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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--t-0);
  color: var(--t-9);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.13em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--t-9);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10000;
  padding: 0.7rem 1rem;
  border-radius: 0.5rem;
  background: var(--t-9);
  color: var(--t-0);
  font-weight: 700;
  transform: translateY(-180%);
}

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

.site-header {
  border-bottom: 1px solid var(--t-3);
  background: rgba(var(--t-0-rgb), 0.9);
}

.nav,
.shell {
  width: min(100% - 2rem, 72rem);
  margin-inline: auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.25rem;
}

.brand {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 750;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.6rem 1.25rem;
  color: var(--t-7);
  font-size: 0.92rem;
}

.nav-links a[aria-current="page"] {
  color: var(--t-9);
  font-weight: 700;
}

.breadcrumb {
  padding-top: 1.5rem;
  color: var(--t-6);
  font-size: 0.85rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  margin-left: 0.4rem;
  content: "/";
  color: var(--t-5);
}

.hero {
  padding: clamp(3.75rem, 8vw, 7.5rem) 0 clamp(3rem, 6vw, 5.5rem);
}

.eyebrow,
.rank,
.section-label,
.card-kicker {
  margin: 0 0 0.9rem;
  color: var(--t-6);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 13ch;
  margin-bottom: 1.5rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.7rem, 7vw, 5.5rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.hero-copy {
  max-width: 49rem;
  margin-bottom: 0;
  color: var(--t-7);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.content-section {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  border-top: 1px solid var(--t-3);
}

.section-heading {
  max-width: 19ch;
  margin-bottom: 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 600;
  line-height: 1.08;
}

.section-intro {
  max-width: 46rem;
  color: var(--t-7);
}

.question-list,
.limits-list {
  max-width: 50rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: item;
}

.question-list li,
.limits-list li {
  position: relative;
  padding: 1.15rem 1.2rem 1.15rem 3.6rem;
  border-top: 1px solid var(--t-3);
  counter-increment: item;
}

.question-list li::before {
  position: absolute;
  top: 1.15rem;
  left: 0.6rem;
  content: "0" counter(item);
  color: var(--t-6);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
}

.limits-list li {
  padding-left: 2.2rem;
  color: var(--t-7);
}

.limits-list li::before {
  position: absolute;
  top: 1.12rem;
  left: 0.6rem;
  content: "—";
  color: var(--t-6);
}

.method-grid,
.funnel-grid,
.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.step-card,
.funnel-card,
.article-card {
  min-width: 0;
  padding: 1.45rem;
  border: 1px solid var(--t-3);
  border-radius: 0.8rem;
  background: var(--t-1);
}

.step-card h3,
.funnel-card h2,
.article-card h3 {
  margin-bottom: 0.7rem;
  font-size: 1.18rem;
  line-height: 1.3;
}

.step-card p,
.funnel-card p,
.article-card p {
  margin-bottom: 0;
  color: var(--t-7);
  font-size: 0.95rem;
}

.funnel-card,
.article-card {
  display: flex;
  flex-direction: column;
}

.funnel-card a,
.article-card a {
  margin-top: auto;
  padding-top: 1.1rem;
  font-weight: 700;
}

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

.cta-box {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(12rem, 0.4fr);
  align-items: center;
  gap: 2rem;
  padding: clamp(1.7rem, 5vw, 3.5rem);
  border: 1px solid var(--t-3);
  border-radius: 1rem;
  background: var(--t-1);
}

.cta-box h2 {
  margin-bottom: 0.75rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
  line-height: 1.1;
}

.cta-box p {
  max-width: 45rem;
  margin-bottom: 0;
  color: var(--t-7);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--t-9);
  border-radius: 0.55rem;
  background: var(--t-9);
  color: var(--t-0);
  font-weight: 750;
  text-align: center;
  text-decoration: none;
}

.adjacent-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.adjacent-link {
  padding: 1.2rem;
  border: 1px solid var(--t-3);
  border-radius: 0.7rem;
  background: var(--t-1);
  text-decoration: none;
}

.adjacent-link:last-child {
  text-align: right;
}

.adjacent-link span {
  display: block;
  color: var(--t-6);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer {
  padding: 2.5rem 0 5rem;
  border-top: 1px solid var(--t-3);
  color: var(--t-6);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

@media (max-width: 52rem) {
  .method-grid,
  .funnel-grid {
    grid-template-columns: 1fr;
  }

  .article-grid,
  .cta-box {
    grid-template-columns: 1fr;
  }

  .cta-box .button {
    justify-self: start;
  }
}

@media (max-width: 38rem) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 1rem;
  }

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

  .adjacent-nav {
    grid-template-columns: 1fr;
  }

  .adjacent-link:last-child {
    text-align: left;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}