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

body {
    line-height: 1.6;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0d6efd;
    padding: 15px 50px;
    color: white;
    position: sticky;
    top: 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

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

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    font-size: 26px;
    cursor: pointer;
}

/* Hero */
.hero {
    height: 90vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
                url('https://images.unsplash.com/photo-1498050108023-c5249f4df085');
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 20px;
}

.hero h1 {
    font-size: 48px;
}

.hero p {
    margin: 15px 0;
}

.btn {
    background: #ffc107;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-weight: bold;
    border-radius: 5px;
}

/* Sections */
.services, .about, .contact {
    padding: 60px 20px;
    text-align: center;
}

.service-box {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.card {
    background: #f4f4f4;
    padding: 20px;
    width: 250px;
    border-radius: 8px;
}

/* Footer */
footer {
    background: #0d6efd;
    color: white;
    text-align: center;
    padding: 15px;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        display: none;
        width: 100%;
    }

    nav ul {
        flex-direction: column;
        text-align: center;
        background: #0d6efd;
        padding: 10px 0;
    }

    nav ul li {
        margin: 10px 0;
    }

    .menu-toggle {
        display: block;
    }

    nav.active {
        display: block;
    }

    .hero h1 {
        font-size: 32px;
    }
}