* {
    box-sizing: border-box;
}

html {
    background: #f4f8ff;
}

body {
    margin: 0;
    color: #284867;
    background: #f4f8ff;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65;
}

a {
    color: #1b6e8a;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    color: #5b55c8;
}

a:active {
    color: #3e3aa0;
}

a:focus-visible {
    outline: 3px solid #43a6b3;
    outline-offset: 3px;
}

.shell {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid #cbd9ec;
    background: #ffffff;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px 0;
}

.logo {
    flex: 0 0 auto;
    color: #2c5f96;
    font-size: 23px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-decoration: none;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px 16px;
}

.site-nav a {
    color: #315a7b;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.site-nav a:hover {
    color: #5b55c8;
}

main {
    padding: 56px 0 68px;
}

section {
    margin: 0 0 52px;
}

.hero-section {
    padding: 32px 0 26px;
    border-bottom: 3px solid #79c5cf;
}

.eyebrow {
    margin-bottom: 14px;
    color: #5b55c8;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    margin-top: 0;
    color: #275d8d;
    line-height: 1.18;
    overflow-wrap: anywhere;
}

h1 {
    max-width: 930px;
    margin-bottom: 22px;
    font-size: 40px;
}

h2 {
    margin-bottom: 18px;
    font-size: 28px;
}

h3 {
    font-size: 21px;
}

p {
    margin: 0 0 18px;
    font-size: 16px;
}

.lead {
    max-width: 920px;
    color: #365f7e;
    font-size: 16px;
}

.split-section {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
}

.split-section article {
    padding-left: 22px;
    border-left: 3px solid #a8b8ef;
}

.route-section {
    padding: 30px;
    border: 1px solid #bfd5eb;
    background: #ffffff;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 20px;
    margin-top: 24px;
}

.link-grid a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid #d3e1ef;
    font-weight: 700;
    text-decoration: none;
}

.site-footer {
    border-top: 1px solid #cbd9ec;
    background: #eaf3ff;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 28px 0;
    color: #486b88;
    font-size: 14px;
}

.footer-inner a {
    font-weight: 800;
    text-decoration: none;
}

@media (max-width: 860px) {
    .header-inner,
    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-nav {
        justify-content: flex-start;
    }

    .split-section,
    .link-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .shell {
        width: min(100% - 28px, 1120px);
    }

    main {
        padding-top: 34px;
    }

    .site-nav {
        gap: 10px 14px;
    }

    .site-nav a {
        font-size: 13px;
    }

    .hero-section {
        padding-top: 18px;
    }

    .route-section {
        padding: 22px 18px;
    }
}