/**
 * VENTLY .FANS - Material Design 3 with IKEA Colors
 * Mobile-First, Responsive, Sticky Footer
 */

:root {
    /* IKEA-Inspired Color Scheme */
    --md-sys-color-primary: #0051ba;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #d4e2ff;
    --md-sys-color-on-primary-container: #001b4a;
    
    --md-sys-color-secondary: #0051ba;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: #d4e2ff;
    
    --md-sys-color-accent: #ffda1a;
    --md-sys-color-on-accent: #000000;
    --md-sys-color-accent-container: #fff4b3;
    
    --md-sys-color-background: #f5f8fc;
    --md-sys-color-on-background: #1a1a1a;
    --md-sys-color-surface: #ffffff;
    --md-sys-color-on-surface: #1a1a1a;
    --md-sys-color-surface-variant: #e8edf4;
    --md-sys-color-on-surface-variant: #3d4a5c;
    
    --md-sys-color-outline: #7a8a9e;
    --md-sys-color-outline-variant: #c5cdd8;
    
    /* Typography */
    --md-font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Shape System */
    --md-shape-corner-small: 8px;
    --md-shape-corner-medium: 12px;
    --md-shape-corner-large: 16px;
    --md-shape-corner-extra-large: 28px;
    
    /* Elevation */
    --md-elevation-0: none;
    --md-elevation-1: 0px 1px 3px 1px rgba(0,0,0,0.08), 0px 1px 2px 0px rgba(0,0,0,0.12);
    --md-elevation-2: 0px 2px 6px 2px rgba(0,0,0,0.10), 0px 1px 2px 0px rgba(0,0,0,0.20);
    --md-elevation-3: 0px 4px 8px 3px rgba(0,0,0,0.10), 0px 2px 4px 0px rgba(0,0,0,0.20);
    
    /* Spacing */
    --md-space-1: 4px;
    --md-space-2: 8px;
    --md-space-3: 12px;
    --md-space-4: 16px;
    --md-space-5: 24px;
    --md-space-6: 32px;
    --md-space-7: 48px;
    --md-space-8: 64px;
}

/* Reset & Base - Prevent Zoom */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    font-family: var(--md-font-family);
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    width: 100%;
}

/* Prevent zoom on input focus for iOS */
input, textarea, select, button {
    font-size: 16px !important;
    -webkit-appearance: none;
    appearance: none;
}

/* Disable text selection on touch */
* {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Allow text selection on specific elements */
p, h1, h2, h3, h4, h5, h6, .m3-product-description, .m3-detail-description {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* ===== HEADER / APP BAR ===== */
.m3-app-bar {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    padding: 0 var(--md-space-4);
    height: 60px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--md-elevation-2);
    flex-shrink: 0;
}

.m3-app-bar-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.m3-brand {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--md-sys-color-on-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--md-space-2);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.m3-brand i {
    font-size: 1.3rem;
}

.m3-brand span {
    background-color: var(--md-sys-color-accent);
    color: var(--md-sys-color-on-accent);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
}

/* Navigation */
.m3-navigation-drawer {
    display: flex;
    align-items: center;
    gap: var(--md-space-4);
}

.m3-navigation-drawer a {
    color: var(--md-sys-color-on-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
    padding: var(--md-space-1) var(--md-space-2);
    border-radius: var(--md-shape-corner-small);
    transition: background-color 0.2s;
    white-space: nowrap;
}

.m3-navigation-drawer a:hover {
    background-color: rgba(255,255,255,0.15);
}

.m3-navigation-drawer a i {
    margin-right: var(--md-space-1);
}

/* Language Selector */
.m3-language-selector {
    display: flex;
    gap: 2px;
    background: rgba(255,255,255,0.15);
    padding: 3px;
    border-radius: 20px;
    margin-left: var(--md-space-2);
}

.m3-language-selector a {
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--md-sys-color-on-primary);
    background: transparent;
    transition: background-color 0.2s, color 0.2s;
}

.m3-language-selector a:hover {
    background: rgba(255,255,255,0.2);
}

.m3-language-selector a.selected {
    background-color: var(--md-sys-color-accent);
    color: var(--md-sys-color-on-accent);
}

.m3-mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--md-sys-color-on-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--md-space-2);
    -webkit-appearance: none;
    appearance: none;
}

/* ===== HERO ===== */
.m3-hero-banner {
    background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, #003380 100%);
    color: var(--md-sys-color-on-primary);
    padding: var(--md-space-6) var(--md-space-4);
    text-align: center;
    flex-shrink: 0;
}

.m3-hero-banner h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--md-space-3);
    color: var(--md-sys-color-accent);
    letter-spacing: -0.5px;
}

.m3-hero-banner p {
    max-width: 680px;
    margin: 0 auto;
    font-size: 1rem;
    opacity: 0.9;
    color: var(--md-sys-color-on-primary);
}

/* ===== MAIN CONTENT ===== */
main {
    flex: 1 0 auto;
    width: 100%;
}

.m3-container {
    max-width: 1200px;
    margin: var(--md-space-4) auto;
    padding: 0 var(--md-space-4);
    width: 100%;
    box-sizing: border-box;
    flex: 1 0 auto;
}

/* ===== FILTER HUB ===== */
.m3-filter-hub {
    background: var(--md-sys-color-surface);
    padding: var(--md-space-4);
    border-radius: var(--md-shape-corner-medium);
    margin-bottom: var(--md-space-5);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    flex-wrap: wrap;
    gap: var(--md-space-3);
    align-items: flex-end;
}

.m3-filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--md-space-1);
    flex: 1;
    min-width: 150px;
}

.m3-filter-group label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--md-sys-color-on-surface-variant);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.m3-filter-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-shape-corner-small);
    font-family: var(--md-font-family);
    font-size: 0.9rem;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    cursor: pointer;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a8a9e' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.m3-filter-select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgba(0, 81, 186, 0.2);
}

.m3-filter-stats {
    width: 100%;
    text-align: right;
    font-size: 0.8rem;
    color: var(--md-sys-color-on-surface-variant);
    padding-top: var(--md-space-2);
    border-top: 1px solid var(--md-sys-color-outline-variant);
}

.m3-filter-stats span {
    color: var(--md-sys-color-primary);
    font-weight: 700;
}

/* ===== PRODUCT CARD GRID ===== */
.m3-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--md-space-4);
}

/* ===== PRODUCT CARD ===== */
.m3-product-card {
    background: var(--md-sys-color-surface);
    border-radius: var(--md-shape-corner-medium);
    overflow: hidden;
    box-shadow: var(--md-elevation-1);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border-bottom: 4px solid transparent;
    height: 100%;
    min-height: 380px;
}

.m3-product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-elevation-3);
    border-bottom-color: var(--md-sys-color-accent);
}

.m3-product-image {
    width: 100%;
    height: 200px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    padding: var(--md-space-3);
    overflow: hidden;
    flex-shrink: 0;
}

.m3-product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.m3-product-image .placeholder {
    font-size: 3rem;
    color: var(--md-sys-color-outline-variant);
}

.m3-product-body {
    padding: var(--md-space-4);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.m3-product-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--md-space-2);
    flex-wrap: wrap;
    gap: var(--md-space-1);
}

.m3-product-category {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--md-sys-color-primary);
    letter-spacing: 0.5px;
}

.m3-product-size {
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-primary);
    font-size: 0.6rem;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    flex-shrink: 0;
}

.m3-product-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 var(--md-space-2) 0;
    color: var(--md-sys-color-on-background);
    line-height: 1.3;
}

.m3-product-description {
    font-size: 0.85rem;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: var(--md-space-3);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* ===== BUTTONS ===== */
.m3-btn {
    display: inline-block;
    text-align: center;
    text-decoration: none;
    padding: 10px 16px;
    border-radius: var(--md-shape-corner-small);
    font-weight: 500;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s;
    -webkit-appearance: none;
    appearance: none;
    touch-action: manipulation;
}

.m3-btn-primary {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    width: 100%;
}

.m3-btn-primary:hover {
    background: #003b8a;
}

.m3-btn-primary:active {
    background: #002a66;
}

.m3-btn-accent {
    background: var(--md-sys-color-accent);
    color: var(--md-sys-color-on-accent);
    padding: 12px 24px;
    font-weight: 700;
}

.m3-btn-accent:hover {
    background: #e0be10;
}

.m3-btn-accent:active {
    background: #ccaa0e;
}

.m3-btn-secondary {
    background: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
}

.m3-btn-secondary:hover {
    background: #c5cdd8;
}

/* ===== PANE VIEW ===== */
.m3-pane {
    background: var(--md-sys-color-surface);
    padding: var(--md-space-4);
    border-radius: var(--md-shape-corner-large);
    box-shadow: var(--md-elevation-1);
    border: 1px solid var(--md-sys-color-outline-variant);
}

/* ===== FORM ELEMENTS ===== */
.m3-form-control {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: var(--md-space-3);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-shape-corner-small);
    font-family: var(--md-font-family);
    font-size: 16px !important;
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    transition: border-color 0.2s, box-shadow 0.2s;
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
}

.m3-form-control:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgba(0, 81, 186, 0.2);
}

.m3-form-control::placeholder {
    color: var(--md-sys-color-outline);
}

textarea.m3-form-control {
    resize: vertical;
    min-height: 80px;
}

/* ===== PRODUCT DETAIL ===== */
.m3-detail-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--md-space-5);
}

.m3-detail-image {
    flex: 1;
    min-width: 280px;
    background: white;
    border: 1px solid var(--md-sys-color-outline-variant);
    padding: var(--md-space-3);
    border-radius: var(--md-shape-corner-medium);
}

.m3-detail-image .viewport {
    width: 100%;
    aspect-ratio: 4/3;
    max-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    overflow: hidden;
}

.m3-detail-image .viewport img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.m3-detail-gallery {
    display: flex;
    gap: var(--md-space-2);
    margin-top: var(--md-space-3);
    overflow-x: auto;
    padding-bottom: var(--md-space-2);
    -webkit-overflow-scrolling: touch;
}

.m3-detail-gallery img {
    width: 55px;
    height: 55px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-shape-corner-small);
    transition: border-color 0.2s;
    flex-shrink: 0;
}

.m3-detail-gallery img:hover {
    border-color: var(--md-sys-color-primary);
}

.m3-detail-gallery img:active {
    border-color: var(--md-sys-color-accent);
}

.m3-detail-info {
    flex: 1;
    min-width: 280px;
}

.m3-detail-title {
    font-size: 1.8rem;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    margin: var(--md-space-2) 0;
    line-height: 1.2;
}

.m3-detail-divider {
    border: 0;
    border-top: 4px solid var(--md-sys-color-accent);
    margin: var(--md-space-3) 0;
    width: 60px;
}

.m3-detail-section-title {
    font-size: 1.05rem;
    color: var(--md-sys-color-primary);
    margin-top: var(--md-space-4);
    font-weight: 700;
}

.m3-detail-description {
    font-size: 0.95rem;
    color: var(--md-sys-color-on-surface-variant);
    text-align: justify;
    line-height: 1.6;
}

/* Specs Table */
.m3-specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--md-space-2);
    font-size: 0.9rem;
}

.m3-specs-table td {
    padding: 8px 4px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.m3-specs-table .key {
    font-weight: 700;
    color: var(--md-sys-color-on-background);
}

.m3-specs-table .value {
    text-align: right;
    color: var(--md-sys-color-primary);
    font-weight: 500;
}

/* ===== EMPTY STATE ===== */
.m3-empty-state {
    text-align: center;
    padding: var(--md-space-7) var(--md-space-4);
    color: var(--md-sys-color-on-surface-variant);
    grid-column: 1 / -1;
}

.m3-empty-state i {
    font-size: 3rem;
    color: var(--md-sys-color-primary);
    display: block;
    margin-bottom: var(--md-space-4);
    opacity: 0.3;
}

/* ===== ALERTS ===== */
.m3-alert {
    padding: var(--md-space-3) var(--md-space-4);
    border-radius: var(--md-shape-corner-small);
    margin-bottom: var(--md-space-4);
    font-weight: 500;
}

.m3-alert-success {
    background: #ecfdf5;
    border: 1px solid #10b981;
    color: #065f46;
}

.m3-alert-error {
    background: #fef2f2;
    border: 1px solid #ef4444;
    color: #991b1b;
}

/* ===== FOOTER - STICKY WITH STRUCTURE ===== */
.m3-footer {
    background: var(--md-sys-color-primary);
    color: #cbd5e1;
    padding: var(--md-space-6) var(--md-space-4) var(--md-space-4);
    border-top: 4px solid var(--md-sys-color-accent);
    flex-shrink: 0;
    width: 100%;
    margin-top: auto;
}

.m3-footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--md-space-5);
}

.m3-footer h4 {
    color: #ffffff;
    margin: 0 0 var(--md-space-3) 0;
    font-size: 1rem;
    font-weight: 600;
}

.m3-footer p {
    font-size: 0.8rem;
    line-height: 1.6;
    margin: 0 0 var(--md-space-2) 0;
}

.m3-footer a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.2s;
}

.m3-footer a:hover {
    color: var(--md-sys-color-accent);
}

.m3-footer .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.m3-footer .footer-links li {
    margin-bottom: var(--md-space-2);
}

.m3-footer .footer-links a {
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: var(--md-space-1);
}

.m3-footer .footer-social {
    display: flex;
    gap: var(--md-space-2);
    margin-top: var(--md-space-2);
}

.m3-footer .footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: background-color 0.2s;
}

.m3-footer .footer-social a:hover {
    background: var(--md-sys-color-accent);
    color: var(--md-sys-color-on-accent);
}

.m3-footer .contact-info {
    display: flex;
    align-items: center;
    gap: var(--md-space-2);
    margin-bottom: var(--md-space-2);
}

.m3-footer .contact-info i {
    width: 20px;
    color: var(--md-sys-color-accent);
}

.m3-footer .footer-bottom {
    text-align: center;
    margin-top: var(--md-space-5);
    padding-top: var(--md-space-3);
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.75rem;
    color: #94a3b8;
}

.m3-footer .footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: var(--md-space-4);
    margin-top: var(--md-space-2);
}

.m3-footer .footer-bottom-links a {
    color: #94a3b8;
    font-size: 0.75rem;
}

.m3-footer .footer-bottom-links a:hover {
    color: var(--md-sys-color-accent);
}

/* ===== RESPONSIVE - MOBILE FIRST ===== */

/* Mobile (up to 480px) */
@media (max-width: 480px) {
    .m3-brand {
        font-size: 0.95rem;
    }
    
    .m3-brand i {
        font-size: 1.1rem;
    }
    
    .m3-brand span {
        font-size: 0.65rem;
        padding: 1px 4px;
    }
    
    .m3-hero-banner h1 {
        font-size: 1.5rem;
    }
    
    .m3-hero-banner p {
        font-size: 0.9rem;
    }
    
    .m3-hero-banner {
        padding: var(--md-space-4) var(--md-space-3);
    }
    
    .m3-card-grid {
        grid-template-columns: 1fr;
        gap: var(--md-space-3);
    }
    
    .m3-product-card {
        min-height: 320px;
    }
    
    .m3-product-image {
        height: 180px;
    }
    
    .m3-filter-hub {
        padding: var(--md-space-3);
    }
    
    .m3-filter-group {
        min-width: 100%;
    }
    
    .m3-detail-title {
        font-size: 1.4rem;
    }
    
    .m3-pane {
        padding: var(--md-space-3);
    }
    
    .m3-detail-image {
        min-width: 100%;
    }
    
    .m3-detail-info {
        min-width: 100%;
    }
    
    .m3-footer-grid {
        grid-template-columns: 1fr;
        gap: var(--md-space-4);
    }
    
    .m3-footer .footer-bottom-links {
        flex-direction: column;
        gap: var(--md-space-2);
    }
}

/* Tablet (481px to 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .m3-card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--md-space-3);
    }
    
    .m3-hero-banner h1 {
        font-size: 1.8rem;
    }
    
    .m3-filter-group {
        min-width: 45%;
    }
    
    .m3-detail-grid {
        flex-direction: column;
    }
    
    .m3-detail-image {
        min-width: 100%;
    }
    
    .m3-detail-info {
        min-width: 100%;
    }
    
    .m3-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop (769px and up) */
@media (min-width: 769px) {
    .m3-hero-banner {
        padding: var(--md-space-8) var(--md-space-5);
    }
    
    .m3-hero-banner h1 {
        font-size: 2.8rem;
    }
    
    .m3-container {
        margin: var(--md-space-6) auto;
        padding: 0 var(--md-space-5);
    }
    
    .m3-pane {
        padding: var(--md-space-6);
    }
    
    .m3-product-card {
        min-height: 420px;
    }
    
    .m3-product-image {
        height: 220px;
    }
    
    .m3-footer {
        padding: var(--md-space-7) var(--md-space-5) var(--md-space-5);
    }
}

/* ===== MOBILE NAVIGATION ===== */
@media (max-width: 768px) {
    .m3-mobile-toggle {
        display: block;
    }
    
    .m3-navigation-drawer {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        width: 100%;
        background: var(--md-sys-color-primary);
        flex-direction: column;
        padding: var(--md-space-4);
        gap: var(--md-space-3);
        box-shadow: var(--md-elevation-3);
        border-top: 1px solid rgba(255,255,255,0.1);
        z-index: 999;
    }
    
    .m3-navigation-drawer.active {
        display: flex;
    }
    
    .m3-navigation-drawer a {
        padding: var(--md-space-3) var(--md-space-4);
        width: 100%;
        border-radius: var(--md-shape-corner-small);
        font-size: 1rem;
    }
    
    .m3-language-selector {
        margin-left: 0;
        align-self: flex-start;
        width: 100%;
        justify-content: flex-start;
    }
    
    .m3-language-selector a {
        padding: 6px 14px;
        font-size: 0.8rem;
    }
}

/* ===== UTILITY ===== */
.m3-text-center {
    text-align: center;
}

.m3-mt-2 {
    margin-top: var(--md-space-2);
}

.m3-mt-3 {
    margin-top: var(--md-space-3);
}

.m3-mt-4 {
    margin-top: var(--md-space-4);
}

.m3-mb-2 {
    margin-bottom: var(--md-space-2);
}

.m3-mb-3 {
    margin-bottom: var(--md-space-3);
}

.m3-mb-4 {
    margin-bottom: var(--md-space-4);
}

/* Touch-friendly touch targets */
button, 
.m3-btn,
.m3-language-selector a,
.m3-mobile-toggle,
.btn-sm {
    min-height: 44px;
    min-width: 44px;
}

/* Improve scrolling on mobile */
.m3-detail-gallery,
.m3-gallery-strip {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* Fix for iOS Safari */
@supports (-webkit-touch-callout: none) {
    .m3-footer {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Optional: Add to style.css for smoother loading *
.m3-product-image img {
    transition: opacity 0.3s ease;
}

.m3-product-image img:not([loaded]) {
    opacity: 0;
}

.m3-product-image img[loaded] {
    opacity: 1;
}

/* Optional: Image placeholder background *
.m3-product-image {
    background-color: #f5f8fc;
    position: relative;
}

.m3-product-image .placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}  */