:root {
  color-scheme: light;
  --paper: #f3f0e9;
  --paper-deep: #e8e3d9;
  --ink: #17211f;
  --ink-soft: #4b5854;
  --line: #c9c4b9;
  --green: #135f55;
  --green-dark: #0c4039;
  --notice: #f0dfd5;
  --notice-line: #9b6255;
  --page-pad: clamp(1.25rem, 5vw, 4.5rem);
  --content: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--green-dark);
  text-underline-offset: 0.22em;
  text-decoration-thickness: 0.09em;
}

a:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.75rem 1rem;
  transform: translateY(-180%);
  background: var(--ink);
  color: #fff;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.safety-notice {
  padding: 0.85rem var(--page-pad);
  border-bottom: 1px solid var(--notice-line);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 5vw, 5rem);
  background: var(--notice);
  color: #392522;
}

.safety-notice div {
  width: min(100%, 48rem);
}

.safety-notice strong,
.safety-notice p {
  font-size: 0.9rem;
}

.safety-notice p {
  margin: 0.1rem 0 0;
}

.safety-notice a {
  min-width: 9rem;
  min-height: 2.75rem;
  padding: 0.55rem 1rem;
  border: 1px solid #392522;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  color: #392522;
  font-weight: 700;
  text-decoration: none;
}

.safety-notice a:hover {
  background: #392522;
  color: #fff;
}

.site-header,
main,
footer {
  width: min(100%, var(--content));
  margin-inline: auto;
}

.site-header {
  padding: 2rem var(--page-pad);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
}

.brand-lockup {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.wordmark {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.site-header p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.5vw, 1.8rem);
}

nav a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover {
  color: var(--green-dark);
  text-decoration: underline;
}

.hero {
  padding: clamp(2.75rem, 5vw, 4.5rem) var(--page-pad);
}

.status,
.section-label {
  margin: 0 0 1.5rem;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

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

h1 {
  max-width: 17ch;
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 1.02;
}

.introduction {
  max-width: 43rem;
  margin: 2.25rem 0 0;
  color: #31403c;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.plain-note {
  max-width: 43rem;
  margin: 2rem 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--green);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.purpose,
.status-section,
.support {
  padding: clamp(4rem, 9vw, 7rem) var(--page-pad);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(3rem, 8vw, 8rem);
}

h2 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2.25rem, 4vw, 3.7rem);
  line-height: 1.08;
}

.purpose-copy p,
.status-section div:last-child p,
.support div:last-child p {
  margin-top: 0;
  color: var(--ink-soft);
}

.purpose-copy p + p,
.status-section div:last-child p + p {
  margin-top: 1.4rem;
}

.principles {
  padding: clamp(4rem, 9vw, 7rem) var(--page-pad);
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
}

.principles > h2 {
  margin-bottom: 1.25rem;
}

.principles-intro {
  max-width: 42rem;
  margin: 0 0 2.5rem;
  color: var(--ink-soft);
}

.carousel-controls {
  margin-bottom: 0.85rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}

.carousel-shell {
  position: relative;
  isolation: isolate;
  padding: 1rem;
  border: 1px solid #aaa397;
  background: #d9d3c8;
  box-shadow:
    0 1px 0 rgb(255 255 255 / 72%) inset,
    0 1.5rem 3rem rgb(46 55 51 / 10%);
}

.carousel-shell::after {
  position: absolute;
  z-index: -1;
  right: 0.65rem;
  bottom: -0.55rem;
  left: 0.65rem;
  height: 0.55rem;
  border: 1px solid #aaa397;
  border-top: 0;
  background: #c9c2b6;
  content: "";
  transform: perspective(24rem) rotateX(-38deg);
  transform-origin: top;
}

.carousel-controls p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.narrow-screen-instruction {
  display: none;
}

.carousel-controls nav {
  width: auto;
  gap: 0.4rem;
}

.carousel-controls nav a {
  min-width: 5.5rem;
  min-height: 2.75rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid #aaa397;
  gap: 0.45rem;
  justify-content: center;
  background: rgb(255 255 255 / 28%);
  color: var(--green-dark);
  font-size: 0.74rem;
  text-decoration: none;
}

.carousel-controls nav a span {
  color: var(--ink-soft);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
}

.carousel-controls nav a:hover,
.carousel-controls nav a:focus-visible {
  border-color: var(--green);
  background: var(--green-dark);
  color: #fff;
  text-decoration: none;
}

.carousel-controls nav a:hover span,
.carousel-controls nav a:focus-visible span {
  color: #fff;
}

.principle-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
  gap: 1px;
  border: 1px solid #aaa397;
  overflow: visible;
  background: #aaa397;
}

.principle-cards:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: -3px;
}

.principle-card {
  position: relative;
  isolation: isolate;
  min-width: 0;
  min-height: 18rem;
  border: 0;
  border-top: 3px solid var(--green);
  background:
    linear-gradient(155deg, rgb(255 255 255 / 68%), rgb(255 255 255 / 6%)),
    var(--paper);
  box-shadow:
    0 1px 0 rgb(255 255 255 / 80%) inset,
    0 1px 0 rgb(255 255 255 / 75%) inset;
  transform: translateZ(0);
  transform-style: preserve-3d;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  scroll-margin-inline: 1rem;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.principle-card:hover,
.principle-card:focus-within {
  border-color: var(--green);
  box-shadow:
    0 1px 0 rgb(255 255 255 / 90%) inset,
    0 0 0 1px var(--green) inset,
    0 0.85rem 1.8rem rgb(35 70 63 / 10%);
  transform: translateY(-0.18rem);
}

.principle-card[open] {
  border-color: var(--green);
  background: #f8f6f0;
}

.principle-card:target {
  border-color: var(--green);
  box-shadow:
    0 1px 0 rgb(255 255 255 / 90%) inset,
    0 1.6rem 3rem rgb(35 70 63 / 14%);
}

.principle-card summary {
  min-height: 18rem;
  padding: clamp(1rem, 1.8vw, 1.4rem);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto 1fr auto;
  column-gap: 1rem;
  row-gap: 0.75rem;
  cursor: pointer;
  list-style: none;
}

.principle-card summary::-webkit-details-marker {
  display: none;
}

.principle-card summary:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: -4px;
}

.card-number {
  color: var(--green-dark);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.card-title {
  grid-column: 1 / -1;
  align-self: start;
  margin-top: 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.65rem, 2.4vw, 2.25rem);
  line-height: 1.05;
}

.card-preview {
  grid-column: 1 / -1;
  align-self: end;
  max-width: 28ch;
  color: var(--ink-soft);
  font-size: 0.85rem;
  line-height: 1.5;
}

.card-action {
  grid-column: 1 / -1;
  width: fit-content;
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--green);
  display: inline-flex;
  align-items: center;
  color: var(--green-dark);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.card-action-close {
  display: none;
}

.principle-card[open] .card-action-open {
  display: none;
}

.principle-card[open] .card-action-close {
  display: inline;
}

.card-body {
  padding: 0 clamp(1rem, 1.8vw, 1.4rem) clamp(1rem, 1.8vw, 1.4rem);
  border-top: 1px solid var(--line);
}

.card-body p {
  margin: 1rem 0 0;
  color: var(--ink-soft);
}

.status-section {
  background: var(--green-dark);
  color: #f6f2ea;
}

.status-section .section-label {
  color: #b9ddd5;
}

.status-section div:last-child p {
  color: #d8e2de;
}

.support a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  font-weight: 700;
}

footer {
  padding: 3rem var(--page-pad) 4rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

footer p {
  margin: 0;
}

footer address {
  max-width: 34rem;
  margin: 0;
  font-style: normal;
}

footer address,
footer p:last-child {
  text-align: right;
}

@media (max-width: 700px) {
  .safety-notice {
    align-items: stretch;
    flex-direction: column;
    gap: 0.75rem;
  }

  .safety-notice a {
    width: 100%;
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  nav {
    width: 100%;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
  }

  .carousel-controls {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
  }

  .carousel-controls nav {
    width: 100%;
    margin: 0;
    padding: 0;
    border: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .carousel-controls nav a {
    width: 100%;
  }

  .carousel-controls p {
    max-width: 30ch;
  }

  .hero {
    padding-block: 2.75rem;
  }

  .purpose,
  .status-section,
  .support {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  footer {
    flex-direction: column;
  }

  footer address,
  footer p:last-child {
    text-align: left;
  }
}

@media (max-width: 900px) {
  .carousel-shell {
    padding: 0.75rem;
  }

  .carousel-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  .wide-screen-instruction {
    display: none;
  }

  .narrow-screen-instruction {
    display: inline;
  }

  .principle-cards {
    margin-inline: -0.75rem;
    padding: 0 0.75rem 0.4rem;
    display: grid;
    grid-template-columns: none;
    grid-auto-columns: clamp(16rem, 68vw, 18rem);
    grid-auto-flow: column;
    gap: 0.65rem;
    border: 0;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    background: transparent;
    scroll-behavior: smooth;
    scroll-padding-inline: 0.75rem;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .principle-cards::-webkit-scrollbar {
    display: none;
  }

  .principle-card {
    width: auto;
    max-width: none;
    border: 1px solid #aaa397;
    border-top: 3px solid var(--green);
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .principle-card {
    transition: none;
  }

  .principle-cards {
    scroll-behavior: auto;
  }

  .card-action {
    transition: none;
  }

  .principle-card:hover,
  .principle-card:focus-within {
    transform: none;
  }
}