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

body {
    font-family: 'Poppins',sans-serif;
    background: #f5f7fb;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

header {
    background: #0d1b2a;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    color: #fff;
    font-size: 28px;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 20px;
    transition: 0.3s;
}

    nav a:hover {
        color: #00b4d8;
    }

.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1518770660439-4636190af475?q=80&w=1400') center/cover no-repeat;
    color: #fff;
    height: 90vh;
    display: flex;
    align-items: center;
    text-align: center;
}

.hero-content {
    width: 100%;
}

.hero h2 {
    font-size: 52px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
}

.btn {
    background: #00b4d8;
    color: #fff;
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

    .btn:hover {
        background: #0096c7;
    }

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 38px;
    color: #0d1b2a;
}

.about-text {
    max-width: 800px;
    margin: auto;
    text-align: center;
    font-size: 18px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
    gap: 25px;
}

.card {
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: 0.3s;
}

    .card:hover {
        transform: translateY(-8px);
    }

    .card h3 {
        margin-bottom: 15px;
        color: #0077b6;
    }

.contact {
    background: #fff;
}

.contact-info {
    text-align: center;
    margin-bottom: 40px;
}

form {
    max-width: 700px;
    margin: auto;
}

    form input,
    form textarea {
        width: 100%;
        padding: 15px;
        margin-bottom: 20px;
        border: 1px solid #ddd;
        border-radius: 10px;
        font-size: 16px;
    }

    form button {
        background: #0077b6;
        color: #fff;
        border: none;
        padding: 15px 30px;
        border-radius: 10px;
        cursor: pointer;
        font-size: 16px;
        transition: 0.3s;
    }

        form button:hover {
            background: #023e8a;
        }

#result {
    margin-top: 20px;
    text-align: center;
    font-weight: 600;
}

footer {
    background: #0d1b2a;
    color: #fff;
    text-align: center;
    padding: 20px;
}

@media(max-width:768px) {

    .hero h2 {
        font-size: 34px;
    }

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

    nav {
        display: none;
    }
}