/*
* Responsive Icon Optimization
* Enhanced for Multi-Resolution Support (4K to 720p)
*/

/* Icon Container Responsive Adjustments */
.icon-container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Responsive Icon Sizing System */
.icon-xs {
    width: calc(16px * var(--icon-scale-base));
    height: calc(16px * var(--icon-scale-base));
    font-size: calc(0.875rem * var(--icon-scale-base));
}

.icon-sm {
    width: calc(24px * var(--icon-scale-base));
    height: calc(24px * var(--icon-scale-base));
    font-size: calc(1rem * var(--icon-scale-base));
}

.icon-md {
    width: calc(32px * var(--icon-scale-base));
    height: calc(32px * var(--icon-scale-base));
    font-size: calc(1.125rem * var(--icon-scale-base));
}

.icon-lg {
    width: calc(48px * var(--icon-scale-base));
    height: calc(48px * var(--icon-scale-base));
    font-size: calc(1.5rem * var(--icon-scale-base));
}

.icon-xl {
    width: calc(64px * var(--icon-scale-base));
    height: calc(64px * var(--icon-scale-base));
    font-size: calc(2rem * var(--icon-scale-base));
}

.icon-2xl {
    width: calc(80px * var(--icon-scale-base));
    height: calc(80px * var(--icon-scale-base));
    font-size: calc(2.5rem * var(--icon-scale-base));
}

.icon-3xl {
    width: calc(96px * var(--icon-scale-base));
    height: calc(96px * var(--icon-scale-base));
    font-size: calc(3rem * var(--icon-scale-base));
}

/* Enhanced Icon Animations for High DPI */
@keyframes iconPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0.7);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(var(--primary-rgb), 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(var(--primary-rgb), 0);
    }
}

@keyframes iconFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes iconRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Icon Animation Classes */
.icon-pulse {
    animation: iconPulse 2s infinite;
}

.icon-float {
    animation: iconFloat 3s ease-in-out infinite;
}

.icon-rotate {
    animation: iconRotate 2s linear infinite;
}

/* Responsive Icon Grid */
.icon-grid {
    display: grid;
    gap: calc(20px * var(--icon-scale-base));
    align-items: center;
}

.icon-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.icon-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.icon-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.icon-grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.icon-grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* Responsive Breakpoints for Icon Grid */
@media (max-width: 1200px) {
    .icon-grid-6 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .icon-grid-5,
    .icon-grid-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .icon-grid-4,
    .icon-grid-5,
    .icon-grid-6 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .icon-grid-3,
    .icon-grid-4,
    .icon-grid-5,
    .icon-grid-6 {
        grid-template-columns: 1fr;
    }
}

/* High DPI Icon Enhancements */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .icon-container {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
    
    .feature-icon,
    .service-icon,
    .value-icon {
        filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    }
}

/* Ultra High DPI Icon Enhancements */
@media (-webkit-min-device-pixel-ratio: 3), (min-resolution: 288dpi) {
    .icon-container {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
    
    .feature-icon,
    .service-icon,
    .value-icon {
        filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.15));
    }
}

/* Icon Loading States */
.icon-loading {
    position: relative;
    overflow: hidden;
}

.icon-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: iconShimmer 1.5s infinite;
}

@keyframes iconShimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Icon Accessibility */
.icon-container[aria-label] {
    cursor: help;
}

.icon-container[aria-label]:hover::after {
    content: attr(aria-label);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 1000;
    pointer-events: none;
}

/* Icon Focus States for Accessibility */
.icon-container:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Print Styles for Icons */
@media print {
    .icon-container {
        break-inside: avoid;
    }
    
    .feature-icon,
    .service-icon,
    .value-icon {
        filter: none;
        box-shadow: none;
    }
    
    .icon-pulse,
    .icon-float,
    .icon-rotate {
        animation: none;
    }
}

/* Dark Mode Icon Adjustments */
@media (prefers-color-scheme: dark) {
    .icon-container {
        filter: brightness(1.1);
    }
    
    .feature-icon,
    .service-icon,
    .value-icon {
        filter: brightness(1.1) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .icon-pulse,
    .icon-float,
    .icon-rotate {
        animation: none;
    }
    
    .feature-icon,
    .service-icon,
    .value-icon {
        transition: none;
    }
    
    .icon-loading::before {
        animation: none;
    }
}

/* Container Responsive Improvements */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
    box-sizing: border-box;
}

/* Responsive Typography Scale */
.text-xs {
    font-size: calc(0.75rem * var(--font-scale-base));
}

.text-sm {
    font-size: calc(0.875rem * var(--font-scale-base));
}

.text-base {
    font-size: calc(1rem * var(--font-scale-base));
}

.text-lg {
    font-size: calc(1.125rem * var(--font-scale-base));
}

.text-xl {
    font-size: calc(1.25rem * var(--font-scale-base));
}

.text-2xl {
    font-size: calc(1.5rem * var(--font-scale-base));
}

.text-3xl {
    font-size: calc(1.875rem * var(--font-scale-base));
}

.text-4xl {
    font-size: calc(2.25rem * var(--font-scale-base));
}

.text-5xl {
    font-size: calc(3rem * var(--font-scale-base));
}

/* Responsive Spacing */
.space-xs {
    margin: calc(0.25rem * var(--icon-scale-base));
    padding: calc(0.25rem * var(--icon-scale-base));
}

.space-sm {
    margin: calc(0.5rem * var(--icon-scale-base));
    padding: calc(0.5rem * var(--icon-scale-base));
}

.space-md {
    margin: calc(1rem * var(--icon-scale-base));
    padding: calc(1rem * var(--icon-scale-base));
}

.space-lg {
    margin: calc(1.5rem * var(--icon-scale-base));
    padding: calc(1.5rem * var(--icon-scale-base));
}

.space-xl {
    margin: calc(2rem * var(--icon-scale-base));
    padding: calc(2rem * var(--icon-scale-base));
}

/* Responsive Border Radius */
.rounded-sm {
    border-radius: calc(0.125rem * var(--icon-scale-base));
}

.rounded {
    border-radius: calc(0.25rem * var(--icon-scale-base));
}

.rounded-md {
    border-radius: calc(0.375rem * var(--icon-scale-base));
}

.rounded-lg {
    border-radius: calc(0.5rem * var(--icon-scale-base));
}

.rounded-xl {
    border-radius: calc(0.75rem * var(--icon-scale-base));
}

.rounded-2xl {
    border-radius: calc(1rem * var(--icon-scale-base));
}

.rounded-full {
    border-radius: 50%;
}