/* Estilos generales y variables */
:root {
    --primary-color: #FF5722; /* Naranja fuerte */
    --secondary-color:#FF5722; /*#FFC107;*/ /* Amarillo */
    --accent-color: #4CAF50; /* Verde para el CTA */
    --dark-color: #212121;
    --light-color: #FAFAFA;
    --text-color: #424242;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--light-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navegación */
.navbar {
    background-color: var(--dark-color);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    color: var(--primary-color);
}

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

.nav-links li a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-links li a:hover {
    color: var(--secondary-color);
}

/* Encabezado (Hero) */
.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://via.placeholder.com/1920x1080.png?text=Proyectos+de+Construcci%C3%B3n') no-repeat center center/cover;
    height: 70vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.7);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.cta-button:hover {
    background-color: #45a049;
    transform: translateY(-3px);
}

/* Secciones */
.section {
    padding: 4rem 0;
    text-align: center;
}

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

.section h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* Servicios */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-item {
    background: white;
    padding: 2rem 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
}

.service-item img {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.service-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Galería */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    padding: 1rem 0;
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

/* Testimonios */
.testimonial-card {
    background: white;
    padding: 2rem;
    margin: 1rem auto;
    max-width: 800px;
    border-left: 5px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: left;
}

.quote {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.author {
    font-weight: bold;
    text-align: right;
    color: var(--primary-color);
}

/* Formulario de Contacto */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 600px;
    margin: 2rem auto 0;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    width: 100%;
}

.contact-form button {
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

/* Botón de WhatsApp */
.whatsapp-button {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 1000;
}

.whatsapp-button img {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-button img:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 16px rgba(0,0,0,0.4);
}

/* Pie de página */
footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    text-align: center;
    padding: 2rem 0;
}

/* Media Queries para responsividad */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
}
.project-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.project-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.project-item:hover img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 77, 153, 0.8);
    color: #fff;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.project-item:hover .project-overlay {
    transform: translateY(0);
}