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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2937;
    line-height: 1.7;
    background: #ffffff;
}

.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a, #1e3a8a);
    color: white;
    padding: 30px 8%;
}

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

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

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 25px;
    font-size: 15px;
}

.hero-content {
    max-width: 900px;
    margin-top: 150px;
}

.hero-content h1 {
    font-size: 70px;
    margin-bottom: 15px;
}

.hero-content h2 {
    font-size: 28px;
    font-weight: 400;
    color: #dbeafe;
    margin-bottom: 25px;
}

.hero-content p {
    font-size: 22px;
    max-width: 750px;
    margin-bottom: 35px;
}

.btn {
    display: inline-block;
    background: #38bdf8;
    color: #0f172a;
    padding: 14px 28px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
}

.section {
    padding: 80px 10%;
    max-width: 1200px;
    margin: auto;
}

.section h2 {
    font-size: 38px;
    margin-bottom: 25px;
    color: #0f172a;
}

.section p {
    font-size: 18px;
    margin-bottom: 18px;
}

.light {
    background: #f8fafc;
    max-width: 100%;
}

.light h2,
.light p,
.light .grid {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.card {
    background: white;
    padding: 28px;
    border-radius: 14px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.07);
    border: 1px solid #e5e7eb;
    font-size: 17px;
}

.card h3 {
    color: #1e3a8a;
    margin-bottom: 12px;
}

.contact {
    text-align: center;
}

footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 25px;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 20px;
    }

    .nav-links {
        text-align: center;
    }

    .nav-links a {
        display: inline-block;
        margin: 8px;
    }

    .hero-content {
        margin-top: 90px;
    }

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

    .hero-content h2 {
        font-size: 22px;
    }

    .hero-content p {
        font-size: 18px;
    }
}