/* ===================================
   RESET Y VARIABLES CSS
   =================================== */

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

:root {
    /* Colores principales */
    --primary-color: #2d7d32;
    --primary-light: #4caf50;
    --primary-dark: #1b5e20;
    --secondary-color: #8bc34a;
    --accent-color: #ff9800;
    
    /* Colores neutros */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #212529;
    
    /* Tipografía */
    --font-primary: 'Poppins', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===================================
   ESTILOS GENERALES
   =================================== */

html {
    scroll-behavior: smooth;
}

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   BOTONES
   =================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

/* ===================================
   HEADER Y NAVEGACIÓN
   =================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.navbar {
    padding: var(--spacing-md) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-logo i {
    font-size: var(--font-size-2xl);
    margin-right: var(--spacing-sm);
}

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

.nav-link {
    color: var(--dark-gray);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

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

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

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

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-3xl) 0;
    margin-top: 80px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero-text p {
    font-size: var(--font-size-lg);
    color: var(--gray);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--spacing-md);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.feature i {
    font-size: var(--font-size-xl);
}

/* ===================================
   SERVICES SECTION
   =================================== */

.services {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    border: 1px solid #e9ecef;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.service-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.02);
}

.service-card.featured:hover {
    transform: scale(1.02) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    margin-bottom: var(--spacing-lg);
}

.service-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: var(--spacing-xs) 0;
    color: var(--dark-gray);
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about {
    padding: var(--spacing-3xl) 0;
    background: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
}

.about-intro {
    font-size: var(--font-size-lg);
    color: var(--gray);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.about-features {
    margin-bottom: var(--spacing-2xl);
}

.about-feature {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.about-feature i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-top: var(--spacing-xs);
    flex-shrink: 0;
}

.about-feature h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.about-feature p {
    color: var(--gray);
    line-height: 1.6;
}

.stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray);
    font-weight: 500;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.experience-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    text-align: center;
    min-width: 100px;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.badge-text {
    font-size: var(--font-size-xs);
    color: var(--gray);
    font-weight: 600;
}

/* ===================================
   GALLERY SECTION
   =================================== */

.gallery {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

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

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    aspect-ratio: 4/3;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: var(--white);
    padding: var(--spacing-xl);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

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

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

.gallery-overlay h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.gallery-overlay p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ===================================
   TESTIMONIALS SECTION
   =================================== */

.testimonials {
    padding: var(--spacing-3xl) 0;
    background: var(--light-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

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

.stars {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.testimonial-card p {
    font-style: italic;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.testimonial-author strong {
    color: var(--primary-dark);
    font-weight: 600;
}

.testimonial-author span {
    display: block;
    color: var(--gray);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ===================================
   CONTACT SECTION
   =================================== */

.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-lg);
}

.contact-info p {
    font-size: var(--font-size-lg);
    color: var(--gray);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.contact-methods {
    margin-bottom: var(--spacing-2xl);
}

.contact-method {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-method i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    margin-top: var(--spacing-xs);
    flex-shrink: 0;
}

.contact-method h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===================================
   FORM STYLES
   =================================== */

.form {
    background: var(--light-gray);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    background: var(--white);
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 125, 50, 0.1);
}

.form-group label {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--white);
    padding: 0 var(--spacing-xs);
    color: var(--gray);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group select:focus + label,
.form-group input:valid + label,
.form-group textarea:valid + label,
.form-group select:valid + label {
    top: -8px;
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    font-size: var(--font-size-2xl);
    margin-right: var(--spacing-sm);
    color: var(--secondary-color);
}

.footer-section p {
    color: #adb5bd;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: #adb5bd;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: #adb5bd;
}

.footer-contact i {
    color: var(--secondary-color);
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid #495057;
    padding-top: var(--spacing-xl);
    text-align: center;
    color: #adb5bd;
}

/* ===================================
   FLOATING ELEMENTS
   =================================== */

.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: all var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background: #128c7e;
    transform: scale(1.1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-4xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-xl) 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .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-text h1 {
        font-size: var(--font-size-3xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card.featured {
        transform: none;
    }
    
    .stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 15px;
        right: 15px;
    }
    
    .back-to-top {
        bottom: 85px;
        right: 15px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-text h1 {
        font-size: var(--font-size-2xl);
    }
    
    .hero-text p {
        font-size: var(--font-size-base);
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .service-card {
        padding: var(--spacing-lg);
    }
    
    .about-feature {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-method {
        flex-direction: column;
        text-align: center;
    }
    
    .form {
        padding: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

/* ===================================
   ANIMACIONES Y EFECTOS ESPECIALES
   =================================== */

/* Animación de aparición suave */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Clases para animaciones */
.animate-on-scroll {
    opacity: 0;
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animate {
    opacity: 1;
    animation: fadeInUp 0.6s ease-out;
}

.animate-left {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-right {
    animation: fadeInRight 0.6s ease-out;
}

/* Efectos de hover para cards */
.service-card,
.testimonial-card,
.gallery-item {
    transition: all var(--transition-normal);
}

/* Gradientes animados */
.btn-primary {
    background-size: 200% 100%;
    transition: background-position var(--transition-normal);
}

.btn-primary:hover {
    background-position: 100% 0;
}

/* Efectos de loading y skeleton */
.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Efectos de focus mejorados */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

/* ===================================
   UTILIDADES
   =================================== */

/* Espaciado */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* Texto */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-gray { color: var(--gray); }
.text-dark { color: var(--dark-gray); }

.font-weight-light { font-weight: 300; }
.font-weight-normal { font-weight: 400; }
.font-weight-medium { font-weight: 500; }
.font-weight-bold { font-weight: 700; }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Flexbox */
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.align-center { align-items: center; }
.align-start { align-items: flex-start; }
.align-end { align-items: flex-end; }

/* Grid */
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* Sombras */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Bordes */
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded-md { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }
.rounded-full { border-radius: 50%; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Z-index */
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* ===================================
   MEJORAS DE ACCESIBILIDAD
   =================================== */

/* Modo de alto contraste */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #1a5a1f;
        --primary-light: #2d7d32;
        --gray: #404040;
        --dark-gray: #1a1a1a;
    }
}

/* Preferencias de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .whatsapp-float {
        animation: none;
    }
}

/* Screen readers only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible para navegación con teclado */
.nav-link:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
    border-radius: var(--border-radius-sm);
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    .header,
    .whatsapp-float,
    .back-to-top,
    .hero-buttons {
        display: none !important;
    }
    
    .hero {
        margin-top: 0;
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    a {
        text-decoration: underline;
    }
    
    a[href^="http"]:after {
        content: " (" attr(href) ")";
    }
    
    img {
        max-width: 100% !important;
        height: auto !important;
    }
    
    .section-header h2 {
        page-break-after: avoid;
    }
    
    .service-card,
    .testimonial-card {
        page-break-inside: avoid;
    }
}

/* ===================================
   OPTIMIZACIONES DE RENDIMIENTO
   =================================== */

/* Will-change para animaciones */
.service-card:hover,
.testimonial-card:hover,
.gallery-item:hover,
.btn:hover {
    will-change: transform;
}

/* GPU acceleration */
.whatsapp-float,
.back-to-top,
.gallery-item img {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Lazy loading placeholder */
.lazy-image {
    background: var(--light-gray);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
}

.lazy-image::before {
    content: "⏳ Cargando imagen...";
    font-size: var(--font-size-sm);
}

/* ===================================
   ESTADOS DE ERROR Y ÉXITO
   =================================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
}

.alert-success {
    background: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border-color: #ffeaa7;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

/* Estados de formulario */
.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: #dc3545;
}

.form-group.success input,
.form-group.success textarea,
.form-group.success select {
    border-color: #28a745;
}

.error-message {
    color: #dc3545;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.success-message {
    color: #28a745;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}