/* ===================================
   Global Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores del logo INFOTAX.US */
    --primary-green: #00C853;        /* Verde vibrante del checkmark y TAX */
    --primary-orange: #FF6B35;       /* Naranja del círculo y .US */
    --primary-teal: #2C5F7A;         /* Azul teal de INFO */
    --accent-yellow: #FFD700;        /* Amarillo del círculo pequeño */
    --accent-lime: #B8E994;          /* Verde lima del círculo pequeño */
    --light-gray: #E8E8E8;           /* Gris claro del trapezoide */
    
    /* Colores derivados para uso general */
    --primary-color: var(--primary-green);
    --secondary-color: var(--primary-orange);
    --accent-color: var(--primary-teal);
    --highlight-yellow: var(--accent-yellow);
    --highlight-lime: var(--accent-lime);
    --text-dark: #1a1a1a;
    --text-light: #6b7280;
    --bg-light: #f5f5f5;
    --bg-lighter: #fafafa;
    --bg-alt: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-green: 0 4px 15px rgba(0, 200, 83, 0.3);
    --shadow-orange: 0 4px 15px rgba(255, 107, 53, 0.3);
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===================================
   Navigation
   =================================== */
.navbar {
    padding: 1rem 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    will-change: transform, opacity;
}

.navbar.navbar-static {
    position: static !important;
    transform: translateY(0);
    opacity: 1;
    background-color: rgba(255, 255, 255, 1) !important;
}

.navbar.navbar-fixed {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    animation: slideDownFadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
}

@keyframes slideDownFadeIn {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.navbar.navbar-fixed.scrolled {
    padding: 0.75rem 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
    padding: 0;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 60px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
}

.navbar-brand:hover .logo-img {
    transform: scale(1.05);
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-dark) !important;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-green) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background: linear-gradient(90deg, var(--primary-green), var(--primary-orange));
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

/* ===================================
   Hero Section
   =================================== */
.hero-section {
    color: var(--white);
    padding-top: 0;
    position: relative;
    overflow: hidden;
    height: 100vh;
    max-height: 100vh;
}

/* Owl Carousel Background */
.hero-carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-carousel .owl-stage-outer,
.hero-carousel .owl-stage,
.hero-carousel .owl-item {
    height: 100%;
}

.hero-slide {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    position: relative;
}

.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 95, 122, 0.6) 0%, rgba(0, 200, 83, 0.5) 50%, rgba(255, 107, 53, 0.6) 100%);
    z-index: 1;
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    align-items: center;
    padding-top: 80px;
    box-sizing: border-box;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

/* Ocultar controles de Owl Carousel */
.hero-carousel .owl-nav,
.hero-carousel .owl-dots {
    display: none !important;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease;
}

.hero-section .lead {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-icon {
    font-size: 15rem;
    color: rgba(255, 255, 255, 0.2);
    animation: float 3s ease-in-out infinite;
}

.hero-logo {
    max-width: 100%;
    height: auto;
    max-height: 500px;
    width: auto;
    object-fit: contain;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

/* ===================================
   Buttons
   =================================== */
.btn-primary {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    color: var(--white);
}

.btn-primary:hover {
    background-color: #00B047;
    border-color: #00B047;
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

.btn-outline-primary {
    border-color: var(--primary-green);
    color: var(--primary-green);
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-green);
    color: var(--white);
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

/* ===================================
   Hero Section Buttons
   =================================== */
.hero-section .btn-primary {
    background-color: var(--white);
    border-color: var(--white);
    color: var(--primary-orange);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.hero-section .btn-primary:hover {
    background-color: var(--primary-orange);
    border-color: var(--primary-orange);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.hero-section .btn-outline-primary {
    border-color: var(--white);
    color: var(--white);
    border-width: 2px;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    font-weight: 600;
}

.hero-section .btn-outline-primary:hover {
    background-color: var(--white);
    color: var(--primary-teal);
    border-color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
}

/* Apptoto Booking Button in Hero */
.hero-section .btn-success {
    background: linear-gradient(135deg, var(--primary-teal) 0%, var(--primary-green) 100%);
    border: none;
    color: var(--white);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(44, 95, 122, 0.3);
    transition: all 0.3s ease;
}

.hero-section .btn-success:hover {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-teal) 100%);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(44, 95, 122, 0.5);
}

/* ===================================
   Section Headings
   =================================== */
.display-5 {
    background: linear-gradient(135deg, var(--primary-teal), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Section Backgrounds (Alternating)
   =================================== */
.section-white {
    background-color: var(--white);
}

.section-alt {
    background-color: var(--bg-alt);
}
.service-card {
    transition: all 0.3s ease;
    border-radius: 1rem;
    overflow: hidden;
    border-top: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--primary-green);
    background: linear-gradient(to bottom, rgba(0, 200, 83, 0.02), transparent);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    color: var(--primary-orange);
    transform: scale(1.1);
}

.service-card .card-title {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* ===================================
   About Section
   =================================== */

.about-image-placeholder {
    padding: 2rem;
}

.about-image-container {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin-top: 0.25rem;
}

.feature-item h5 {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.about-icon {
    font-size: 15rem;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.2;
}

/* ===================================
   IRS Logos Section
   =================================== */
.irs-logos-container {
    padding: 2rem 0;
}

.irs-logos {
    padding: 1rem 0;
    gap: 2rem;
}

.irs-logo {
    max-width: 100%;
    height: auto;
    max-height: 200px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.irs-logo:hover {
    transform: scale(1.1);
    opacity: 1;
}

/* ===================================
   Tax Updates Section
   =================================== */
.tax-info-card {
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.95) 100%);
    border-top: 4px solid var(--primary-green);
    transition: all 0.3s ease;
}

.tax-info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.15) !important;
}

.tax-info-icon {
    font-size: 3rem;
    color: var(--primary-green);
    background: linear-gradient(135deg, rgba(0, 200, 83, 0.1), rgba(44, 95, 122, 0.1));
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    animation: pulseIcon 2s ease-in-out infinite;
}

@keyframes pulseIcon {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.tax-info-content {
    margin-top: 1rem;
}

.tax-info-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 0.75rem;
    border-left: 3px solid var(--primary-green);
    transition: all 0.3s ease;
}

.tax-info-item:hover {
    background: rgba(0, 200, 83, 0.05);
    border-left-color: var(--primary-orange);
    transform: translateX(5px);
}

.tax-info-item h5 {
    color: var(--text-dark);
    font-size: 1.1rem;
}

.tax-info-item .text-success {
    color: var(--primary-green) !important;
    font-size: 1.25rem;
}

.tax-info-item .text-warning {
    color: var(--primary-orange) !important;
    font-size: 1.25rem;
}

.tax-info-item p {
    line-height: 1.7;
    font-size: 1rem;
}

.tax-info-card .btn-outline-primary {
    border-color: var(--primary-green);
    color: var(--primary-green);
    background-color: transparent;
}

.tax-info-card .btn-outline-primary:hover {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}


/* ===================================
   Testimonials Section
   =================================== */
.testimonial-card {
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.testimonial-card .card-body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.testimonial-card .card-text {
    flex-grow: 1;
    margin-bottom: 1rem;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--primary-green) !important;
}

.testimonial-avatar {
    font-size: 3rem;
    color: var(--primary-orange);
    flex-shrink: 0;
}

.text-warning {
    color: var(--accent-yellow) !important;
}

/* ===================================
   Contact Section
   =================================== */
.contact-icon {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.contact-info:hover .contact-icon {
    color: var(--primary-orange);
    transform: scale(1.1);
}

.contact-info:hover .fa-whatsapp {
    color: var(--primary-orange) !important;
    transform: scale(1.1);
}

.contact-info h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #e5e7eb;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(0, 200, 83, 0.1);
}

/* ===================================
   Footer
   =================================== */
footer {
    margin-top: 4rem;
    background: linear-gradient(135deg, var(--primary-teal) 0%, #1a4a5c 100%) !important;
}

footer a {
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.25rem;
}

footer a:hover {
    color: var(--primary-orange) !important;
    transform: translateY(-3px);
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablets and smaller desktops */
@media (max-width: 992px) {
    .hero-section h1 {
        font-size: 3rem;
    }
    
    .hero-section .lead {
        font-size: 1.1rem;
    }
    
    .service-card {
        margin-bottom: 1.5rem;
    }
    
    .tax-info-card .card-body {
        padding: 3rem !important;
    }
}

/* Tablets */
@media (max-width: 768px) {
    .hero-section {
        min-height: 100vh;
        height: 100vh;
    }
    
    .hero-slide {
        height: 100%;
    }
    
    .hero-content {
        height: 100vh;
        padding-top: 70px;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-section .btn {
        font-size: 0.9rem;
        padding: 0.6rem 1.5rem;
    }
    
    .hero-icon,
    .about-icon {
        font-size: 8rem;
    }
    
    .hero-logo {
        max-height: 300px;
    }
    
    .display-5 {
        font-size: 2rem;
    }
    
    .irs-logo {
        max-height: 80px;
    }
    
    .irs-logos {
        gap: 2rem !important;
        padding: 0.5rem 0;
    }
    
    .irs-logos-container {
        margin-top: 2rem;
        padding-top: 2rem;
    }
    
    .about-image-container {
        min-height: 300px;
    }
    
    .about-placeholder-icon {
        font-size: 3rem;
    }
    
    .logo-img {
        height: 45px;
        max-width: 150px;
    }
    
    .service-card .card-body {
        padding: 2rem !important;
    }
    
    .service-icon {
        font-size: 2.5rem;
    }
    
    .tax-info-card .card-body {
        padding: 2rem !important;
    }
    
    .tax-info-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .tax-info-item {
        padding: 0.75rem;
    }
    
    .tax-info-item h5 {
        font-size: 1rem;
    }
    
    .tax-info-item p {
        font-size: 0.9rem;
    }
    
    .tax-info-card .btn {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }
    
    .contact-info {
        margin-bottom: 2rem;
    }
    
    .contact-icon {
        font-size: 2rem;
    }
    
    .feature-item {
        margin-bottom: 2rem;
    }
    
    .feature-icon {
        font-size: 1.25rem;
    }
    
    /* Protection section responsive */
    .mt-5.pt-4.border-top {
        margin-top: 2rem !important;
        padding-top: 1.5rem !important;
    }
    
    .mt-5.pt-4.border-top i.fa-shield-alt {
        font-size: 2rem !important;
    }
    
    .mt-5.pt-4.border-top h5 {
        font-size: 1.1rem;
    }
    
    .mt-5.pt-4.border-top p {
        font-size: 0.9rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 0;
    }
    
    footer .row {
        text-align: center;
    }
    
    footer .col-md-6 {
        margin-bottom: 1rem;
    }
    
    footer .text-md-end {
        text-align: center !important;
    }
}

/* Mobile devices */
@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-section .lead {
        font-size: 0.95rem;
    }
    
    .hero-section .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .hero-section .d-flex.gap-3 {
        flex-direction: column;
        gap: 0.5rem !important;
    }
    
    .hero-logo {
        max-height: 200px;
        margin-top: -1.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-image {
        margin-top: -2rem;
    }
    
    .display-5 {
        font-size: 1.75rem;
    }
    
    .service-card .card-body {
        padding: 1.5rem !important;
    }
    
    .service-icon {
        font-size: 2rem;
    }
    
    .service-card .card-title {
        font-size: 1.1rem;
    }
    
    .tax-info-card .card-body {
        padding: 1.5rem !important;
    }
    
    .tax-info-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .tax-info-item {
        padding: 0.5rem;
    }
    
    .tax-info-item h5 {
        font-size: 0.95rem;
    }
    
    .tax-info-item p {
        font-size: 0.85rem;
    }
    
    .tax-info-card .d-flex.flex-wrap.gap-3 {
        flex-direction: column;
    }
    
    .tax-info-card .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .about-image-container {
        min-height: 250px;
    }
    
    .about-placeholder-icon {
        font-size: 2.5rem;
    }
    
    .about-icon {
        font-size: 6rem;
    }
    
    .feature-item h5 {
        font-size: 1rem;
    }
    
    .feature-item p {
        font-size: 0.9rem;
    }
    
    .contact-info h5 {
        font-size: 1rem;
    }
    
    .contact-info p {
        font-size: 0.9rem;
    }
    
    .testimonial-avatar {
        font-size: 2.5rem;
    }
    
    .card-body {
        padding: 1.5rem !important;
    }
    
    .map-container {
        height: 400px !important;
    }
    
    .map-container iframe {
        height: 400px !important;
    }
    
    .logo-img {
        height: 40px;
        max-width: 120px;
    }
    
    .navbar {
        padding: 0.75rem 0;
    }
    
    .section-white,
    .section-alt {
        padding: 3rem 0 !important;
    }
    
    .py-5 {
        padding-top: 3rem !important;
        padding-bottom: 3rem !important;
    }
    
    .mb-5 {
        margin-bottom: 2rem !important;
    }
    
    .irs-logo {
        max-height: 60px;
    }
    
    .irs-logos {
        gap: 1.5rem !important;
    }
    
    /* Protection section mobile */
    .mt-5.pt-4.border-top {
        margin-top: 1.5rem !important;
        padding-top: 1rem !important;
    }
    
    .mt-5.pt-4.border-top i.fa-shield-alt {
        font-size: 1.75rem !important;
    }
    
    .mt-5.pt-4.border-top h5 {
        font-size: 1rem;
    }
    
    .mt-5.pt-4.border-top p {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    .mt-5.pt-4.border-top .d-flex {
        flex-direction: column;
        text-align: center;
    }
    
    .mt-5.pt-4.border-top .me-3 {
        margin-right: 0 !important;
        margin-bottom: 0.75rem;
    }
}

/* ===================================
   Animations
   =================================== */
.fade-in {
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Scroll to Top Button (Mobile Only) */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.4rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.5), 0 0 0 4px rgba(13, 110, 253, 0.1);
    z-index: 999;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px) scale(0.9);
    padding: 0;
    line-height: 1;
    margin: 0;
}

.scroll-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0) scale(1);
}

.scroll-to-top i {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

.scroll-to-top:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 25px rgba(13, 110, 253, 0.7), 0 0 0 4px rgba(13, 110, 253, 0.2);
    background: linear-gradient(135deg, #0a58ca 0%, #0d6efd 100%);
}

.scroll-to-top:active {
    transform: translateY(-2px) scale(1);
}

/* Show scroll to top button only on mobile */
@media (min-width: 768px) {
    .scroll-to-top {
        display: none !important;
    }
}

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   WhatsApp Floating Button
   =================================== */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    left: 20px;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    text-decoration: none;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
    overflow: visible;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float.clicked {
    animation: pulse 2s infinite, expandButton 0.5s ease forwards;
}

.whatsapp-icon-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-receptionist {
    position: absolute;
    font-size: 1.8rem;
    color: var(--white);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    animation: bounceReceptionist 2s ease-in-out infinite;
}

.whatsapp-float.clicked .whatsapp-receptionist {
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) scale(0);
    animation: none;
}

.whatsapp-icon {
    position: absolute;
    font-size: 0;
    color: var(--white);
    left: 50%;
    bottom: 10px;
    transform: translateX(-50%) scale(0);
    z-index: 2;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    opacity: 0;
}

.whatsapp-float.clicked .whatsapp-icon {
    font-size: 2.5rem;
    transform: translate(-50%, -50%) scale(1);
    top: 50%;
    bottom: auto;
    opacity: 1;
    animation: bounceWhatsapp 0.6s ease 0.3s;
}

/* Tooltip */
.whatsapp-tooltip {
    position: absolute;
    left: 85px;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.85);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
    z-index: 1001;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: pulseTooltip 2s ease-in-out infinite;
}

.whatsapp-tooltip::before {
    content: '';
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-right-color: rgba(0, 0, 0, 0.85);
}

.whatsapp-float.clicked .whatsapp-tooltip,
.whatsapp-tooltip.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-50%) translateX(-10px);
}

@keyframes pulse {
    0% {
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.7);
    }
    100% {
        box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    }
}

@keyframes pulseTooltip {
    0%, 100% {
        opacity: 1;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translateY(-50%) scale(1.05);
    }
}

@keyframes bounceReceptionist {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes bounceWhatsapp {
    0% {
        transform: translateX(-50%) scale(0);
    }
    50% {
        transform: translateX(-50%) scale(1.2);
    }
    100% {
        transform: translateX(-50%) scale(1);
    }
}

@keyframes expandButton {
    0% {
        width: 70px;
        height: 70px;
    }
    100% {
        width: 80px;
        height: 80px;
    }
}

/* Mobile devices - WhatsApp adjustments */
@media (max-width: 576px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 10px;
        left: 10px;
    }
    
    .whatsapp-float.clicked {
        width: 65px;
        height: 65px;
    }
    
    .scroll-to-top {
        bottom: 10px;
        right: 10px;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .whatsapp-receptionist {
        font-size: 1.3rem;
    }
    
    .whatsapp-float.clicked .whatsapp-icon {
        font-size: 2rem;
    }
    
    .whatsapp-tooltip {
        left: 70px;
        font-size: 0.7rem;
        padding: 5px 8px;
        max-width: 120px;
    }
    
    .whatsapp-tooltip::before {
        border-width: 5px;
    }
}