/* Project Friction - Main CSS */
/* Museum-quality digital exhibit styling */

:root {
    /* Color Palette */
    --color-primary: #2c3e50;
    --color-secondary: #34495e;
    --color-accent: #c0392b;
    --color-context: #d4a574;
    --color-rcaf: #3498db;
    --color-rcn: #2c3e50;
    --color-army: #27ae60;
    --color-legacy: #c0392b;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-light-gray: #f8f9fa;
    --color-gray: #dee2e6;
    --color-dark-gray: #6c757d;
    --color-black: #212529;
    
    /* Typography */
    --font-primary: 'Georgia', 'Times New Roman', serif;
    --font-secondary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 20px rgba(0,0,0,0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-light-gray);
    color: var(--color-black);
    overflow: hidden;
    height: 100vh;
    line-height: 1.6;
}

/* Layout Structure */
.app-container {
    display: flex;
    height: 100vh;
    position: relative;
}

/* Sidebar Styling */
.sidebar {
    width: 35%;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-normal);
    position: relative;
    order: 2;
}

.sidebar.collapsed {
    transform: translateX(370px);
}

.sidebar-toggle {
    position: absolute;
    left: -30px;
    top: 20px;
    width: 30px;
    height: 60px;
    background: var(--color-white);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 101;
    transition: background-color var(--transition-fast);
}

.sidebar-toggle:hover {
    background: var(--color-light-gray);
}

/* Header Styling */
.sidebar-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl);
    border-bottom: 3px solid var(--color-accent);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo {
    width: 45px;
    height: 45px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 600;
    font-size: 18px;
    font-family: var(--font-secondary);
}

.title h1 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.title p {
    font-size: 13px;
    opacity: 0.8;
    font-style: italic;
}

/* Navigation States */
.back-button {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-light-gray);
    border-bottom: 1px solid var(--color-gray);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    font-family: var(--font-secondary);
}

.back-button:hover {
    background: #e9ecef;
}

.back-button.hidden {
    display: none;
}

.back-button.show {
    display: flex;
}

/* Main Navigation */
.main-navigation {
    display: block;
    flex: 1;
    overflow-y: auto;
}

.main-navigation.hidden {
    display: none;
}

.nav-welcome {
    padding: var(--spacing-xl);
    background: var(--color-light-gray);
    border-bottom: 1px solid var(--color-gray);
}

.nav-welcome h2 {
    font-size: 18px;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-primary);
}

.nav-welcome p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-dark-gray);
    font-family: var(--font-secondary);
}

/* Quick Stats */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: var(--color-white);
}

.stat-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-light-gray);
    border-radius: var(--radius-md);
    border: 1px solid #e9ecef;
    transition: transform var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-number {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-rcaf);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-secondary);
}

.stat-label {
    font-size: 11px;
    color: var(--color-dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-secondary);
}

/* Navigation Areas */
.nav-areas {
    padding: var(--spacing-xl);
}

.nav-areas-title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
    font-family: var(--font-secondary);
}

/* Map Container */
.map-container {
    flex: 1;
    position: relative;
    background: var(--color-secondary);
    order: 1;
}

#map {
    width: 100%;
    height: 100%;
}

/* Footer */
.sidebar-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-light-gray);
    border-top: 1px solid var(--color-gray);
    font-size: 12px;
    color: var(--color-dark-gray);
    text-align: center;
    font-family: var(--font-secondary);
}

.sidebar-footer a {
    color: var(--color-rcaf);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.sidebar-footer a:hover {
    color: var(--color-primary);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.show {
    display: block !important;
}

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

.font-secondary {
    font-family: var(--font-secondary);
}

.font-primary {
    font-family: var(--font-primary);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow);
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
    color: var(--color-primary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray);
    border-top: 4px solid var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

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

.loading-content h3 {
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-primary);
}

.loading-content p {
    font-size: 14px;
    color: var(--color-dark-gray);
    font-family: var(--font-secondary);
}

/* Focus and Accessibility */
*:focus {
    outline: 2px solid var(--color-rcaf);
    outline-offset: 2px;
}

button:focus,
[role="button"]:focus {
    outline: 2px solid var(--color-rcaf);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .sidebar-toggle,
    .map-container,
    .back-button {
        display: none !important;
    }
    
    .sidebar {
        width: 100%;
        transform: none;
        box-shadow: none;
    }
    
    .app-container {
        display: block;
    }
    
    body {
        overflow: visible;
        height: auto;
    }
}