mobile-ux.css

/* 
   ==========================================================================
   📱 TECHSTACK GLOBAL - MOBILE PERFORMANCE & UX UPGRADE (Phase 2)
   ==========================================================================
   Objective: High-readability, fluid-scaling, and premium touch interaction.
   GSD+HERALD Strategy: High Efficiency, Responsive Asset & Layout Deployment.
   ==========================================================================
*/

:root {
    color-scheme: dark;
    --site-side-padding-mobile: 1.25rem;
    --base-font-size-mobile: 16px;
    --line-height-mobile: 1.7;
    --touch-target-min: 44px;
}

/* 🚀 PERFORMANCE & RENDERING OPTIMIZATIONS */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 📱 MOBILE-FIRST READABILITY (Up to 768px) */
@media screen and (max-width: 768px) {
    body {
        font-size: var(--base-font-size-mobile);
        line-height: var(--line-height-mobile);
        color: #e2e8f0;
        /* Slightly softer for reduced eye strain */
    }

    h1,
    h2,
    h3,
    h4 {
        letter-spacing: -0.025em;
        line-height: 1.25;
    }

    /* FLUID HEADINGS - Using clamp for perfect scaling */
    h1 {
        font-size: clamp(1.75rem, 8vw, 2.25rem);
    }

    h2 {
        font-size: clamp(1.5rem, 6vw, 1.85rem);
    }

    h3 {
        font-size: clamp(1.25rem, 5vw, 1.5rem);
    }

    /* CONTENT SPACING */
    .container {
        padding-left: var(--site-side-padding-mobile) !important;
        padding-right: var(--site-side-padding-mobile) !important;
        width: 100% !important;
        max-width: 100% !important;
    }

    /* TOUCH OPTIMIZATIONS */
    .btn,
    button,
    .nav-links a,
    .read-more,
    .hero-read-btn,
    .view-review-cta {
        min-height: var(--touch-target-min);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.75rem 1.25rem;
    }

    /* 📱 GRID REFINEMENT */
    .blog-grid,
    .affiliate-grid,
    .category-grid,
    .audience-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 1.25rem !important;
    }

    .article-container {
        display: flex !important;
        flex-direction: column !important;
        gap: 3rem !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .sticky-sidebar {
        width: 100% !important;
        position: static !important;
        order: 2; /* Sidebar after content on mobile */
    }

    .post-body {
        width: 100% !important;
        order: 1;
    }

    .blog-card,
    .glass-card {
        padding: 1.5rem !important;
        margin-bottom: 0 !important;
    }

    /* NAVIGATION UX */
    .nav-links {
        padding: 1.5rem !important;
        gap: 0.5rem !important;
        background: rgba(15, 23, 42, 0.98) !important;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        font-size: 1.15rem !important;
        padding: 0.85rem 1rem !important;
        width: 100%;
        text-align: left !important;
        border-radius: 8px;
        transition: background 0.2s ease;
    }

    .nav-links a:active {
        background: rgba(255, 255, 255, 0.05);
    }

    /* 📊 REFINEMENT: Comparison Tables & Data */
    .comparison-table-wrapper,
    .table-responsive,
    .specs-table-container {
        margin: 1.5rem calc(var(--site-side-padding-mobile) * -1) !important;
        padding: 0 var(--site-side-padding-mobile) !important;
        border-radius: 0 !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
    }

    .comparison-table,
    .specs-table {
        min-width: 600px;
        /* Force scroll for readability */
        font-size: 0.85rem !important;
        border-collapse: collapse !important;
    }

    /* ARTICLE BODY HYGIENE */
    .post-body p {
        margin-bottom: 1.75rem !important;
        letter-spacing: 0.01em !important;
    }

    .post-body h2 {
        margin-top: 2.5rem !important;
        padding-top: 1.5rem !important;
        margin-bottom: 1rem !important;
    }

    /* 📸 IMAGE RENDERING */
    .post-hero-img,
    .post-body-img {
        margin: 1.5rem 0 !important;
        width: 100% !important;
        height: auto !important;
        aspect-ratio: auto;
        object-fit: cover;
    }

    /* 📦 AMAZON STACK / PRODUCT THUMBNAILS (Reverting to Live Proportions) */
    .product-thumbnail-wrapper {
        width: 100% !important;
        height: 200px !important;
        margin: 0 !important;
        background: white !important;
        /* Original clean white for products */
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        overflow: hidden !important;
        border-radius: 8px !important;
        margin-bottom: 1rem !important;
    }

    .product-thumbnail {
        width: 100% !important;
        height: 100% !important;
        object-fit: contain !important;
        padding: 1.25rem !important;
        /* Proper framing */
        transition: transform 0.3s ease;
    }

    .product-item {
        display: flex !important;
        flex-direction: column !important;
        text-align: left !important;
    }

    .product-info {
        width: 100% !important;
    }

    /* FOOTER READABILITY */
    .footer-content {
        gap: 3rem !important;
    }

    .footer-links h4 {
        color: var(--accent);
        text-transform: uppercase;
        font-size: 0.8rem;
        letter-spacing: 0.1em;
        margin-bottom: 1.5rem;
    }
}

/* 🖥️ DESKTOP PRESERVATION (Ensuring 0 overlap/breakage) */
@media screen and (min-width: 769px) {
    /* Explicitly ensuring no style bleed-up */
}