/* style.css */
:root {
    --azul-i: #0056b3;
    --cian-pymmes: #00bcd4;
    --negro-fondo: #f4f6f8;
    --blanco: #ffffff;
    --texto: #333333;
    --gris-texto: #666666;
    --transition-speed: 0.4s ease-out;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', sans-serif; background-color: var(--negro-fondo); color: var(--texto); line-height: 1.6; }

/* HEADER */
.main-header { position: fixed; top: 0; width: 100%; z-index: 1000; background: var(--blanco); padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.main-header .logo img { height: 40px; image-rendering: -webkit-optimize-contrast; }
.main-nav ul { list-style: none; display: flex; }
.main-nav ul li { margin-left: 30px; }
.main-nav ul li a { text-decoration: none; color: var(--texto); font-weight: 600; text-transform: uppercase; font-size: 0.9rem; }
.main-nav ul li a:hover { color: var(--azul-i); }

/* HERO */
.hero-section { height: 80vh; display: flex; align-items: center; justify-content: center; text-align: center; background: linear-gradient(135deg, var(--azul-i), var(--cian-pymmes)); color: white; padding: 0 20px; }
.hero-content { max-width: 800px; }
.hero-content h1 { font-size: 3rem; margin-bottom: 20px; }

/* SERVICIOS */
.container { max-width: 1200px; margin: 0 auto; padding: 80px 20px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.service-card { background: var(--blanco); padding: 30px; border-radius: 15px; border: 1px solid #e1e1e1; text-align: center; transition: 0.3s; }
.service-card:hover { border-color: var(--cian-pymmes); transform: translateY(-5px); }
.service-card .icon { font-size: 2.5rem; color: var(--azul-i); margin-bottom: 20px; }

/* ULTRACEL Y CLIENTES */
.ultracel-section { background: var(--azul-i); padding: 80px 20px; text-align: center; color: white; }
.btn-ultracel { display: inline-block; padding: 15px 40px; margin-top: 20px; background: var(--cian-pymmes); color: white; text-decoration: none; border-radius: 50px; font-weight: bold; }
.clients-section { padding: 80px 20px; text-align: center; }
.clients-grid { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-top: 30px; }
.client-logo { width: 120px; filter: grayscale(100%); opacity: 0.5; transition: 0.3s; }
.client-logo:hover { filter: grayscale(0%); opacity: 1; }

/* CONTACTO */
.contact-form-wrapper { max-width: 600px; }
input, textarea { width: 100%; padding: 15px; margin-bottom: 15px; border: 1px solid #ccc; border-radius: 8px; }
.submit-btn { width: 100%; padding: 15px; background: var(--azul-i); color: white; border: none; border-radius: 8px; font-weight: bold; cursor: pointer; }

:root {
    --azul-i: #0056b3;
    --cian-pymmes: #00bcd4;
    --negro-fondo: #f4f6f8;
    --blanco: #ffffff;
}

/* Base */
body { font-family: 'Segoe UI', sans-serif; background: var(--negro-fondo); margin:0; }
.main-header { position: fixed; width: 100%; background: var(--blanco); padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }

/* Hero */
.hero-section { height: 90vh; display: flex; align-items: center; justify-content: center; text-align: center; background: linear-gradient(135deg, var(--azul-i), var(--cian-pymmes)); color: white; padding: 20px; }
.btn-ultracel { display: inline-block; padding: 18px 35px; background: #25d366; color: white; text-decoration: none; border-radius: 50px; font-weight: bold; margin-top: 20px; transition: 0.3s; }
.btn-ultracel:hover { transform: scale(1.05); }

/* Botón Flotante */
.whatsapp-float {
    position: fixed; bottom: 30px; right: 30px; background-color: #25d366; color: white;
    border-radius: 50px; padding: 15px 20px; font-size: 30px; z-index: 2000;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* Grid y Tarjetas */
.container { max-width: 1000px; margin: 0 auto; padding: 60px 20px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.service-card { background: white; padding: 25px; border-radius: 10px; border-bottom: 3px solid var(--azul-i); text-align: center; }
.contact-form-wrapper { background: white; padding: 40px; border-radius: 10px; }

/* Impedir selección de texto en todo el sitio */
body {
    -webkit-user-select: none; /* Safari */
    -ms-user-select: none;     /* IE 10+ */
    user-select: none;         /* Standard */
}

/* Evitar que las imágenes se puedan guardar arrastrándolas */
img {
    pointer-events: none;
    -webkit-user-drag: none;
}