/* 
========================================
MOBILE COMPACT ENHANCEMENT SYSTEM
========================================
Ultra-compact styles for small phone optimization
*/

/* ===== ULTRA-COMPACT MOBILE VARIABLES ===== */
:root {
    /* Mobile-specific compact spacing */
    --mobile-spacing-micro: clamp(0.125rem, 0.2vw, 0.25rem);
    --mobile-spacing-tiny: clamp(0.25rem, 0.4vw, 0.375rem);
    --mobile-spacing-small: clamp(0.375rem, 0.8vw, 0.5rem);
    --mobile-spacing-base: clamp(0.5rem, 1.2vw, 0.75rem);
    
    /* Mobile-specific font sizes */
    --mobile-text-micro: clamp(0.5rem, 1vw, 0.625rem);
    --mobile-text-tiny: clamp(0.625rem, 1.2vw, 0.75rem);
    --mobile-text-small: clamp(0.75rem, 1.5vw, 0.875rem);
    --mobile-text-base: clamp(0.875rem, 2vw, 1rem);
    
    /* Mobile-specific heights */
    --mobile-nav-height: clamp(40px, 8vw, 50px);
    --mobile-card-image-height: clamp(80px, 15vw, 120px);
    --mobile-button-height: clamp(32px, 6vw, 40px);
}

/* ===== ULTRA-COMPACT NAVIGATION ===== */
@media (max-width: 480px) {
    .navbar {
        padding: var(--mobile-spacing-tiny) 0;
        min-height: var(--mobile-nav-height);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    }
    
    .nav-container {
        padding: 0 var(--mobile-spacing-small);
        gap: var(--mobile-spacing-small);
    }
    
    .nav-logo {
        font-size: var(--mobile-text-base);
        gap: var(--mobile-spacing-tiny);
    }
    
    .nav-logo img {
        height: clamp(24px, 5vw, 32px);
        width: auto;
    }
    
    .nav-toggle {
        padding: var(--mobile-spacing-tiny);
        font-size: var(--mobile-text-base);
        min-height: var(--mobile-button-height);
        min-width: var(--mobile-button-height);
        border-radius: var(--radius-xs);
    }
    
    .mobile-menu .nav-link {
        padding: var(--mobile-spacing-base);
        font-size: var(--mobile-text-small);
        min-height: 44px;
    }
}

/* ===== ULTRA-COMPACT CARDS ===== */
@media (max-width: 480px) {
    .card,
    .product-card,
    .sale-card {
        border-radius: var(--radius-xs);
        margin-bottom: var(--mobile-spacing-small);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
        overflow: hidden;
    }
    
    .card-header,
    .product-card-header,
    .sale-card-header {
        padding: var(--mobile-spacing-small);
        font-size: var(--mobile-text-tiny);
        font-weight: 600;
        background: rgba(0, 0, 0, 0.02);
    }
    
    .card-body,
    .product-card-body,
    .sale-card-body {
        padding: var(--mobile-spacing-small);
        gap: var(--mobile-spacing-tiny);
        display: flex;
        flex-direction: column;
    }
    
    .card-title,
    .product-card-title,
    .sale-card-title {
        font-size: var(--mobile-text-small);
        font-weight: 600;
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-tiny);
        color: var(--text-color);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .card-subtitle,
    .product-card-subtitle,
    .sale-card-subtitle {
        font-size: var(--mobile-text-tiny);
        color: var(--text-secondary);
        margin-bottom: var(--mobile-spacing-tiny);
        opacity: 0.8;
    }
    
    .card-text,
    .product-card-text,
    .sale-card-text {
        font-size: var(--mobile-text-tiny);
        line-height: 1.2;
        color: var(--text-secondary);
        margin-bottom: var(--mobile-spacing-small);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    .card-image,
    .product-card-image,
    .sale-card-image {
        height: var(--mobile-card-image-height);
        width: 100%;
        object-fit: cover;
        border-radius: 0;
        margin-bottom: var(--mobile-spacing-tiny);
    }
    
    .card-footer,
    .product-card-footer,
    .sale-card-footer {
        padding: var(--mobile-spacing-small);
        border-top: 1px solid var(--border-color);
        background: rgba(0, 0, 0, 0.01);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--mobile-spacing-small);
    }
    
    .card-price,
    .product-card-price,
    .sale-card-price {
        font-size: var(--mobile-text-small);
        font-weight: 700;
        color: var(--primary-color);
    }
    
    .card-actions,
    .product-card-actions,
    .sale-card-actions {
        display: flex;
        gap: var(--mobile-spacing-tiny);
        flex-wrap: wrap;
        margin-top: var(--mobile-spacing-tiny);
    }
    
    .card-btn,
    .product-card-btn,
    .sale-card-btn {
        padding: var(--mobile-spacing-tiny) var(--mobile-spacing-small);
        font-size: var(--mobile-text-tiny);
        font-weight: 500;
        min-height: var(--mobile-button-height);
        border-radius: var(--radius-xs);
        flex: 1;
        min-width: 70px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        touch-action: manipulation;
    }
}

/* ===== ULTRA-COMPACT GRID LAYOUTS ===== */
@media (max-width: 480px) {
    .products-grid,
    .sales-grid {
        grid-template-columns: 1fr;
        gap: var(--mobile-spacing-small);
        padding: var(--mobile-spacing-small);
    }
    
    /* Compact two-column option */
    .products-grid.compact-two-col,
    .sales-grid.compact-two-col {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--mobile-spacing-tiny);
    }
    
    .compact-two-col .card,
    .compact-two-col .product-card,
    .compact-two-col .sale-card {
        min-height: auto;
    }
    
    .compact-two-col .card-body,
    .compact-two-col .product-card-body,
    .compact-two-col .sale-card-body {
        padding: var(--mobile-spacing-tiny);
    }
    
    .compact-two-col .card-title,
    .compact-two-col .product-card-title,
    .compact-two-col .sale-card-title {
        font-size: var(--mobile-text-tiny);
        -webkit-line-clamp: 1;
        line-clamp: 1;
    }
    
    .compact-two-col .card-text,
    .compact-two-col .product-card-text,
    .compact-two-col .sale-card-text {
        font-size: var(--mobile-text-micro);
        -webkit-line-clamp: 1;
        line-clamp: 1;
    }
    
    .compact-two-col .card-image,
    .compact-two-col .product-card-image,
    .compact-two-col .sale-card-image {
        height: clamp(60px, 12vw, 90px);
    }
    
    .compact-two-col .card-btn,
    .compact-two-col .product-card-btn,
    .compact-two-col .sale-card-btn {
        font-size: var(--mobile-text-micro);
        padding: var(--mobile-spacing-micro) var(--mobile-spacing-tiny);
        min-height: 28px;
    }
}

/* ===== ULTRA-COMPACT FORMS ===== */
@media (max-width: 480px) {
    .form-group {
        margin-bottom: var(--mobile-spacing-small);
    }
    
    .form-control,
    input,
    textarea,
    select {
        padding: var(--mobile-spacing-small);
        font-size: var(--mobile-text-small);
        border-radius: var(--radius-xs);
        min-height: 40px;
    }
    
    .form-label {
        font-size: var(--mobile-text-tiny);
        font-weight: 600;
        margin-bottom: var(--mobile-spacing-tiny);
    }
    
    .btn {
        padding: var(--mobile-spacing-small) var(--mobile-spacing-base);
        font-size: var(--mobile-text-small);
        min-height: var(--mobile-button-height);
        border-radius: var(--radius-xs);
    }
    
    .btn-sm {
        padding: var(--mobile-spacing-tiny) var(--mobile-spacing-small);
        font-size: var(--mobile-text-tiny);
        min-height: 32px;
    }
}

/* ===== ULTRA-COMPACT TYPOGRAPHY ===== */
@media (max-width: 480px) {
    h1, .h1 { 
        font-size: clamp(1.2rem, 5vw, 1.5rem); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-base);
    }
    
    h2, .h2 { 
        font-size: clamp(1.1rem, 4.5vw, 1.3rem); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-small);
    }
    
    h3, .h3 { 
        font-size: var(--mobile-text-base); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-small);
    }
    
    h4, .h4 { 
        font-size: var(--mobile-text-small); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-tiny);
    }
    
    h5, .h5 { 
        font-size: var(--mobile-text-tiny); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-tiny);
    }
    
    h6, .h6 { 
        font-size: var(--mobile-text-micro); 
        line-height: 1.1;
        margin-bottom: var(--mobile-spacing-tiny);
    }
    
    p {
        font-size: var(--mobile-text-small);
        line-height: 1.3;
        margin-bottom: var(--mobile-spacing-small);
    }
    
    .text-micro { font-size: var(--mobile-text-micro); }
    .text-tiny { font-size: var(--mobile-text-tiny); }
}

/* ===== ULTRA-COMPACT UTILITIES ===== */
@media (max-width: 480px) {
    .container {
        padding-left: var(--mobile-spacing-small);
        padding-right: var(--mobile-spacing-small);
    }
    
    .row {
        margin-left: calc(var(--mobile-spacing-tiny) * -0.5);
        margin-right: calc(var(--mobile-spacing-tiny) * -0.5);
        gap: var(--mobile-spacing-tiny);
    }
    
    .col {
        padding-left: calc(var(--mobile-spacing-tiny) * 0.5);
        padding-right: calc(var(--mobile-spacing-tiny) * 0.5);
    }
    
    /* Compact margin utilities */
    .m-compact { margin: var(--mobile-spacing-tiny) !important; }
    .mt-compact { margin-top: var(--mobile-spacing-tiny) !important; }
    .mb-compact { margin-bottom: var(--mobile-spacing-tiny) !important; }
    .ml-compact { margin-left: var(--mobile-spacing-tiny) !important; }
    .mr-compact { margin-right: var(--mobile-spacing-tiny) !important; }
    
    /* Compact padding utilities */
    .p-compact { padding: var(--mobile-spacing-tiny) !important; }
    .pt-compact { padding-top: var(--mobile-spacing-tiny) !important; }
    .pb-compact { padding-bottom: var(--mobile-spacing-tiny) !important; }
    .pl-compact { padding-left: var(--mobile-spacing-tiny) !important; }
    .pr-compact { padding-right: var(--mobile-spacing-tiny) !important; }
    
    /* Hide/Show utilities for mobile */
    .mobile-hide { display: none !important; }
    .mobile-show { display: block !important; }
    .mobile-flex { display: flex !important; }
    .mobile-grid { display: grid !important; }
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
@media (max-width: 480px) {
    /* Optimize animations for mobile */
    .card,
    .product-card,
    .sale-card {
        transition: box-shadow 0.2s ease;
    }
    
    .card:hover,
    .product-card:hover,
    .sale-card:hover {
        transform: none; /* Disable transform on mobile for better performance */
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    }
    
    /* Optimize images for mobile */
    .card-image,
    .product-card-image,
    .sale-card-image {
        image-rendering: optimizeQuality;
    }
    
    /* Optimize scrolling */
    .mobile-scroll {
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
    }
    
    /* Reduce motion for mobile users who prefer it */
    @media (prefers-reduced-motion: reduce) {
        .card,
        .product-card,
        .sale-card,
        .btn,
        .nav-link {
            transition: none !important;
        }
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS FOR MOBILE ===== */
@media (max-width: 480px) {
    /* Improve focus indicators */
    .card:focus,
    .product-card:focus,
    .sale-card:focus,
    .btn:focus,
    .nav-link:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
    }
    
    /* Improve touch targets */
    .card,
    .product-card,
    .sale-card {
        -webkit-tap-highlight-color: rgba(212, 175, 55, 0.1);
    }
    
    /* Improve text contrast for small text */
    .card-text,
    .product-card-text,
    .sale-card-text {
        color: var(--text-color);
        opacity: 0.9;
    }
    
    /* Improve button accessibility */
    .card-btn,
    .product-card-btn,
    .sale-card-btn {
        position: relative;
        overflow: visible;
    }
    
    .card-btn:focus::after,
    .product-card-btn:focus::after,
    .sale-card-btn:focus::after {
        content: '';
        position: absolute;
        top: -2px;
        left: -2px;
        right: -2px;
        bottom: -2px;
        border: 2px solid var(--primary-color);
        border-radius: var(--radius-sm);
        pointer-events: none;
    }
}