-color: rgba(0, 0, 0, 0.2);
    font-weight: 600;
    color: var(--text-muted);
}

.text-right {
    text-align: right !important;
}

.total-row {
    background-color: rgba(59, 130, 246, 0.1);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Tableau View */
.tableau-container {
    flex: 1;
    min-height: 0;
    padding: var(--spacing-xl);
    overflow-y: auto;
    display: flex;
    justify-content: center;
}

.tableau-board {
    background-color: #fff; /* White to look like real hardware */
    color: #1e293b; /* Dark text for visibility on white background */
    width: 100%;
    max-width: 800px;
    min-height: 500px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
}
/* Append to style.css */

/* Properties Panel */
.properties-panel {
    position: absolute;
    right: var(--spacing-md);
    top: var(--spacing-md);
    width: 250px;
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.properties-panel h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

.prop-group {
    margin-bottom: var(--spacing-md);
}

.prop-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.prop-input {
    width: 100%;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.btn.danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.2);
}

.btn.danger:hover {
    background-color: #ef4444;
    color: white;
}

/* Devis Spreadsheet */
.devis-spreadsheet {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.devis-block {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.devis-block-header {
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.devis-block-header input {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.1rem;
    background-color: var(--bg-card-hover);
    outline: none;
    width: 100%;
}

.devis-row {
    display: grid;
    grid-template-columns: 2fr 0.8fr 1fr 1fr 1fr 0.8fr 1fr 1fr 40px;
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s;
}

.devis-row:hover {
    background-color: var(--bg-card-hover);
}

.devis-row.header-row {
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}

.devis-cell {
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
}

.devis-cell input {
    width: 100%;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    padding: var(--spacing-xs);
    font-family: inherit;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
}

.devis-cell input:focus {
    border-color: var(--primary);
    outline: none;
    background-color: var(--bg-dark);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
}

.btn-icon:hover {
    color: #ef4444;
    background-color: rgba(239, 68, 68, 0.1);
}

.btn-icon.add {
    color: var(--accent);
}

.btn-icon.add:hover {
    color: white;
    background-color: var(--accent);
}

.devis-totals {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--spacing-sm);
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.devis-totals .total-row {
    display: flex;
    justify-content: space-between;
    width: 300px;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.devis-totals .total-row.ttc {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
}
/* Append for Print/PDF Export */

@media print {
    /* Hide everything that is not the main view */
    .sidebar { display: none !important; }
    .view-header { display: none !important; }
    
    /* Ensure only devis view is printed */
    body, .app-container, .main-content {
        height: auto !important;
        overflow: visible !important;
        background-color: white !important;
        color: black !important;
    }
    
    /* Hide non-active views just in case */
    .view { display: none !important; }
    #view-devis { display: block !important; }
    
    .devis-container {
        padding: 0 !important;
        overflow: visible !important;
    }
    
    /* Restyle blocks for print (remove dark theme) */
    .devis-block {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.devis-block-header {
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.devis-block-header input {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.1rem;
    background-color: var(--bg-card-hover);
    outline: none;
    width: 100%;
}

.devis-row {
    display: grid;
    grid-template-columns: 2fr 0.8fr 1fr 1fr 1fr 0.8fr 1fr 1fr 40px;
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s;
}

.devis-row:hover {
    background-color: var(--bg-card-hover);
}

.devis-row.header-row {
    background-color: rgba(0, 0, 0, 0.1);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}

.devis-cell {
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
}

.devis-cell input {
        color: black !important;
        border: none !important;
    }
    
    /* Hide action buttons in devis (delete row, add row) */
    .btn-icon, .btn {
        display: none !important;
    }
    
    .devis-totals {
        background-color: transparent !important;
        color: black !important;
    }
    
    .devis-totals .total-row {
        color: black !important;
    }
    
    .devis-totals .total-row.ttc {
        color: black !important;
        border-top: 2px solid black !important;
    }
}


/* Modal Styles */
.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.modal.hidden {
    display: none;
}
.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    width: 600px;
    max-width: 90vw;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-card-hover);
    border-bottom: 1px solid var(--border);
}
.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
}
.modal-body {
    padding: var(--spacing-lg);
}
.modal-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.modal-body li {
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}
.modal-body b {
    color: var(--primary);
    background-color: var(--bg-card-hover);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--border);
}


@media print { .child-row { display: none !important; } }

@media print { body * { visibility: hidden; } #print-view, #print-view * { visibility: visible; } #print-view { position: absolute; left: 0; top: 0; width: 100%; } @page { margin: 10mm; } }

/* Context Menu */
.context-menu {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 5px;
    box-shadow: var(--shadow-md);
    z-index: 10000;
    min-width: 200px;
}

.context-menu-item {
    padding: 8px 12px;
    cursor: pointer;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.context-menu-item:hover {
    background-color: var(--primary);
    color: white;
}