/* ==============================
   VARIABLES DE COLORES
================================= */
:root {
    --celeste: #0096b2;
    --celeste-claro: #5ecad9;
    --celeste-oscuro: #00677d;

    --naranja: #ff6a00;
    --naranja-claro: #ffa45e;
    --naranja-oscuro: #c45000;

    --gris-oscuro: #111827;
    --gris-medio: #374151;
    --gris-claro: #f3f4f6;
}

/* ==============================
   GENERAL
================================= */
body {
    margin: 0;
    font-family: "Segoe UI", sans-serif;
    color: white;
}

.pantalla {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 20px;
}

h1, h2, h3 {
    margin: 0;
}

/* ==============================
   NAVBAR
================================= */
.nav {
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(0,0,0,0.55);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    backdrop-filter: blur(6px);
    z-index: 1000;
}

.logo {
    height: 45px;
    margin-right: 20px;
}

.nav a {
    color: white;
    margin: 0 12px;
    text-decoration: none;
    font-weight: 500;
}

.nav a:hover {
    color: var(--celeste-claro);
}

/* ==============================
   HERO
================================= */
.hero {
    background: url("imagenes/fondo-hero.jpg") center/cover no-repeat;
}

.overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.55);
}

.hero .contenido {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.frase {
    margin: 20px 0;
    font-size: 1.3rem;
    color: var(--celeste-claro);
}

.btn-principal {
    background: var(--naranja);
    padding: 15px 30px;
    border-radius: 8px;
    color: white;
    font-size: 1.2rem;
    text-decoration: none;
    margin-top: 20px;
    display: inline-block;
}

.btn-principal:hover {
    background: var(--naranja-oscuro);
}

/* ==============================
   SECCIONES
================================= */
.seccion-oscura {
    background: url("imagenes/fondo-empresas.jpg") center/cover no-repeat;
}

.seccion-clara {
    background-color: var(--gris-claro);
    color: #000;
}

.lista {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.lista li {
    margin: 6px 0;
    font-size: 1.1rem;
}

/* ==============================
   SERVICIOS GRID
================================= */
.grid-servicios {
    display: grid;
    gap: 20px;
    margin-top: 30px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.tarjeta {
    background: white;
    color: #000;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0px 0px 12px rgba(0,0,0,0.1);
}

/* ==============================
   CONTACTO
================================= */

.btn-whatsapp {
    background: #25d366;
    padding: 15px 35px;
    color: black;
    border-radius: 10px;
    text-decoration: none;
    font-size: 1.2rem;
    margin-top: 20px;
    display: inline-block;
    font-weight: bold;
}

.contact-info {
    font-size: 1.2rem;
    margin: 20px 0;
}