:root {
  --bg: #f3efe6;
  --bg-elevated: #faf7f0;
  --fg: #1c2418;
  --fg-muted: #4d5a48;
  --brand: #1f4d3a;
  --brand-deep: #143528;
  --accent: #8a5a2b;
  --accent-soft: #d9c4a0;
  --steel: #3d4a52;
  --line: #cfc6b4;
  --focus: #1f4d3a;
  --paper: #f7f3ea;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --max: 72rem;
  --prose: 40rem;
  --space: clamp(1.25rem, 3vw, 2rem);
  --field-pattern:
    radial-gradient(circle at 18% 12%, rgba(31, 77, 58, 0.07), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(138, 90, 43, 0.09), transparent 36%),
    linear-gradient(180deg, #f7f3ea 0%, #ebe4d6 100%);
  --grid-furrow:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 47px,
      rgba(31, 77, 58, 0.035) 47px,
      rgba(31, 77, 58, 0.035) 48px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 47px,
      rgba(61, 74, 82, 0.04) 47px,
      rgba(61, 74, 82, 0.04) 48px
    );
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--field-pattern);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--brand);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--brand-deep);
}

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--brand-deep);
  color: var(--paper);
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0.25rem;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
  color: var(--paper);
}

.wrap {
  width: min(100% - 2 * var(--space), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 0.9rem;
}

.wordmark {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 600;
  color: var(--brand-deep);
  text-decoration: none;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.wordmark:hover {
  color: var(--brand);
}

.wordmark span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-top: 0.15rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--brand);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(92vh, 52rem);
  display: flex;
  align-items: flex-end;
  color: var(--paper);
  overflow: hidden;
}

.hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(
      135deg,
      rgba(20, 53, 40, 0.94) 0%,
      rgba(61, 74, 82, 0.82) 48%,
      rgba(138, 90, 43, 0.62) 100%
    ),
    var(--grid-furrow),
    linear-gradient(180deg, #143528, #3d4a52);
  background-size: auto, 48px 48px, auto;
  animation: hero-shift 28s ease-in-out infinite alternate;
}

@keyframes hero-shift {
  from {
    background-position: 0 0, 0 0, 0 0;
  }
  to {
    background-position: 0 0, 24px 12px, 0 0;
  }
}

.hero__inner {
  width: min(100% - 2 * var(--space), var(--max));
  margin-inline: auto;
  padding-block: clamp(4rem, 12vh, 7rem) clamp(3rem, 8vh, 5rem);
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--paper) 78%, transparent);
  margin: 0 0 1.25rem;
  animation: rise 700ms ease both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.25rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  max-width: 14ch;
  animation: rise 800ms ease both 80ms;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 500;
  line-height: 1.25;
  margin: 0 0 0.85rem;
  max-width: 28ch;
  color: color-mix(in srgb, var(--paper) 94%, var(--accent-soft));
  animation: rise 800ms ease both 140ms;
}

.hero__lede {
  margin: 0 0 1.75rem;
  max-width: 38ch;
  font-size: 1.08rem;
  color: color-mix(in srgb, var(--paper) 88%, transparent);
  animation: rise 800ms ease both 200ms;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 800ms ease both 280ms;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 0.25rem;
  padding: 0.8rem 1.2rem;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--paper);
  color: var(--brand-deep);
}

.btn-primary:hover {
  background: #fff;
  color: var(--brand-deep);
}

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(247, 243, 234, 0.55);
}

.btn-ghost:hover {
  color: var(--paper);
  border-color: var(--paper);
  background: rgba(247, 243, 234, 0.08);
}

.btn-brand {
  background: var(--brand);
  color: var(--paper);
}

.btn-brand:hover {
  background: var(--brand-deep);
  color: var(--paper);
}

.btn-outline {
  background: transparent;
  color: var(--brand-deep);
  border-color: var(--brand);
}

.btn-outline:hover {
  background: color-mix(in srgb, var(--brand) 8%, transparent);
  color: var(--brand-deep);
}

.btn-sm {
  padding: 0.45rem 0.8rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.section {
  padding-block: clamp(3.5rem, 8vw, 5.5rem);
}

.section--tint {
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
  border-block: 1px solid var(--line);
}

.section__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.25rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--brand-deep);
  margin: 0 0 0.85rem;
  max-width: 22ch;
}

.section__intro {
  margin: 0 0 1.75rem;
  max-width: var(--prose);
  color: var(--fg-muted);
  font-size: 1.05rem;
}

.split {
  display: grid;
  gap: 1.5rem 3rem;
}

@media (min-width: 720px) {
  .split--two {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.stack {
  display: grid;
  gap: 0.85rem;
}

.stack p {
  margin: 0;
  max-width: var(--prose);
}

.options {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.option {
  padding: 0;
  border-left: 3px solid var(--line);
  padding-left: 1rem;
}

.option strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--brand-deep);
  margin-bottom: 0.25rem;
}

.option p {
  margin: 0;
  color: var(--fg-muted);
}

.third-path {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  max-width: 48rem;
}

.third-path p {
  margin: 0;
  font-size: 1.08rem;
}

.pillars {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.pillars li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--steel);
  border-bottom: 1px solid var(--accent-soft);
  padding-bottom: 0.15rem;
}

.notice {
  margin: 0 0 1.5rem;
  max-width: 48rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--fg-muted);
  font-size: 0.98rem;
}

.principles {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
  display: grid;
  gap: 1rem;
}

.principles li {
  counter-increment: principle;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem 1rem;
  align-items: start;
  padding-block: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.principles li::before {
  content: counter(principle, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding-top: 0.2rem;
}

.principles p {
  margin: 0;
  max-width: 52rem;
}

.doc-list {
  display: grid;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.doc {
  padding: 0;
  max-width: 44rem;
}

.doc__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--brand-deep);
  margin: 0 0 0.35rem;
  line-height: 1.3;
}

.doc__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 0.75rem;
}

.doc__desc {
  margin: 0 0 1rem;
  color: var(--fg-muted);
}

.doc__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.doc__hint {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin: 0.65rem 0 0;
}

.status-list,
.reuse-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
  max-width: 48rem;
}

.status-list li,
.reuse-list li {
  padding-left: 1rem;
  border-left: 2px solid var(--accent-soft);
  color: var(--fg);
}

.attribution {
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  max-width: 40rem;
}

.attribution p {
  margin: 0;
}

.attribution code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--brand-deep);
}

.license-link {
  margin-top: 1rem;
  display: inline-block;
  font-weight: 600;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem 3rem;
  background: color-mix(in srgb, var(--brand-deep) 4%, var(--bg));
}

.site-footer__inner {
  display: grid;
  gap: 0.35rem;
}

.site-footer strong {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--brand-deep);
}

.site-footer p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

.site-footer .mono {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 0.75rem;
}

@media (max-width: 560px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 0.5rem 1rem;
  }
}