:root {
    --primary: #0D9488;
    --primary-light: #14B8A6;
    --accent: #22C55E;
    
    /* Variables para fondos oscuros con transparencia (Dark Glassmorphism) */
    --dark-bg-80: rgba(15, 23, 42, 0.85);
    --dark-bg-90: rgba(15, 23, 42, 0.92);
    --dark-card: rgba(15, 23, 42, 0.80);
    --dark-border: rgba(255, 255, 255, 0.12);
    
    --text-white: #FFFFFF;
    --text-muted: #CBD5E1;
    --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: 'Open Sans', sans-serif;
    color: var(--text-white);
}

body {
    background-color: #0F172A;
    /* Imagen ambiental visibilizada con una capa de tinte oscuro suave */
    background-image: 
        linear-gradient(to bottom, rgba(15, 23, 42, 0.55), rgba(15, 23, 42, 0.75)),
        url('https://images.unsplash.com/photo-1448375240586-882707db888b?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

h1, h2, h3, .logo-box {
    font-family: 'Montserrat', sans-serif;
}

/* Header / Navbar Oscuro Traslúcido */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.1rem 8%;
    background: var(--dark-bg-90);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--dark-border);
}

.logo-box {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.06);
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    border: 1px solid var(--dark-border);
    letter-spacing: -0.5px;
}

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

.navbar nav a {
    text-decoration: none;
    color: var(--text-muted);
    margin-left: 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.navbar nav a:hover {
    color: var(--primary-light);
}

.navbar nav .btn-nav {
    background: var(--primary);
    color: var(--text-white);
    padding: 0.65rem 1.4rem;
    border-radius: 6px;
}

.navbar nav .btn-nav:hover {
    background: var(--primary-light);
}

/* Hero Section */
.hero {
    padding: 6rem 8% 4rem 8%;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr;
    gap: 2.5rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* Tarjeta Principal del Hero Oscura Traslúcida */
.hero-card {
    background: var(--dark-card);
    backdrop-filter: blur(12px);
    padding: 3rem;
    border-radius: 16px;
    border: 1px solid var(--dark-border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(13, 148, 136, 0.25);
    color: var(--primary-light);
    border: 1px solid rgba(20, 184, 166, 0.3);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-card h1 {
    font-size: clamp(2rem, 3.8vw, 3rem);
    color: var(--text-white);
    line-height: 1.25;
    font-weight: 800;
    margin-bottom: 1.2rem;
}

.hero-card p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 2rem;
}

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

.btn-main {
    padding: 0.95rem 2rem;
    background: var(--primary);
    color: var(--text-white);
    text-decoration: none;
    font-weight: 700;
    border-radius: 6px;
    transition: var(--transition);
}

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

.btn-secondary {
    padding: 0.95rem 2rem;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-white);
    border: 1px solid var(--dark-border);
    text-decoration: none;
    font-weight: 700;
    border-radius: 6px;
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
    background: rgba(255, 255, 255, 0.15);
}

/* Tarjeta Lateral */
.summary-box {
    background: var(--dark-card);
    backdrop-filter: blur(12px);
    border-left: 5px solid var(--primary-light);
    padding: 2.5rem;
    border-radius: 12px;
    border-top: 1px solid var(--dark-border);
    border-right: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.summary-box h3 {
    font-size: 1.3rem;
    color: var(--text-white);
    margin-bottom: 1.2rem;
}

.summary-box ul {
    list-style: none;
}

.summary-box li {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

/* Barra de Estadísticas */
.stats-bar {
    background: var(--dark-bg-90);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
    padding: 2.5rem 8%;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    flex-wrap: wrap;
    gap: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--accent);
    font-family: 'Montserrat', sans-serif;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Sobre Nosotros */
.about {
    padding: 5rem 8% 2rem 8%;
}

.about-card {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    background: var(--dark-card);
    backdrop-filter: blur(10px);
    padding: 3rem 2rem;
    border-radius: 16px;
    border: 1px solid var(--dark-border);
}

.about-card h2 {
    font-size: 2.2rem;
    color: var(--text-white);
    margin-bottom: 1rem;
    font-weight: 800;
}

.about-card p {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Sección de Servicios con Tarjetas Oscuras */
.services {
    padding: 4rem 8% 6rem 8%;
}

.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
    background: var(--dark-card);
    backdrop-filter: blur(10px);
    padding: 2rem 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--dark-border);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--text-white);
    margin-bottom: 0.75rem;
    font-weight: 800;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.05rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 1.8rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--dark-card);
    backdrop-filter: blur(10px);
    padding: 2.2rem 1.8rem;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
    transition: var(--transition);
    position: relative;
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--primary-light);
    background: rgba(15, 23, 42, 0.92);
    box-shadow: 0 15px 30px rgba(13, 148, 136, 0.25);
}

.card-featured {
    border-top: 4px solid var(--primary-light);
}

.featured-tag {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(13, 148, 136, 0.3);
    color: var(--primary-light);
    border: 1px solid rgba(20, 184, 166, 0.3);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.card-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.card h3 {
    font-size: 1.2rem;
    color: var(--text-white);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Footer CTA */
.footer {
    background: var(--dark-bg-90);
    backdrop-filter: blur(12px);
    color: var(--text-white);
    padding: 5rem 8% 2rem 8%;
    border-top: 4px solid var(--primary);
}

.footer-container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.cta-badge {
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
    display: block;
}

.footer-cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin-bottom: 1rem;
    font-weight: 800;
}

.footer-cta .quote {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    font-style: italic;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: #25D366;
    color: var(--text-white);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 700;
    padding: 1rem 2rem;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    background: #1DA851;
    transform: translateY(-3px);
}

.wsp-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.footer-bottom {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--dark-border);
    font-size: 0.85rem;
    color: #64748B;
}

/* Responsivo */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    .navbar nav a {
        margin: 0 0.5rem;
    }
    .stats-container {
        flex-direction: column;
    }
}