/**
 * Layout Styles - Structure, Panels, Containers
 * Defines the overall application layout
 */

/* Main Layout */
body {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar (Left Panel) */
.sidebar {
    width: 320px;
    height: 100vh;
    background: var(--white);
    border-right: 2px solid var(--light-gray);
    overflow-y: auto;
    flex-shrink: 0;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.05);
}

/* Main Content Area */
.main-content {
    flex: 1;
    height: 100vh;
    overflow-y: auto;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #fef9f2 0%, #f4f1e8 100%);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header Section */
.app-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.app-header h1 {
    margin: 0;
    color: #7ba8c5;
}

/* Control Groups in Sidebar */
.control-group {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--light-gray);
}

.control-group h3 {
    margin-bottom: var(--spacing-md);
    color: var(--dark-color);
    font-size: var(--font-size-md);
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-group {
    margin: var(--spacing-sm) 0;
}

.input-group label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--gray-color);
    margin-bottom: 3px;
    font-weight: 500;
}

/* Surface Panel - Reusable Component */
.surface-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    transition: border-color var(--transition-normal);
}

.surface-panel:hover {
    border-color: var(--primary-light);
}

.surface-panel.wall-panel {
    border-left: 4px solid #b8e6d5;
}

.surface-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--light-gray);
}

.surface-title {
    font-size: var(--font-size-lg);
    color: #495057;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Control Panel within Surface */
.surface-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.control-section {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.control-section label {
    font-size: var(--font-size-sm);
    color: var(--gray-color);
    font-weight: 500;
}

.control-actions {
    margin-left: auto;
    display: flex;
    gap: 8px;
}

/* Surface Content Layout - Side by Side */
.surface-content-layout {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

/* Drawing Area */
.drawing-area {
    position: relative;
    flex: 1;
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    overflow: visible;
    display: inline-block;
}

/* Statistics Panel */
.stats-panel {
    width: 280px;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #495057;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid #dee2e6;
    flex-shrink: 0;
    min-height: 500px;
    display: flex;
    flex-direction: column;
}

.stats-panel h3 {
    color: #495057;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
    font-weight: 600;
}

.stat-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: var(--font-size-sm);
    border: 1px solid rgba(222, 226, 230, 0.5);
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    border: 2px solid #dee2e6;
    flex-shrink: 0;
}

/* Summary Section */
.summary-section {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 3px solid #a8d8ea;
}

.summary-section h2 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

/* Furniture Palette */
.furniture-palette {
    padding: var(--spacing-md);
}

.furniture-category {
    margin-bottom: var(--spacing-sm);
}

.category-header {
    padding: var(--spacing-sm);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background-color var(--transition-fast);
}

.category-header:hover {
    background: #dfe6e9;
}

.category-header.collapsed {
    border-radius: var(--radius-md);
}

.category-content {
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.category-content.collapsed {
    display: none;
}

/* Furniture items in the sidebar palette */
.furniture-palette .furniture-item {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: move;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.furniture-palette .furniture-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.furniture-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.furniture-label {
    font-size: var(--font-size-sm);
    color: var(--gray-color);
}

/* Toggle Icon */
.toggle-icon {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

/* Info Panels */
.info-panel {
    margin-top: var(--spacing-md);
    border-top: 1px solid var(--light-gray);
    padding-top: var(--spacing-md);
}

.info-panel-header {
    cursor: pointer;
    padding: var(--spacing-sm);
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background-color var(--transition-fast);
}

.info-panel-header:hover {
    background: #dfe6e9;
}

.info-panel-content {
    padding: var(--spacing-md);
}

.info-panel-content.collapsed {
    display: none;
}

/* Legend */
.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 6px 0;
    font-size: var(--font-size-sm);
}

.legend-box {
    width: 20px;
    height: 20px;
    border: 2px solid;
    border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 1200px) {
    .sidebar {
        width: 280px;
    }

    .stats-panel {
        width: 220px;
    }
}

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

    .sidebar {
        width: 100%;
        height: auto;
        max-height: 40vh;
        border-right: none;
        border-bottom: 2px solid var(--light-gray);
    }

    .main-content {
        height: 60vh;
        padding: var(--spacing-md);
    }

    /* Stack surface content vertically on mobile */
    .surface-content-layout {
        flex-direction: column;
    }

    .stats-panel {
        width: 100%;
    }
}