:root {
  --paper: #faf5f0;
  --paper-deep: #f2ebe1;
  --ink: #23201c;
  --ink-soft: #5a544c;
  --teal: #38695e;
  --teal-light: #dcece7;
  --line: #8a7b66;
  --gold: #9a7618;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: "Avenir Next", Avenir, "Helvetica Neue", sans-serif;
}

body {
  margin: 0;
  background:
    radial-gradient(
      circle at 8% 4%,
      rgba(90, 158, 143, 0.13),
      transparent 27rem
    ),
    linear-gradient(180deg, #fffaf5 0%, var(--paper) 34rem);
}

.masthead,
main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.masthead {
  padding: 88px 0 72px;
}

.eyebrow,
.number {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 780px;
  font-size: clamp(3rem, 7vw, 6.7rem);
  line-height: 0.94;
}

.lede {
  max-width: 710px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.6;
}

.recommendation {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(138, 123, 102, 0.5);
}

.recommendation span {
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.recommendation strong {
  font-size: 1.05rem;
}

main {
  border-top: 1px solid var(--line);
}

.concept {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(330px, 1fr);
  gap: clamp(42px, 8vw, 118px);
  align-items: start;
  padding: 96px 0;
  border-bottom: 1px solid rgba(138, 123, 102, 0.5);
}

.concept:nth-child(even) .concept-copy {
  order: 2;
}

.concept:nth-child(even) .frame-link {
  order: 1;
}

.concept-copy {
  position: sticky;
  top: 40px;
  padding-top: 28px;
}

h2 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1;
}

.concept-copy > p:not(.number) {
  margin: 28px 0;
  color: var(--ink-soft);
  font-size: 1.12rem;
  line-height: 1.7;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(138, 123, 102, 0.4);
}

li {
  padding: 14px 0;
  border-bottom: 1px solid rgba(138, 123, 102, 0.4);
  color: var(--ink-soft);
}

.frame-link {
  display: block;
  color: var(--teal);
  text-decoration: none;
}

.frame-link img {
  display: block;
  width: min(100%, 500px);
  height: auto;
  margin-inline: auto;
  border: 1px solid rgba(138, 123, 102, 0.65);
  border-radius: 32px;
  box-shadow: 0 30px 80px rgba(55, 47, 38, 0.14);
}

.frame-link span {
  display: block;
  width: fit-content;
  min-height: 48px;
  margin: 18px auto 0;
  padding: 12px 18px;
  border-bottom: 1px solid currentColor;
  font-weight: 700;
}

.frame-link:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 8px;
  border-radius: 6px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 38px 0 64px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

footer p {
  margin: 0;
}

@media (max-width: 760px) {
  .masthead {
    padding: 56px 0 48px;
  }

  .concept {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 64px 0;
  }

  .concept:nth-child(even) .concept-copy,
  .concept:nth-child(even) .frame-link {
    order: initial;
  }

  .concept-copy {
    position: static;
    padding-top: 0;
  }

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .frame-link img {
    transition:
      transform 220ms ease,
      box-shadow 220ms ease;
  }

  .frame-link:hover img {
    transform: translateY(-4px);
    box-shadow: 0 38px 90px rgba(55, 47, 38, 0.2);
  }
}