/* === CONTACT CARD SECTION - MOBILE-OPTIMIZED === */
.contact-card-section {
    padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

    .contact-card-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at 30% 70%, var(--primary-50) 0%, transparent 50%), radial-gradient(circle at 70% 30%, var(--secondary-50) 0%, transparent 50%);
        opacity: 0.6;
    }

.contact-card-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 max(var(--space-6), var(--safe-area-left));
    position: relative;
    z-index: 1;
}

.contact-card-header {
    text-align: center;
    margin-bottom: clamp(var(--space-8), 6vw, var(--space-16));
}

.contact-card-title {
    font-size: clamp(1.75rem, 6vw, 3rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-4);
    line-height: 1.1;
}

.contact-card-subtitle {
    font-size: clamp(1rem, 3.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* === RESPONSIVE GRID LAYOUT === */
.contact-card-main {
    display: grid;
    gap: clamp(var(--space-6), 5vw, var(--space-10));
    align-items: start;
    margin-bottom: clamp(var(--space-12), 8vw, var(--space-20));
}

/* Mobile-First: Stack vertically */
@media (max-width: 767px) {
    .contact-card-main {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
}

/* Tablet and Desktop: Side by side */
@media (min-width: 768px) {
    .contact-card-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-10);
    }
}

@media (min-width: 1200px) {
    .contact-card-main {
        grid-template-columns: 1.2fr 0.8fr;
        gap: var(--space-12);
    }
}

/* === PROFILE CARD === */
.profile-card {
    background: white;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-spring);
    position: relative;
    cursor: pointer;
    width: 100%;
}

    .profile-card:hover {
        transform: translateY(-4px) scale(1.01);
        box-shadow: var(--shadow-2xl);
    }

    .profile-card:active {
        transform: translateY(-2px) scale(1.005);
        transition: all 0.1s ease;
    }

.profile-image-container {
    position: relative;
    overflow: hidden;
    height: clamp(280px, 35vw, 450px);
    background: var(--neutral-100);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.profile-card:hover .profile-image {
    transform: scale(1.03);
}

.profile-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 40%, rgba(0, 0, 0, 0.8) 100%);
    padding: clamp(var(--space-4), 4vw, var(--space-6));
    color: white;
}

.profile-name {
    font-size: clamp(1.25rem, 4vw, 1.75rem);
    font-weight: 700;
    margin-bottom: var(--space-1);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.profile-title {
    font-size: clamp(0.875rem, 2.5vw, 1.125rem);
    font-weight: 500;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    line-height: 1.4;
}

.download-indicator {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: clamp(44px, 10vw, 56px);
    height: clamp(44px, 10vw, 56px);
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-600);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-spring);
}

.profile-card:hover .download-indicator {
    opacity: 1;
    transform: scale(1);
}

/* === QR CODE SECTION - MOBILE OPTIMIZED === */
.qr-code-section {
    background: white;
    border-radius: var(--radius-2xl);
    padding: clamp(var(--space-4), 4vw, var(--space-8));
    box-shadow: var(--shadow-lg);
    text-align: center;
    position: relative;
    width: 100%;
}

    .qr-code-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
        border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    }

.qr-code-header {
    margin-bottom: clamp(var(--space-4), 4vw, var(--space-6));
}

.qr-code-title {
    font-size: clamp(1.125rem, 4vw, 1.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.2;
}

.qr-code-description {
    color: var(--text-secondary);
    font-size: clamp(0.875rem, 2.5vw, 1rem);
    line-height: 1.5;
}

.qr-code-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(var(--space-3), 3vw, var(--space-4));
    margin-bottom: clamp(var(--space-4), 4vw, var(--space-6));
}

/* === QR CODE DISPLAY - RESPONSIVE SIZES === */
.qr-code-display {
    background: white;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid var(--border-light);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
    /* Mobile: Larger QR code for better scanning */
    width: min(280px, 80vw);
    height: min(280px, 80vw);
    /* Add white padding around QR code for better scanning */
    padding: clamp(12px, 3vw, 16px);
}

/* Tablet and up: Smaller QR code */
@media (min-width: 768px) {
    .qr-code-display {
        width: clamp(200px, 25vw, 250px);
        height: clamp(200px, 25vw, 250px);
        padding: 16px;
    }
}

/* Large desktop: Fixed optimal size */
@media (min-width: 1200px) {
    .qr-code-display {
        width: 240px;
        height: 240px;
        padding: 16px;
    }
}

.qr-code-display:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-md);
    transform: scale(1.02);
}

.qr-code-display:active {
    transform: scale(0.98);
    transition: all 0.1s ease;
}

.qr-code-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-base);
    /* Ensure crisp QR code rendering */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

.qr-code-display:hover .qr-code-image {
    transform: scale(1.02);
}

/* === URL DISPLAY === */
.qr-code-url {
    font-family: 'Courier New', monospace;
    font-size: clamp(0.75rem, 2vw, 0.875rem);
    background: var(--bg-tertiary);
    padding: clamp(var(--space-2), 2vw, var(--space-3)) clamp(var(--space-3), 3vw, var(--space-4));
    border-radius: var(--radius-base);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
    word-break: break-all;
    user-select: all;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 100%;
    box-sizing: border-box;
    line-height: 1.4;
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .qr-code-url:hover,
    .qr-code-url:focus {
        background: var(--primary-50);
        border-color: var(--primary-300);
        color: var(--primary-700);
        outline: none;
    }

/* === ACTION BUTTONS === */
.qr-code-actions {
    display: flex;
    gap: clamp(var(--space-2), 2vw, var(--space-3));
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
}

.qr-action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: clamp(var(--space-3), 3vw, var(--space-4)) clamp(var(--space-4), 4vw, var(--space-6));
    background: var(--primary-500);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-spring);
    position: relative;
    overflow: hidden;
    min-height: var(--touch-target-comfortable);
    font-size: clamp(0.875rem, 2.5vw, 1rem);
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* Mobile: Full width buttons */
@media (max-width: 480px) {
    .qr-code-actions {
        flex-direction: column;
        gap: var(--space-3);
    }

    .qr-action-btn {
        width: 100%;
        min-height: 56px; /* Larger touch target on mobile */
    }
}

/* Tablet and up: Side by side buttons */
@media (min-width: 481px) {
    .qr-action-btn {
        flex: 1;
        max-width: 200px;
    }
}

.qr-action-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.qr-action-btn:hover::before {
    width: 300px;
    height: 300px;
}

.qr-action-btn:hover {
    background: var(--primary-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.qr-action-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-base);
}

.qr-action-btn.secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-medium);
}

    .qr-action-btn.secondary:hover {
        background: var(--primary-50);
        color: var(--primary-600);
        border-color: var(--primary-300);
    }

.qr-action-btn span,
.qr-action-btn svg {
    position: relative;
    z-index: 1;
}

/* === SUCCESS MESSAGE === */
.copy-success {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--success);
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    max-width: 90vw;
    text-align: center;
}

    .copy-success.show {
        opacity: 1;
        visibility: visible;
        animation: successPulse 0.6s ease-out;
    }

@keyframes successPulse {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.05);
    }

    100% {
        transform: translate(-50%, -50%) scale(1);
    }
}

/* === FEATURES SECTION === */
.contact-features {
    display: grid;
    gap: clamp(var(--space-4), 4vw, var(--space-6));
    margin-top: clamp(var(--space-8), 6vw, var(--space-16));
}

/* Mobile: Single column */
@media (max-width: 767px) {
    .contact-features {
        grid-template-columns: 1fr;
    }
}

/* Tablet: Two columns */
@media (min-width: 768px) and (max-width: 1199px) {
    .contact-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: Three columns */
@media (min-width: 1200px) {
    .contact-features {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: white;
    padding: clamp(var(--space-4), 4vw, var(--space-6));
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-base);
    border: 1px solid var(--border-light);
    transition: all var(--transition-spring);
    min-height: 180px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

    .feature-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: var(--primary-200);
    }

.feature-icon {
    width: clamp(48px, 10vw, 60px);
    height: clamp(48px, 10vw, 60px);
    background: var(--primary-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
    color: var(--primary-600);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    transition: all var(--transition-spring);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: var(--primary-500);
    color: white;
}

.feature-title {
    font-size: clamp(1rem, 3vw, 1.125rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    line-height: 1.3;
}

.feature-description {
    color: var(--text-secondary);
    font-size: clamp(0.875rem, 2vw, 0.95rem);
    line-height: 1.5;
    flex: 1;
}

/* === MOBILE-SPECIFIC OPTIMIZATIONS === */
@media (max-width: 480px) {
    .contact-card-section {
        padding: var(--space-12) 0;
    }

    .contact-card-container {
        padding: 0 var(--space-4);
    }

    .contact-card-header {
        margin-bottom: var(--space-6);
    }

    .qr-code-section {
        padding: var(--space-4);
        border-radius: var(--radius-xl);
    }

    .profile-image-container {
        height: clamp(240px, 60vw, 320px);
    }

    .profile-overlay {
        padding: var(--space-3);
    }

    /* Ensure QR code is always scannable on small screens */
    .qr-code-display {
        width: min(260px, 85vw);
        height: min(260px, 85vw);
        border-width: 2px;
    }
}

/* === LANDSCAPE MOBILE OPTIMIZATIONS === */
@media (max-width: 896px) and (orientation: landscape) {
    .contact-card-main {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-6);
    }

    .profile-image-container {
        height: clamp(200px, 30vh, 280px);
    }

    .qr-code-display {
        width: clamp(180px, 25vh, 220px);
        height: clamp(180px, 25vh, 220px);
    }
}

/* === HIGH DPI DISPLAYS === */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .qr-code-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
        image-rendering: pixelated;
    }
}

/* === ACCESSIBILITY IMPROVEMENTS === */
.qr-code-display:focus,
.qr-code-url:focus,
.profile-card:focus {
    outline: 3px solid var(--primary-300);
    outline-offset: 2px;
}

.qr-action-btn:focus-visible {
    outline: 3px solid var(--primary-300);
    outline-offset: 2px;
}

/* === DARK MODE SUPPORT === */
@media (prefers-color-scheme: dark) {
    .qr-code-display {
        background: white; /* Keep QR code background white for better scanning */
        border-color: var(--border-dark);
    }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .profile-card,
    .qr-action-btn,
    .feature-card,
    .qr-code-display {
        transition: none !important;
    }

    .copy-success.show {
        animation: none !important;
        opacity: 1;
        visibility: visible;
    }

    .qr-code-display:hover,
    .profile-card:hover {
        transform: none !important;
    }
}