.interior-main {
  background: var(--paper);
  overflow: hidden;
}

.breadcrumb {
  position: relative;
  z-index: 2;
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: 22px var(--gutter) 0;
  color: #8fa6bd;
  font: 750 10px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--cyan-400);
}

.breadcrumb a {
  color: #c4d6e8;
}

.breadcrumb [aria-current="page"] {
  color: var(--white);
}

.interior-hero {
  position: relative;
  min-height: 570px;
  background: var(--navy-950);
  color: var(--white);
  isolation: isolate;
}

.interior-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 214, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 214, 255, .055) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, #000 0 70%, transparent 100%);
}

.interior-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  right: -16vw;
  width: 54vw;
  height: 100%;
  background: linear-gradient(135deg, transparent 22%, rgba(8, 114, 249, .15) 22% 22.2%, transparent 22.2% 48%, rgba(53, 214, 255, .08) 48% 48.2%, transparent 48.2%);
}

.interior-hero-inner {
  width: min(var(--max), 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 390px);
  align-items: center;
  gap: clamp(56px, 9vw, 130px);
  margin: 0 auto;
  padding: clamp(58px, 7vw, 92px) var(--gutter) clamp(64px, 8vw, 104px);
}

.interior-hero-copy {
  max-width: 790px;
}

.interior-hero .technical-label {
  color: var(--cyan-200);
}

.interior-hero h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--white);
  font-size: clamp(46px, 5.4vw, 76px);
  font-weight: 800;
  letter-spacing: -.062em;
  line-height: .95;
}

.interior-hero h1 em {
  color: var(--cyan-400);
  font-style: normal;
  font-weight: 560;
}

.interior-lede {
  max-width: 700px;
  margin: 28px 0 0;
  color: #b8ccdf;
  font-size: clamp(18px, 1.45vw, 21px);
  line-height: 1.52;
}

.interior-lede strong {
  color: var(--white);
}

.interior-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-schematic {
  position: relative;
  min-height: 350px;
  display: grid;
  align-content: center;
  padding: 32px;
  border: 1px solid rgba(164, 236, 255, .32);
  box-shadow: 12px 12px 0 rgba(53, 214, 255, .11);
}

.hero-schematic::before,
.hero-schematic::after {
  content: "";
  position: absolute;
  background: rgba(53, 214, 255, .3);
}

.hero-schematic::before {
  top: 50%;
  right: -22px;
  left: -22px;
  height: 1px;
}

.hero-schematic::after {
  top: -22px;
  bottom: -22px;
  left: 50%;
  width: 1px;
}

.schematic-frame {
  position: relative;
  z-index: 1;
  min-height: 278px;
  display: grid;
  align-content: space-between;
  padding: 26px;
  background: rgba(3, 15, 36, .9);
  border: 1px solid rgba(164, 236, 255, .2);
}

.schematic-code {
  margin: 0;
  color: var(--cyan-400);
  font: 800 10px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.schematic-value {
  display: block;
  margin: 38px 0 6px;
  color: var(--white);
  font-size: clamp(54px, 5vw, 76px);
  font-weight: 800;
  letter-spacing: -.065em;
  line-height: .84;
}

.schematic-label {
  margin: 0;
  color: #a7bed3;
  font-size: 13px;
  font-weight: 700;
}

.schematic-rule {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: center;
  margin-top: 32px;
  color: var(--cyan-200);
  font: 750 9px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.schematic-rule::before {
  content: "";
  height: 1px;
  background: var(--cyan-400);
}

.seo-section {
  position: relative;
  padding: clamp(72px, 8vw, 108px) var(--gutter);
}

.seo-section-inner {
  width: min(var(--max), 100%);
  margin: 0 auto;
}

.seo-heading {
  max-width: 860px;
}

.seo-heading h2,
.split-copy h2,
.cta-copy h2 {
  max-width: 15ch;
  margin: 0;
  color: var(--ink);
  font-size: clamp(36px, 4.4vw, 60px);
  font-weight: 790;
  letter-spacing: -.058em;
  line-height: .98;
}

.seo-heading > p:last-child,
.split-copy > p:not(.technical-label),
.cta-copy > p:not(.technical-label) {
  max-width: 690px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.4vw, 20px);
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(44px, 6vw, 70px);
  border-top: 1px solid var(--line);
}

.rule-item {
  min-width: 0;
  min-height: 244px;
  padding: 26px clamp(22px, 3vw, 42px) 32px 0;
  border-bottom: 1px solid var(--line);
}

.rule-item + .rule-item {
  padding-left: clamp(22px, 3vw, 42px);
  border-left: 1px solid var(--line);
}

.rule-index {
  color: var(--cobalt-600);
  font: 800 10px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .13em;
}

.rule-item h3 {
  max-width: 13ch;
  margin: 42px 0 16px;
  font-size: clamp(26px, 2.5vw, 36px);
  letter-spacing: -.048em;
  line-height: 1.02;
}

.rule-item p {
  max-width: 38ch;
  margin: 0;
  color: var(--muted);
}

.split-section {
  background: var(--white);
}

.split-layout {
  width: min(var(--max), 100%);
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(60px, 10vw, 150px);
  align-items: start;
  margin: 0 auto;
}

.fact-lines {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.fact-line {
  display: grid;
  grid-template-columns: minmax(110px, .35fr) 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.fact-line dt {
  color: var(--cobalt-700);
  font: 800 10px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.fact-line dd {
  margin: 0;
  color: var(--ink);
  font-weight: 720;
}

.dark-section {
  background: var(--navy-950);
  color: var(--white);
}

.dark-section .technical-label {
  color: var(--cyan-400);
}

.dark-section .seo-heading h2,
.dark-section .split-copy h2 {
  color: var(--white);
}

.dark-section .seo-heading > p:last-child,
.dark-section .split-copy > p:not(.technical-label) {
  color: #a9bed2;
}

.dark-section .fact-lines {
  border-color: rgba(164, 236, 255, .24);
}

.dark-section .fact-line {
  border-color: rgba(164, 236, 255, .18);
}

.dark-section .fact-line dt {
  color: var(--cyan-200);
}

.dark-section .fact-line dd {
  color: var(--white);
}

.steps-list {
  margin: clamp(44px, 6vw, 70px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.steps-list li {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: clamp(24px, 4vw, 58px);
  padding: clamp(28px, 4vw, 48px) 0;
  border-bottom: 1px solid var(--line);
}

.steps-list .step-number {
  color: var(--cobalt-600);
  font: 800 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .13em;
}

.steps-list h3 {
  max-width: 22ch;
  margin: -7px 0 12px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: -.05em;
  line-height: 1.02;
}

.steps-list p {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.question-list {
  margin-top: clamp(38px, 5vw, 58px);
  border-top: 1px solid var(--line);
}

.question-list details {
  border-bottom: 1px solid var(--line);
}

.question-list summary {
  position: relative;
  min-height: 78px;
  padding: 25px 58px 25px 0;
  cursor: pointer;
  color: var(--ink);
  font-size: clamp(19px, 1.8vw, 25px);
  font-weight: 780;
  letter-spacing: -.026em;
  list-style: none;
}

.question-list summary::-webkit-details-marker {
  display: none;
}

.question-list summary::after {
  content: "+";
  position: absolute;
  top: 18px;
  right: 4px;
  color: var(--cobalt-600);
  font: 400 36px/1 Arial, sans-serif;
}

.question-list details[open] summary {
  color: var(--cobalt-700);
}

.question-list details[open] summary::after {
  content: "−";
}

.question-list details p {
  max-width: 800px;
  margin: -2px 58px 28px 0;
  color: var(--muted);
  font-size: 17px;
}

.cta-section {
  padding-top: 0;
  background: var(--paper);
}

.cta-band {
  width: min(var(--max), 100%);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: end;
  margin: 0 auto;
  padding: clamp(40px, 5vw, 66px);
  background: var(--cyan-400);
  color: var(--navy-1000);
  box-shadow: 12px 12px 0 var(--navy-900);
}

.cta-band .technical-label {
  color: var(--navy-800);
}

.cta-band .cta-copy h2,
.cta-band .cta-copy > p:not(.technical-label) {
  color: var(--navy-1000);
}

.cta-band .button-primary {
  min-width: 220px;
  background: var(--navy-950);
  border-color: var(--navy-950);
}

.cta-band .button-primary:hover {
  background: var(--navy-800);
  border-color: var(--navy-800);
}

.footer-page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  justify-content: flex-end;
}

.site-footer .footer-page-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--white);
  text-decoration: none;
}

.site-footer .footer-page-nav a:hover {
  text-decoration: underline;
}

.primary-nav a[aria-current="page"] {
  color: var(--white);
}

.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

@media (max-width: 860px) {
  .breadcrumb {
    padding-inline: 20px;
  }

  .interior-hero-inner {
    grid-template-columns: 1fr;
    gap: 52px;
    padding: 56px 20px 76px;
  }

  .interior-hero h1 {
    max-width: 14ch;
    font-size: clamp(46px, 9.2vw, 70px);
  }

  .hero-schematic {
    width: min(480px, calc(100% - 24px));
    min-height: 290px;
  }

  .schematic-frame {
    min-height: 220px;
  }

  .seo-section {
    padding-inline: 20px;
  }

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

  .rule-item,
  .rule-item + .rule-item {
    min-height: 0;
    padding: 28px 0 38px;
    border-left: 0;
  }

  .rule-item h3 {
    max-width: 20ch;
    margin-top: 34px;
  }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .cta-band {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 44px 34px;
  }

  .footer-page-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .breadcrumb {
    padding-top: 18px;
  }

  .interior-hero-inner {
    padding-top: 46px;
  }

  .interior-hero h1 {
    font-size: clamp(42px, 12vw, 58px);
  }

  .interior-actions {
    display: grid;
  }

  .hero-schematic {
    width: calc(100% - 12px);
    min-height: 250px;
    padding: 20px;
    box-shadow: 7px 7px 0 rgba(53, 214, 255, .11);
  }

  .schematic-frame {
    min-height: 208px;
    padding: 22px;
  }

  .fact-line {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .steps-list li {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
  }

  .steps-list p,
  .question-list details p {
    font-size: 16px;
  }

  .cta-band {
    padding: 36px 24px;
    box-shadow: 7px 7px 0 var(--navy-900);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-schematic,
  .cta-band {
    box-shadow: none;
  }
}