.page-home {
  color: var(--text-bright);
  overflow-x: hidden;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-home .hero {
  position: relative;
  padding: clamp(24px, 4.5vw, 56px) 0 clamp(32px, 5vw, 72px);
  background:
    radial-gradient(110% 80% at 84% 6%, var(--cyan-08), transparent 58%),
    radial-gradient(90% 70% at 8% 0%, rgba(18, 48, 107, .80), transparent 62%);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(44, 75, 140, .12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 75, 140, .12) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}

.page-home .hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-home .hero__intro h1 {
  margin: .35em 0 .55em;
  font-size: clamp(30px, 5.4vw, 62px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: .02em;
}

.page-home .hero__accent {
  position: relative;
  display: block;
  margin-top: .28em;
  padding-bottom: .18em;
  font-size: .78em;
  color: var(--text-bright);
}

.page-home .hero__accent::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 116px;
  height: 3px;
  background: var(--cyan);
}

.page-home .hero .lede {
  max-width: 44ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .chapter-index {
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
  counter-reset: none;
}

.page-home .chapter-index li {
  border-bottom: 1px solid var(--line-500);
}

.page-home .chapter-index a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 12px 4px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease), background-color .2s var(--ease);
}

.page-home .chapter-index a:hover,
.page-home .chapter-index a:focus-visible {
  padding-left: 12px;
  color: var(--text-bright);
  background-color: rgba(51, 242, 208, .05);
}

.page-home .chapter-index .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-home .chapter-index__go {
  color: var(--line-500);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-home .chapter-index a:hover .chapter-index__go,
.page-home .chapter-index a:focus-visible .chapter-index__go {
  color: var(--cyan);
}

.page-home .hero__preview {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  min-width: 0;
}

.page-home .preview-lead {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-500);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(160deg, rgba(18, 48, 107, .60), var(--glass-deep));
}

.page-home .preview-lead__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-home .preview-lead__cap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  border-top: 1px solid var(--line-500);
}

.page-home .preview-list {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .preview-card {
  position: relative;
  padding: 20px 20px 18px;
  border: 1px solid var(--line-500);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(8px);
  transition: border-color .2s var(--ease), transform .2s var(--ease), background-color .2s var(--ease);
}

.page-home .preview-card:hover,
.page-home .preview-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(18, 48, 107, .48);
}

.page-home .preview-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-home .preview-card__title {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: .01em;
}

.page-home .preview-card__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

.page-home .preview-card__link {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--text-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-30);
  padding-bottom: 2px;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-home .preview-card__link:hover,
.page-home .preview-card__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-home .chapter {
  position: relative;
  padding: clamp(40px, 6vw, 88px) 0;
}

.page-home .chapter__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 44px);
  align-items: start;
}

.page-home .chapter__head h2 {
  margin: .3em 0 .5em;
  font-size: clamp(24px, 3.4vw, 42px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .02em;
}

.page-home .chapter__head--wide {
  max-width: 60ch;
}

.page-home .chapter__lede {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .chapter__body {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  min-width: 0;
}

.page-home .capability-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .capability {
  padding: 22px 20px;
  border-radius: var(--radius);
}

.page-home .capability h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text-bright);
}

.page-home .capability p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .overview-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 22px 20px;
  border-top: 1px solid var(--line-500);
  border-bottom: 1px solid var(--line-500);
}

.page-home .stat {
  min-width: 0;
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .stat-num small {
  margin-left: 2px;
  font-size: .48em;
  color: var(--text-muted);
}

.page-home .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--text-muted);
}

.page-home .team-note {
  padding: 22px 20px;
  border-radius: var(--radius);
}

.page-home .team-note__line {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-bright);
}

.page-home .team-note__meta {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .team-note__link,
.page-home .chapter__foot-link,
.page-home .device-note__link,
.page-home .library-note__link,
.page-home .help-path__link {
  display: inline-block;
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--text-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-30);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .team-note__link:hover,
.page-home .team-note__link:focus-visible,
.page-home .chapter__foot-link:hover,
.page-home .chapter__foot-link:focus-visible,
.page-home .device-note__link:hover,
.page-home .device-note__link:focus-visible,
.page-home .library-note__link:hover,
.page-home .library-note__link:focus-visible,
.page-home .help-path__link:hover,
.page-home .help-path__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-home .chapter__figure {
  margin: 0;
}

.page-home .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .media-frame {
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .steps {
  display: grid;
  gap: 18px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .step {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line-500);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(18, 48, 107, .55), rgba(7, 20, 51, .40));
  transition: border-color .2s var(--ease);
}

.page-home .step:hover,
.page-home .step:focus-within {
  border-color: var(--cyan);
}

.page-home .step__dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 12px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-home .step h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-home .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .step__more {
  max-height: 0;
  margin-top: 0 !important;
  overflow: hidden;
  opacity: 0;
  transition: max-height .24s var(--ease), opacity .24s var(--ease), margin-top .24s var(--ease);
}

.page-home .step:hover .step__more,
.page-home .step:focus-within .step__more {
  max-height: 160px;
  margin-top: 10px !important;
  opacity: 1;
}

.page-home .chapter__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .chapter__foot-link {
  margin-left: 8px;
}

.page-home .device-figure {
  margin: 0;
}

.page-home .device-cols {
  display: grid;
  gap: 16px;
}

.page-home .device-card {
  padding: 22px 20px;
  border-radius: var(--radius);
}

.page-home .device-card h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-home .device-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .device-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .device-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-home .device-note,
.page-home .library-note {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan-30);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .device-note__link,
.page-home .library-note__link {
  margin-left: 8px;
}

.page-home .library-figure {
  margin: 0;
}

.page-home .library-facts {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .library-facts li {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-500);
}

.page-home .library-facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .library-facts h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text-bright);
}

.page-home .library-facts p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .help-path {
  display: grid;
  gap: 0;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-500);
  counter-reset: none;
}

.page-home .help-path__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-500);
}

.page-home .help-path__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
  padding-top: .35em;
}

.page-home .help-path__item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-home .help-path__item p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-home .support-note {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 22px 20px;
  border-radius: var(--radius);
}

.page-home .support-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .entry-note {
  display: grid;
  gap: 16px;
  margin-top: clamp(36px, 5vw, 64px);
  padding-top: clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--line-500);
  align-items: center;
}

.page-home .entry-note__text {
  margin: 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .entry-note .btn {
  justify-self: start;
}

@media (min-width: 640px) {
  .page-home .preview-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .capability-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .capability:first-child {
    grid-column: 1 / -1;
  }

  .page-home .overview-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .entry-note {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 800px) {
  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

  .page-home .step:first-child::after {
    content: "";
    position: absolute;
    top: 43px;
    left: 100%;
    width: 28px;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), var(--line-500));
  }

  .page-home .step__more {
    max-height: 160px;
    margin-top: 10px !important;
    opacity: 1;
  }

  .page-home .device-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .help-path__item {
    grid-template-columns: auto minmax(0, 1fr);
    padding: 26px 0;
  }
}

@media (min-width: 1000px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(320px, 34%) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-home .chapter__grid {
    grid-template-columns: minmax(260px, 30%) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-home .chapter__head h2 {
    font-size: clamp(28px, 2.6vw, 42px);
  }

  .page-home .library-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 28px;
  }

  .page-home .library-facts li {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-home .library-facts li:first-child {
    grid-column: 1 / -1;
  }

  .page-home .preview-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .page-home .hero__preview {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .preview-card,
  .page-home .chapter-index a,
  .page-home .step,
  .page-home .step__more {
    transition: none;
  }

  .page-home .preview-card:hover,
  .page-home .preview-card:focus-within {
    transform: none;
  }
}