/* Brand variables */
:root {
    --brand-primary: #ff7700;
    --brand-secondary: #2563eb;
    --brand-on-primary: #ffffff;
    --brand-on-secondary: #ffffff;
}

/* Import Roadbook Timeline Styles */
@import url('roadbook-timeline.css');

/* Modal base */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: none; /* toggled to block in JS */
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 24px; /* margin around content on small screens */
}

.modal .modal-content {
    background: #fff;
    border-radius: 12px;
    width: min(1100px, 95vw);
    height: min(85vh, 900px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

/* Collapsible Categories */
.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: #f8fafc;
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.category-header:hover {
    background: #e2e8f0;
}

.category-header h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    margin: 0;
}

.category-header i.category-icon {
    font-size: 16px;
}

.category-header i.toggle-icon {
    font-size: 12px;
    color: #64748b;
    transition: transform 0.3s ease;
}

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

.category .component-list {
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    opacity: 1;
}

.category.collapsed .component-list {
    max-height: 0;
    opacity: 0;
}

/* Reset en basis styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    overflow: auto;
}

/* App container */
.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
}

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

.header-left i {
    margin-right: 0.5rem;
    color: #ffd700;
}

.header-right {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    filter: brightness(0.95);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* Outline variant tied to brand color when .outline is used */
.btn.outline {
    background: transparent;
    color: var(--brand-primary);
    border: 2px solid var(--brand-primary);
}
.btn.outline:hover {
    filter: brightness(0.95);
}

/* App body */
.app-body {
    flex: 1;
    display: flex;
    overflow: hidden; /* side panels manage their own scroll; center gets its own below */
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: white;
    border-right: 1px solid #e0e0e0;
    padding: 1.5rem;
    overflow-y: auto;
    box-shadow: 2px 0 10px rgba(0,0,0,0.05);
}

/* Properties panel */
.properties-panel {
    width: 320px;
    background: #ffffff;
    border-left: 1px solid #e0e0e0;
    padding: 1.5rem;
    overflow-y: auto;
    box-shadow: -2px 0 10px rgba(0,0,0,0.05);
}

.sidebar h3 {
    color: #333;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.category {
    margin-bottom: 2rem;
}

.category h4 {
    color: #666;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    font-weight: 600;
}

.component-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.component-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: #f8f9fa;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: grab;
    transition: all 0.3s ease;
    user-select: none;
    -webkit-user-select: none; /* Safari */
}

.component-item:hover {
    background: #e3f2fd;
    border-color: #2196F3;
    transform: translateX(4px);
}

.component-item:active {
    cursor: grabbing;
}

.component-item i {
    color: #2196F3;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.component-item span {
    font-weight: 500;
    color: #333;
}

/* Canvas area */
.canvas-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #f0f2f5;
    overflow-y: auto; /* allow vertical scrolling in the main work area */
}

.canvas-header {
    background: white;
    padding: 1rem 2rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: center;
}

.device-selector {
    display: flex;
    gap: 0.5rem;
    background: #f5f5f5;
    padding: 0.25rem;
    border-radius: 8px;
}

.device-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    color: #666;
    transition: all 0.3s ease;
}

.device-btn.active,
.device-btn:hover {
    background: white;
    color: #2196F3;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.canvas-wrapper {
    padding: 24px;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: visible;        /* allow edge-to-edge sections to be zichtbaar */
    overflow-y: auto;           /* scroll vertically when content grows */
}

.canvas {
    background: #fff;
    border-radius: 12px;
    min-height: 600px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    position: relative;        /* containing block for absolute children */
    overflow-x: visible;        /* allow full-bleed sections to break out */
    width: 1100px;             /* sensible default working width for desktop */
    max-width: 100%;
}

.modal-header {
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.3rem;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: #f5f5f5;
    color: #333;
}

.modal-body {
    flex: 1;
    padding: 1rem;
}

#previewFrame {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Responsive */
@media (max-width: 1200px) {
    .sidebar {
        width: 250px;
    }
    
    .properties-panel {
        width: 250px;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
    }
    
    .header-left h1 {
        font-size: 1.2rem;
    }
    
    .sidebar {
        width: 200px;
        padding: 1rem;
    }
    
    .properties-panel {
        width: 200px;
        padding: 1rem;
    }
}