/* ============================================
   RESET Y ESTILOS BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de colores */
    --color-primary: #1a365d;
    --color-secondary: #e53e3e;
    --color-dark: #2d3748;
    --color-light: #f7fafc;
    --color-white: #ffffff;
    --color-gray: #718096;
    --color-gray-light: #e2e8f0;
    --color-success: #38a169;
    
    /* Tipografía */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Para compensar header fijo */
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--color-secondary);
    border-radius: 2px;
}

/* ============================================
   TIPOGRAFÍA Y BOTONES
   ============================================ */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #c53030;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white); /* ⬅️ CAMBIADO: Texto SIEMPRE blanco */
    border: 2px solid var(--color-white); /* ⬅️ CAMBIADO: Borde SIEMPRE blanco */
}

.btn-secondary:hover {
    background-color: var(--color-white); /* ⬅️ CAMBIADO: Fondo blanco al hover */
    color: var(--color-primary); /* ⬅️ CAMBIADO: Texto azul al hover */
    transform: translateY(-2px);
}

.btn-cotizar {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 600;
}

.btn-cotizar:hover {
    background-color: #c53030;
    box-shadow: var(--shadow-md);
}

.btn-submit {
    background-color: var(--color-secondary);
    color: var(--color-white);
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
}

.btn-submit:hover {
    background-color: #c53030;
    box-shadow: var(--shadow-md);
}

/* ============================================
   HEADER Y NAVEGACIÓN
   ============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem var(--spacing-sm);
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--color-primary);
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-dark);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width 0.3s ease;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
}

/* Menú Hamburguesa */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ============================================
   HERO / BANNER PRINCIPAL
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 80px; /* Compensar header fijo */
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 54, 93, 0.7);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    padding: 0 var(--spacing-sm);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   SECCIÓN SERVICIOS
   ============================================ */
.services {
    background-color: var(--color-light);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

.services-note {
    text-align: center;
    font-style: italic;
    color: var(--color-gray);
    padding: var(--spacing-sm);
    background-color: rgba(229, 62, 62, 0.1);
    border-radius: var(--border-radius);
    max-width: 800px;
    margin: 0 auto;
}

.services-note i {
    color: var(--color-secondary);
    margin-right: 8px;
}

/* ============================================
   SECCIÓN VENTAJAS
   ============================================ */
.advantages-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .advantages-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.advantage-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.advantage-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.advantage-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.advantage-card p {
    color: var(--color-gray);
}

.company-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
    .company-info {
        grid-template-columns: repeat(3, 1fr);
    }
}

.info-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--color-secondary);
}

.info-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card h3 i {
    color: var(--color-secondary);
}

.info-card p {
    color: var(--color-gray);
}

/* ============================================
   SECCIÓN PORTAFOLIO
   ============================================ */
.portfolio {
    background-color: var(--color-light);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-light);
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn.active,
.filter-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    aspect-ratio: 4/3;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(26, 54, 93, 0.9));
    color: var(--color-white);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

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

.portfolio-overlay h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.portfolio-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 0;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-sm);
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--color-white);
    font-size: 3rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--color-secondary);
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 70vh;
    display: block;
    margin: 0 auto;
    border-radius: var(--border-radius);
}

.lightbox-caption {
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-sm);
    background-color: rgba(26, 54, 93, 0.8);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.lightbox-caption h3 {
    margin-bottom: 5px;
}

/* ============================================
   FORMULARIO DE COTIZACIÓN
   ============================================ */
.contact-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 992px) {
    .contact-container {
        grid-template-columns: 2fr 1fr;
    }
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--color-secondary);
}

.error-message {
    color: var(--color-secondary);
    font-size: 0.85rem;
    margin-top: 5px;
    min-height: 20px;
}

.form-message {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: rgba(72, 187, 120, 0.1);
    color: #38a169;
    border: 1px solid #38a169;
    display: block;
}

.form-message.error {
    background-color: rgba(245, 101, 101, 0.1);
    color: var(--color-secondary);
    border: 1px solid var(--color-secondary);
    display: block;
}

.form-note {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-top: var(--spacing-sm);
    text-align: center;
}

/* ============================================
   ESTILOS PARA INFORMACIÓN DE CONTACTO
   ============================================ */

.contact-details {
    height: 100%;
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--color-secondary);
    margin-top: 5px;
    flex-shrink: 0;
}

.contact-item div {
    flex-grow: 1;
}

.contact-item h4 {
    color: var(--color-primary);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--color-gray);
    margin: 0;
    line-height: 1.5;
}

/* Estilos específicos para teléfonos */
.contact-phone-item {
    background-color: rgba(26, 54, 93, 0.05);
    padding: 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-secondary);
}

.phone-label {
    display: inline-block;
    font-weight: 600;
    color: var(--color-primary);
    min-width: 120px;
}

.contact-item a {
    color: var(--color-secondary);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.whatsapp-link {
    color: var(--color-success) !important;
    font-weight: 600;
}

.whatsapp-link:hover {
    color: #2d8c54 !important;
}

.contact-address {
    background-color: rgba(26, 54, 93, 0.05);
    padding: 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.contact-address p {
    margin-bottom: 5px;
}

.contact-address p:last-child {
    margin-bottom: 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-section h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--color-secondary);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-icon {
    font-size: 2.5rem;
}

.footer-logo h2 {
    color: var(--color-white);
    font-size: 1.8rem;
}

.footer-description {
    opacity: 0.9;
    line-height: 1.7;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.9;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--color-secondary);
    transform: translateX(5px);
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-bottom: var(--spacing-lg);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--color-secondary);
    transform: translateY(-3px);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    opacity: 0.9;
    margin-bottom: 8px;
    line-height: 1.5;
}

.footer-contact p:last-child {
    margin-bottom: 0;
}

.footer-contact i {
    color: var(--color-secondary);
    margin-top: 3px;
    flex-shrink: 0;
}

.footer-contact a {
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--color-secondary);
}

.footer-whatsapp {
    color: var(--color-success) !important;
    font-weight: 600;
}

.footer-whatsapp:hover {
    color: #25d366 !important;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 5px;
    opacity: 0.8;
}

.footer-note {
    font-size: 0.9rem;
    font-style: italic;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
}

/* ============================================
   BOTÓN VOLVER ARRIBA
   ============================================ */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: var(--shadow-md);
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

#back-to-top:hover {
    background-color: var(--color-secondary);
    transform: translateY(-3px);
}

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

/* Tablet (≥768px) */
@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2.8rem;
    }
}

/* Desktop (≥992px) */
@media (min-width: 992px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 4rem;
    }
}

/* Menú hamburguesa para móviles */
@media (max-width: 767px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--color-gray-light);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    /* Animación del hamburguesa cuando está activo */
    .hamburger.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .hamburger.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Ajustes para información de contacto en móviles */
    .contact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .contact-item i {
        margin-top: 0;
    }
    
    .phone-label {
        min-width: 100px;
    }
    
    .footer-contact p {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
}

/* Pantallas muy pequeñas (≤480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .footer-content {
        gap: var(--spacing-lg);
    }
}

/* ============================================
   ANIMACIONES PARA VENTAJAS (Scroll)
   ============================================ */

.advantage-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.advantage-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Diferentes retrasos para animación escalonada */
.advantage-card:nth-child(1) { transition-delay: 0.1s; }
.advantage-card:nth-child(2) { transition-delay: 0.2s; }
.advantage-card:nth-child(3) { transition-delay: 0.3s; }
.advantage-card:nth-child(4) { transition-delay: 0.4s; }

/* ============================================
   BOTÓN WHATSAPP FLOTANTE
   ============================================ */

.whatsapp-btn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background-color: #25D366; /* Verde WhatsApp oficial */
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
    z-index: 999;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    text-decoration: none;
}

/* Efecto de pulso (opcional pero atractivo) */
.whatsapp-btn::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #25D366;
    animation: pulse 2s infinite;
    z-index: -1;
    opacity: 0.7;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.4;
    }
    100% {
        transform: scale(1);
        opacity: 0.7;
    }
}

/* Efectos hover */
.whatsapp-btn:hover {
    background-color: #128C7E; /* Verde WhatsApp más oscuro */
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 18px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

/* Tooltip (mensaje emergente) */
.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background-color: var(--color-primary); /* #1a365d */
    color: white;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: all 0.3s ease;
    pointer-events: none;
    box-shadow: var(--shadow-md);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    transform: translateY(-50%);
    border-left: 6px solid var(--color-primary);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

/* Responsive: Tablet y móvil */
@media (max-width: 768px) {
    .whatsapp-btn {
        width: 56px;
        height: 56px;
        bottom: 20px;
        right: 20px;
        font-size: 26px;
    }
    
    .whatsapp-tooltip {
        display: none; /* Ocultar tooltip en móviles */
    }
    
    /* Mostrar el tooltip solo al hacer tap largo en móviles */
    .whatsapp-btn:active .whatsapp-tooltip {
        display: block;
        opacity: 1;
        transform: translateX(0);
        right: 65px;
    }
}

/* Asegurar que no se superponga con otros elementos fijos */
@media (max-width: 480px) {
    .whatsapp-btn {
        bottom: 80px; /* Espacio para evitar el botón "volver arriba" */
        right: 15px;
    }
}

/* ============================================
   LOGO PERSONALIZADO
   ============================================ */

.logo-img {
    height: 40px; /* Ajusta según el tamaño de tu logo */
    width: auto;
    display: block;
}

/* Header: Logo más pequeño */
.header-container .logo-img {
    height: 35px;
}

/* Footer: Logo un poco más grande */
.footer-logo .logo-img {
    height: 45px;
    margin-bottom: 10px;
}

/* Asegurar que el logo se vea bien en móviles */
@media (max-width: 767px) {
    .header-container .logo-img {
        height: 30px;
    }
    
    .footer-logo .logo-img {
        height: 40px;
    }
}

/* Ocultar los iconos de emoji que ya no usaremos */
.logo-icon {
    display: none;
}