body {
    font-family: Arial;
    margin: 0;
}

/* HEADER */
header {
    background: #0a1f44;
    color: white;
    text-align: center;
    padding: 20px;
}

.logo img {
    width: 60px;
    vertical-align: middle;
}

.logo h1 {
    display: inline;
    margin-left: 10px;
}

/* NAV */
nav {
    background: #133b7a;
    text-align: center;
    padding: 12px;
}

nav a {
    color: white;
    margin: 15px;
    text-decoration: none;
    font-weight: bold;
}

/* HERO */
.hero {
    background: url('banner.jpg') center/cover no-repeat;
    color: white;
    text-align: center;
    padding: 100px 20px;
}

.btn {
    background: #ffd700;
    padding: 10px 20px;
    color: black;
    text-decoration: none;
    border-radius: 5px;
}

/* GRID */
.grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    padding: 20px;
}

.card {
    background: #f4f4f4;
    padding: 20px;
    flex: 1;
    border-radius: 10px;
    text-align: center;
}

.card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

/* CLIENTS */
.clients {
    background: #eee;
    text-align: center;
    padding: 40px;
}

/* FOOTER */
footer {
    background: #0a1f44;
    color: white;
    text-align: center;
    padding: 10px;
}

/* WHATSAPP */
.whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: green;
    color: white;
    padding: 12px;
    border-radius: 50px;
    text-decoration: none;
}