.download-hero {
  position: relative;
  padding-top: clamp(54px, 8vw, 104px);
  padding-bottom: clamp(54px, 8vw, 96px);
  overflow: hidden;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.download-hero::before {
  position: absolute;
  top: 0;
  right: clamp(24px, 8vw, 120px);
  width: 6px;
  height: 82px;
  border-radius: 0 0 var(--radius-xs) var(--radius-xs);
  background: var(--color-accent);
  content: "";
}

.download-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
  gap: clamp(40px, 7vw, 92px);
  align-items: center;
}

.download-hero-copy h1 {
  max-width: 8em;
  margin-bottom: 24px;
}

.download-hero-copy .lead {
  margin-bottom: 28px;
}

.download-map {
  position: relative;
  padding: 28px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
}

.download-map-line {
  position: absolute;
  top: 42px;
  bottom: 42px;
  left: 47px;
  width: 5px;
  border-radius: var(--radius-xs);
  background: linear-gradient(to bottom, var(--color-accent), var(--color-accent-deep));
}

.download-map-step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.download-map-step + .download-map-step {
  margin-top: 26px;
}

.download-map-step > span {
  position: relative;
  z-index: 1;
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 3px solid var(--color-mint);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.download-map-step:nth-of-type(3) > span {
  border-color: var(--color-sky);
}

.download-map-step:nth-of-type(4) > span {
  border-color: var(--color-lemon);
}

.download-map-step strong {
  display: block;
  margin-bottom: 3px;
  font-size: 17px;
}

.download-map-step p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.download-browser {
  background: var(--color-canvas);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 42px;
}

.section-heading h2 {
  margin-bottom: 14px;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 17px;
}

.download-browser .tab-list {
  position: sticky;
  top: 12px;
  z-index: 5;
  margin-bottom: 38px;
}

.platform-panel {
  min-width: 0;
}

.platform-intro {
  display: grid;
  margin-bottom: 30px;
  padding-bottom: 30px;
  grid-template-columns: minmax(250px, .7fr) minmax(0, 1.3fr);
  gap: 36px;
  align-items: end;
  border-bottom: 1px solid var(--color-line);
}

.platform-intro h2 {
  margin-bottom: 0;
  font-size: clamp(22px, 2.6vw, 30px);
}

.platform-intro > p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.platform-code,
.package-key {
  display: inline-block;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}

.platform-code {
  margin-bottom: 9px;
}

.client-card {
  overflow: hidden;
}

.client-card p {
  max-width: 68em;
  color: var(--color-muted);
}

.package-choice-grid {
  display: grid;
  margin-top: 28px;
  margin-bottom: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.package-choice {
  display: flex;
  min-width: 0;
  padding: clamp(20px, 3vw, 30px);
  flex-direction: column;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.package-choice:nth-child(even) {
  background: var(--color-canvas);
}

.package-choice-head {
  display: flex;
  margin-bottom: 14px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.package-choice h4 {
  margin-top: 4px;
  margin-bottom: 0;
  font-size: 21px;
}

.package-choice p {
  margin-bottom: 20px;
  flex: 1 1 auto;
  font-size: 15px;
}

.package-choice .btn {
  width: 100%;
  min-height: 52px;
  align-self: stretch;
  font-size: 17px;
  font-weight: 700;
}

.architecture-link {
  display: inline-flex;
  margin-top: 14px;
  align-self: flex-start;
  color: var(--color-accent-deep);
  font-size: 14px;
  font-weight: 650;
}

.requirements-block {
  margin-top: 34px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--color-line);
  border-left: 6px solid var(--color-sky);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-panel);
}

.requirements-block h3 {
  margin-bottom: 20px;
  font-family: var(--font-display);
}

.requirements-note {
  margin-top: 20px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.selection-layout {
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr);
  gap: clamp(42px, 8vw, 100px);
  align-items: start;
}

.selection-heading {
  position: sticky;
  top: 24px;
}

.selection-heading h2 {
  margin-bottom: 16px;
}

.selection-steps {
  border-top: 1px solid var(--color-line);
}

.selection-step {
  display: grid;
  padding-top: 30px;
  padding-bottom: 30px;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 20px;
  border-bottom: 1px solid var(--color-line);
}

.selection-number {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 4px solid var(--color-mint);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  font-family: var(--font-mono);
  font-weight: 700;
}

.selection-step:nth-child(2) .selection-number {
  border-color: var(--color-sky);
}

.selection-step:nth-child(3) .selection-number {
  border-color: var(--color-lemon);
}

.selection-step h3 {
  margin-bottom: 10px;
  font-family: var(--font-display);
}

.selection-step p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.after-download-grid {
  max-width: 980px;
}

.setup-sequence {
  margin-top: 42px;
  margin-bottom: 36px;
  padding: 0;
  counter-reset: setup-step;
  list-style: none;
}

.setup-sequence li {
  position: relative;
  min-height: 112px;
  padding: 0 0 36px 74px;
  counter-increment: setup-step;
}

.setup-sequence li::before {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border: 4px solid var(--color-accent);
  border-radius: var(--radius-pill);
  background: var(--color-canvas);
  content: counter(setup-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.setup-sequence li::after {
  position: absolute;
  top: 46px;
  bottom: 0;
  left: 21px;
  width: 4px;
  background: var(--color-accent);
  content: "";
}

.setup-sequence li:last-child::after {
  display: none;
}

.setup-sequence h3 {
  margin-bottom: 8px;
  font-family: var(--font-display);
}

.setup-sequence p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.setup-actions {
  padding-left: 74px;
}

@media (max-width: 900px) {
  .download-hero-grid,
  .selection-layout {
    grid-template-columns: 1fr;
  }

  .download-map {
    max-width: 620px;
  }

  .platform-intro {
    grid-template-columns: 1fr;
    gap: 14px;
    align-items: start;
  }

  .selection-heading {
    position: static;
  }
}

@media (max-width: 768px) {
  .download-hero {
    padding-top: 44px;
    padding-bottom: 54px;
  }

  .download-hero::before {
    right: var(--gutter);
    height: 52px;
  }

  .download-hero-grid {
    gap: 32px;
  }

  .download-map {
    padding: 22px;
  }

  .download-map-line {
    left: 41px;
  }

  .package-choice-grid {
    grid-template-columns: 1fr;
  }

  .package-choice .btn {
    width: 100%;
  }

  .requirements-block {
    padding: 20px;
  }
}

@media (max-width: 520px) {
  .download-map-step {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .download-map-step > span {
    width: 36px;
    height: 36px;
  }

  .download-map-line {
    top: 38px;
    bottom: 38px;
    left: 37px;
    width: 4px;
  }

  .package-choice-head {
    flex-direction: column;
  }

  .selection-step {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
  }

  .selection-number {
    width: 38px;
    height: 38px;
    border-width: 3px;
  }

  .setup-sequence li {
    padding-left: 58px;
  }

  .setup-sequence li::before {
    width: 38px;
    height: 38px;
    border-width: 3px;
  }

  .setup-sequence li::after {
    top: 38px;
    left: 17px;
  }

  .setup-actions {
    padding-left: 0;
  }

  .setup-actions .btn {
    width: 100%;
  }
}