.guide-page {
  min-height: 100vh;
  overflow-x: clip;
  background:
    linear-gradient(rgba(56, 60, 51, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 60, 51, 0.035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
}

.guide-bar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  height: 78px;
  align-items: center;
  justify-content: space-between;
  padding: 0 38px;
  border-bottom: 1px solid var(--line);
  background: rgba(242, 238, 229, 0.93);
  backdrop-filter: blur(18px);
}

.guide-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.guide-back span:first-child {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 400;
  transition: transform 180ms ease;
}

.guide-back:hover span:first-child {
  transform: translateX(-3px);
}

.guide-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  max-width: 1440px;
  min-height: calc(100vh - 78px);
  margin: 0 auto;
}

.guide-index {
  align-self: stretch;
  padding: 52px 28px 42px 38px;
  border-right: 1px solid var(--line);
}

.guide-index-label,
.guide-evidence-label,
.guide-example-label {
  margin: 0 0 17px;
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

#guide-nav {
  display: flex;
  flex-direction: column;
}

.guide-nav-link {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 11px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid rgba(32, 37, 33, 0.1);
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  transition:
    color 180ms ease,
    padding 180ms ease;
}

.guide-nav-link span:first-child {
  color: rgba(32, 37, 33, 0.42);
  font-family: var(--sans);
  font-size: 9px;
}

.guide-nav-link:hover,
.guide-nav-link[aria-current="page"] {
  padding-left: 5px;
  color: var(--ink);
}

.guide-nav-link[aria-current="page"] {
  border-bottom-color: var(--accent);
}

.guide-index-note {
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.55;
}

.guide-content {
  min-width: 0;
  padding: 64px clamp(40px, 7vw, 110px) 90px;
}

.guide-hero {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 30px;
  align-items: start;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.guide-mark {
  display: grid;
  width: 82px;
  height: 82px;
  place-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 42px;
}

.guide-kicker {
  margin: 2px 0 11px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.guide-hero h1 {
  max-width: 760px;
  font-size: clamp(52px, 6vw, 86px);
  hyphens: auto;
  line-height: 0.9;
  overflow-wrap: anywhere;
}

.guide-lead {
  max-width: 740px;
  margin: 26px 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
}

.guide-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 34px 0 38px;
  border-bottom: 1px solid var(--line);
}

.guide-facts div {
  padding: 10px 24px 16px 0;
}

.guide-facts dt {
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.guide-facts dd {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.45;
}

.guide-section {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 22px;
  padding: 55px 0 20px;
}

.guide-section-number {
  margin: 6px 0 0;
  color: var(--accent);
  font-family: var(--serif);
  font-size: 17px;
}

.guide-section h2,
.guide-example h2,
.guide-evidence h2 {
  margin: 0 0 25px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 38px;
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

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

.guide-list li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-top: 1px solid rgba(32, 37, 33, 0.11);
  font-size: 14px;
  line-height: 1.55;
}

.guide-list li::before {
  position: absolute;
  top: 18px;
  left: 2px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sage);
  content: "";
}

.guide-steps {
  margin: 0;
  padding: 0;
  counter-reset: detailed-step;
  list-style: none;
}

.guide-steps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid rgba(32, 37, 33, 0.13);
  counter-increment: detailed-step;
}

.guide-steps li::before {
  color: var(--accent);
  font-family: var(--serif);
  font-size: 20px;
  content: counter(detailed-step, decimal-leading-zero);
}

.guide-step-title {
  display: block;
  margin-bottom: 7px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 400;
}

.guide-step-body {
  display: block;
  max-width: 760px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.guide-example {
  margin: 46px 0 18px 80px;
  padding: 34px 40px 38px;
  color: var(--panel-ink);
  background: var(--panel);
}

.guide-example-label {
  color: var(--acid);
}

.guide-example h2 {
  color: var(--panel-ink);
}

.guide-example p:last-child {
  max-width: 780px;
  margin: 0;
  color: var(--panel-soft);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.65;
}

.guide-checklist li::before {
  border: 1px solid var(--sage);
  background: transparent;
}

.guide-pitfalls li::before {
  border-radius: 0;
  background: var(--accent);
  transform: rotate(45deg);
}

.guide-evidence {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 54px;
  margin-top: 52px;
  padding: 42px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.guide-evidence > div > p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.guide-source-link {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 0;
  border-top: 1px solid rgba(32, 37, 33, 0.12);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.35;
  text-decoration: none;
}

.guide-source-link:hover {
  color: var(--accent);
}

.guide-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding-top: 34px;
}

.guide-next a {
  display: flex;
  min-height: 82px;
  flex-direction: column;
  justify-content: center;
  padding: 15px 18px;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.15;
  text-decoration: none;
  transition:
    border-color 180ms ease,
    transform 180ms ease;
}

.guide-next a:last-child {
  text-align: right;
}

.guide-next a:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.guide-next small {
  margin-bottom: 6px;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .guide-shell {
    display: block;
  }

  .guide-index {
    max-width: 100vw;
    padding: 25px 24px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .guide-index-label,
  .guide-index-note {
    display: none;
  }

  #guide-nav {
    width: max-content;
    flex-direction: row;
    gap: 8px;
  }

  .guide-nav-link {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    gap: 7px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--sans);
    font-size: 10px;
  }

  .guide-nav-link:hover,
  .guide-nav-link[aria-current="page"] {
    padding-left: 12px;
    border-color: var(--ink);
  }

  .guide-content {
    padding: 48px 26px 70px;
  }
}

@media (max-width: 620px) {
  .guide-bar {
    height: 66px;
    padding: 0 20px;
  }

  .guide-back span:last-child {
    display: none;
  }

  .guide-index {
    padding-right: 20px;
    padding-left: 20px;
  }

  .guide-content {
    padding: 38px 20px 60px;
  }

  .guide-hero {
    display: block;
    padding-bottom: 34px;
  }

  .guide-mark {
    width: 58px;
    height: 58px;
    margin-bottom: 28px;
    font-size: 29px;
  }

  .guide-hero h1 {
    font-size: clamp(40px, 11.5vw, 54px);
  }

  .guide-lead {
    margin-top: 20px;
    font-size: 16px;
  }

  .guide-facts {
    grid-template-columns: 1fr 1fr;
    padding: 22px 0;
  }

  .guide-facts div {
    padding-right: 16px;
  }

  .guide-section {
    display: block;
    padding-top: 42px;
  }

  .guide-section-number {
    margin-bottom: 11px;
  }

  .guide-section h2,
  .guide-example h2,
  .guide-evidence h2 {
    font-size: 32px;
  }

  .guide-steps li {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
  }

  .guide-example {
    margin: 34px -20px 4px;
    padding: 31px 20px 35px;
  }

  .guide-evidence {
    display: block;
  }

  .guide-sources {
    margin-top: 38px;
  }

  .guide-next {
    grid-template-columns: 1fr;
  }

  .guide-next a:last-child {
    text-align: left;
  }
}