/* Responsive Design - Clean & Compatible */

/* Desktop Layout (default) */
.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    flex-shrink: 0;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Mobile Layout */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        z-index: 999;
        transition: left 0.3s ease;
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        width: 100%;
        margin-left: 0;
    }
    
    /* Mobile menu toggle */
    button.mobile-menu-toggle {
        display: flex !important;
        position: fixed !important;
        top: 1rem !important;
        left: 1rem !important;
        z-index: 1000 !important;
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
    }
    
    /* Sidebar overlay */
    .sidebar-overlay {
        display: none !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
        background-color: rgba(0, 0, 0, 0.5) !important;
        z-index: 998 !important;
        pointer-events: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    .sidebar-overlay.active {
        display: block !important;
        pointer-events: auto !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* Content adjustments */
    .content {
        padding: 1rem !important;
    }
    
    .header {
        padding: 1rem !important;
    }
    
    .header h1 {
        font-size: 1.25rem !important;
    }
    
    /* Table responsive */
    table {
        font-size: 0.875rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
    }
    
    /* Stack table on very small screens */
    @media (max-width: 480px) {
        table, thead, tbody, th, td, tr {
            display: block;
        }
        
        thead tr {
            position: absolute;
            top: -9999px;
            left: -9999px;
        }
        
        tr {
            border: 1px solid #e2e8f0;
            margin-bottom: 0.5rem;
            border-radius: 0.5rem;
        }
        
        td {
            border: none;
            position: relative;
            padding-left: 50%;
            text-align: left;
        }
        
        td:before {
            content: attr(data-label) ": ";
            position: absolute;
            left: 0.5rem;
            width: 45%;
            font-weight: 600;
        }
    }
}

/* Desktop specific overrides */
@media (min-width: 769px) {
    .main-content {
        margin-left: 0;
    }
    
    /* Hide mobile elements on desktop */
    button.mobile-menu-toggle {
        display: none !important;
    }
    
    .sidebar-overlay {
        display: none !important;
    }
    
    /* Ensure proper desktop layout */
    .container {
        display: flex;
        flex-direction: row;
    }
    
    .sidebar {
        position: static;
        width: 250px;
        height: auto;
        left: auto;
    }
}

/* Touch-friendly improvements */
@media (max-width: 768px) {
    .btn, .form-control, select, input, textarea {
        min-height: 44px;
    }
    
    /* Prevent zoom on iOS Safari */
    input[type="text"], 
    input[type="password"], 
    input[type="email"], 
    input[type="tel"],
    textarea {
        font-size: 16px !important;
    }
}

/* Print styles */
@media print {
    .sidebar,
    button.mobile-menu-toggle,
    .sidebar-overlay {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    .container {
        display: block !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .form-control {
        border: 2px solid currentColor;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --border-color: #404040;
    }
}