* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font: 16px/1.7 Arial, Helvetica, sans-serif;
    color: #292929;
    background: #fff;
}

.container {
    width: 90%;
    max-width: 860px;
    margin: 0 auto;
}

/* Header */

header {
    padding: 28px 0 20px;
    border-bottom: 1px solid #ddd;
}

header h1 {
    margin: 0;
    font-size: 28px;
    letter-spacing: -0.5px;
}

header p {
    margin: 2px 0 18px;
    color: #555;
}

nav a {
    margin-right: 20px;
    font-size: 15px;
    text-decoration: none;
}

nav a:hover {
    text-decoration: underline;
}

/* Content */

section {
    padding: 24px 0;
}

h2 {
    margin: 0 0 14px;
    font-size: 25px;
    line-height: 1.3;
    letter-spacing: -0.4px;
}

h3 {
    margin: 22px 0 4px;
    font-size: 18px;
}

p {
    margin: 0 0 14px;
}

.intro {
    padding: 42px 0 34px;
}

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

.intro p {
    max-width: 650px;
}

hr {
    height: 1px;
    margin: 0;
    border: 0;
    background: #ddd;
}

/* Links */

a {
    color: #0645ad;
}

a:hover {
    color: #b00000;
}

/* Footer */

footer {
    margin-top: 24px;
    padding: 20px 0;
    border-top: 1px solid #ddd;
    color: #666;
    font-size: 14px;
}

footer p {
    margin: 3px 0;
}

/* Mobile */

@media (max-width: 600px) {
    header {
        padding-top: 20px;
    }

    header h1 {
        font-size: 24px;
    }

    nav a {
        display: inline-block;
        margin: 5px 16px 5px 0;
    }

    .intro {
        padding: 30px 0 24px;
    }

    .intro h2 {
        font-size: 29px;
    }

    section {
        padding: 20px 0;
    }
}

/* Services grid */

.service-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 32px;
}

.service h3 {
    margin-top: 0;
}

@media (max-width: 600px) {
    .service-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}