:root {
  color-scheme: light;
  --paper: #f5f2e9;
  --paper-deep: #ebe8dd;
  --paper-light: #fbf9f3;
  --ink: #1d3338;
  --ink-soft: #40585b;
  --muted: #657776;
  --line: #d3d5ca;
  --blue: #365e69;
  --blue-dark: #244851;
  --green: #72887a;
  --sage-light: #dce2d7;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 1.5rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button { font: inherit; }
.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  color: var(--paper-light);
  background: var(--blue-dark);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(245, 242, 233, 0.96);
}
.header-inner {
  width: min(1240px, calc(100% - 64px));
  margin: 0 auto;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex: 0 0 auto;
}
.wordmark-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: var(--paper);
  background: var(--blue);
  font: 700 1.7rem/1 var(--serif);
  letter-spacing: -0.11em;
  padding: 0 0.2rem 0.2rem 0;
}
.wordmark-mark span { color: #b7c8b8; }
.wordmark-text {
  font: 700 0.85rem/1.22 var(--sans);
  letter-spacing: -0.025em;
}
.wordmark-text span { font-weight: 500; color: var(--muted); }
.site-nav {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.25rem 1.35rem;
  flex-wrap: wrap;
}
.site-nav a, .footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.015em;
  transition: color 160ms ease;
}
.site-nav a:hover, .footer-links a:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.menu-toggle { display: none; }

.intro-wrap {
  width: min(1240px, calc(100% - 64px));
  min-height: 580px;
  margin: 0 auto;
  padding: 5.7rem 0 5.1rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2rem;
}
.intro-copy { padding: 1rem 0 0 5.3%; position: relative; z-index: 1; }
.eyebrow {
  margin: 0 0 1.45rem;
  color: var(--blue);
  font-size: 0.65rem;
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow-rule {
  display: inline-block;
  width: 28px;
  height: 1px;
  margin: 0 0.6rem 0.2rem 0;
  background: var(--green);
}
h1, h2, p { margin-top: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.045em; }
h1 {
  margin-bottom: 1.55rem;
  font-size: clamp(3.6rem, 6vw, 5.3rem);
  line-height: 0.99;
}
h1 em, h2 em { color: var(--blue); font-weight: 400; }
.intro-lede {
  width: min(420px, 100%);
  margin-bottom: 1.75rem;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.8;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--blue-dark);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid #91a398;
  padding: 0 0 0.38rem;
}
.text-link span { font-size: 1rem; transition: transform 160ms ease; }
.text-link:hover span { transform: translate(2px, 2px); }
.intro-art { position: relative; min-height: 420px; display: flex; align-items: center; justify-content: center; }
.art-frame {
  position: relative;
  width: min(440px, 100%);
  height: 420px;
}
.art-frame::before {
  content: "";
  position: absolute;
  top: 17px;
  left: 16%;
  width: 68%;
  height: 88%;
  border: 1px solid #cbd2c5;
  border-radius: 50% 50% 45% 45% / 45% 45% 55% 55%;
  transform: rotate(-14deg);
}
.orbit {
  position: absolute;
  border: 1px solid #9eafa4;
  border-radius: 50%;
  transform: rotate(28deg);
}
.orbit-one { top: 45px; left: 3%; width: 92%; height: 75%; }
.orbit-two { top: 85px; left: 12%; width: 73%; height: 70%; transform: rotate(-36deg); border-color: #c6cfc2; }
.art-sun {
  position: absolute;
  top: 45px;
  right: 19%;
  width: 87px;
  height: 87px;
  border-radius: 50%;
  background: #d9dfcf;
}
.art-page {
  position: absolute;
  top: 77px;
  left: 31%;
  width: 41%;
  height: 275px;
  border: 1px solid #c4c9bc;
  background: var(--paper-light);
  box-shadow: 0 15px 36px rgba(46, 68, 63, 0.1);
  transform: rotate(7deg);
}
.page-back { top: 93px; left: 28%; background: #e7e9de; transform: rotate(-10deg); }
.page-front { padding: 51px 28px 24px; }
.page-line {
  display: block;
  width: 100%;
  height: 2px;
  margin-bottom: 13px;
  background: #b7c2b8;
}
.line-short { width: 45%; }
.line-mid { width: 72%; }
.page-stamp {
  position: absolute;
  bottom: 23px;
  left: 26px;
  color: var(--blue);
  font: 700 0.56rem/1.5 var(--mono);
  letter-spacing: 0.12em;
}
.art-note {
  position: absolute;
  z-index: 2;
  color: var(--blue);
  font: 600 0.58rem/1 var(--mono);
  letter-spacing: 0.19em;
}
.note-top { top: 35px; left: 14%; transform: rotate(-20deg); }
.note-bottom { bottom: 33px; right: 7%; transform: rotate(-18deg); }
.art-dot { position: absolute; z-index: 2; width: 9px; height: 9px; border-radius: 50%; background: var(--green); }
.dot-one { top: 143px; right: 11%; }
.dot-two { left: 12%; bottom: 115px; width: 6px; height: 6px; background: var(--blue); }
.art-caption {
  position: absolute;
  right: -1%;
  bottom: 4px;
  margin: 0;
  color: var(--muted);
  font: italic 0.9rem/1.45 var(--serif);
}

.principles {
  min-height: 142px;
  padding: 2.15rem max(32px, calc((100% - 1120px) / 2));
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.1fr;
  align-items: center;
  gap: 1.5rem;
  color: var(--paper-light);
  background: var(--blue-dark);
}
.principle-item { display: flex; align-items: flex-start; gap: 1rem; }
.principle-index { margin-top: 0.1rem; color: #aebfac; font: 0.62rem/1.5 var(--mono); }
.principle-item p { margin: 0; color: #d9e0d5; font: 0.83rem/1.4 var(--serif); }
.principle-item strong { color: var(--paper-light); font-weight: 400; }
.principles-note {
  justify-self: end;
  margin: 0;
  color: #bdcbc0;
  font: italic 0.94rem/1.5 var(--serif);
}

.topics-section {
  width: min(1060px, calc(100% - 64px));
  margin: 0 auto;
  padding: 7.6rem 0 7.9rem;
}
.section-heading {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  align-items: end;
  gap: 4rem;
  margin-bottom: 3.5rem;
}
.section-heading .eyebrow { margin-bottom: 1.1rem; }
h2 { font-size: clamp(2.7rem, 4.8vw, 4.2rem); line-height: 1.04; margin-bottom: 0; }
.section-intro {
  max-width: 365px;
  margin: 0 0 0.3rem;
  color: var(--muted);
  font-size: 0.91rem;
  line-height: 1.8;
}
.topic-list { border-top: 1px solid #bfc8be; }
.topic-row {
  min-height: 91px;
  display: grid;
  grid-template-columns: 46px minmax(190px, 0.83fr) 1.15fr 30px;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding 180ms ease, background-color 180ms ease;
}
.topic-row:hover, .topic-row:focus-visible { padding-right: 0.8rem; padding-left: 0.8rem; background: rgba(220, 226, 215, 0.46); }
.topic-number { color: var(--green); font: 0.65rem/1 var(--mono); }
.topic-name { font: 400 1.25rem/1.25 var(--serif); letter-spacing: -0.02em; }
.topic-description { max-width: 390px; color: var(--muted); font-size: 0.76rem; line-height: 1.55; }
.topic-arrow { justify-self: end; color: var(--blue); font-size: 1rem; transition: transform 160ms ease; }
.topic-row:hover .topic-arrow { transform: translate(3px, -3px); }

.editorial-note {
  position: relative;
  min-height: 430px;
  padding: 5.5rem max(32px, calc((100% - 1060px) / 2));
  display: grid;
  grid-template-columns: 1fr 0.43fr;
  align-items: center;
  gap: 4rem;
  overflow: hidden;
  background: var(--paper-deep);
}
.editorial-note::after {
  content: "";
  position: absolute;
  width: 350px;
  height: 350px;
  top: -155px;
  right: -60px;
  border: 1px solid #c6cec0;
  border-radius: 50%;
  box-shadow: 0 0 0 28px rgba(198, 206, 192, 0.18), 0 0 0 57px rgba(198, 206, 192, 0.13);
}
.note-mark {
  position: absolute;
  top: 25px;
  left: max(20px, calc((100% - 1115px) / 2));
  color: #a9b7a7;
  font: 8rem/1 var(--serif);
}
.editorial-copy { position: relative; z-index: 1; max-width: 610px; padding-top: 1.5rem; }
.editorial-copy .eyebrow { margin-bottom: 1.3rem; }
.editorial-copy h2 { margin-bottom: 1.5rem; font-size: clamp(2.55rem, 4vw, 3.65rem); }
.editorial-copy > p:not(.eyebrow) { max-width: 590px; margin-bottom: 1.5rem; color: var(--ink-soft); font-size: 0.89rem; line-height: 1.85; }
.note-aside { position: relative; z-index: 1; align-self: end; padding: 0 0 0.6rem 1.4rem; border-left: 1px solid #a8b6a7; }
.aside-rule { display: block; width: 24px; height: 2px; margin-bottom: 1rem; background: var(--blue); }
.note-aside p { margin: 0; color: var(--muted); font: italic 0.95rem/1.7 var(--serif); }

.reader-prompt {
  width: min(1060px, calc(100% - 64px));
  margin: 0 auto;
  padding: 7.25rem 0;
  display: grid;
  grid-template-columns: 0.68fr 1.5fr 0.65fr;
  align-items: start;
  gap: 2rem;
}
.prompt-kicker { padding-top: 0.55rem; color: var(--blue); font: 700 0.64rem/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.prompt-main h2 { font-size: clamp(2.55rem, 4.2vw, 3.6rem); margin-bottom: 1rem; }
.prompt-main p { max-width: 480px; color: var(--muted); font-size: 0.87rem; line-height: 1.8; }
.prompt-link {
  justify-self: end;
  width: 154px;
  margin-top: 1rem;
  padding: 0.8rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--blue-dark);
  border-bottom: 1px solid #a8b6a7;
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
}
.prompt-link span:last-child { transition: transform 160ms ease; }
.prompt-link:hover span:last-child { transform: translate(3px, -3px); }

.site-footer { padding: 3.5rem max(32px, calc((100% - 1120px) / 2)) 1.4rem; background: #e9e8de; }
.footer-main {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 3rem;
  align-items: start;
  padding-bottom: 3rem;
}
.footer-summary { max-width: 285px; margin: 0; color: var(--muted); font: 0.9rem/1.7 var(--serif); }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: 0.4rem; }
.footer-links a { font-size: 0.72rem; }
.footer-bottom {
  padding-top: 1.3rem;
  border-top: 1px solid #cbd0c5;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  color: var(--muted);
  font-size: 0.64rem;
  line-height: 1.6;
}
.footer-bottom p { max-width: 720px; margin: 0; }
.footer-bottom > span { flex: 0 0 auto; }

.privacy-notice {
  position: fixed;
  z-index: 10;
  right: 1rem;
  bottom: 1rem;
  width: min(430px, calc(100% - 2rem));
  padding: 1rem 1rem 1rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid #bdc8bc;
  background: var(--paper-light);
  box-shadow: 0 12px 40px rgba(32, 54, 53, 0.12);
}
.privacy-notice p { flex: 1; margin: 0; color: var(--ink-soft); font-size: 0.72rem; line-height: 1.55; }
.privacy-notice strong { color: var(--ink); }
.notice-dismiss {
  flex: 0 0 auto;
  padding: 0.35rem 0;
  border: 0;
  border-bottom: 1px solid #9daea2;
  color: var(--blue-dark);
  background: transparent;
  font-size: 0.68rem;
  font-weight: 700;
  cursor: pointer;
}
.notice-dismiss span { margin-left: 0.35rem; font-size: 1rem; }

:focus-visible { outline: 3px solid #6f8c7f; outline-offset: 4px; }
@media (max-width: 980px) {
  .header-inner { width: min(100% - 48px, 1240px); min-height: 86px; gap: 1.5rem; }
  .site-nav { gap: 0.45rem 0.9rem; }
  .site-nav a { font-size: 0.69rem; }
  .intro-wrap { width: min(100% - 48px, 1240px); min-height: 520px; padding: 4.5rem 0; }
  .intro-copy { padding-left: 0; }
  .intro-art { transform: scale(0.9); }
  .principles { padding-right: 24px; padding-left: 24px; gap: 1rem; }
  .topics-section, .reader-prompt { width: calc(100% - 48px); }
}
@media (max-width: 760px) {
  .header-inner { width: calc(100% - 40px); min-height: 78px; position: relative; flex-wrap: wrap; gap: 0; }
  .wordmark-mark { width: 37px; height: 37px; font-size: 1.5rem; }
  .wordmark-text { font-size: 0.79rem; }
  .menu-toggle {
    display: none;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0;
    border: 0;
    color: var(--blue-dark);
    background: transparent;
    cursor: pointer;
    font-size: 0.73rem;
    font-weight: 700;
  }
  .menu-icon { width: 18px; display: grid; gap: 5px; }
  .menu-icon i { width: 18px; height: 1px; display: block; background: currentColor; transition: transform 160ms ease; }
  .menu-toggle[aria-expanded="true"] .menu-icon i:first-child { transform: translateY(3px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-icon i:last-child { transform: translateY(-3px) rotate(-45deg); }
  .site-nav { display: grid; width: 100%; padding: 0 0 1rem; grid-template-columns: 1fr 1fr; gap: 0; }
  .has-js .menu-toggle { display: inline-flex; }
  .has-js .site-nav:not(.is-open) { display: none; }
  .site-nav a { padding: 0.66rem 0.25rem; border-top: 1px solid var(--line); font-size: 0.76rem; }
  .intro-wrap { width: calc(100% - 40px); min-height: auto; padding: 4rem 0 3.4rem; grid-template-columns: 1fr; gap: 0.4rem; }
  .intro-copy { padding: 0; }
  .eyebrow { font-size: 0.59rem; letter-spacing: 0.12em; }
  h1 { font-size: clamp(3.45rem, 12vw, 5.1rem); }
  .intro-lede { max-width: 460px; font-size: 0.92rem; }
  .intro-art { width: min(100%, 430px); min-height: 345px; margin: 0 auto; transform: scale(0.88); transform-origin: center top; }
  .art-frame { height: 390px; }
  .art-caption { right: 2%; bottom: -4px; font-size: 0.8rem; }
  .principles { grid-template-columns: 1fr 1fr; padding: 1.6rem 20px; gap: 1.3rem 1rem; }
  .principles-note { justify-self: start; font-size: 0.83rem; }
  .topics-section { width: calc(100% - 40px); padding: 5.3rem 0; }
  .section-heading { grid-template-columns: 1fr; gap: 1.3rem; margin-bottom: 2.3rem; }
  h2 { font-size: clamp(2.8rem, 10vw, 3.8rem); }
  .section-intro { max-width: 490px; }
  .topic-row { min-height: 92px; grid-template-columns: 30px minmax(0, 1fr) 24px; gap: 0.55rem; padding: 0.85rem 0; }
  .topic-name { font-size: 1.12rem; }
  .topic-description { grid-column: 2; grid-row: 2; font-size: 0.7rem; }
  .topic-arrow { grid-column: 3; grid-row: 1 / span 2; }
  .editorial-note { padding: 5.6rem 20px 3.8rem; grid-template-columns: 1fr; gap: 2.6rem; }
  .note-mark { left: 13px; top: 15px; font-size: 7rem; }
  .editorial-copy { padding-top: 0.5rem; }
  .editorial-copy h2 { font-size: clamp(2.55rem, 9vw, 3.45rem); }
  .note-aside { max-width: 470px; }
  .reader-prompt { width: calc(100% - 40px); padding: 5rem 0; grid-template-columns: 1fr; gap: 0.8rem; }
  .prompt-main h2 { font-size: clamp(2.55rem, 9vw, 3.5rem); }
  .prompt-link { justify-self: start; margin-top: 0.1rem; }
  .site-footer { padding: 2.7rem 20px 1.2rem; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 2rem 1.4rem; padding-bottom: 2rem; }
  .footer-summary { grid-column: 1 / -1; grid-row: 2; max-width: 390px; }
  .footer-links { grid-column: 2; grid-row: 1; }
  .footer-bottom { flex-direction: column; gap: 0.7rem; }
}
@media (max-width: 390px) {
  .intro-wrap { padding-top: 3.1rem; }
  .intro-art { min-height: 310px; transform: scale(0.78); margin-bottom: -3.5rem; }
  .principle-item { gap: 0.6rem; }
  .topic-number { font-size: 0.58rem; }
  .topic-name { font-size: 1.03rem; }
  .privacy-notice { right: 0.6rem; bottom: 0.6rem; width: calc(100% - 1.2rem); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}