/* ===== RESET & VARIABLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --primary-color: #2a6e3f;
    --primary-dark: #1f5230;
    --primary-light: #4a9e5c;
    --secondary-color: #0d8b57;
    --accent-color: #36b37e;
    
    /* Colores neutros */
    --dark-color: #1a3c24;
    --text-color: #333333;
    --text-light: #666666;
    --light-color: #f8faf9;
    --white: #ffffff;
    --gray: #e9ecef;
    --border-color: #e0e0e0;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
    
    /* Transiciones */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Bordes */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 25px;
    
    /* Espaciado */
    --section-padding: 100px 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-color);
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 15px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    position: relative;
    padding-left: 20px;
}

.section-subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 15px;
    height: 2px;
    background: var(--primary-color);
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 50px;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    min-height: 100px;
}

/* Logo Area - AGRANDADO */
.logo-area {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 20px;
    transition: var(--transition);
}

.logo-link:hover {
    transform: translateY(-2px);
}

/* LOGO MÁS GRANDE */
.logo-img {
    height: 85px; /* Aumentado de 60px */
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

/* Texto del logo más grande */
.logo-main {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem; /* Aumentado de 1.4rem */
    font-weight: 800;
    color: var(--dark-color);
    line-height: 1.1;
}

.logo-sub {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem; /* Aumentado de 0.9rem */
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

/* Navigation */
.navbar {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-link {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--dark-color);
    text-decoration: none;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-nav {
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 25px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    transition: var(--transition);
}

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

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

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

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    margin-top: 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8faf9 0%, #e8f5e9 100%);
    padding: 80px 0;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    background: rgba(42, 110, 63, 0.1);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 25px;
}

.hero-badge span {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 25px;
}

.title-line {
    display: block;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(42, 110, 63, 0.2);
    z-index: -1;
    border-radius: 4px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: 15px 35px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    padding: 15px 35px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.hero-image-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--white);
    padding: 20px;
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition);
}

.hero-image-card:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-main-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-md);
    display: block;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(42, 110, 63, 0.1) 100%);
    pointer-events: none;
}

.hero-floating-card {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background: var(--white);
    padding: 15px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 15px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.floating-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.floating-content {
    display: flex;
    flex-direction: column;
}

.floating-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.floating-text {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
    max-width: 120px;
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    background: var(--white);
    padding: 25px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-text {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
    line-height: 1.3;
}

/* Hero Background Shapes */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(42, 110, 63, 0.05), rgba(42, 110, 63, 0.02));
    filter: blur(40px);
}

.shape-1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
    animation: float-shape 20s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    bottom: 50px;
    left: -100px;
    animation: float-shape 25s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: 30%;
    animation: float-shape 30s ease-in-out infinite;
}

@keyframes float-shape {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(30px, 30px) rotate(90deg);
    }
    50% {
        transform: translate(0, 60px) rotate(180deg);
    }
    75% {
        transform: translate(-30px, 30px) rotate(270deg);
    }
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

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

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

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: var(--white);
    font-size: 1.8rem;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-description {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    margin-top: 20px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.service-features i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

/* ===== ESTILOS PARA PANELES SOLARES ===== */
.solar-card {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8faf9 0%, #fffbf0 100%);
    border: 2px solid rgba(255, 193, 7, 0.2);
}

.solar-card::before {
    background: linear-gradient(135deg, #FFC107, #FF9800);
}

.solar-card:hover {
    border-color: rgba(255, 193, 7, 0.4);
    box-shadow: 0 15px 30px rgba(255, 193, 7, 0.1);
}

/* Icono especial para solar */
.solar-icon {
    background: linear-gradient(135deg, #FFC107, #FF9800);
    position: relative;
}

.solar-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #FF5722;
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 3px 10px rgba(255, 87, 34, 0.3);
    animation: pulse-solar 2s infinite;
}

@keyframes pulse-solar {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 3px 10px rgba(255, 87, 34, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 5px 15px rgba(255, 87, 34, 0.4);
    }
}

/* Beneficios específicos para solar */
.solar-benefits {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 193, 7, 0.2);
}

.benefit {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
}

.benefit i {
    font-size: 1.2rem;
    color: #FFC107;
    background: rgba(255, 193, 7, 0.1);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit span {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
    max-width: 80px;
}

/* Ajuste del grid para 5 elementos */
@media (min-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Para tablets, mostrar 2 columnas */
@media (min-width: 768px) and (max-width: 1199px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== PRODUCTOS SECTION ===== */
.products {
    background: var(--light-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
}

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

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 1;
}

.product-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--white), transparent);
}

.product-content {
    padding: 30px;
}

.product-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.product-description {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
}

.product-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.product-features i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.product-btn {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    width: 100%;
    text-align: center;
}

.product-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ===== PROYECTOS SECTION ===== */
.proyectos {
    background: var(--white);
}

.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.proyecto-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

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

.proyecto-img {
    width: 100%;
    height: 250px;
    overflow: hidden;
    position: relative;
}

.proyecto-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.proyecto-card:hover .proyecto-image {
    transform: scale(1.1);
}

/* ===== ABOUT SECTION ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-top: 30px;
}

.feature {
    display: flex;
    gap: 20px;
}

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

.feature h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.feature p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.about-image {
    position: relative;
}

.image-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.image-card::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    background: var(--primary-color);
    opacity: 0.1;
    border-radius: var(--radius-lg);
    z-index: -1;
}

.image-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
}

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

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--light-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

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

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.info-content p {
    color: var(--text-color);
    margin-bottom: 5px;
    font-weight: 500;
}

.info-content small {
    color: var(--text-light);
    font-size: 0.85rem;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: 'Open Sans', sans-serif;
    font-size: 0.95rem;
    color: var(--text-color);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(42, 110, 63, 0.1);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%232a6e3f' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 12px;
    padding-right: 40px;
}

.btn-submit {
    background: var(--primary-color);
    color: var(--white);
    padding: 16px 40px;
    border-radius: var(--radius-xl);
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    justify-content: center;
    margin-top: 20px;
}

.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-submit:active {
    transform: translateY(-1px);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo-img {
    height: 50px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-brand h3 {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 2px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--primary-light);
    font-weight: 600;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: var(--white);
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(5px);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    text-decoration: none;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-btn: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 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .proyectos-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .section-title {
        font-size: 2.2rem;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image-card {
        transform: none;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-floating-card {
        right: 50%;
        transform: translateX(50%);
        animation: float-mobile 3s ease-in-out infinite;
    }
    
    @keyframes float-mobile {
        0%, 100% {
            transform: translateX(50%) translateY(0);
        }
        50% {
            transform: translateX(50%) translateY(-10px);
        }
    }
    
    .hero-stats {
        max-width: 600px;
        margin: 30px auto 0;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .proyectos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Logo responsive para tablet */
    .logo-img {
        height: 70px; /* Reducido para tablet */
    }
    
    .logo-main {
        font-size: 1.5rem; /* Reducido para tablet */
    }
    
    .logo-sub {
        font-size: 0.95rem; /* Reducido para tablet */
    }
}

@media (max-width: 768px) {
    .header .container {
        padding: 15px;
    }
    
    .navbar {
        position: fixed;
        top: 100px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 100px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 20px;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        gap: 0;
        overflow-y: auto;
    }
    
    .navbar.active {
        left: 0;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 0;
        margin-bottom: 30px;
    }
    
    .nav-link {
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
        width: 100%;
        font-size: 1.1rem;
    }
    
    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }
    
    .hamburger {
        display: flex;
    }
    
    /* Logo más pequeño en móvil */
    .logo-img {
        height: 60px; /* Reducido para móvil */
    }
    
    .logo-main {
        font-size: 1.3rem; /* Reducido para móvil */
    }
    
    .logo-sub {
        font-size: 0.85rem; /* Reducido para móvil */
    }
    
    .section {
        padding: 70px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 30px;
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-links a:hover {
        transform: none;
    }
    
    .social-link {
        margin: 0 auto;
    }
    
    .whatsapp-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 25px;
    }
    
    .proyectos-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .proyecto-img {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-floating-card {
        position: relative;
        bottom: auto;
        right: auto;
        transform: none;
        margin-top: 20px;
        animation: none;
        justify-content: center;
    }
    
    .floating-content {
        align-items: center;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .service-card,
    .product-content {
        padding: 30px 20px;
    }
    
    .proyectos-grid {
        grid-template-columns: 1fr;
    }
}