/* Variables y Configuración Global */
:root {
    --primary-dark: #0D3B66;
    --primary-medium: #1565C0;
    --primary-light: #1EA7E1;
    --accent-cyan: #00E5FF;
    --whatsapp-green: #25D366;
    --text-dark: #2C3E50;
    --text-muted: #6C7A89;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

body {
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.text-center {
    text-align: center;
}

/* Botones */
.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-medium);
    color: var(--bg-white);
    box-shadow: 0 4px 15px rgba(21, 101, 192, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 167, 225, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--bg-white);
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(5px);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

.btn-outline:hover {
    background-color: var(--bg-white);
    color: var(--primary-dark);
}

/* Header & Navegación */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
    padding: 1.2rem 0;
}

.header.scrolled {
    background: var(--primary-dark);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 0.8rem 0;
}

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

.logo-fallback {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--bg-white);
    letter-spacing: 1px;
}

.logo-fallback span {
    color: var(--primary-light);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--bg-white);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.btn-nav {
    background-color: var(--accent-cyan);
    color: var(--primary-dark);
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    font-weight: 700;
    transition: var(--transition);
}

.btn-nav:hover {
    background-color: var(--bg-white);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--bg-white);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 650px;
    background: url('../img/hero-grua.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    text-align: left;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 59, 102, 0.9) 0%, rgba(21, 101, 192, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--bg-white);
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(30, 167, 225, 0.2);
    color: var(--accent-cyan);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 229, 255, 0.3);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2.5rem;
    max-width: 650px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Sobre Nosotros */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--primary-dark);
    color: var(--bg-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(13, 59, 102, 0.3);
    border: 3px solid var(--bg-white);
}

.about-experience-badge .number {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-cyan);
    line-height: 1;
}

.about-experience-badge .text {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-subtitle {
    display: block;
    color: var(--primary-medium);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.about-content p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-icon {
    font-size: 1.8rem;
    background-color: rgba(21, 101, 192, 0.1);
    padding: 0.8rem;
    border-radius: 10px;
}

.feature-item h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.3rem;
}

.feature-item p {
    font-size: 0.95rem;
    margin: 0;
}

/* Servicios */
.section-header {
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
}

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

.service-card {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(13, 59, 102, 0.12);
    border-color: rgba(30, 167, 225, 0.3);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ¿Por qué elegirnos? */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.why-item {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-medium);
    transition: var(--transition);
}

.why-item:hover {
    background-color: var(--bg-white);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.check-icon {
    display: inline-block;
    width: 35px;
    height: 35px;
    background-color: var(--primary-medium);
    color: var(--bg-white);
    border-radius: 50%;
    text-align: center;
    line-height: 35px;
    font-weight: bold;
    margin-bottom: 1rem;
}

.why-item h4 {
    font-size: 1.15rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.why-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Estadísticas */
.stats-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
    color: var(--bg-white);
    padding: 5rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item .stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-cyan);
    line-height: 1;
}

.stat-item .stat-symbol {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-cyan);
}

.stat-item .stat-label {
    display: block;
    margin-top: 0.8rem;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.85);
}

/* Galería */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 280px;
    cursor: pointer;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(13, 59, 102, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay span {
    color: var(--bg-white);
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid var(--accent-cyan);
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    background-color: rgba(0, 229, 255, 0.1);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-img {
    max-width: 90%;
    max-height: 85vh;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--bg-white);
    font-size: 3rem;
    cursor: pointer;
    font-weight: 300;
    transition: var(--transition);
}

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-medium) 100%);
    color: var(--bg-white);
    padding: 6rem 0;
}

.cta-container h2 {
    font-size: 2.8rem;
    margin-bottom: 1.2rem;
}

.cta-container p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background-color: #08243F;
    color: rgba(255, 255, 255, 0.7);
    padding: 5rem 0 2rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 1.2rem;
}

.footer-col p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-col h4 {
    color: var(--bg-white);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    font-size: 0.85rem;
}

/* WhatsApp Flotante */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--whatsapp-green);
    color: var(--bg-white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Animaciones de Entrada */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.active, .fade-up.active, .fade-left.active, .fade-right.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* Responsividad (Media Queries) */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--primary-dark);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.4s ease-in-out;
        z-index: 999;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 1.2rem;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .services-grid, .why-grid, .gallery-grid {
        grid-template-columns: 1fr;
    }
}