/* Responsive Design Components */

/* Container Queries (Modern browsers) */
@container (max-width: 768px) {
    .container-responsive {
        padding: var(--gap-sm);
    }
}

/* Flexible Grid System */
.grid-responsive {
    display: grid;
    gap: var(--gap-lg);
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.grid-responsive.dense {
    grid-auto-flow: dense;
}

.grid-responsive.masonry {
    grid-template-rows: masonry; /* Future CSS feature */
}

/* Responsive Typography */
.text-responsive {
    font-size: clamp(0.875rem, 2.5vw, 1.125rem);
    line-height: 1.6;
}

.heading-responsive {
    font-size: clamp(1.5rem, 4vw, 3rem);
    line-height: 1.2;
}

/* Responsive Spacing */
.space-responsive {
    padding: clamp(1rem, 3vw, 2rem);
    margin: clamp(0.5rem, 2vw, 1.5rem) 0;
}

/* Mobile-First Breakpoints */
.mobile-hidden {
    display: none;
}

.desktop-hidden {
    display: block;
}

/* Tablet Styles */
@media (min-width: 768px) {
    .tablet-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tablet-flex {
        display: flex;
        gap: var(--gap-lg);
    }
    
    .mobile-hidden {
        display: block;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    .desktop-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .desktop-sidebar {
        grid-template-columns: 300px 1fr;
    }
    
    .desktop-hidden {
        display: none;
    }
}

/* Large Desktop */
@media (min-width: 1440px) {
    .large-desktop-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .large-desktop-container {
        max-width: 1400px;
        margin: 0 auto;
    }
}

/* Touch-Friendly Interactions */
@media (hover: none) and (pointer: coarse) {
    .touch-friendly {
        min-height: 44px;
        min-width: 44px;
        padding: 12px;
    }
    
    .hover-effects:hover {
        transform: none;
    }
}

/* Print Styles */
@media print {
    .print-hidden {
        display: none !important;
    }
    
    .print-page-break {
        page-break-before: always;
    }
    
    .print-avoid-break {
        break-inside: avoid;
    }
    
    .print-optimized {
        color: black !important;
        background: white !important;
        box-shadow: none !important;
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .high-dpi-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .motion-reduce {
        animation: none !important;
        transition: none !important;
    }
    
    .motion-reduce * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Dark Mode Preferences */
@media (prefers-color-scheme: dark) {
    .auto-dark {
        background: var(--base);
        color: var(--text);
    }
}

/* High Contrast */
@media (prefers-contrast: high) {
    .high-contrast {
        border: 2px solid currentColor;
        background: transparent;
    }
}

/* Focus Management */
.focus-visible:focus {
    outline: 2px solid var(--blue, #667eea);
    outline-offset: 2px;
}

/* Skip Links for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--blue, #667eea);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top 0.3s ease;
}

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

/* Landscape Mobile Optimization */
@media (max-height: 500px) and (orientation: landscape) {
    .landscape-optimized {
        padding: var(--gap-xs);
    }
    
    .landscape-header {
        padding: var(--gap-sm);
    }
}