* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Mobile-optimized touch targets */
*:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

/* Prevent text selection on buttons and UI elements */
button, .nav-link, .filter-btn, .view-btn, .cta-button {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

/* Smooth scrolling for better mobile experience */
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

/* CSS Custom Properties for Typography Scale */
:root {
    /* Unified Typography Scale - Responsive */
    --font-size-hero: clamp(2.5rem, 6vw, 4rem);
    --font-size-h1: clamp(2rem, 5vw, 3rem);
    --font-size-h2: clamp(1.6rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.3rem, 3.5vw, 2rem);
    --font-size-h4: clamp(1.1rem, 3vw, 1.5rem);
    --font-size-body: clamp(1rem, 2.5vw, 1.1rem);
    --font-size-small: clamp(0.9rem, 2.2vw, 1rem);
    --font-size-tiny: clamp(0.75rem, 2vw, 0.9rem);

    /* Icon Sizes */
    --font-size-icon-large: clamp(2rem, 4vw, 3rem);
    --font-size-icon-medium: clamp(1.5rem, 3vw, 2rem);
    --font-size-icon-small: clamp(1rem, 2.5vw, 1.5rem);

    /* Font Weights */
    --font-weight-thin: 100;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 500;
    --font-weight-bold: 550;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.4;
    --line-height-relaxed: 1.6;
    --line-height-loose: 1.8;

    /* Colors - Enhanced for OLED */
    --color-text-primary: #ffffff;
    --color-text-secondary: #e0e0e0;
    --color-text-tertiary: #c0c0c0;
    --color-text-muted: #808080;
    --color-text-disabled: #606060;
    --color-text-subtle: #404040;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: var(--line-height-normal);
    color: var(--color-text-secondary);
    background: #000;
    min-height: 100vh;
    overflow-x: hidden;
    font-size: var(--font-size-body);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.01) 2px,
            rgba(255, 255, 255, 0.01) 4px
        );
    pointer-events: none;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

/* Section Title Styling */
.section-title {
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
    line-height: var(--line-height-tight);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.section-description {
    color: #808080;
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand .brand-link {
    font-size: var(--font-size-h3);
    font-weight: 400;
    color: var(--color-text-secondary);
    text-decoration: none;
    letter-spacing: 2px;
    transition: color 0.3s ease;
}

.nav-brand .brand-link:hover {
    color: #ffffff;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-small);
    letter-spacing: 1px;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #606060, #ffffff);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: #ffffff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: #e0e0e0;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Enhanced Mobile Navigation for Modern Smartphones */
/* Samsung S24 Ultra: 6.8", 1440x3120, iPhone 16 Pro: 6.3", 1206x2622 */
@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        backdrop-filter: blur(10px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 2rem 0;
        gap: 1.5rem;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
        padding: 8px;
        min-height: 44px;
        min-width: 44px;
        justify-content: center;
        align-items: center;
    }

    .nav-link {
        font-size: 1.2rem;
        padding: 1.2rem 0;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .section-title {
        font-size: 1.8rem;
        letter-spacing: 0.15em;
        margin-bottom: 2.5rem;
        padding-bottom: 1rem;
        padding: 0 1rem 1rem;
    }
    
    .section-title::after {
        width: 80px;
    }
    
    .section-description {
        margin-bottom: 2.5rem;
        padding: 0 1.5rem;
        font-size: 1rem;
        line-height: 1.7;
    }
}

/* Enhanced Mobile Support for larger screens */
@media screen and (max-width: 1024px) and (min-width: 769px) {
    .section-title {
        font-size: 1.7rem;
        margin-bottom: 2.5rem;
    }
    
    .container {
        padding: 0 2rem;
    }
}

/* Social Media Icons */
.social-media-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    cursor: default;
}

.social-icon svg {
    transition: all 0.3s ease;
}

.social-icon.disabled {
    color: #404040 !important;
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
    position: relative;
}

.social-icon.disabled:hover {
    color: #404040 !important;
    opacity: 0.3;
}

.social-icon.disabled svg {
    filter: grayscale(100%) brightness(0.6);
    fill: #404040 !important;
}

/* Tooltip for disabled state */
.social-icon.disabled::after {
    content: attr(title);
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #e0e0e0;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
}

.social-icon.disabled:hover::after {
    opacity: 1;
}


main {
    padding-top: 0;
    padding-bottom: 3rem;
    margin-top: 0;
}

.hero {
    background: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 6rem 3rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

h1 {
    font-size: var(--font-size-hero);
    font-weight: var(--font-weight-thin);
    letter-spacing: 0.5em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    position: relative;
    z-index: 1;
}

.subtitle {
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    z-index: 1;
}

.cta-button {
    display: inline-block;
    padding: 1rem 3rem;
    background: transparent;
    color: var(--color-text-primary);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: var(--font-size-small);
    transition: all 0.3s;
    position: relative;
    z-index: 1;
    overflow: hidden;
    /* Touch-optimiert für mobile Geräte */
    min-height: 44px;
    min-width: 120px;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.1);
    touch-action: manipulation;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transition: left 0.3s;
    z-index: -1;
}

.cta-button:hover {
    border-color: #fff;
    color: #fff;
}

.cta-button:hover::before {
    left: 0;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1px;
    margin-bottom: 4rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
}

.feature-card {
    background: #000;
    padding: 3rem 2rem;
    transition: all 0.3s;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.feature-icon {
    font-size: var(--font-size-icon-medium);
    margin-bottom: 1.5rem;
    opacity: 0.8;
    filter: grayscale(100%);
}

.feature-title {
    font-size: var(--font-size-h4);
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-weight-light);
}

.feature-description {
    color: var(--color-text-disabled);
    line-height: var(--line-height-relaxed);
    font-size: var(--font-size-body);
}

footer {
    background: #000;
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 6rem;
}

.footer-content {
    color: var(--color-text-subtle);
    font-size: var(--font-size-small);
    letter-spacing: 0.1em;
}

.footer-content p {
    margin: 0.5rem 0;
}

/* Modal Body Scroll Prevention - Moved to mobile optimization section */

/* Samsung S24 Ultra Modal Optimierungen (6.8", 1440x3120px, Android) */
@media (max-width: 768px) and (min-height: 900px) and (min-resolution: 2dppx) {
    .modal, .product-modal, .block-modal {
        padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 1rem) env(safe-area-inset-bottom, 1rem) env(safe-area-inset-left, 1rem) !important;
        align-items: flex-start !important;
        padding-top: max(env(safe-area-inset-top, 0), 2rem) !important;
    }
    
    .modal-content {
        max-height: calc(100vh - env(safe-area-inset-top, 0) - env(safe-area-inset-bottom, 0) - 4rem) !important;
        width: calc(100% - 2rem) !important;
        margin: 0 auto !important;
        max-width: none !important;
        border-radius: 16px !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        border: 1px solid rgba(255, 255, 255, 0.15) !important;
    }
    
    .modal-close {
        width: 48px !important;
        height: 48px !important;
        font-size: 1.8rem !important;
        top: 1rem !important;
        right: 1rem !important;
        background: rgba(0, 0, 0, 0.95) !important;
        border-radius: 50% !important;
        border: 2px solid rgba(255, 255, 255, 0.3) !important;
        z-index: 1000 !important;
        touch-action: manipulation !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .modal-body {
        padding: 2.5rem 1.8rem 2rem 1.8rem !important;
        padding-top: calc(48px + 1.5rem) !important; /* Platz für Close Button */
    }
    
    .modal-title {
        font-size: 1.7rem !important;
        margin-bottom: 2.5rem !important;
        line-height: 1.3 !important;
        padding-right: 4rem !important; /* Platz für Close Button */
        letter-spacing: 0.1em !important;
    }
}

/* Core Mobile Styles */
@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
        letter-spacing: 0.15em;
        line-height: 1.2;
        margin-bottom: 1.5rem;
    }

    .subtitle {
        font-size: 0.9rem;
        margin-bottom: 2.5rem;
        letter-spacing: 0.08em;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 4rem 1.5rem;
        margin-bottom: 3rem;
    }

    .cta-button {
        padding: 1.4rem 3rem;
        font-size: 1.1rem;
        min-height: 48px;
        min-width: 140px;
        letter-spacing: 0.15em;
        /* Erweiterte Touch-Ziele für moderne Smartphones */
        margin: 1rem 0.5rem;
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.15);
        border-width: 2px;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 1px;
        margin-bottom: 3rem;
    }

    .feature-card {
        padding: 2.5rem 2rem;
        text-align: center;
    }

    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 1.5rem;
    }

    .feature-title {
        font-size: 1.2rem;
        margin-bottom: 1.5rem;
    }

    .feature-description {
        font-size: 1rem;
        line-height: 1.6;
    }

    .container {
        padding: 0 1.5rem;
    }
}

/* Product Gallery Styles */
.products-section {
    margin: 4rem 0;
    min-height: 60vh;
}

.category-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #808080;
    padding: 0.8rem 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
}

.filter-btn.active {
    background: rgba(255, 255, 255, 0.05);
    border-color: #fff;
    color: #fff;
}

.product-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2px;
    background: rgba(255, 255, 255, 0.05);
    padding: 2px;
}

.product-card {
    background: #000;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
}

.product-card.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.9);
    color: #000;
    padding: 0.3rem 0.8rem;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    z-index: 2;
    font-weight: 500;
}

.product-image {
    position: relative;
    padding-bottom: 100%;
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.view-btn {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
    padding: 1rem 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s;
}

.view-btn:hover {
    background: #fff;
    color: #000;
}

.product-info {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.product-name {
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 0.5rem;
}

.product-material {
    font-size: 0.8rem;
    color: #606060;
    margin-bottom: 0.8rem;
}

.product-price {
    font-size: 1.1rem;
    color: #a0a0a0;
    font-weight: 300;
}

/* Modal Styles */
.product-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    padding: 2rem;
}

.product-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #0a0a0a;
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: #808080;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    transition: color 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #fff;
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 3rem;
}

.modal-images {
    position: sticky;
    top: 0;
}

.image-main img {
    width: 100%;
    height: auto;
}

.image-thumbs {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.image-thumbs .thumb {
    width: 80px;
    height: 80px;
    object-fit: cover;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.3s;
    border: 1px solid transparent;
}

.image-thumbs .thumb.active,
.image-thumbs .thumb:hover {
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.3);
}

.modal-title {
    font-size: 2rem;
    font-weight: 100;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 1rem;
}

.modal-price {
    font-size: 1.5rem;
    color: #a0a0a0;
    margin-bottom: 1rem;
}

.modal-material {
    color: #606060;
    margin-bottom: 2rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.modal-description {
    color: #808080;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.modal-sizes {
    margin-bottom: 2rem;
}

.modal-sizes h4 {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: #a0a0a0;
    margin-bottom: 1rem;
}

.size-options {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.size-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #808080;
    padding: 0.5rem 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.size-btn:hover {
    border-color: #fff;
    color: #fff;
}

.contact-btn {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
    padding: 1rem 3rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    cursor: pointer;
    transition: all 0.3s;
    width: 100%;
}

.contact-btn:hover {
    background: #fff;
    color: #000;
}

body.modal-open {
    overflow: hidden;
}

.no-products,
.error-message {
    text-align: center;
    padding: 4rem 2rem;
    color: #606060;
    font-size: 1.1rem;
}

/* Product Gallery Mobile Optimizations */
@media (max-width: 768px) {
    .products-section {
        margin: 3rem 0;
    }

    .product-gallery {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 1px;
        padding: 1px;
    }

    .product-card {
        min-height: 280px;
    }

    .product-info {
        padding: 1.2rem;
    }

    .product-name {
        font-size: 0.9rem;
        margin-bottom: 0.8rem;
    }

    .product-material {
        font-size: 0.75rem;
        margin-bottom: 0.6rem;
    }

    .product-price {
        font-size: 1rem;
    }

    .view-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.75rem;
        min-height: 44px;
    }

    /* Modal Mobile Optimizations - Samsung S24 Ultra Ready */
    .product-modal {
        padding: 1rem;
        align-items: flex-start;
        padding-top: max(env(safe-area-inset-top, 100px), 100px);
        padding-bottom: max(env(safe-area-inset-bottom, 20px), 20px);
    }

    .modal-content {
        max-height: calc(100vh - max(env(safe-area-inset-top, 100px), 100px) - max(env(safe-area-inset-bottom, 20px), 20px) - 2rem);
        width: 100%;
        margin: 0;
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: linear-gradient(135deg, #0a0a0a 0%, #151515 100%);
        box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.8);
    }

    .modal-body {
        grid-template-columns: 1fr;
        padding: 2rem 1.5rem;
        gap: 2.5rem;
        max-height: calc(100vh - env(safe-area-inset-top, 20px) - env(safe-area-inset-bottom, 20px) - 100px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .modal-close {
        background: rgba(0, 0, 0, 0.95);
        border: 2px solid rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        width: 48px;
        height: 48px;
        font-size: 1.4rem;
        top: 1rem;
        right: 1rem;
        z-index: 100;
        backdrop-filter: blur(10px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }
    
    .modal-close:hover,
    .modal-close:active {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.3);
        transform: scale(1.05);
    }

    /* Image Section Optimization */
    .modal-images {
        position: relative;
        margin-bottom: 1.5rem;
    }
    
    .image-main {
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        margin-bottom: 1rem;
    }
    
    .image-main img {
        width: 100%;
        height: auto;
        display: block;
    }

    .image-thumbs {
        justify-content: center;
        gap: 0.5rem;
        margin-top: 1rem;
    }

    .image-thumbs .thumb {
        width: 70px;
        height: 70px;
        border-radius: 8px;
        border: 2px solid rgba(255, 255, 255, 0.1);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .image-thumbs .thumb.active,
    .image-thumbs .thumb:hover {
        border-color: rgba(255, 255, 255, 0.5);
        transform: scale(1.05);
        box-shadow: 0 4px 16px rgba(255, 255, 255, 0.1);
    }

    /* Typography Optimization */
    .modal-title {
        font-size: clamp(1.6rem, 5vw, 2rem);
        margin-bottom: 1rem;
        letter-spacing: 0.12em;
        line-height: 1.2;
        text-align: center;
        background: linear-gradient(135deg, #ffffff 0%, #e0e0e0 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .modal-price {
        font-size: clamp(1.4rem, 4vw, 1.6rem);
        margin-bottom: 0.5rem;
        color: #ffffff;
        text-align: center;
        font-weight: 100;
        letter-spacing: 0.15em;
        position: relative;
        text-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
    }
    
    .modal-price::before {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    }

    .modal-material {
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        margin-bottom: 2rem;
        color: #c0c0c0;
        text-align: center;
        font-weight: 300;
        opacity: 0.8;
    }

    .modal-description {
        font-size: clamp(1rem, 2.8vw, 1.1rem);
        line-height: 1.6;
        margin-bottom: 2.5rem;
        color: #e0e0e0;
        text-align: justify;
        padding: 0 0.5rem;
    }

    /* Size Section Optimization */
    .modal-sizes {
        margin-bottom: 2.5rem;
    }
    
    .modal-sizes h4 {
        font-size: clamp(1rem, 3vw, 1.2rem);
        text-align: center;
        margin-bottom: 1.5rem;
        color: #fff;
        letter-spacing: 0.1em;
        font-weight: 300;
    }

    .size-options {
        display: flex;
        justify-content: center;
        gap: 0.8rem;
        flex-wrap: wrap;
    }

    .size-btn {
        padding: 1rem 1.5rem;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        min-height: 48px;
        min-width: 70px;
        border: 2px solid rgba(255, 255, 255, 0.2);
        background: rgba(255, 255, 255, 0.05);
        color: #fff;
        border-radius: 8px;
        cursor: pointer;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        font-weight: 500;
        letter-spacing: 0.05em;
        backdrop-filter: blur(10px);
    }
    
    .size-btn:hover,
    .size-btn:active {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.4);
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(255, 255, 255, 0.1);
    }

    /* Action Button Optimization */
    .modal-actions {
        text-align: center;
        padding-top: 1rem;
    }

    .contact-btn {
        padding: 1.5rem 3rem;
        font-size: clamp(1rem, 3vw, 1.1rem);
        min-height: 56px;
        letter-spacing: 0.12em;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: #ffffff;
        border-radius: 12px;
        cursor: pointer;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        font-weight: 300;
        text-transform: uppercase;
        position: relative;
        overflow: hidden;
        backdrop-filter: blur(20px);
        box-shadow: 
            0 8px 32px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    
    .contact-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
        transition: left 0.8s ease;
    }
    
    .contact-btn:hover::before {
        left: 100%;
    }
    
    .contact-btn:hover,
    .contact-btn:active {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
        border-color: rgba(255, 255, 255, 0.4);
        transform: translateY(-2px);
        box-shadow: 
            0 12px 40px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    }

    /* Category Filters Mobile */
    .category-filters {
        gap: 0.3rem;
        margin-bottom: 2rem;
        padding: 0 0.5rem;
    }

    .filter-btn {
        padding: 0.8rem 1.2rem;
        font-size: 0.8rem;
        min-height: 44px;
        flex: 1;
        min-width: 0;
    }
}

/* Samsung S24 Ultra Multi-Resolution Support */
/* FHD+ Mode: 1080x2340px (2.16:1) */
@media screen and (min-width: 360px) and (max-width: 430px) and (min-height: 780px) and (max-height: 950px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 3) {
    .product-modal {
        padding: 1rem;
        padding-top: max(env(safe-area-inset-top, 140px), 140px);
        padding-bottom: max(env(safe-area-inset-bottom, 40px), 40px);
        align-items: flex-start;
    }
    
    .modal-content {
        border-radius: 20px;
        background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        max-height: calc(100vh - 180px);
        width: 100%;
        max-width: calc(100vw - 2rem);
        overflow-y: auto;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .modal-body {
        padding: 2.5rem 1.5rem;
        gap: 2.5rem;
        display: flex;
        flex-direction: column;
    }
    
    .modal-close {
        position: fixed;
        top: max(env(safe-area-inset-top, 50px), 50px);
        right: 1.5rem;
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
        z-index: 1001;
        background: rgba(0, 0, 0, 0.8);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
}

/* Samsung S24 Ultra QHD+ Mode: 1440x3120px (2.17:1) */
@media screen and (min-width: 360px) and (max-width: 430px) and (min-height: 1040px) and (orientation: portrait) and (-webkit-device-pixel-ratio: 4) {
    .product-modal {
        padding: 1rem;
        padding-top: max(env(safe-area-inset-top, 160px), 160px);
        padding-bottom: max(env(safe-area-inset-bottom, 50px), 50px);
        align-items: flex-start;
    }
    
    .modal-content {
        border-radius: 24px;
        background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        max-height: calc(100vh - 210px);
        width: 100%;
        max-width: calc(100vw - 2rem);
        overflow-y: auto;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    
    .modal-body {
        padding: 3rem 2rem;
        gap: 3rem;
        display: flex;
        flex-direction: column;
    }
    
    .modal-close {
        position: fixed;
        top: max(env(safe-area-inset-top, 70px), 70px);
        right: 2rem;
        width: 52px;
        height: 52px;
        font-size: 1.6rem;
        z-index: 1001;
        background: rgba(0, 0, 0, 0.9);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
}

/* Universal Samsung Ultra Devices Fallback */
@media screen and (min-width: 360px) and (max-width: 430px) and (min-height: 800px) and (orientation: portrait) {
    .modal-title {
        font-size: clamp(1.6rem, 5vw, 2rem);
        margin-bottom: 1.5rem;
        line-height: 1.2;
        text-align: center;
    }
    
    .modal-price {
        font-size: clamp(1.4rem, 4vw, 1.6rem);
        margin-bottom: 1rem;
        text-align: center;
        color: #ffffff;
        font-weight: 100;
        letter-spacing: 0.15em;
        position: relative;
        text-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
    }
    
    .modal-price::after {
        content: '';
        position: absolute;
        bottom: -8px;
        left: 50%;
        transform: translateX(-50%);
        width: 60px;
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
        box-shadow: 0 1px 4px rgba(255, 255, 255, 0.2);
    }
    
    .modal-material {
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        margin-bottom: 1.5rem;
        text-align: center;
        opacity: 0.8;
    }
    
    .modal-description {
        font-size: clamp(0.95rem, 2.8vw, 1.1rem);
        line-height: 1.6;
        margin-bottom: 2rem;
        text-align: center;
        opacity: 0.9;
    }
    
    .contact-btn {
        padding: 1.5rem 3rem;
        font-size: clamp(1rem, 3vw, 1.1rem);
        min-height: 56px;
        border-radius: 12px;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
        font-weight: 400;
        letter-spacing: 0.1em;
        background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        color: #ffffff;
        transition: all 0.3s ease;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }
    
    .contact-btn:hover {
        background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 50%, #2a2a2a 100%);
        border-color: rgba(255, 255, 255, 0.2);
        transform: translateY(-2px);
        box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
    }
    
    .size-btn {
        padding: 1rem 1.5rem;
        min-height: 48px;
        min-width: 70px;
        border-radius: 10px;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
    }
    
    .image-thumbs .thumb {
        width: 70px;
        height: 70px;
        border-radius: 10px;
    }
    
    .modal-images {
        order: -1;
        margin-bottom: 1rem;
    }
    
    .image-main img {
        border-radius: 16px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    }
}

/* iPhone 16 Pro Specific Optimizations (6.3" 1206x2622px) */
@media screen and (min-width: 375px) and (max-width: 430px) and (min-height: 750px) and (max-height: 950px) {
    .product-modal {
        padding-top: max(env(safe-area-inset-top, 47px), 47px);
        padding-bottom: max(env(safe-area-inset-bottom, 34px), 34px);
    }
    
    .modal-content {
        border-radius: 20px 20px 0 0;
        background: linear-gradient(135deg, #0a0a0a 0%, #181818 50%, #0e0e0e 100%);
    }
    
    .modal-body {
        padding: 2.3rem 1.8rem;
        gap: 2.8rem;
    }
    
    .modal-close {
        top: 1.3rem;
        right: 1.3rem;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* Modal Active State - Prevent Scrolling */
.modal-active {
    overflow: hidden !important;
    height: 100vh !important;
    position: fixed !important;
    width: 100% !important;
}

@media (max-width: 768px) {
    .modal-active {
        padding-right: 0 !important; /* Prevent scrollbar compensation */
    }
}

/* Value Section - KiezForm Aesthetic */
.value-section {
    margin-bottom: 4rem;
    position: relative;
}

.value-section .section-title {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-thin);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 3rem;
    color: #fff;
    opacity: 0.9;
}

.value-content {
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
    margin-bottom: 4rem;
}

.verification-process,
.verification-workflow,
.security-features {
    background: #000;
    border: 1px solid transparent;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.verification-process {
    padding: 4rem 3rem 3rem;
}

.verification-workflow {
    padding: 4rem 3rem 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.security-features {
    padding: 4rem 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.blockchain-preview {
    background: #000;
    padding: 4rem 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.verification-process::before,
.verification-workflow::before,
.security-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.verification-process:hover::before,
.verification-workflow:hover::before,
.security-features:hover::before {
    opacity: 1;
}

.verification-process:hover,
.verification-workflow:hover,
.security-features:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.subsection-title {
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    color: #fff;
    opacity: 0.8;
    position: relative;
    z-index: 1;
}

.verification-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
    margin-bottom: 2rem;
}

.verification-item {
    background: #000;
    padding: 3rem 2rem;
    transition: all 0.3s;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.verification-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.verification-item:hover::before {
    opacity: 1;
}

.verification-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.verification-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    opacity: 0.8;
    filter: grayscale(100%);
}

.verification-item h4 {
    font-size: var(--font-size-h4);
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 400;
    line-height: var(--line-height-normal);
}

.verification-item p {
    color: var(--color-text-muted);
    font-size: var(--font-size-small);
    line-height: var(--line-height-relaxed);
    font-weight: var(--font-weight-regular);
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
    margin-bottom: 2rem;
}

.workflow-step {
    background: #000;
    padding: 2rem;
    transition: all 0.3s;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.workflow-step:hover::before {
    opacity: 1;
}

.workflow-step:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.workflow-step:hover .step-number {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.3);
    opacity: 1;
}

.step-number {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 400;
    font-size: 1rem;
    flex-shrink: 0;
    border: 2px solid rgba(255, 255, 255, 0.2);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.step-content h4 {
    font-size: var(--font-size-small);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    color: var(--color-text-primary);
    line-height: var(--line-height-normal);
}

.step-content p {
    color: var(--color-text-muted);
    font-size: var(--font-size-small);
    line-height: var(--line-height-relaxed);
    font-weight: var(--font-weight-regular);
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
}

.security-item {
    background: #000;
    padding: 2rem;
    transition: all 0.3s;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.security-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.security-item:hover::before {
    opacity: 1;
}

.security-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.security-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    opacity: 0.8;
    filter: grayscale(100%);
}

.security-item span:last-child {
    color: #808080;
    font-size: 0.9rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Share Section - KiezForm Aesthetic */
.share-section {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 6rem 3rem;
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.share-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

.share-section .section-title {
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-thin);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 3rem;
    color: #fff;
    position: relative;
    z-index: 1;
    opacity: 0.9;
}

.share-content {
    position: relative;
    z-index: 1;
}

.share-description {
    margin-bottom: 4rem;
}

.share-description h3 {
    font-size: 1.1rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    color: #fff;
    opacity: 0.8;
}

.share-description p {
    color: #808080;
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 500px;
    margin: 0 auto;
}

.share-qr-container {
    margin-bottom: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.share-qr {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    display: inline-block;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.share-qr::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.share-qr:hover::before {
    opacity: 1;
}

.share-qr:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.share-url {
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: #fff;
    text-transform: uppercase;
    opacity: 0.8;
}

.share-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, 0.05);
    padding: 1px;
    max-width: 500px;
    margin: 0 auto;
}

.share-button {
    background: #000;
    border: 1px solid transparent;
    color: #808080;
    padding: 1.5rem;
    font-size: 0.9rem;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    overflow: hidden;
}

.share-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.02));
    opacity: 0;
    transition: opacity 0.3s;
}

.share-button:hover::before {
    opacity: 1;
}

.share-button:hover {
    border-color: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.share-button:active {
    transform: none;
}

/* Mobile Responsiveness - Samsung S24 Ultra Optimized */
@media (max-width: 768px) {
    /* Navigation Mobile Optimizations */
    .nav-brand .brand-link {
        font-size: var(--font-size-h3-mobile) !important;
        font-weight: 400;
        letter-spacing: 0.1em;
    }
    
    .nav-link {
        font-size: var(--font-size-body-mobile) !important;
        font-weight: var(--font-weight-medium);
        padding: 1.2rem 0;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    /* Mobile layout adjustments - font sizes handled by clamp() in variables */
    .section-title,
    .value-section .section-title,
    .share-section .section-title {
        letter-spacing: 0.15em;
        margin-bottom: 3rem;
        padding: 0 1.5rem 1rem;
        line-height: var(--line-height-relaxed);
    }

    .subsection-title {
        margin-bottom: 2.5rem;
        padding: 0 1.5rem;
        text-align: center;
        line-height: var(--line-height-normal);
        letter-spacing: 0.1em;
    }

    .verification-process,
    .verification-workflow,
    .security-features {
        padding: 2.5rem 1rem 2rem;
    }

    .verification-grid {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .verification-item {
        padding: 3rem 2rem;
        text-align: center;
        min-height: 160px;
    }

    .verification-item h4 {
        font-size: var(--font-size-h4-mobile) !important;
        font-weight: 400;
        line-height: var(--line-height-normal);
        margin-bottom: 1.5rem;
        color: var(--color-text-primary);
        letter-spacing: 0.05em;
    }

    .verification-item p {
        font-size: var(--font-size-body-mobile) !important;
        font-weight: var(--font-weight-regular);
        line-height: var(--line-height-relaxed);
        color: var(--color-text-tertiary);
    }

    .verification-icon {
        font-size: 2.5rem;
        margin-bottom: 2rem;
        display: block;
        line-height: 1;
        opacity: 0.9;
    }

    .workflow-steps {
        grid-template-columns: 1fr;
        gap: 1px;
        margin-bottom: 3rem;
    }

    .workflow-step {
        flex-direction: row;
        text-align: left;
        gap: 1.5rem;
        padding: 2.5rem 2rem;
        align-items: flex-start;
        min-height: 120px;
    }

    .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
        flex-shrink: 0;
        font-weight: 400;
        background: rgba(255, 255, 255, 0.15);
        border: 2px solid rgba(255, 255, 255, 0.25);
    }

    .step-content {
        flex: 1;
        min-width: 0;
    }

    .step-content h4 {
        font-size: var(--font-size-h4-mobile) !important;
        margin-bottom: 1.2rem;
        font-weight: 400;
        letter-spacing: 0.05em;
        line-height: var(--line-height-normal);
        color: var(--color-text-primary);
        text-transform: uppercase;
    }

    .step-content p {
        font-size: var(--font-size-body-mobile) !important;
        line-height: var(--line-height-relaxed);
        color: var(--color-text-tertiary);
        font-weight: var(--font-weight-regular);
    }

    .security-grid {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .security-item {
        padding: 2.5rem 2rem;
        justify-content: flex-start;
        text-align: left;
        gap: 2rem;
        min-height: 100px;
        align-items: center;
    }

    .security-item span:last-child {
        font-size: var(--font-size-body-mobile) !important;
        font-weight: var(--font-weight-regular);
        line-height: var(--line-height-relaxed);
        color: var(--color-text-tertiary);
    }

    .security-icon {
        font-size: 1.5rem;
        opacity: 0.9;
    }

    .share-section {
        padding: 3rem 1.5rem;
        margin-bottom: 3rem;
    }

    .share-description {
        margin-bottom: 3rem;
        padding: 0 1rem;
    }

    .share-description h3 {
        font-size: var(--font-size-h3-mobile) !important;
        font-weight: 400;
        margin-bottom: 1.5rem;
        color: var(--color-text-primary);
        line-height: var(--line-height-normal);
    }

    .share-description p {
        font-size: var(--font-size-body-mobile) !important;
        line-height: var(--line-height-relaxed);
        color: var(--color-text-tertiary);
        font-weight: var(--font-weight-regular);
    }

    .share-qr-container {
        margin-bottom: 3rem;
        gap: 1.5rem;
    }

    .share-qr {
        padding: 2rem;
        max-width: 200px;
        margin: 0 auto;
    }

    .share-url {
        font-size: var(--font-size-small-mobile) !important;
        letter-spacing: 0.15em;
        font-weight: var(--font-weight-medium);
        color: var(--color-text-primary);
    }

    .share-actions {
        grid-template-columns: 1fr;
        max-width: 280px;
        gap: 1px;
    }

    .share-button {
        padding: 1.3rem 1.5rem;
        font-size: var(--font-size-small-mobile) !important;
        font-weight: var(--font-weight-medium);
        min-height: 48px;
        letter-spacing: 0.08em;
    }

    .blockchain-preview {
        padding: 0 1rem;
        text-align: center;
    }

    .blockchain-preview p {
        font-size: 0.9rem;
        line-height: 1.6;
        margin-bottom: 2rem;
        padding: 0 1rem;
    }

    .blockchain-preview .cta-button {
        padding: 1rem 2rem;
        font-size: var(--font-size-small-mobile) !important;
        font-weight: var(--font-weight-medium);
        min-height: 44px;
    }
}

/* Samsung S24 Ultra Optimierungen (6.8", 1440x3120px) */
@media (max-width: 768px) and (min-height: 900px) and (min-resolution: 2dppx) {
    /* OLED-optimized spacing for large high-resolution screens - font sizes handled by variables */
    .section-title {
        margin-bottom: 4rem;
        line-height: 1.15;
    }

    .subsection-title {
        margin-bottom: 3.5rem;
        line-height: 1.25;
    }
    
    .verification-item,
    .workflow-step {
        padding: 4rem 3rem !important;
        min-height: 200px !important;
        margin-bottom: 2rem;
    }
    
    .hero h1 {
        /* Font size handled by --font-size-hero variable */
        margin-bottom: 2rem;
    }
    
    .hero .subtitle {
        font-size: clamp(1.1rem, 3vw, 1.3rem) !important;
        margin-bottom: 3rem;
    }
    
    .nav-link {
        font-size: 1.4rem !important;
        padding: 1.5rem 0 !important;
        min-height: 48px !important;
    }
}

/* iPhone 16 Pro Optimierungen (6.3", 1206x2622px) */
@media (max-width: 768px) and (min-height: 800px) and (max-height: 900px) {
    /* Optimized for iPhone 16 Pro dimensions - font sizes handled by variables */
    .section-title {
        margin-bottom: 3.5rem;
        line-height: 1.2;
    }

    .subsection-title {
        margin-bottom: 3rem;
        line-height: 1.3;
    }
    
    .verification-item,
    .workflow-step {
        padding: 3.5rem 2.5rem !important;
        min-height: 180px !important;
    }
    
    .hero h1 {
        /* Font size handled by --font-size-hero variable */
    }
    
    .nav-link {
        font-size: var(--font-size-h3);
        padding: 1.3rem 0;
    }
}

/* Zusätzliche moderne Smartphone-Optimierungen */
@media (max-width: 480px) {
    /* Extra kleine Bildschirme / kompakte Smartphones */
    .container {
        padding: 0 1rem;
    }
    
    .section-title {
        margin-bottom: 2.5rem;
    }

    .cta-button {
        width: 100%;
        max-width: 280px;
        margin: 1rem auto;
        display: block;
        text-align: center;
    }

    .nav-link {
        font-size: var(--font-size-h4);
        padding: 1rem 0;
        min-height: 44px;
    }
}

/* Moderne Touch-Interaktionen für alle mobilen Geräte */
@media (max-width: 768px) {
    /* Verbesserte Touch-Ziele */
    button, .btn, .filter-btn, .view-btn {
        min-height: 44px;
        min-width: 44px;
        padding: 0.8rem 1.5rem;
        touch-action: manipulation;
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.1);
    }
    
    /* Verbesserte Scrolling-Performance */
    * {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Touch-optimierte Links */
    a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        touch-action: manipulation;
    }
    
    /* Form-Inputs für Touch optimiert */
    input, textarea, select {
        min-height: 44px;
        font-size: 16px; /* Verhindert Zoom auf iOS */
        padding: 0.8rem;
        border-radius: 8px;
    }
    
    /* Verbesserte Modal-Interaktionen */
    .modal, .product-modal {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
}

/* Moderne High-DPI & OLED Display Optimierungen */
@media (min-resolution: 2dppx) and (max-width: 768px) {
    /* OLED-optimierte Farben für bessere Energie-Effizienz */
    body {
        background: #000000; /* True black für OLED */
    }
    
    body::before {
        background: repeating-linear-gradient(
            0deg,
            transparent,
            transparent 1px,
            rgba(255, 255, 255, 0.008) 1px,
            rgba(255, 255, 255, 0.008) 2px
        );
    }
    
    /* Schärfere Icons und Grafiken für High-DPI */
    .feature-icon, .verification-icon, .security-icon {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    
    /* Optimierte Schatten für High-DPI */
    .feature-card, .verification-item, .workflow-step {
        box-shadow: 
            0 1px 3px rgba(255, 255, 255, 0.02),
            0 1px 2px rgba(255, 255, 255, 0.01);
    }
}

/* Dark Mode Support für moderne Smartphones */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    /* Bereits für Dark Mode optimiert - verstärke OLED-Unterstützung */
    * {
        color-scheme: dark;
    }
}

/* Landscape Mode Optimierungen für Smartphones */
@media (max-width: 896px) and (orientation: landscape) and (max-height: 414px) {
    .hero {
        padding: 2rem 1rem !important;
        min-height: 70vh !important;
    }
    
    .hero h1 {
        margin-bottom: 1rem;
    }

    .navbar {
        backdrop-filter: blur(20px);
        background: rgba(0, 0, 0, 0.95);
    }

    .section-title {
        margin-bottom: 2rem;
    }
}
    
    .verification-icon {
        font-size: 3rem !important;
        margin-bottom: 2.5rem !important;
    }
    
    .step-number {
        width: 50px !important;
        height: 50px !important;
        font-size: 1.3rem !important;
        font-weight: 400 !important;
    }
    
    .verification-item h4,
    .step-content h4 {
        font-size: clamp(1.1rem, 3.2vw, 1.3rem) !important;
        margin-bottom: 1.5rem !important;
    }
    
    .verification-item p,
    .step-content p {
        font-size: clamp(1rem, 2.8vw, 1.2rem) !important;
        line-height: 1.7 !important;
    }
    
    .security-item {
        padding: 3rem 2.5rem !important;
        min-height: 120px !important;
    }
    
    .security-item span:last-child {
        font-size: clamp(1rem, 2.8vw, 1.2rem) !important;
    }
}