/* 
   Orinoco Energy C.A. - Hoja de Estilos Principal
   Diseño Premium, Moderno y 100% Responsivo
*/

:root {
    --primary-blue: #2C5EB0;
    --primary-blue-hover: #1E4488;
    --primary-green: #7CC344;
    --primary-green-hover: #63A333;
    --accent-orange: #F9A01B;
    --accent-orange-hover: #D78410;
    
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --bg-dark: #0F172A;
    --bg-dark-card: #1E293B;
    
    --text-dark: #0F172A;
    --text-main: #334155;
    --text-muted: #64748B;
    --text-light: #94A3B8;
    --text-white: #FFFFFF;
    
    --border-color: #E2E8F0;
    --border-dark: rgba(255, 255, 255, 0.1);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 20px rgba(44, 94, 176, 0.25);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    
    --section-padding: 100px;
}

/* Reset de estilos */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Personalizado */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-light);
}
::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-green);
}

::selection {
    background-color: var(--primary-green);
    color: var(--text-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-orange), #ffb347);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(249, 160, 27, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(249, 160, 27, 0.45);
}

.btn-secondary {
    background-color: var(--bg-white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--primary-blue);
    color: var(--text-white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(44, 94, 176, 0.2);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background-color: var(--text-white);
    color: var(--bg-dark);
    border-color: var(--text-white);
    transform: translateY(-3px);
}

/* Header & Navegación */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0.5rem 0; /* Relleno mínimo para dar espacio al logo grande de 110px */
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-normal);
}

.site-header.scrolled {
    padding: 0.25rem 0; /* Relleno mínimo en scroll para el logo de 75px */
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrapper {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 60px; /* Aumentado a 110px para que el logo sea muy visible y prominente */
    width: auto;
    object-fit: contain;
    transition: var(--transition-normal);
}

.site-header.scrolled .logo-img {
    height: 75px; /* Aumentado a 75px al hacer scroll */
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-main);
    position: relative;
    padding: 0.25rem 0;
}

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

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

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

/* Selector de Idioma */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.9rem;
    background: transparent;
    border: 1.5px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-main);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-toggle:hover {
    border-color: var(--primary-green);
    color: var(--primary-green-hover);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.hamburger span {
    width: 100%;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 10px;
    transition: all 0.3s ease-in-out;
}

/* Main Content */
.main-content {
    margin-top: 0;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: 60px;
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.hero-shape-1 {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50%;
    height: 80%;
    background: radial-gradient(circle, rgba(124, 195, 68, 0.15) 0%, transparent 60%);
    border-radius: 50%;
}

.hero-shape-2 {
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 60%;
    height: 90%;
    background: radial-gradient(circle, rgba(44, 94, 176, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(124, 195, 68, 0.15);
    color: var(--primary-green-hover);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(124, 195, 68, 0.25);
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: 3.75rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.9s ease;
}

.hero-title span {
    background: linear-gradient(135deg, var(--primary-blue) 30%, var(--primary-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 2.5rem;
    max-width: 580px;
    animation: fadeInUp 1s ease;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    animation: fadeInUp 1.1s ease;
}

.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1.2s ease;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 480px;
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--bg-white);
    overflow: hidden;
}

.hero-image-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition-slow);
}

.hero-image-container:hover .hero-img {
    transform: scale(1.05);
}

.hero-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--bg-white);
    padding: 1.25rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border-left: 5px solid var(--primary-green);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.hero-badge-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
}

.hero-badge-txt {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--primary-blue);
    animation: bounce 2s infinite;
    z-index: 5;
    opacity: 0.7;
}

.scroll-indicator:hover {
    color: var(--primary-green);
    opacity: 1;
}

/* Sections Global */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4.5rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-green-hover);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.section-title-light {
    color: var(--text-white);
}

.section-divider {
    width: 60px;
    height: 4px;
    background: var(--primary-green);
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section (Nosotros) */
.about-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.about-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.03) 1px, transparent 0);
    background-size: 30px 30px;
    pointer-events: none;
}

.about-intro-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-dark);
    padding: 3rem;
    border-radius: 24px;
    margin-bottom: 3.5rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.about-intro-txt {
    font-size: 1.25rem;
    line-height: 1.7;
    opacity: 0.9;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.about-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(8px);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--border-dark);
    border-left: 4px solid var(--primary-green);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.about-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    border-left-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.about-card-title {
    color: var(--primary-green);
    font-size: 1.45rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition-fast);
}

.about-card:hover .about-card-title {
    color: var(--text-white);
}

.about-card-txt {
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
}

/* Norms Section (Cumplimiento Normativo) */
.norms-section {
    padding: var(--section-padding) 0;
    background-color: var(--bg-white);
}

.norms-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 2rem;
}

.norm-card {
    flex: 1 1 280px;
    max-width: 360px;
    background: var(--bg-light);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.norm-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-blue);
    transform: scaleX(0);
    transform-origin: center; /* Animación desde el centro */
    transition: var(--transition-normal);
}

.norm-card:hover {
    transform: translateY(-5px);
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.norm-card:hover::before {
    transform: scaleX(1);
}

.norm-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background-color: rgba(44, 94, 176, 0.1);
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
}

.norm-card:hover .norm-icon {
    background-color: var(--primary-blue);
    color: var(--text-white);
}

.norm-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--primary-blue);
}

.norm-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Services Section (Servicios) */
.services-section {
    padding: var(--section-padding) 0;
    background-color: var(--bg-light);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background-color: var(--bg-white);
    border-radius: 24px;
    padding: 3rem 2.25rem;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-slow);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(124, 195, 68, 0.05), transparent 70%);
    opacity: 0;
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-12px);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::after {
    opacity: 1;
}

.service-icon-box {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2.25rem;
    transition: var(--transition-normal);
}

.service-card:hover .service-icon-box {
    transform: scale(1.1) rotate(5deg);
}

.service-card-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.service-list {
    list-style: none;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-item {
    font-size: 0.95rem;
    color: var(--text-main);
    position: relative;
    padding-left: 1.75rem;
    font-weight: 500;
}

.service-item::before {
    content: '✓';
    color: var(--primary-green);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.1rem;
}

/* Partners Section (Alianzas) */
.partners-section {
    padding: 5rem 0;
    background-color: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.partners-title {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 3rem;
}

.partners-flex {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.partner-logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    width: auto;
    transition: var(--transition-normal);
}

.partner-logo {
    max-height: 100%;
    width: auto;
    max-width: 140px;
    object-fit: contain;
}

.partner-logo-container:hover {
    transform: scale(1.08);
}

/* Contact Section (Contacto) */
.contact-section {
    padding: var(--section-padding) 0;
    background-color: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--bg-white);
    color: var(--primary-green);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

.contact-txt-box {
    display: flex;
    flex-direction: column;
}

.contact-item-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.contact-item-val {
    font-size: 1.05rem;
    color: var(--text-dark);
    font-weight: 500;
}

.contact-item-val a:hover {
    color: var(--primary-blue);
}

.brochure-download-box {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e40af 100%);
    color: var(--text-white);
    padding: 2.25rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    margin-top: 1rem;
}

.brochure-title {
    color: var(--text-white);
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.brochure-desc {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-bottom: 1.5rem;
}

/* Formulario */
.contact-form-container {
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.85rem 1.25rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: var(--transition-fast);
    background-color: var(--bg-light);
}

.form-control:focus {
    border-color: var(--primary-blue);
    background-color: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(44, 94, 176, 0.1);
}

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

/* Footer (Pie de Página) */
.site-footer {
    background-color: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem;
    border-top: 4px solid var(--primary-green);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr 0.9fr;
    gap: 3.5rem;
    margin-bottom: 4rem;
}

.footer-logo-box {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.footer-logo-img {
    height: 54px;
    width: auto;
    object-fit: contain;
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
}

.footer-logo-txt {
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-rif {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-light);
}

.footer-nav-box {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-title {
    color: var(--text-white);
    font-size: 1.2rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 35px;
    height: 2px;
    background-color: var(--primary-green);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    font-size: 0.95rem;
    display: inline-block;
}

.footer-link:hover {
    color: var(--primary-green);
    transform: translateX(5px);
}

.footer-socials {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-dark);
}

.social-icon:hover {
    background-color: var(--primary-green);
    border-color: var(--primary-green);
    color: var(--text-white);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid var(--border-dark);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    color: var(--text-light);
}

/* Botón Volver Arriba */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 99;
    border: none;
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-green);
    transform: scale(1.1);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translate(-50%, 0);
    }
    40% {
        transform: translate(-50%, -10px);
    }
    60% {
        transform: translate(-50%, -5px);
    }
}

/* Reveal-on-scroll classes */
.reveal-item {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-item.reveal-left {
    transform: translateX(-40px);
}

.reveal-item.reveal-right {
    transform: translateX(40px);
}

.reveal-item.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image-wrapper {
        order: -1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .site-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-white);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3rem;
        transition: var(--transition-normal);
        z-index: 1050;
    }
    
    .site-nav.open {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .nav-link {
        font-size: 1.15rem;
    }
    
    /* Efecto hamburguesa activa */
    .hamburger.open span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .hamburger.open span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.open span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .contact-form-container {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .hero-badge {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-img {
        height: 100%;
    }

    .partners-flex {
        flex-direction: column;
        gap: 2rem;
    }

    .partner-logo-container {
        width: 100%;
    }
}