:root {
  color-scheme: light;
  font-family: ui-sans-serif, system-ui, sans-serif;
  color: #18332d;
  background: #f4f1e8;
}

* {
  box-sizing: border-box;
}

body {
  max-width: 54rem;
  margin: 0 auto;
  padding: 1.25rem;
}

nav {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-block: 1rem;
}

nav strong {
  margin-right: auto;
}

a {
  color: #087f6b;
}

h1 {
  margin-block: 3rem 1.25rem;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 0.95;
}

main > img {
  display: block;
  width: 100%;
  max-height: 24rem;
  object-fit: cover;
  border-radius: 1rem;
}

section,
form {
  display: grid;
  gap: 1rem;
  margin-block: 2rem;
}

#submission-list {
  display: grid;
  gap: 1rem;
  padding: 0;
  list-style: none;
}

#submission-list li {
  padding: 1rem;
  border: 1px solid #b5c8c0;
  border-radius: 0.75rem;
  background: #fffdf7;
}

#submission-list p {
  white-space: pre-wrap;
}

#submission-list time {
  color: #5f746e;
  font-size: 0.875rem;
}

label {
  font-weight: 700;
}

input,
textarea,
button {
  width: 100%;
  padding: 0.8rem;
  font: inherit;
  border: 1px solid #78958d;
  border-radius: 0.5rem;
}

button {
  color: white;
  background: #087f6b;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
}

footer {
  margin-top: 4rem;
  color: #5f746e;
}

footer section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

footer section h2 {
  width: 100%;
  margin-bottom: 0;
  font-size: 1rem;
}

footer button {
  width: auto;
}