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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

/* HERO */
.hero {
    position: relative;
    background: url("assets/img/termografia-electrica-industrial.jpg") center/cover no-repeat;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.logo {
    width: 160px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 40px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 20px;
}

.phone {
    margin-top: 15px;
    font-size: 18px;
}

.btn {
    background: #25D366;
    color: white;
    padding: 14px 28px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    font-size: 28px;
    padding: 15px;
    border-radius: 50%;
    text-decoration: none;
    z-index: 999;
}

/* SERVICES */
.services {
    padding: 80px 20px;
    text-align: center;
}

.services h2 {
    margin-bottom: 40px;
    font-size: 30px;
}

.cards {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.card {
    background: #f4f4f4;
    padding: 20px;
    border-radius: 8px;
    flex: 1;
}

.card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 15px;
}

/* GALLERY */
.gallery {
    padding: 80px 20px;
    text-align: center;
    background: #f9f9f9;
}

.gallery-grid {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.gallery-grid img {
    width: 100%;
    border-radius: 8px;
}

/* CONTACT */
.contact {
    background: #0a192f;
    color: white;
    padding: 60px 20px;
    text-align: center;
}

/* FOOTER */
footer {
    background: black;
    color: white;
    text-align: center;
    padding: 20px;
}

/* RESPONSIVE */
@media (max-width: 768px) {

    .hero {
        height: auto;
        padding: 100px 20px;
    }

    .hero h1 {
        font-size: 26px;
    }

    .hero p {
        font-size: 16px;
    }

    .cards {
        flex-direction: column;
    }

    .gallery-grid {
        flex-direction: column;
    }
}