:root {
  --forest: #081411;
  --forest-soft: #10221c;
  --line: #29463d;
  --mint: #d8ff91;
  --text: #ecf7f2;
  --muted: #97ada4;
  --paper: #f0eee7;
  --ink: #17201c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--forest);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  overflow-wrap: anywhere;
}

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

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

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h1 {
  max-width: 760px;
  margin-bottom: 2rem;
  font-size: clamp(4rem, 9vw, 8.5rem);
}

h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 6vw, 6rem);
}

h3 {
  line-height: 1.25;
}

.shell {
  width: min(1180px, calc(100% - 3rem));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  background: var(--mint);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: relative;
  z-index: 5;
  border-bottom: 1px solid var(--line);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: 2rem;
}

.wordmark {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark span {
  color: var(--mint);
}

nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
}

nav a {
  color: var(--muted);
  font-size: 0.86rem;
  text-decoration: none;
  transition: color 160ms ease;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0.85rem 1.3rem;
  border: 1px solid var(--mint);
  background: var(--mint);
  color: var(--ink);
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease;
}

.button:hover {
  background: transparent;
  color: var(--mint);
}

.button-small {
  min-height: 42px;
  padding: 0.55rem 1rem;
  font-size: 0.86rem;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 760px;
  padding: clamp(6rem, 11vw, 10rem) 0 6rem;
  overflow: hidden;
}

.hero::after {
  position: absolute;
  z-index: -1;
  top: 50%;
  right: -16rem;
  width: min(62vw, 850px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: repeating-radial-gradient(circle, transparent 0 13%, var(--line) 13.2% 13.4%);
  content: "";
  opacity: 0.7;
  transform: translateY(-50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(230px, 1fr);
  align-items: end;
  gap: 4rem;
}

.eyebrow,
.section-number {
  margin-bottom: 2rem;
  color: var(--mint);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-intro {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
}

.hero-actions p {
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.hero-actions strong {
  color: var(--text);
  letter-spacing: 0.12em;
}

.hero-note {
  position: relative;
  display: grid;
  gap: 1rem;
  padding: 2rem;
  border: 1px solid var(--line);
  background: rgb(8 20 17 / 80%);
}

.hero-note span,
.hero-note small {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.hero-note strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1.15;
}

.offer,
.sample,
.standards,
.contact {
  padding: clamp(5rem, 10vw, 9rem) 0;
}

.offer {
  background: var(--paper);
  color: var(--ink);
}

.offer .section-number,
.offer .audience-list span {
  color: #426154;
}

.offer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: clamp(3rem, 9vw, 9rem);
}

.lead {
  max-width: 670px;
  font-size: 1.15rem;
}

.audience-list article {
  display: grid;
  grid-template-columns: 2rem 1fr;
  column-gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid #bdc5be;
}

.audience-list span {
  grid-row: span 2;
  font-size: 0.75rem;
  font-weight: 800;
}

.audience-list h3,
.audience-list p {
  margin-bottom: 0.4rem;
}

.audience-list p,
.offer-principle {
  color: #4f5f57;
}

.offer-principle {
  max-width: 800px;
  margin: 4rem 0 0;
  padding: 1.5rem 0 0 3rem;
  border-top: 1px solid #bdc5be;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
}

.sample {
  background: var(--forest-soft);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 2.5fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

.section-heading h2 {
  max-width: 800px;
}

.sample-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.sample-grid article {
  min-height: 310px;
  padding: 2rem 1.5rem;
  border-right: 1px solid var(--line);
}

.sample-grid article:first-child {
  border-left: 1px solid var(--line);
}

.item-number {
  display: block;
  margin-bottom: 4rem;
  color: var(--mint);
  font-size: 0.75rem;
  font-weight: 800;
}

.sample-grid h3 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.4rem;
  font-weight: 400;
}

.sample-grid p,
.validation-note p {
  color: var(--muted);
}

.validation-note {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2rem;
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
}

.validation-note strong {
  color: var(--mint);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}

.validation-note p {
  margin: 0;
}

.standards {
  background: var(--mint);
  color: var(--ink);
}

.standards .section-number {
  color: #476028;
}

.standards-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: clamp(3rem, 9vw, 9rem);
}

.standards-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.standards-list li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  padding: 1.6rem 0;
  border-top: 1px solid #91ae5b;
}

.standards-list span {
  font-size: 0.75rem;
  font-weight: 800;
}

.standards-list h3 {
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

.standards-list p {
  margin: 0;
  color: #3c4c35;
}

.contact {
  border-bottom: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.5fr);
  align-items: end;
  gap: clamp(3rem, 9vw, 9rem);
}

.contact-action p {
  color: var(--muted);
}

.contact-action .button {
  width: 100%;
}

footer {
  color: var(--muted);
  font-size: 0.8rem;
}

footer .wordmark {
  color: var(--text);
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 2rem, 1180px);
  }

  .header-inner {
    min-height: 72px;
    gap: 1rem;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 5rem;
  }

  .hero::after {
    top: auto;
    right: -10rem;
    bottom: -14rem;
    width: 30rem;
    transform: none;
    opacity: 0.45;
  }

  .hero-grid,
  .offer-grid,
  .section-heading,
  .standards-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-note {
    max-width: 320px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .offer-principle {
    padding-left: 0;
  }

  .sample-grid {
    grid-template-columns: 1fr;
  }

  .sample-grid article,
  .sample-grid article:first-child {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-left: 0;
  }

  .item-number {
    margin-bottom: 2rem;
  }

  .validation-note {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 2rem 0;
    gap: 0.75rem;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: clamp(3.25rem, 16vw, 4rem);
  }

  .button-small {
    padding-inline: 0.75rem;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}