/* Layout System - Comprehensive Navigation & Layout Styles */

/* Application Layout */
.app-layout {
    min-height: 100vh;
    display: flex;
}

.app-layout.auth-layout {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform var(--transition-base);
}

.sidebar.dashboard-sidebar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.sidebar.admin-sidebar {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.sidebar-logo .material-symbols-outlined {
    font-size: 2rem;
}

.admin-badge {
    background: #e74c3c;
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
}

/* Navigation Menu */
.nav-menu {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

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

.menu-section:last-child {
    margin-bottom: 0;
}

.menu-title {
    padding: 0 1.5rem 0.5rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding-left: 2rem;
}

.nav-menu a.active {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-right: 3px solid rgba(255, 255, 255, 0.8);
}

.nav-menu a .material-symbols-outlined {
    font-size: 1.25rem;
    opacity: 0.8;
}

.nav-menu a:hover .material-symbols-outlined,
.nav-menu a.active .material-symbols-outlined {
    opacity: 1;
}

.menu-counter {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 1.5rem;
    text-align: center;
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-base);
}

.main-content.no-sidebar {
    margin-left: 0;
}

/* Top Bar */
.top-bar {
    background: var(--bg-primary);
    height: var(--navbar-height);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.breadcrumb {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-bell {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
    color: var(--text-secondary);
}

.notification-bell:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.notification-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
    min-width: 1.25rem;
    text-align: center;
    line-height: 1;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.user-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.logout-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logout-btn:hover {
    background: #dc2626;
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 2rem;
    background: var(--bg-secondary);
}

.page-header {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-header h1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
    color: var(--text-primary);
}

.page-header h1 .material-symbols-outlined {
    font-size: 2rem;
    color: var(--primary-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.stat-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.users { background: rgba(37, 99, 235, 0.1); color: var(--primary-color); }
.stat-icon.patients { background: rgba(16, 185, 129, 0.1); color: var(--success-color); }
.stat-icon.appointments { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.stat-icon.revenue { background: rgba(34, 197, 94, 0.1); color: #22c55e; }
.stat-icon.system { background: rgba(168, 85, 247, 0.1); color: #a855f7; }

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-change {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

.stat-change .material-symbols-outlined {
    font-size: 1rem;
}

/* Quick Actions */
.quick-actions {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.quick-actions h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.action-btn {
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.action-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.action-btn.secondary:hover {
    background: var(--secondary-dark);
}

/* Accessibility Toolbar */
.accessibility-toolbar {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
}

.a11y-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.a11y-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.a11y-menu {
    position: absolute;
    top: 60px;
    right: 0;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    border: 1px solid var(--border-color);
    z-index: 10001;
}

.a11y-menu[aria-hidden="true"] {
    display: none;
}

.a11y-menu-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.a11y-menu-header h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-primary);
}

.a11y-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.25rem;
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.a11y-close:hover {
    background: var(--bg-secondary);
}

.a11y-options {
    padding: 0.5rem 0;
}

.a11y-option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-fast);
    color: var(--text-primary);
}

.a11y-option:hover,
.a11y-option:focus {
    background: var(--bg-secondary);
}

.a11y-option .material-symbols-outlined {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.a11y-language-selector {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.a11y-language-selector label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Accessibility States */
.high-contrast {
    --primary-color: #0000FF;
    --primary-dark: #000080;
    --text-primary: #000000;
    --text-secondary: #000000;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F0F0F0;
    --border-color: #000000;
}

.high-contrast * {
    border-color: #000000 !important;
}

.high-contrast a {
    color: #0000FF !important;
    text-decoration: underline !important;
}

.high-contrast button {
    border: 2px solid #000000 !important;
}

.large-text {
    font-size: 118% !important;
}

.large-text h1 { font-size: 3rem; }
.large-text h2 { font-size: 2.5rem; }
.large-text h3 { font-size: 2rem; }
.large-text .btn { padding: 0.75rem 1.25rem; font-size: 1rem; }

.reduced-motion * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

.keyboard-only *:focus {
    outline: 3px solid var(--primary-color) !important;
    outline-offset: 2px !important;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip Links */
.skip-links {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10000;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* Currency Display */
.currency {
    font-weight: 600;
}

.currency.cdf::after {
    content: " FC";
    color: var(--text-secondary);
    font-weight: normal;
}

.currency.usd::before {
    content: "$";
}

.currency.eur::before {
    content: "€";
}

/* Language Selector */
.language-selector {
    position: relative;
    display: inline-block;
}

.language-current {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
    text-decoration: none;
}

.language-current:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    margin-top: 0.25rem;
}

.language-dropdown[aria-hidden="true"] {
    display: none;
}

.language-option {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    text-decoration: none;
}

.language-option:hover,
.language-option:focus {
    background: var(--bg-secondary);
}

.language-option.active {
    background: var(--primary-color);
    color: white;
}

/* Focus Management */
.focus-trap {
    position: relative;
}

/* High Contrast Mode Overrides */
@media (forced-colors: active) {
    .btn {
        border: 1px solid !important;
    }
    
    .card {
        border: 1px solid !important;
    }
    
    .sidebar {
        border-right: 1px solid !important;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    
    :root {
        --sidebar-width: 240px;
    }
    
    .accessibility-toolbar {
        top: 10px;
        right: 10px;
    }
    
    .a11y-btn {
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .top-bar {
        padding: 0 1rem;
    }
    
    .content-area {
        padding: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .user-info {
        display: none;
    }
    
    .top-bar-right {
        gap: 0.5rem;
    }
}

/* Loading States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

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

.loading-content .spinner {
    margin-bottom: 1rem;
}

/* Authentication Layout */
.auth-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
}

.auth-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.auth-logo {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.auth-header p {
    opacity: 0.9;
    margin: 0;
}

.auth-form {
    padding: 2rem;
}

.demo-note {
    background: var(--bg-secondary);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.demo-note strong {
    color: var(--text-primary);
}

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
}