:root {
  color-scheme: light;
  --ink: #17324d;
  --muted: #536577;
  --blue: #0e4963;
  --teal: #b7dbd5;
  --paper: #f5f7f4;
  --white: #fff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1240px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.brand img {
  display: block;
  width: min(256px, 42vw);
  height: auto;
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.site-header nav a,
.site-footer a {
  text-decoration: none;
}

.site-header nav a:hover,
.site-footer a:hover {
  text-decoration: underline;
}

.language-link {
  border: 1px solid #aab8bd;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.95fr);
  align-items: stretch;
  min-height: 470px;
  background: var(--teal);
}

.hero-content {
  align-self: center;
  max-width: 690px;
  justify-self: end;
  padding: 4rem clamp(2rem, 6vw, 6rem) 4rem 2rem;
}

.hero h1 {
  max-width: 650px;
  margin: 0 0 1.1rem;
  font-size: clamp(2.25rem, 4.2vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.hero-content > p:not(.eyebrow) {
  max-width: 600px;
  color: #314c58;
  font-size: 1.1rem;
}

.hero-image {
  min-height: 350px;
  background: center / cover no-repeat url("../wp-content/uploads/2021/08/healthy-climate-social.jpg");
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.button {
  display: inline-block;
  margin-top: 0.8rem;
  border-radius: 4px;
  padding: 0.8rem 1.25rem;
  color: var(--white);
  background: var(--blue);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  background: #07354a;
}

.content-width {
  width: min(1080px, calc(100% - 3rem));
  margin: 0 auto;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  align-items: center;
  gap: 3rem;
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.intro h2,
.closing h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  line-height: 1.18;
}

.care-image {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.letter-section {
  padding: 5rem 0;
  background: var(--white);
}

.letter {
  max-width: 850px;
}

.letter h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.15;
}

.letter h3 {
  margin: 2.4rem 0 0.7rem;
  color: var(--blue);
  font-size: 1.45rem;
  line-height: 1.3;
}

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

.salutation {
  color: var(--ink) !important;
  font-weight: 700;
}

.impact-list,
.action-list {
  padding-left: 1.4rem;
}

.impact-list li,
.action-list li {
  padding: 0.35rem 0 0.35rem 0.3rem;
}

.impact-list li::marker,
.action-list li::marker {
  color: var(--blue);
  font-weight: 700;
}

.signoff {
  margin-top: 2rem;
}

.closing {
  padding-top: 5rem;
  padding-bottom: 5rem;
  text-align: center;
}

.closing p {
  max-width: 720px;
  margin: 0 auto 1rem;
}

.button-dark {
  margin-top: 1.25rem;
}

.site-footer {
  padding: 2rem;
  color: var(--white);
  background: #17324d;
  text-align: center;
}

.site-footer p {
  margin: 0.3rem 0 0;
  color: #d6e0e5;
  font-size: 0.9rem;
}

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    gap: 0.8rem;
    padding: 1rem;
  }

  .site-header nav {
    justify-content: center;
    gap: 0.8rem 1.2rem;
  }

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

  .hero-content {
    justify-self: stretch;
    padding: 3.5rem 1.5rem;
  }

  .hero-image {
    min-height: 260px;
  }

  .intro {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .care-image {
    max-width: 520px;
  }

  .letter-section {
    padding: 3.5rem 0;
  }

  .closing {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }
}