:root {
  color-scheme: light;
  --color-background: #f7f8f4;
  --color-surface: #ffffff;
  --color-surface-warm: #f1eee5;
  --color-surface-green: #e8eee4;
  --color-text: #1f2933;
  --color-text-soft: #56616b;
  --color-green: #44543f;
  --color-green-soft: #62715f;
  --color-border: #d9ded5;
  --color-focus: #245c38;
  --shadow-soft: 0 20px 50px rgba(42, 55, 43, 0.08);
  --radius-small: 0.75rem;
  --radius-medium: 1.25rem;
  --radius-large: 2rem;
  --content-width: 70rem;
  --text-width: 46rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-green);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

a:focus-visible,
[tabindex]:focus-visible {
  border-radius: 0.2rem;
  outline: 0.2rem solid var(--color-focus);
  outline-offset: 0.25rem;
}

img {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3 {
  line-height: 1.12;
}

h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 3.25rem);
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.2rem;
}

.container {
  width: min(var(--content-width), calc(100% - 2.5rem));
  margin-inline: auto;
}

.narrow {
  width: min(var(--text-width), 100%);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-small);
  background: var(--color-text);
  color: #ffffff;
  font-weight: 700;
  transform: translateY(-160%);
}

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

.site-header {
  padding: 1.4rem 0;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  flex: 0 0 auto;
  color: var(--color-text);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-soft);
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--color-text);
  text-decoration: underline;
}

.hero {
  padding: clamp(4rem, 10vw, 7.5rem) 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1.1rem;
  color: var(--color-green-soft);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero-lead {
  max-width: 40rem;
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2rem;
  padding: 0.7rem 1rem;
  border: 1px solid #ced8c9;
  border-radius: 999px;
  background: var(--color-surface-green);
  color: var(--color-green);
  font-size: 0.92rem;
  font-weight: 750;
}

.status::before {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-green-soft);
  content: "";
}

.character-stage {
  display: grid;
  min-height: 25rem;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 45% 45% var(--radius-large) var(--radius-large);
  background: linear-gradient(160deg, var(--color-surface-green), var(--color-surface-warm));
  box-shadow: var(--shadow-soft);
}

.character-stage__label {
  color: var(--color-green);
  font-weight: 800;
}

.section {
  padding: clamp(4rem, 8vw, 6.5rem) 0;
}

.section--surface {
  border-block: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.58);
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 2.5rem;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 1.1rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-card {
  min-height: 11rem;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
}

.feature-card::before {
  display: block;
  width: 2rem;
  height: 0.35rem;
  margin-bottom: 1.5rem;
  border-radius: 999px;
  background: #9aaa92;
  content: "";
}

.feature-card p {
  margin-bottom: 0;
  color: var(--color-text-soft);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(2rem, 7vw, 6rem);
}

.warm-panel,
.notice {
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-large);
}

.warm-panel {
  border: 1px solid #ded8c9;
  background: var(--color-surface-warm);
}

.warm-panel p:last-child,
.notice p:last-child {
  margin-bottom: 0;
}

.notice {
  border: 1px solid #cfd9ca;
  background: var(--color-surface-green);
}

.notice--important {
  border-left: 0.35rem solid var(--color-green);
  border-radius: var(--radius-small);
}

.page-hero {
  padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem);
}

.page-hero h1 {
  max-width: 50rem;
  font-size: clamp(2.8rem, 7vw, 5rem);
}

.page-hero p {
  max-width: 42rem;
  margin-bottom: 0;
  color: var(--color-text-soft);
  font-size: 1.15rem;
}

.page-hero .document-meta {
  margin-top: 1rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.document {
  padding: 0 0 clamp(5rem, 10vw, 8rem);
}

.document-layout {
  display: grid;
  grid-template-columns: minmax(11rem, 0.35fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(2rem, 8vw, 7rem);
}

.document-nav {
  position: sticky;
  top: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: rgba(255, 255, 255, 0.7);
}

.document-nav strong {
  display: block;
  margin-bottom: 0.6rem;
}

.document-nav ul {
  margin: 0;
  padding-left: 1.15rem;
}

.document-nav li + li {
  margin-top: 0.35rem;
}

.document-content {
  max-width: var(--text-width);
}

.document-content section {
  scroll-margin-top: 2rem;
}

.document-content section + section {
  margin-top: 3.25rem;
  padding-top: 3.25rem;
  border-top: 1px solid var(--color-border);
}

.document-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}

.document-content p,
.document-content li {
  color: var(--color-text-soft);
}

.document-content strong {
  color: var(--color-text);
}

.document-content address {
  padding: 1.25rem;
  border-left: 0.3rem solid var(--color-green-soft);
  background: var(--color-surface-green);
  color: var(--color-text-soft);
  font-style: normal;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.help-card {
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
}

.help-card p {
  margin-bottom: 0;
  color: var(--color-text-soft);
}

.site-footer {
  padding: 2.25rem 0 2.75rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-soft);
  font-size: 0.92rem;
}

.footer-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand {
  color: var(--color-text);
  font-weight: 800;
}

.footer-meta p {
  margin: 0.2rem 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.7rem 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 52rem) {
  .hero-grid,
  .split,
  .document-layout {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 3rem;
  }

  .character-stage {
    min-height: 19rem;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .document-nav {
    position: static;
  }
}

@media (max-width: 40rem) {
  .container {
    width: min(var(--content-width), calc(100% - 1.5rem));
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.8rem;
  }

  .nav-links {
    width: 100%;
    gap: 0.5rem 1rem;
    flex-wrap: wrap;
  }

  .feature-grid,
  .help-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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