/* =========================================
   VARIABLES Y ESTILOS GLOBALES
   ========================================= */
:root {
    --color-principal: #FFB800; /* Amarillo-naranja brillante */
    --color-oscuro: #1A1A1A;    /* Fondo gris oscuro */
    --color-texto-oscuro: #333333;
    --color-texto-claro: #FFFFFF;
    --color-fondo-claro: #FFFFFF;
    --color-gris-claro: #F5F5F5;
    
    /* Fuente profesional recomendada */
    --fuente-principal: 'Montserrat', 'Open Sans', 'Segoe UI', sans-serif; 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--fuente-principal);
}

html {
    scroll-behavior: smooth;
    /* Frena 130px antes para que el menú no tape los títulos */
    scroll-padding-top: 130px;
}

body {
    background-color: var(--color-fondo-claro);
    color: var(--color-texto-oscuro);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-padding {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    color: var(--color-texto-oscuro);
    margin-bottom: 50px;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.1rem;
    color: #666;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* =========================================
   BOTONES
   ========================================= */
.btn-primary {
    display: inline-block;
    background-color: var(--color-principal);
    color: var(--color-texto-oscuro);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    font-size: 1.1rem;
    text-transform: uppercase;
    box-shadow: 0 3px 6px rgba(0,0,0,0.16);
}

.btn-primary:hover {
    background-color: #e6a600;
    transform: translateY(-2px);
}

/* =========================================
   HEADER Y NAVEGACIÓN
   ========================================= */
.header {
    background-color: var(--color-fondo-claro);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 120px; 
    padding: 10px 0; 
}

.logo-img {
    height: 120px; 
    width: auto;
    max-width: 350px; 
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 15px;
}

.nav-links li {
    display: block;
}

.nav-links a {
    text-decoration: none;
    display: inline-block;
    background-color: var(--color-principal); 
    color: var(--color-oscuro); 
    padding: 12px 25px; 
    border-radius: 5px; 
    font-weight: bold; 
    text-transform: uppercase; 
    font-size: 0.95rem; 
    transition: background 0.3s, color 0.3s, transform 0.2s; 
}

.nav-links a:hover {
    background-color: #e6a600; 
    color: var(--color-oscuro);
    transform: translateY(-2px); 
}

.nav-links a.active {
    background-color: var(--color-oscuro); 
    color: var(--color-principal); 
}

.menu-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
}

/* =========================================
   SECCIÓN HERO (Inicio)
   ========================================= */
.hero {
    height: calc(100vh - 120px); 
    display: flex;
    background-color: var(--color-principal); 
    position: relative;
    overflow: hidden;
    margin-top: 120px; 
}

.hero-image-side {
    flex: 0 0 60%; 
    background-image: url('imagenes/IND1_Izaje-Industrial-Grua-Movil2.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    background-color: #333333; 
}

.hero-image-side::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0; 
    bottom: 0;
    width: 100%; 
    background: linear-gradient(to right, rgba(255, 184, 0, 0) 0%, rgba(255, 184, 0, 0) 50%, rgba(255, 184, 0, 1) 100%);
    z-index: 1;
}

.hero-content-side {
    flex: 0 0 40%; 
    display: flex;
    justify-content: left; 
    align-items: center;
    position: relative;
    padding: 0 5%; 
}

.hero-content-side::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('imagenes/pattern-gears.png'); 
    opacity: 0.08; 
    z-index: 0;
}

.hero-text {
    position: relative;
    z-index: 2;
    color: var(--color-texto-oscuro); 
    max-width: 500px;
    text-align: left; 
}

.hero-text h1 {
    /* TRUCO 2: Clamp hace que el texto sea dinámico. 
       Mínimo 2.5rem (celulares), ideal 4vw (se adapta al ancho), Máximo 3.5rem (monitores grandes) */
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 25px; /* Reduje un poco el margen para que respire más */
}

.hero-text p {
    /* Hacemos el párrafo un poquito más elástico también */
    font-size: clamp(1.05rem, 1.5vw, 1.2rem);
    margin-bottom: 30px;
    font-weight: 500;
    text-align: justify; 
}

.hero-text .btn-primary {
    background-color: var(--color-oscuro);
    color: var(--color-texto-claro);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.hero-text .btn-primary:hover {
    background-color: #333333;
}

/* =========================================
   SECCIÓN SERVICIOS
   ========================================= */
.servicios {
    background-color: var(--color-gris-claro);
}

.grid-servicios {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card-servicio {
    background: var(--color-fondo-claro);
    border-radius: 8px;
    overflow: hidden; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    position: relative; 
}

.card-servicio:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.card-servicio .card-img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
    border-bottom: none; 
}

.card-servicio .card-text-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 25px 25px; 
    background: linear-gradient(to top, rgba(26,26,26,0.9) 0%, rgba(26,26,26,0) 100%); 
    color: var(--color-texto-claro); 
    text-align: left; 
}

.card-servicio .card-text-overlay h3 {
    margin-bottom: 12px;
    color: var(--color-principal); 
    font-size: 1.3rem;
    font-weight: 700;
}

.card-servicio .card-text-overlay p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =========================================
   SECCIÓN TRABAJO EN TERRENO
   ========================================= */
.terreno {
    background-color: var(--color-fondo-claro);
}

.grid-terreno-unforme {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card-terreno {
    background: var(--color-fondo-claro);
    border-radius: 8px;
    overflow: hidden; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    position: relative; 
    height: 550px; 
}

.card-terreno:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.15);
}

.card-terreno .card-img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
}

.card-terreno .card-text-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 25px 25px; 
    background: linear-gradient(to top, rgba(26,26,26,0.9) 0%, rgba(26,26,26,0) 100%); 
    color: var(--color-texto-claro); 
    text-align: left; 
    z-index: 1; 
}

.card-terreno .card-text-overlay h3 {
    margin-bottom: 12px;
    color: var(--color-principal); 
    font-size: 1.3rem;
    font-weight: 700;
}

.card-terreno .card-text-overlay p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =========================================
   SECCIÓN POR QUÉ ELEGIRNOS
   ========================================= */
.elegirnos {
    background-color: var(--color-oscuro);
    color: var(--color-texto-claro);
}

.elegirnos-content {
    display: flex;
    align-items: center;
    gap: 60px; 
}

.elegirnos-img-side {
    flex: 1;
}

.elegirnos-img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    border-bottom: 5px solid var(--color-principal); 
}

.elegirnos-text-side {
    flex: 1;
}

.section-title.left-align {
    text-align: left;
    color: var(--color-principal); 
    margin-bottom: 25px;
}

.elegirnos-description {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 35px;
    color: #cccccc; 
    text-align: justify;
}

.elegirnos-lista {
    list-style: none;
}

.elegirnos-lista li {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 25px;
}

.elegirnos-lista i {
    color: var(--color-principal); 
    font-size: 1.8rem;
    margin-top: 3px;
}

.elegirnos-lista strong {
    display: block;
    color: var(--color-texto-claro);
    font-size: 1.15rem;
    margin-bottom: 5px;
}

.elegirnos-lista p {
    color: #aaaaaa;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* =========================================
   SECCIÓN CONTACTO
   ========================================= */
.contacto {
    background-color: var(--color-gris-claro);
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.input-group {
    margin-bottom: 20px;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-container .btn-primary {
    width: 100%;
}

/* =========================================
   FOOTER COMPLETO
   ========================================= */
.footer {
    background-color: var(--color-oscuro);
    color: var(--color-texto-claro);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

/* ESTE ES EL AJUSTE DEL LOGO EN EL FOOTER */
.footer-info .logo-img {
    background-color: var(--color-fondo-claro); /* Fondo blanco que funciona de marco */
    padding: 12px 20px; /* Le da aire al logo dentro del marco */
    border-radius: 8px; /* Bordes suaves */
    box-shadow: 0 4px 15px rgba(0,0,0,0.4); /* Sombra elegante contra el fondo oscuro */
    margin-bottom: 20px;
    max-height: 100px; /* Controlamos la altura en el footer */
}

.footer-social h3,
.footer-contact h3 {
    color: var(--color-principal);
    margin-bottom: 20px;
}

.redes-iconos a {
    color: var(--color-texto-claro);
    font-size: 1.5rem;
    margin-right: 15px;
    transition: color 0.3s;
}

.redes-iconos a:hover {
    color: var(--color-principal);
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #333;
    padding-top: 20px;
    font-size: 0.8rem;
}

/* Añadir este apartado cuando las redes sociales esten listas     
        <div class="footer-social">
        <h3>Síguenos</h3>
        <div class="redes-iconos">
            <a href="#" target="_blank"><i class="fab fa-facebook-f"></i></a>
            <a href="#" target="_blank"><i class="fab fa-instagram"></i></a>
        </div>
    </div>*/

/* =========================================
   BOTÓN WHATSAPP FLOTANTE
   ========================================= */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1001;
    transition: transform 0.3s;
    text-decoration: none;
}

.whatsapp-btn i {
    font-size: 1.5rem;
    margin-right: 10px;
}

.whatsapp-btn:hover {
    transform: scale(1.05);
}

/* =========================================
   MEDIA QUERIES (Para Celulares y Tablets)
   ========================================= */
@media (max-width: 992px) {
    .grid-servicios, .grid-terreno-unforme {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-text h1 {
        font-size: 3rem;
    }
    .elegirnos-content {
        flex-direction: column; 
        gap: 40px;
    }
    .section-title.left-align {
        text-align: center; 
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 120px; /* Ajustado al tamaño de tu nuevo menú */
        left: 0;
        width: 100%;
        background-color: var(--color-fondo-claro);
        text-align: center;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    .nav-links.active {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
    .hero {
        flex-direction: column;
    }
    .hero-image-side, .hero-content-side {
        width: 100%;
        flex: auto;
        height: 50vh;
    }
    .hero-text {
        text-align: center;
        padding: 20px;
    }
    .hero-image-side::after {
        background: linear-gradient(to bottom, rgba(26,26,26,0), rgba(26,26,26,1));
    }
    .grid-servicios, .grid-terreno-unforme {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-info .logo-img {
        margin: 0 auto 20px auto; /* Centrar la placa del logo en celulares */
        display: block;
    }
}