/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: #2c3e50;
    font-weight: 700;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3498db;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #3498db;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 1.5s ease-in-out, transform 1.5s ease-in-out;
}

.slide.active {
    opacity: 1;
    transform: scale(1);
}

/* Smooth fade transition for better visual experience */
.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,0,0,0.1), transparent);
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    pointer-events: none;
}

.slide.active::before {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #3498db;
    transform: translateY(-2px);
}

.hero-stats {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 3rem;
    z-index: 3;
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    position: relative;
    z-index: 10;
    border: 2px solid transparent;
}

.dot.active {
    background: #3498db;
    transform: scale(1.3);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.5);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

.dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: transparent;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

.dot:hover::before {
    background: rgba(255, 255, 255, 0.1);
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat p {
    font-size: 1rem;
    opacity: 0.8;
}

/* Section Headers - Marble Enhanced */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 4;
}

.section-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: 
        radial-gradient(ellipse, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: headerGlow 8s ease-in-out infinite;
}

@keyframes headerGlow {
    0%, 100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section - Marble Background */
.about {
    padding: 100px 0;
    position: relative;
    background: 
        linear-gradient(135deg, #f8f9fa 0%, #e9ecef 25%, #dee2e6 50%, #ced4da 75%, #adb5bd 100%);
    overflow: hidden;
}


.about::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 70%
    );
    animation: marbleShimmer 15s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

.about .container {
    position: relative;
    z-index: 3;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 3rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.feature h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.feature p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Gallery Section - Marble Background */
.gallery {
    padding: 100px 0;
    position: relative;
    background: 
        linear-gradient(135deg, #ffffff 0%, #f8f9fa 25%, #e9ecef 50%, #dee2e6 75%, #ced4da 100%);
    overflow: hidden;
}


.gallery::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        -45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.08) 50%,
        transparent 70%
    );
    animation: marbleShimmer 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

.gallery .container {
    position: relative;
    z-index: 3;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.gallery-item:hover {
    transform: translateY(-10px);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.gallery-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.gallery-overlay i {
    font-size: 1.5rem;
    opacity: 0.8;
}

/* Colors Section - Marble Background */
.colors {
    padding: 100px 0;
    position: relative;
    background: 
        linear-gradient(135deg, #f8f9fa 0%, #e9ecef 20%, #dee2e6 40%, #ced4da 60%, #adb5bd 80%, #6c757d 100%);
    overflow: hidden;
}


.colors::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        60deg,
        transparent 30%,
        rgba(255, 255, 255, 0.12) 50%,
        transparent 70%
    );
    animation: marbleShimmer 25s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

.colors .container {
    position: relative;
    z-index: 3;
}

.colors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.color-item {
    text-align: center;
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.color-item:hover {
    transform: translateY(-5px);
}

.color-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.color-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
}

/* Contact Section - Marble Background */
.contact {
    padding: 100px 0;
    position: relative;
    background: 
        linear-gradient(135deg, #ffffff 0%, #f8f9fa 15%, #e9ecef 30%, #dee2e6 45%, #ced4da 60%, #adb5bd 75%, #6c757d 90%, #495057 100%);
    overflow: hidden;
}


.contact::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        30deg,
        transparent 30%,
        rgba(255, 255, 255, 0.1) 50%,
        transparent 70%
    );
    animation: marbleShimmer 30s ease-in-out infinite;
    pointer-events: none;
    z-index: 2;
}

.contact .container {
    position: relative;
    z-index: 3;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: #3498db;
    margin-top: 0.2rem;
}

.contact-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #555;
    line-height: 1.6;
}

.contact-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #3498db;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3498db;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* Gallery Modal */
.gallery-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    margin: auto;
    padding: 20px;
    width: 90%;
    max-width: 1000px;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
}

.modal-content img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.modal-info {
    color: white;
    margin-top: 2rem;
}

.modal-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.modal-info p {
    font-size: 1.2rem;
    opacity: 0.8;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 2001;
}

.close:hover {
    color: #3498db;
}

.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 2rem;
    padding: 15px 20px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.nav-btn:hover {
    background: rgba(52, 152, 219, 0.8);
    transform: scale(1.1);
}

#prev-btn {
    left: 20px;
}

#next-btn {
    right: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .nav-menu li {
        margin: 1rem 0;
    }

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

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.1;
        margin-bottom: 1rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 1rem;
        width: 200px;
    }

    .hero-stats {
        flex-direction: row;
        gap: 1.5rem;
        bottom: 80px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat h3 {
        font-size: 2rem;
    }

    .stat p {
        font-size: 0.9rem;
    }

    .slider-dots {
        bottom: 20px;
        gap: 8px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature {
        padding: 1.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .gallery-item img {
        height: 250px;
    }

    .colors-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 1.5rem;
    }

    .color-item {
        padding: 1rem;
    }

    .color-item img {
        height: 120px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

    .modal-content {
        width: 95%;
        padding: 10px;
    }

    .modal-nav {
        padding: 0 10px;
    }

    .nav-btn {
        font-size: 1.5rem;
        padding: 10px 15px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
        padding: 0 10px;
    }

    .hero-subtitle {
        font-size: 0.9rem;
        padding: 0 15px;
    }

    .hero-buttons {
        gap: 0.6rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
        width: 180px;
    }

    .hero-stats {
        gap: 1rem;
        bottom: 70px;
    }

    .stat h3 {
        font-size: 1.8rem;
    }

    .stat p {
        font-size: 0.8rem;
    }

    .slider-dots {
        bottom: 15px;
        gap: 6px;
    }

    .dot {
        width: 8px;
        height: 8px;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .section-header p {
        font-size: 0.9rem;
    }

    .gallery-item img {
        height: 220px;
    }

    .color-item img {
        height: 100px;
    }

    .colors-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 1rem;
    }

    .color-item {
        padding: 0.8rem;
    }

    .feature {
        padding: 1.2rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px;
        font-size: 0.9rem;
    }

    .container {
        padding: 0 15px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Mobile Touch Optimizations */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

input, textarea {
    -webkit-user-select: text;
    -khtml-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Prevent zoom on input focus on iOS */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    select, textarea, input[type="text"], input[type="password"], 
    input[type="datetime"], input[type="datetime-local"], 
    input[type="date"], input[type="month"], input[type="time"], 
    input[type="week"], input[type="number"], input[type="email"], 
    input[type="url"], input[type="search"], input[type="tel"], 
    input[type="color"] {
        font-size: 16px;
    }
}

/* Mobile Performance Optimizations */
.hero-slider {
    will-change: transform;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.slide {
    will-change: opacity, transform;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.hero {
    -webkit-overflow-scrolling: touch;
    overflow-scrolling: touch;
}

/* Enhanced touch feedback for mobile */
@media (max-width: 768px) {
    .hero {
        transition: transform 0.15s ease-out;
    }
    
    .dot {
        width: 14px;
        height: 14px;
        margin: 0 6px;
    }
    
    .dot.active {
        transform: scale(1.4);
    }
    
    /* Improve touch targets */
    .slider-dots {
        padding: 10px;
        background: rgba(0, 0, 0, 0.1);
        border-radius: 25px;
        backdrop-filter: blur(10px);
    }
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-item,
.color-item,
.feature {
    animation: fadeInUp 0.6s ease forwards;
}

/* WhatsApp Links */
.contact-item a,
.footer-section a {
    transition: all 0.3s ease;
}

.contact-item a:hover,
.footer-section a:hover {
    color: #128C7E !important;
    text-decoration: underline !important;
    transform: scale(1.05);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #3498db;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2980b9;
}

/* WhatsApp Floating Button - Marble Effect */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
    animation: bounce 2s infinite;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #dee2e6 100%);
    color: #2c3e50;
    padding: 12px 16px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.8),
        inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

/* Marble Vein Pattern */
.whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(108, 117, 125, 0.1) 31%, rgba(108, 117, 125, 0.1) 32%, transparent 33%),
        linear-gradient(-45deg, transparent 30%, rgba(73, 80, 87, 0.08) 31%, rgba(73, 80, 87, 0.08) 32%, transparent 33%),
        linear-gradient(90deg, transparent 40%, rgba(52, 58, 64, 0.06) 41%, rgba(52, 58, 64, 0.06) 42%, transparent 43%),
        radial-gradient(ellipse at 20% 80%, rgba(108, 117, 125, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(73, 80, 87, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 40%, rgba(52, 58, 64, 0.06) 0%, transparent 50%);
    background-size: 
        100px 100px,
        120px 120px,
        80px 80px,
        200px 200px,
        150px 150px,
        180px 180px;
    animation: marbleFlow 8s ease-in-out infinite;
    pointer-events: none;
}

/* Marble Shimmer Effect */
.whatsapp-btn::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255, 255, 255, 0.3) 50%,
        transparent 70%
    );
    animation: marbleShimmer 3s ease-in-out infinite;
    pointer-events: none;
}

.whatsapp-btn:hover {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 50%, #ced4da 100%);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 
        0 12px 35px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    color: #495057;
    text-decoration: none;
}

.whatsapp-btn:hover::before {
    animation-duration: 4s;
}

.whatsapp-btn:hover::after {
    animation-duration: 1.5s;
}

.whatsapp-btn i {
    font-size: 20px;
    color: #25D366;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
}

.whatsapp-btn:hover i {
    color: #128C7E;
    transform: scale(1.1);
    transition: all 0.3s ease;
}

.whatsapp-text {
    font-family: 'Inter', sans-serif;
    position: relative;
    z-index: 2;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    font-weight: 700;
    letter-spacing: 0.5px;
}


/* Marble Shimmer Animation */
@keyframes marbleShimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
        opacity: 0;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
        opacity: 0;
    }
}

/* Bounce animation for WhatsApp button */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-5px);
    }
    60% {
        transform: translateY(-3px);
    }
}

/* Mobile responsive for WhatsApp button */
@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 15px;
        left: 15px;
    }
    
    .whatsapp-btn {
        padding: 10px 14px;
        font-size: 13px;
        box-shadow: 
            0 6px 20px rgba(0, 0, 0, 0.12),
            inset 0 1px 0 rgba(255, 255, 255, 0.8),
            inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    }
    
    .whatsapp-text {
        display: none;
    }
    
    .whatsapp-btn i {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .whatsapp-float {
        bottom: 10px;
        left: 10px;
    }
    
    .whatsapp-btn {
        padding: 8px 12px;
        border-radius: 50%;
        width: 55px;
        height: 55px;
        justify-content: center;
        box-shadow: 
            0 8px 25px rgba(0, 0, 0, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.8),
            inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    }
    
    .whatsapp-btn:hover {
        transform: translateY(-3px) scale(1.1);
    }
}