.install-page {
  width: min(100%, 68rem);
  margin: 0 auto;
  padding: 4.5rem 1.5rem 6rem;
}

.install-hero {
  max-width: 53rem;
}

.install-kicker {
  margin: 0 0 0.9rem;
  color: #56d4a0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.install-title {
  margin: 0;
  color: var(--text);
  font-family: var(--serif);
  font-size: clamp(3rem, 9vw, 6.4rem);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 0.94;
}

.install-intro {
  max-width: 45rem;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(1.08rem, 2.5vw, 1.42rem);
  line-height: 1.55;
}

.download-card,
.instructions-card,
.install-note {
  border: 1px solid rgba(86, 212, 160, 0.2);
  border-radius: 0.9rem;
  background:
    linear-gradient(135deg, rgba(86, 212, 160, 0.055), transparent 44%),
    var(--card);
  box-shadow: 0 1rem 2.8rem rgba(0, 0, 0, 0.22);
}

.download-card {
  display: grid;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding: 1.35rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.download-card__label,
.platform-label {
  display: block;
  margin: 0 0 0.35rem;
  color: var(--faint);
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.download-card h2 {
  margin: 0;
  color: var(--text);
  font-family: var(--serif);
  font-size: clamp(1.55rem, 4vw, 2.35rem);
  line-height: 1.1;
}

.download-card p {
  margin: 0.45rem 0 0;
  color: var(--faint);
  font-size: 0.78rem;
}

.download-button,
.platform-button,
.other-os-button {
  display: inline-flex;
  min-height: 2.7rem;
  border: 1px solid rgba(86, 212, 160, 0.34);
  border-radius: 999px;
  padding: 0.65rem 0.95rem;
  align-items: center;
  justify-content: center;
  background: rgba(86, 212, 160, 0.08);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.75rem;
  text-decoration: none;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.download-button:hover,
.download-button:focus-visible,
.platform-button:hover,
.platform-button:focus-visible,
.other-os-button:hover,
.other-os-button:focus-visible {
  border-color: rgba(86, 212, 160, 0.68);
  background: rgba(86, 212, 160, 0.14);
  transform: translateY(-1px);
}

.platform-section {
  margin-top: 3.5rem;
}

.platform-heading {
  margin: 0;
  color: var(--text);
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 3.4rem);
}

.platform-detection {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem 1rem;
  margin-top: 1.1rem;
}

.platform-detection p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.other-os-button {
  min-height: 2.3rem;
  padding: 0.45rem 0.75rem;
  background: transparent;
  color: #9fe8c9;
  cursor: pointer;
}

.platform-switch {
  display: inline-grid;
  gap: 0.4rem;
  margin: 1.4rem 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.platform-button {
  min-width: 9rem;
  border-color: var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.platform-button[aria-pressed="true"] {
  border-color: rgba(86, 212, 160, 0.55);
  background: rgba(86, 212, 160, 0.12);
  color: var(--text);
}

.instructions-card {
  padding: clamp(1.2rem, 4vw, 2rem);
}

.developer-mode-note {
  margin: 0 0 1.4rem;
  border-color: rgba(86, 212, 160, 0.36);
  background: rgba(86, 212, 160, 0.07);
}

.developer-mode-note h3 {
  color: #baf3dc;
}

.instructions-card[hidden] {
  display: none;
}

.instructions-card h3 {
  margin: 0;
  color: var(--text);
  font-family: var(--serif);
  font-size: clamp(1.65rem, 4vw, 2.45rem);
}

.instructions-card > p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.75;
}

.step-list {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: install-step;
}

.step-list li {
  position: relative;
  min-height: 3rem;
  padding: 0.05rem 0 0 3.65rem;
  color: var(--muted);
  line-height: 1.72;
  counter-increment: install-step;
}

.step-list li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 2.55rem;
  height: 2.55rem;
  border: 1px solid rgba(86, 212, 160, 0.28);
  border-radius: 0.7rem;
  place-items: center;
  background: rgba(86, 212, 160, 0.065);
  color: #9fe8c9;
  content: counter(install-step, decimal-leading-zero);
  font-size: 0.72rem;
}

.step-list strong {
  color: var(--text);
}

.step-list a,
.install-note a {
  color: #9fe8c9;
  text-underline-offset: 0.18em;
}

.install-note {
  margin-top: 1.2rem;
  padding: 1.1rem 1.2rem;
  background: rgba(78, 154, 241, 0.045);
}

.install-note h3 {
  margin: 0;
  color: var(--text);
  font-size: 0.88rem;
}

.install-note p {
  margin: 0.45rem 0 0;
  color: var(--faint);
  font-size: 0.78rem;
  line-height: 1.7;
}

@media (max-width: 42rem) {
  .install-page {
    padding: 3rem 1rem 4rem;
  }

  .download-card {
    grid-template-columns: 100%;
  }

  .download-button {
    width: 100%;
  }

  .platform-switch {
    display: grid;
    width: 100%;
  }

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