* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
    background: #0a2540;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    color: #fff;
    font-size: 22px;
    font-weight: bold;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    color: #fff;
    text-decoration: none;
}

/* Hero */
.hero {
    background: linear-gradient(to right, #0a2540, #0d6efd);
    color: #fff;
    text-align: center;
    padding: 100px 20px;
}

.hero .btn {
    display: inline-block;
    margin: 10px;
    padding: 12px 25px;
    background: #fff;
    color: #0a2540;
    text-decoration: none;
    border-radius: 5px;
}

.hero .secondary {
    background: transparent;
    color: #fff;
    border: 1px solid #fff;
}

/* Services */
.services {
    padding: 60px 20px;
    background: #f4f6f8;
}

.services h2 {
    text-align: center;
    margin-bottom: 40px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.service-card {
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.service-card i {
    font-size: 30px;
    color: #0d6efd;
}

/* About */
.about {
    padding: 60px 20px;
    text-align: center;
}

/* Contact */
.contact {
    padding: 60px 20px;
    background: #f4f6f8;
    text-align: center;
}

.contact form {
    max-width: 400px;
    margin: auto;
}

.contact input,
.contact textarea {
    width: 100%;
    margin: 10px 0;
    padding: 12px;
}

.contact button {
    padding: 12px;
    background: #0d6efd;
    color: #fff;
    border: none;
    cursor: pointer;
}

.whatsapp {
    display: inline-block;
    margin-top: 20px;
    color: #25d366;
    font-size: 18px;
    text-decoration: none;
}

/* Footer */
footer {
    background: #0a2540;
    color: #fff;
    text-align: center;
    padding: 15px;
}