:root {
  --sage: #78866b;
  --moss: #31402d;
  --cream: #f6f0e6;
  --paper: #fffaf2;
  --ink: #1d231c;
  --muted: #6f746a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.header {
  padding: 28px 7vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--moss);
  color: var(--paper);
  font-family: Arial, sans-serif;
  font-weight: 900;
}

nav {
  display: flex;
  gap: 24px;
  font-family: Arial, sans-serif;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero {
  padding: 90px 7vw 120px;
  text-align: center;
  border-top: 1px solid rgba(49, 64, 45, 0.16);
}

.small {
  color: var(--sage);
  font-family: Arial, sans-serif;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1000px;
  margin: 18px auto 24px;
  font-size: clamp(3.4rem, 8vw, 8.5rem);
  line-height: 0.92;
  font-weight: 400;
  letter-spacing: -0.07em;
}

h2 {
  font-size: clamp(2.4rem, 5vw, 5rem);
  line-height: 1;
  font-weight: 400;
  letter-spacing: -0.05em;
}

.lede {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1.75;
}

.manifesto {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  padding: 100px 7vw;
  background: var(--paper);
}

.quote {
  border-left: 8px solid var(--sage);
  padding-left: 30px;
}

.quote span {
  display: block;
  color: var(--sage);
  font-size: 7rem;
  line-height: 0.7;
}

.quote p {
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1.04;
}

.text-block p,
.advisory p,
.questions p,
footer p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.05rem;
}

.advisory {
  padding: 110px 7vw;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.advisory article {
  min-height: 260px;
  padding: 28px;
  background: rgba(255, 250, 242, 0.8);
  border: 1px solid rgba(49, 64, 45, 0.14);
}

.advisory .large-card {
  grid-column: span 2;
  grid-row: span 2;
  background: var(--moss);
  color: var(--paper);
}

.large-card p {
  color: #d9dfd1;
}

.numbers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 0 7vw 100px;
  gap: 18px;
}

.numbers div {
  padding: 36px;
  border-top: 1px solid var(--moss);
  border-bottom: 1px solid var(--moss);
}

.numbers strong {
  display: block;
  font-size: clamp(4rem, 8vw, 8rem);
  font-weight: 400;
  line-height: 0.9;
  color: var(--sage);
}

.numbers span {
  color: var(--muted);
  font-family: Arial, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.reflection {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  padding: 100px 7vw;
  background: var(--paper);
}

.reflection-copy p,
.library p,
.principles p {
  color: var(--muted);
  line-height: 1.75;
  font-size: 1.05rem;
}

.library {
  padding: 110px 7vw;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.library-grid article {
  padding: 28px;
  min-height: 300px;
  background: var(--paper);
  border: 1px solid rgba(49, 64, 45, 0.14);
}

.library-grid h3 {
  font-size: 1.65rem;
  font-weight: 400;
}

.questions {
  padding: 100px 7vw;
  background: var(--paper);
}

.accordion {
  max-width: 860px;
  margin-top: 34px;
}

.accordion button {
  width: 100%;
  border: 0;
  border-top: 1px solid rgba(49, 64, 45, 0.25);
  background: transparent;
  padding: 24px 0;
  text-align: left;
  font: inherit;
  font-size: 1.5rem;
  cursor: pointer;
}

.accordion p {
  margin-bottom: 28px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(49, 64, 45, 0.2);
  padding: 1px 7vw 100px;
}

.principles div {
  padding: 30px;
  background: var(--cream);
}

.principles span {
  display: block;
  margin-bottom: 18px;
  color: var(--sage);
  font-family: Arial, sans-serif;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

footer {
  padding: 90px 7vw;
  background: var(--moss);
  color: var(--paper);
  text-align: center;
}

footer a {
  display: inline-block;
  margin-top: 12px;
  color: #d8eaa8;
  font-family: Arial, sans-serif;
  font-weight: 900;
}

@media (max-width: 820px) {
  .header,
  nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .manifesto,
  .advisory,
  .numbers,
  .reflection,
  .library-grid,
  .principles {
    grid-template-columns: 1fr;
  }

  .advisory .large-card {
    grid-column: auto;
    grid-row: auto;
  }
}