:root {
  font-family: system-ui, sans-serif;
  color: #172b30;
  background: #f6f5ef;
  line-height: 1.65;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
header,
main,
footer {
  max-width: 1000px;
  margin: auto;
  padding: 28px;
}
header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid #c8d0ca;
}
a {
  color: #155b4d;
  text-underline-offset: 0.2em;
}
nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.08;
  max-width: 820px;
  letter-spacing: -0.04em;
}
h2 {
  font-size: 1.7rem;
  line-height: 1.25;
}
h3 {
  font-size: 1.15rem;
}
.intro {
  font-size: 1.2rem;
  max-width: 760px;
}
.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
section {
  padding: 28px 0;
  border-top: 1px solid #c8d0ca;
}
li {
  margin: 0.8em 0;
}
details {
  border-bottom: 1px solid #c8d0ca;
  padding: 18px 0;
}
summary {
  cursor: pointer;
  font-weight: 600;
}
:focus-visible {
  outline: 3px solid #155b4d;
  outline-offset: 4px;
}
.skip {
  position: absolute;
  left: 12px;
  top: -80px;
}
.skip:focus {
  top: 12px;
  background: white;
  padding: 12px;
}
label {
  display: block;
  font-weight: 600;
  margin-top: 20px;
}
input,
select,
textarea,
button {
  font: inherit;
}
input,
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #6b7972;
  border-radius: 6px;
  background: #fff;
  color: #172b30;
}
textarea {
  min-height: 160px;
}
button {
  padding: 12px 24px;
  background: #155b4d;
  color: white;
  border: 0;
  border-radius: 6px;
  margin-top: 20px;
  cursor: pointer;
}
button:disabled {
  background: #68756f;
  cursor: default;
}
.notice {
  padding: 16px;
  background: #e4ebe2;
  border-left: 4px solid #155b4d;
}
.trap {
  display: none;
}
footer {
  font-size: 0.85rem;
  border-top: 1px solid #c8d0ca;
}
@media (max-width: 600px) {
  header {
    display: block;
    padding: 20px;
  }
  nav {
    margin-top: 16px;
    gap: 16px;
  }
  main,
  footer {
    padding: 20px;
  }
}