:root {
    --navy: #011e39;
    --green: #00a384;
    --mint: #d9f4eb;
    --paper: #f7faf8
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--navy);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65
}

a {
    color: inherit
}

button {
    font: inherit
}

header {
    height: 90px;
    background: var(--paper);
    padding: 0 5vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px
}

.brand {
    font-size: 23px;
    font-weight: 900;
    text-decoration: none;
    line-height: 1
}

.brand img {
    display: block;
    width: 180px;
    height: auto
}

nav {
    display: flex;
    gap: 28px;
    font-size: 13px;
    font-weight: 700
}

nav a {
    text-decoration: none
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    padding: 18px 26px;
    color: white;
    background: var(--navy);
    border: 0;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer
}

.btn:hover {
    background: #123f57
}

.btn.small {
    padding: 13px 20px;
    font-size: 13px
}

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 650px;
    background: var(--green)
}

.hero-copy {
    padding: 65px 5vw 50px
}

.label {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    margin: 0 0 25px
}

h1 {
    font-size: clamp(52px, 6.1vw, 94px);
    letter-spacing: -4px;
    line-height: 1.02;
    margin: 0 0 30px;
    font-weight: 900
}

h1 span {
    color: white
}

.intro {
    font-size: 19px;
    line-height: 1.55;
    margin: 0 0 30px
}

.micro {
    font-size: 12px;
    margin-top: 14px
}

.hero-picture {
    position: relative;
    min-height: 500px;
    overflow: hidden
}

.hero-picture>img {
    width: 100%;
    height: 100%;
    position: absolute;
    object-fit: cover;
    object-position: 55% center
}

.stamp {
    position: absolute;
    right: 25px;
    top: 30px;
    background: var(--navy);
    color: white;
    padding: 25px;
    font-weight: 900;
    font-size: 25px;
    line-height: 1.12;
    transform: rotate(5deg)
}

.image-note {
    position: absolute;
    bottom: 16px;
    left: 18px;
    font-size: 10px;
    color: white;
    background: #011e39bb;
    padding: 5px 9px
}

.ticker {
    background: var(--navy);
    color: white;
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 25px 5vw;
    font-size: clamp(19px, 2.6vw, 37px);
    font-weight: 800;
    letter-spacing: -1px
}

.ticker span:last-child {
    color: var(--green)
}

.section {
    padding: 100px 7vw
}

h2 {
    font-size: clamp(36px, 4.3vw, 64px);
    line-height: 1.08;
    letter-spacing: -2px;
    margin: 0 0 30px
}

em {
    font-style: normal;
    color: var(--green)
}

h3 {
    font-size: 27px;
    line-height: 1.1;
    letter-spacing: -.6px;
    margin: 18px 0
}

p {
    margin: 0 0 22px
}

.story,
.research,
.participate {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8vw
}

.story-copy {
    max-width: 570px
}
.story img {
    width: 100%;
    height: auto;
}

.big {
    font-size: 23px;
    line-height: 1.5
}

.placeholder {
    padding: 20px;
    border-left: 4px solid var(--green);
    background: var(--mint);
    margin: 30px 0
}

.placeholder span {
    font-size: 10px;
    letter-spacing: 2px;
    font-weight: 700
}

.placeholder p {
    font-size: 14px;
    margin: 10px 0 0
}

.textlink {
    font-size: 14px;
    font-weight: 700;
    text-underline-offset: 6px
}

.explain {
    background: var(--navy);
    color: white
}

.section-top {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    align-items: end
}

.section-top>p {
    color: #bed7d5
}

.tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 35px
}

.tiles article {
    padding: 35px;
    border: 1px solid #ffffff30
}

.tiles article:nth-child(2) {
    background: var(--green);
    color: var(--navy)
}

.tiles article:nth-child(3) {
    background: var(--mint);
    color: var(--navy)
}

.tiles svg {
    display: block;
    width: 100px;
    height: 100px;
    fill: none;
    stroke: currentColor;
    stroke-width: 4;
    stroke-linecap: round;
    stroke-linejoin: round;
    margin-bottom: 35px
}

.num {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 2px
}

.tiles p {
    font-size: 14px;
    margin-bottom: 0
}

.research {
    background: white;
    align-items: center
}

.research-art {
    background: var(--mint);
    min-height: 480px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden
}

.research-art>span {
    font-size: clamp(43px, 6vw, 85px);
    font-weight: 900;
    letter-spacing: -4px;
    line-height: .95
}

.research-art svg {
    width: 200px;
    align-self: end;
    stroke: var(--green);
    stroke-width: 10;
    fill: none
}

.research-art small {
    letter-spacing: 2px;
    font-size: 10px;
    font-weight: 800
}

.note {
    font-size: 13px;
    border-left: 3px solid var(--green);
    padding-left: 18px
}

.donate {
    background: var(--green);
    padding: 90px 10vw;
    text-align: center
}

.donate h2 {
    font-size: clamp(40px, 5.5vw, 80px)
}

.donate h2 span {
    color: white
}

.donate>p:not(.label):not(.micro) {
    max-width: 650px;
    margin: 0 auto 30px;
    font-size: 18px
}

.btn.white {
    background: white;
    color: var(--navy);
    font-size: 18px;
    padding: 23px 35px
}

.btn.white:hover {
    background: var(--mint)
}

.participate {
    align-items: center
}

.textbutton {
    border: 0;
    background: none;
    color: var(--navy);
    text-decoration: underline;
    text-underline-offset: 5px;
    margin: 15px;
    cursor: pointer
}

.faq {
    padding-top: 0;
    max-width: 1100px;
    margin: auto
}

details {
    border-bottom: 1px solid #011e3930;
    padding: 22px 0
}

summary {
    font-size: 19px;
    font-weight: 700;
    cursor: pointer
}

details p {
    padding-top: 20px;
    font-size: 14px;
    max-width: 760px
}

footer {
    background: var(--navy);
    color: white;
    padding: 45px 5vw;
    display: flex;
    gap: 25px;
    justify-content: space-between;
    align-items: center;
    font-size: 12px
}

footer p {
    margin: 0
}

footer .brand span {
    color: var(--green)
}

footer button {
    border: 0;
    color: white;
    background: none;
    text-decoration: underline;
    cursor: pointer;
    padding: 10px
}

dialog {
    border: 0;
    max-width: 600px;
    padding: 35px;
    color: var(--navy)
}

dialog h2 {
    font-size: 30px
}

dialog::backdrop {
    background: #011e39bb
}

:focus-visible {
    outline: 3px solid #62ddbd;
    outline-offset: 5px
}

@media(max-width:850px) {
    nav {
        display: none
    }

    .hero {
        grid-template-columns: 1fr
    }

    .hero-copy {
        padding: 45px 6vw
    }

    .hero-picture {
        min-height: 420px
    }

    h1 {
        letter-spacing: -2.5px
    }

    .story,
    .research,
    .participate {
        grid-template-columns: 1fr;
        gap: 35px
    }

    .section {
        padding: 65px 6vw
    }

    .tiles {
        grid-template-columns: 1fr
    }

    .tiles article {
        padding: 28px
    }

    .tiles svg {
        width: 75px;
        height: 75px;
        margin-bottom: 22px
    }

    .section-top {
        display: block
    }

    .research-art {
        min-height: 350px
    }

    .ticker {
        flex-wrap: wrap;
        font-size: 23px;
        padding: 22px 6vw
    }

    .ticker span:last-child {
        display: none
    }

    header {
        padding: 0 6vw;
        height: 80px;
        gap: 15px
    }

    .brand img {
        width: 145px
    }

    .btn.small {
        padding: 12px;
        font-size: 12px
    }

    .donate {
        padding: 65px 6vw
    }

    footer {
        flex-direction: column;
        align-items: start
    }

    .faq {
        padding-top: 0
    }

    .stamp {
        font-size: 20px
    }

    .hero .btn {
        font-size: 13px;
        gap: 10px
    }
}

@media(prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto
    }
}