/* ==========================================================================
   TEC SIGIMASTER - Estilos Premium Globales
   Autor: Erick & Antigravity (Google DeepMind)
   ========================================================================== */

/* Variables del Sistema de Diseño (Design Tokens) */
:root {
    --bg-darkest: #070a12;
    --bg-darker: #0c111e;
    --bg-dark: #12192c;
    --bg-card: rgba(18, 25, 44, 0.7);
    --bg-glass: rgba(18, 25, 44, 0.45);
    
    --primary-grad: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --secondary-grad: linear-gradient(135deg, #00ff87 0%, #60efff 100%);
    --purple-grad: linear-gradient(135deg, #b92b27 0%, #1565c0 100%);
    --dark-grad: linear-gradient(180deg, #12192c 0%, #070a12 100%);
    
    --accent: #00f2fe;
    --accent-emerald: #00ff87;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    --white: #ffffff;
    
    --border-color: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(0, 242, 254, 0.25);
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 30px rgba(0, 242, 254, 0.2);
    --shadow-glow-green: 0 0 30px rgba(0, 255, 135, 0.15);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

/* Reset y Estilos Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--bg-darkest);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scrollbar Personalizada */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-darkest);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-dark);
    border: 2px solid var(--bg-darkest);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--white);
    font-weight: 700;
    line-height: 1.25;
}

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

ul {
    list-style: none;
}

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

/* Componentes de Utilidad */
.container {
    width: 100%;
    max-width: 1200px;
    margin-right: auto;
    margin-left: auto;
    padding-right: 1.5rem;
    padding-left: 1.5rem;
}

.section-padding {
    padding: 6.5rem 0;
}

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

/* Encabezado de Sección */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-subtitle {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Botones Premium */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.95rem 1.85rem;
    border-radius: 50px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: var(--primary-grad);
    color: var(--bg-darkest);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(0, 242, 254, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background: var(--primary-grad);
    color: var(--bg-darkest);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-full-width {
    width: 100%;
}

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

/* Micro-animación Pulse para CTA */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.6);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(0, 242, 254, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 242, 254, 0);
    }
}

.btn-pulse {
    animation: pulse 2.5s infinite;
}

/* Barra de Contacto Superior */
.top-bar {
    background-color: var(--bg-darkest);
    border-bottom: 1px solid var(--border-color);
    padding: 0.65rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.top-bar-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.top-bar-item i, .top-bar-link i {
    color: var(--accent);
}

.top-bar-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-weight: 600;
}

.top-bar-link:hover {
    color: var(--accent);
}

/* Cabecera Principal */
.main-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(7, 10, 18, 0.85);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    padding: 1.15rem 0;
    transition: var(--transition-normal);
}

.main-header.scrolled {
    padding: 0.8rem 0;
    background-color: rgba(7, 10, 18, 0.95);
    box-shadow: var(--shadow-md);
}

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

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    display: inline-flex;
    align-items: center;
}

.logo-accent {
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-main {
    color: var(--white);
}

/* Menú de Navegación */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    position: relative;
    padding: 0.25rem 0;
}

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

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

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

.btn-contact-nav {
    background: rgba(0, 242, 254, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: 30px;
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.btn-contact-nav:hover {
    background: var(--primary-grad);
    color: var(--bg-darkest);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 9.5rem 0 7.5rem 0;
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.18;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: #00f2fe;
    top: -10%;
    right: 5%;
}

.shape-2 {
    width: 350px;
    height: 350px;
    background: #00ff87;
    bottom: 5%;
    left: -5%;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: #b92b27;
    top: 30%;
    left: 45%;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: center;
}

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

.badge-premium {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(0, 242, 254, 0.08);
    color: var(--accent);
    border: 1px solid rgba(0, 242, 254, 0.18);
    padding: 0.45rem 1rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: fit-content;
    margin-bottom: 1.5rem;
}

.hero-content h1 {
    font-size: 3.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 40%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.25rem;
    max-width: 580px;
}

.hero-lead strong {
    color: var(--white);
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 3.5rem;
}

.hero-metrics {
    display: flex;
    gap: 2.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.metric-item {
    display: flex;
    flex-direction: column;
}

.metric-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--white);
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Hero Visual / Wireframe Malla 3D */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.visual-wrapper {
    position: relative;
    width: 100%;
    max-width: 480px;
    height: 400px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terrain-grid-preview {
    position: relative;
    width: 100%;
    height: 100%;
    background-size: 25px 25px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    perspective: 800px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Efecto Malla 3D en CSS */
.wireframe-contour {
    position: absolute;
    border: 1px solid rgba(0, 242, 254, 0.15);
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    animation: rotateContour 20s infinite linear;
    pointer-events: none;
}

.wireframe-contour:nth-child(1) {
    width: 80%;
    height: 80%;
    border-color: rgba(0, 242, 254, 0.25);
    animation-duration: 25s;
}

.wireframe-contour:nth-child(2) {
    width: 65%;
    height: 65%;
    border-color: rgba(0, 255, 135, 0.2);
    animation-direction: reverse;
    animation-duration: 18s;
}

.wireframe-contour:nth-child(3) {
    width: 50%;
    height: 50%;
    border-color: rgba(0, 242, 254, 0.15);
    animation-duration: 30s;
}

.wireframe-contour:nth-child(4) {
    width: 35%;
    height: 35%;
    border-color: rgba(0, 255, 135, 0.25);
    animation-direction: reverse;
    animation-duration: 15s;
}

.wireframe-contour:nth-child(5) {
    width: 20%;
    height: 20%;
    border-color: rgba(0, 242, 254, 0.35);
    animation-duration: 12s;
}

@keyframes rotateContour {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.05);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

.pulse-locator {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-emerald);
    top: 40%;
    left: 60%;
}

.pulse-locator::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: var(--accent-emerald);
    border-radius: 50%;
    animation: pulseGlow 2s infinite ease-out;
}

@keyframes pulseGlow {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(4); opacity: 0; }
}

.map-overlay-card {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(12, 17, 30, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
}

.map-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.map-card-body {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.card-detail-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

.card-detail-row span:first-child {
    color: var(--text-muted);
}

.card-detail-row span:last-child {
    color: var(--white);
    font-weight: 600;
}

/* Sección Curvas de Nivel */
.curves-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
}

.curves-info {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

/* Feature Card Compacta */
.feature-card-compact {
    display: flex;
    gap: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 16px;
    transition: var(--transition-normal);
}

.feature-card-compact:hover {
    border-color: var(--border-hover);
    transform: translateX(5px);
    background: var(--bg-card);
}

.icon-box {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--bg-darkest);
}

.bg-gradient-blue { background: var(--primary-grad); }
.bg-gradient-cyan { background: linear-gradient(135deg, #00f2fe 0%, #00ff87 100%); }
.bg-gradient-emerald { background: var(--secondary-grad); }
.bg-gradient-purple { background: var(--purple-grad); color: var(--white); }

.feature-details h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.feature-details p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Cotizador Card */
.quote-calculator-card {
    position: relative;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: #00f2fe;
    filter: blur(90px);
    opacity: 0.25;
    pointer-events: none;
}

.quote-calculator-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.calculator-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.75rem;
}

/* Formularios */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    background-color: var(--bg-darker);
    border: 1px solid var(--border-color);
    color: var(--white);
    padding: 0.85rem 1rem;
    border-radius: 10px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
}

.input-with-select {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 0.75rem;
}

/* Sección Imágenes Satelitales */
.satelitales-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.satelital-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.satelital-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.satelital-img-placeholder {
    height: 240px;
    position: relative;
    background-color: var(--bg-darker);
    background-size: cover;
    background-position: center;
}

/* Imagen de simulación satelital en CSS */
.resolution-high {
    background-image: linear-gradient(to bottom, rgba(7, 10, 18, 0.1) 0%, rgba(7, 10, 18, 0.8) 100%), url('satellite_high_res.png');
}

.resolution-medium {
    background-image: linear-gradient(to bottom, rgba(7, 10, 18, 0.1) 0%, rgba(7, 10, 18, 0.8) 100%), url('satellite_multitemp.png');
}

.satellite-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, transparent 50%);
}

.satelital-img-placeholder::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: 40px 40px;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    opacity: 0.4;
}

.badge {
    background: var(--bg-darkest);
    color: var(--accent);
    border: 1px solid var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.satelital-content {
    padding: 2.25rem;
}

.satelital-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}

.satelital-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.card-features {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.card-features li {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Filtros e Index de Plugins */
.filter-wrapper {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-dark);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.4rem;
    border-radius: 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--primary-grad);
    color: var(--bg-darkest);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

/* Product Card */
.product-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    overflow: hidden;
}

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

.product-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--bg-darkest);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary-grad);
    color: var(--bg-darkest);
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.product-card p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.product-meta {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-bottom: 1rem;
}

.compatibility {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.price-info {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--white);
}

/* Sección Otras Cosas de Ingeniería */
.eng-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.eng-item-card {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
}

.eng-item-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-glass);
    transform: translateY(-3px);
}

.eng-item-icon {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.eng-item-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.eng-item-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.75rem;
    flex-grow: 1;
}

.eng-item-link {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent-emerald);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.eng-item-link:hover {
    color: var(--white);
}

.eng-item-link i {
    transition: var(--transition-fast);
}

.eng-item-link:hover i {
    transform: translateX(5px);
}

/* Sección Procesos de Compra */
.process-section {
    position: relative;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    position: relative;
}

.step-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    position: relative;
}

.step-num {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-grad);
    color: var(--bg-darkest);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    box-shadow: var(--shadow-glow);
}

.step-card h3 {
    font-size: 1.25rem;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.step-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Sección de Contacto */
.contact-section {
    position: relative;
    overflow: hidden;
}

.contact-container {
    display: flex;
    justify-content: center;
}

.contact-card {
    width: 100%;
    max-width: 850px;
    background: var(--dark-grad);
    border: 1px solid var(--border-color);
    padding: 4rem;
    border-radius: 30px;
    text-align: center;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-card h2 {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
}

.contact-card p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.contact-details {
    display: flex;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-align: left;
}

.contact-detail-item i {
    font-size: 1.5rem;
}

.contact-detail-item h4 {
    font-size: 1rem;
    margin-bottom: 0.15rem;
}

.contact-detail-item p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Footer */
.main-footer {
    background-color: var(--bg-darkest);
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    padding-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    max-width: 320px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.social-links a:hover {
    background: var(--primary-grad);
    color: var(--bg-darkest);
    border-color: transparent;
    transform: translateY(-2px);
}

.footer-links-group h3 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-links-group ul {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links-group a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links-group a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-bottom-content a {
    color: var(--accent);
}

/* ==========================================================================
   Responsive Design (Media Queries)
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3.5rem;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-lead {
        margin-right: auto;
        margin-left: auto;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .hero-metrics {
        justify-content: center;
        width: 100%;
    }
    
    .hero-visual {
        margin-top: 1.5rem;
    }
    
    .curves-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .eng-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 4.5rem 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.75rem;
    }
    
    .top-bar {
        display: none; /* Ocultar barra superior en móviles pequeños para simplificar */
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 73px);
        background-color: var(--bg-darkest);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 3rem;
        gap: 2.5rem;
        transition: var(--transition-normal);
        z-index: 99;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .satelitales-grid {
        grid-template-columns: 1fr;
    }
    
    .eng-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .contact-card {
        padding: 2.5rem 1.5rem;
    }
    
    .contact-card h2 {
        font-size: 1.85rem;
    }
    
    .contact-details {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.25rem;
    }
    
    .hero-metrics {
        flex-direction: column;
        align-items: center;
        gap: 1.25rem;
    }
    
    .quote-calculator-card {
        padding: 1.5rem;
    }
    
    .input-with-select {
        grid-template-columns: 1fr;
    }
}