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

.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;
}

/* CSS Animations */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    :root {
        --sidebar-gap: 16px;
    }
    
    .sidebar {
        position: fixed;
        top: calc(60px + var(--sidebar-gap));
        left: 0;
        height: calc(100vh - 60px - var(--sidebar-gap) - 56px);
        z-index: 60;
        border-radius: 0;
        border-top-right-radius: var(--radius-2xl);
        border-bottom-right-radius: var(--radius-2xl);
    }
    
    .sidebar[data-state="collapsed"] {
        transform: translateX(calc(-100% + var(--sidebar-width-collapsed)));
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .nav-tooltip {
        display: none;
    }
    
    .mobile-hidden {
        display: none;
    }
}

@media (max-width: 768px) {
    .main-content {
        margin: var(--space-lg);
    }
    
    .top-nav {
        padding: var(--space-sm);
    }
    

}

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

/* Enhanced focus styles for accessibility */
.nav-item:focus-visible,
.settings-item:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.3) !important;
}

/* Print Styles */
@media print {
    .sidebar,
    .top-nav {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
        padding: 0;
    }
}