/* The download flow extends the landing page's quiet, local-first identity. */
.install-section { gap: 64px; align-items: start; }
.install-intro .install-local { font-size: 15px; max-width: 42ch; }
.install-intro .install-platform-scope { font-size: 13px; max-width: 46ch; }
.install-intro > .text-link { margin-top: 26px; }
.download-platforms { padding: 0; margin: 0 0 28px; border: 0; min-width: 0; }
.download-platforms legend { font-size: 14px; font-weight: 600; padding: 0; margin-bottom: 12px; }
.download-platform-choices { display: flex; gap: 8px; }
.download-platform-choices label { position: relative; flex: 1; cursor: pointer; }
.download-platform-choices input { position: absolute; inset: 0; margin: 0; opacity: 0; width: 100%; height: 100%; cursor: pointer; }
.download-platform-choices label > span { display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 10px 16px; border: 1px solid var(--th-rule, var(--line)); border-radius: 6px; font-size: 15px; font-weight: 600; background: var(--th-surface, var(--bg)); color: var(--th-text, var(--ink)); }
.download-platform-choices input:checked + span { background: var(--th-accent, var(--green)); color: var(--th-accent-ink, #f3f4ef); border-color: var(--th-accent, var(--green)); }
.download-platform-choices input:focus-visible + span { outline: 3px solid var(--th-focus, var(--green)); outline-offset: 4px; }
.download-platform-choices label:hover > span { border-color: var(--th-accent, var(--green)); }
.download-panel + .download-panel { margin-top: 40px; }
.download-enhanced .download-panel { margin-top: 0; }
.download-panel-heading h3 { font-size: 24px; line-height: 1.3; letter-spacing: -.025em; }
.download-panel-heading p, .download-package-help { margin-top: 8px; color: var(--th-muted, var(--muted)); font-size: 13px; }
.download-action { margin-top: 22px; }
.download-primary, .download-unavailable { width: 100%; min-height: 54px; }
.download-primary { background: var(--th-accent, var(--green)); color: var(--th-accent-ink, #f3f4ef); }
.download-primary:hover { background: var(--th-accent, var(--green)); filter: brightness(.94); }
.download-unavailable { background: var(--th-surface-2, var(--bg)); color: var(--th-muted, var(--muted)); border-color: var(--th-rule, var(--line)); cursor: default; }
.download-unavailable:hover { transform: none; }
.download-meta { margin-top: 10px; color: var(--th-muted, var(--muted)); font-family: var(--mono); font-size: 12px; font-variant-numeric: tabular-nums; }
.download-status:not(:empty) { margin-top: 12px; color: var(--th-muted, var(--muted)); font-size: 14px; }
.download-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 8px; align-items: center; }
.download-links a, .download-links button { font: inherit; font-size: 13px; color: var(--th-accent, var(--green)); min-height: 44px; display: inline-flex; align-items: center; }
.download-links button { background: transparent; border: 0; padding: 0; text-decoration: underline; text-underline-offset: 4px; }
.download-steps { margin: 20px 0 0; padding: 0 0 0 24px; }
.download-steps li { padding: 0 0 20px 8px; }
.download-steps li::marker { color: var(--th-accent, var(--green)); font-weight: 650; font-variant-numeric: tabular-nums; }
.download-steps strong { font-size: 16px; font-weight: 650; }
.download-steps p { margin-top: 5px; color: var(--th-muted, var(--muted)); font-size: 14px; }
.download-steps a { color: var(--th-accent, var(--green)); }
.download-steps code, .download-panel details code { font-family: var(--mono); font-size: .9em; }
.install-options .download-panel details { border-top: 1px solid var(--th-rule, var(--line)); margin-top: 0; font-size: 14px; }
.download-panel summary { min-height: 44px; padding-block: 12px; color: var(--th-text, var(--ink)); }
.install-options .download-panel details p { font-size: 13px; margin-bottom: 12px; }
.download-panel details > a { display: inline-flex; align-items: center; min-height: 44px; color: var(--th-accent, var(--green)); font-size: 13px; }
.download-linux-choices { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; margin-top: 22px; }
.install-section:not(.download-enhanced) .download-linux-choices { display: none; }
.download-linux-choices label { font-size: 13px; font-weight: 600; min-width: 0; }
.download-linux-choices select { display: block; width: 100%; min-height: 44px; margin-top: 7px; border: 1px solid var(--th-rule, var(--line)); border-radius: 6px; padding: 10px 28px 10px 10px; font: inherit; color: var(--th-text, var(--ink)); background: var(--th-surface, var(--bg)); cursor: pointer; }
.download-linux-choices select:focus-visible { outline: 3px solid var(--th-focus, var(--green)); outline-offset: 4px; }
.download-package-help { min-height: 3.2em; }
.linux-install-command { align-items: start; margin-bottom: 0; }
.linux-install-command code { display: block; white-space: pre-wrap; font-size: 11px; flex: 1; min-width: 0; }
.download-no-script { margin-top: 24px; font-size: 14px; }
@media (max-width: 1200px) { .install-section { gap: 40px; } }
@media (max-width: 900px) { .install-section { grid-template-columns: 1fr; gap: 32px; } }
@media (max-width: 480px) {
  .download-platform-choices label > span { padding-inline: 5px; font-size: 14px; gap: 6px; }
  .download-panel-heading h3 { font-size: 22px; }
  .download-linux-choices { grid-template-columns: 1fr; gap: 12px; }
  .download-meta { font-size: 11px; }
  .linux-install-command { flex-direction: column; gap: 10px; }
}
@media (forced-colors: active) {
  .download-platform-choices input:checked + span { outline: 2px solid Highlight; }
}