:root {
    --navy: #05274c;
    --deep: #031d39;
    --blue: #1768c7;
    --ink: #102a4b;
    --muted: #4d5b6a;
    --line: #d4dae1;
    --max: 1160px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--ink);
    line-height: 1.5;
}

a {
    color: inherit;
}

.container {
    width: min(calc(100% - 42px), var(--max));
    margin: auto;
}

/* Header and navigation */

header {
    height: 92px;
    background: linear-gradient(90deg, #05274c, #062f5b);
    position: relative;
    z-index: 5;
}

.nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    width: 155px;
    height: 125px;
    object-fit: contain;
    position: relative;
    top: 17px;
}

.nav nav {
    display: flex;
    align-items: center;
    gap: 34px;
}

.nav nav a {
    text-decoration: none;
    color: #fff;
    font-weight: 700;
    font-size: 0.88rem;
}

.nav nav .join,
.button {
    background: var(--blue);
    border-radius: 5px;
    padding: 13px 24px;
}

/* Hero */

.hero {
    position: relative;
    min-height: 485px;
    background: radial-gradient(
        circle at 65% 30%,
        #315d89 0,
        #163d67 32%,
        #0a2d52 67%,
        #061f3d 100%
    );
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 44% 0 0;
    background:
        linear-gradient(
            170deg,
            transparent 0 28%,
            rgba(255, 255, 255, 0.08) 29% 30%,
            transparent 31%
        ),
        linear-gradient(
            12deg,
            transparent 0 42%,
            rgba(255, 255, 255, 0.06) 43% 44%,
            transparent 45%
        );
    opacity: 0.8;
}

.hero::after {
    content: "KANSAS CITY";
    position: absolute;
    right: 4%;
    bottom: -25px;
    font-size: 10vw;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.035);
    letter-spacing: 0.04em;
}

.hero-inner {
    min-height: 485px;
    display: grid;
    grid-template-columns: 42% 58%;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-identity {
    color: #fff;
    border-left: 5px solid rgba(255, 255, 255, 0.8);
    padding: 10px 0 10px 28px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-kc {
    font-size: clamp(5rem, 10vw, 8.5rem);
    font-weight: 900;
    line-height: 0.8;
    letter-spacing: -0.08em;
    color: rgba(255, 255, 255, 0.16);
}

.hero-infragard {
    margin-top: 18px;
    font-size: clamp(1.8rem, 3vw, 3rem);
    font-weight: 900;
    font-style: italic;
    letter-spacing: 0.04em;
}

.hero-tagline {
    margin-top: 5px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: #b9d1e7;
}

.hero-copy {
    color: #fff;
    padding-left: 15px;
}

.hero-copy h1 {
    font-size: clamp(2.5rem, 4vw, 4.2rem);
    line-height: 1.04;
    margin: 0 0 20px;
    letter-spacing: -0.035em;
}

.hero-copy p {
    font-size: 1.15rem;
    max-width: 620px;
    margin: 0 0 28px;
}

.button {
    display: inline-block;
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}

/* Mission pillars */

.pillars {
    background: #fff;
    padding: 34px 0;
}

.pillar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.pillar-grid article {
    text-align: center;
    padding: 5px 32px;
    border-right: 1px solid var(--line);
}

.pillar-grid article:last-child {
    border-right: 0;
}

.pillar-grid .icon {
    height: 55px;
    color: #083667;
    font-size: 2.2rem;
    font-weight: 900;
    letter-spacing: -8px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.pillar-grid h2 {
    font-size: 1.25rem;
    margin: 5px 0;
}

.pillar-grid p {
    font-size: 0.9rem;
    color: #333;
    margin: 0;
}

/* About */

.dark {
    background: linear-gradient(90deg, #062a50, #073c70);
    color: #fff;
}

.about {
    padding: 38px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about h2 {
    font-size: 2rem;
    margin: 0 0 10px;
}

.about p {
    margin: 0;
    color: #e1eaf3;
}

.about-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    border-left: 3px solid rgba(255, 255, 255, 0.45);
    padding-left: 24px;
}

.about-brand strong {
    font-style: italic;
    font-size: 2.3rem;
    line-height: 1;
}

.about-brand span {
    margin-top: 6px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.about-brand small {
    margin-top: 5px;
    color: #b9d1e7;
    font-size: 0.7rem;
    letter-spacing: 0.16em;
}

/* Content sections */

.content {
    padding: 75px 0;
}

.content.light {
    background: #f3f5f7;
}

.split {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 70px;
}

.eyebrow {
    font-size: 0.76rem;
    letter-spacing: 0.18em;
    color: var(--blue);
    font-weight: 800;
    margin: 0 0 8px;
}

.content h2 {
    font-size: 2.6rem;
    line-height: 1.08;
    margin: 0;
}

.content p {
    color: var(--muted);
}

.text-link {
    color: #075ba9;
    text-decoration: none;
    font-weight: 700;
}

/* Resources */

.resource-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 28px;
}

.resource-grid a {
    padding: 22px 18px;
    border: 1px solid var(--line);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.resource-grid b {
    color: #073765;
}

.resource-grid span {
    font-size: 0.82rem;
    color: var(--muted);
}

/* Footer */

footer {
    background: var(--deep);
    color: #d7e1eb;
    padding: 27px 0;
}

.footer {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    align-items: center;
    font-size: 0.78rem;
}

.footer div:last-child {
    display: flex;
    gap: 24px;
}

.footer a {
    text-decoration: none;
    color: #fff;
}

/* Interior pages and long-form documents */

.page-intro {
    padding: 72px 0 68px;
    background:
        linear-gradient(100deg, rgba(6, 42, 80, 0.96), rgba(7, 60, 112, 0.9)),
        radial-gradient(circle at 80% 20%, #315d89, #061f3d 70%);
}

.page-intro .eyebrow {
    color: #8fc4f5;
}

.page-intro h1 {
    margin: 0;
    font-size: clamp(2.7rem, 5vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.page-intro p:last-child {
    max-width: 650px;
    margin: 18px 0 0;
    color: #e1eaf3;
    font-size: 1.1rem;
}

.document {
    max-width: 920px;
    padding: 52px 64px 64px;
    background: #fff;
    border: 1px solid var(--line);
    box-shadow: 0 12px 35px rgba(3, 29, 57, 0.08);
}

.document-back {
    display: inline-block;
    margin-bottom: 38px;
    font-size: 0.9rem;
}

.document-back:hover,
.document-back:focus-visible {
    text-decoration: underline;
}

.document-heading {
    padding: 0 0 32px;
    border-bottom: 1px solid var(--line);
}

.document-heading h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.025em;
}

.document .document-date {
    margin: 20px 0 0;
    font-size: 0.9rem;
    line-height: 1.7;
}

.document h2 {
    font-size: 1.7rem;
    line-height: 1.2;
    margin: 48px 0 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid #dce8f3;
}

.document h3 {
    margin: 28px 0 8px;
    color: #073765;
    font-size: 1.08rem;
}

.document p,
.document li {
    color: var(--muted);
}

.document p {
    margin: 0 0 16px;
}

.document ul {
    margin: 0 0 20px;
    padding-left: 24px;
}

.document li + li {
    margin-top: 5px;
}

.document a {
    color: #075ba9;
}

/* Responsive layout */

@media (max-width: 850px) {
    header {
        height: auto;
    }

    .nav {
        padding: 10px 0;
    }

    .nav-logo {
        position: static;
        width: 110px;
        height: 85px;
    }

    .nav nav {
        gap: 12px;
    }

    .nav nav a:not(.join) {
        display: none;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 55px 0;
        gap: 40px;
    }

    .hero-identity {
        margin: auto;
        align-items: center;
        border-left: 0;
        border-bottom: 3px solid rgba(255, 255, 255, 0.5);
        padding: 0 20px 22px;
    }

    .hero-copy {
        padding: 0;
    }

    .pillar-grid {
        grid-template-columns: 1fr 1fr;
    }

    .pillar-grid article {
        margin: 12px 0;
    }

    .about-grid,
    .split {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .resource-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer {
        display: block;
    }

    .footer div:last-child {
        margin-top: 15px;
        flex-wrap: wrap;
    }
}

@media (max-width: 520px) {
    .pillar-grid,
    .resource-grid {
        grid-template-columns: 1fr;
    }

    .pillar-grid article {
        border-right: 0;
        border-bottom: 1px solid var(--line);
        padding: 20px;
    }

    .about-brand strong {
        font-size: 1.6rem;
    }

    .page-intro {
        padding: 50px 0 46px;
    }

    .document {
        width: min(calc(100% - 24px), var(--max));
        padding: 34px 24px 44px;
    }

    .document h2 {
        font-size: 1.45rem;
    }
}