.install-guide {
    display: grid;
    gap: 1rem;
    margin: 0 auto;
    max-width: 52rem;
    padding: 1.25rem max(1rem, env(safe-area-inset-right)) 2.5rem max(1rem, env(safe-area-inset-left));
}
.install-guide-hero,
.install-platform-picker,
.install-platform-panel,
.install-troubleshooting {
    background: rgba(255, 253, 248, .82);
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    box-shadow: 0 10px 28px rgba(29, 27, 22, .05);
    padding: clamp(1rem, 3.5vw, 1.7rem);
}
.install-noscript-note { background: #fff4df; border-left: 3px solid var(--orange); color: #614719; line-height: 1.4; margin: 0; padding: .65rem .75rem; }
.install-guide-hero { display: grid; gap: .75rem; }
.install-guide h1,
.install-guide h2 { letter-spacing: -.025em; margin: 0; }
.install-guide h1 { font-size: clamp(2rem, 7vw, 3.2rem); line-height: 1; max-width: 16ch; }
.install-guide h2 { font-size: clamp(1.35rem, 4vw, 1.85rem); line-height: 1.1; }
.install-guide .lede { color: var(--muted); font-size: 1.06rem; line-height: 1.48; margin: 0; max-width: 40rem; }
.install-installed-message { background: #eef6ee; border: 1px solid #b9d2ba; border-left: 4px solid var(--green); border-radius: 9px; color: #264a31; display: grid; gap: .2rem; margin-top: .25rem; padding: .72rem .85rem; }
.install-installed-message span { font-size: .9rem; line-height: 1.4; }
.install-section-heading { display: grid; gap: .35rem; }
.install-platform-picker { display: grid; gap: 1rem; }
.install-platform-tabs { display: grid; gap: .55rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.install-platform-tabs button { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; color: var(--ink); cursor: pointer; font: inherit; font-size: .9rem; font-weight: 800; min-height: 2.75rem; padding: .45rem; }
.install-platform-tabs button[aria-selected="true"] { background: var(--charcoal); border-color: var(--charcoal); color: var(--paper); }
.install-platform-tabs button:focus-visible,
.install-step-list a:focus-visible { outline: 3px solid var(--orange); outline-offset: 2px; }
.install-platform-panel { display: grid; gap: 1rem; }
.install-platform-panel[hidden] { display: none; }
.install-panel-intro { align-items: start; display: flex; gap: .75rem; justify-content: space-between; }
.install-panel-intro > div { display: grid; gap: .35rem; }
.install-panel-badge { background: #f8f1df; border: 1px solid #decfae; border-radius: 999px; color: #7c5a12; flex: 0 0 auto; font-size: .72rem; font-weight: 850; padding: .32rem .55rem; text-align: center; }
.install-browser-note { background: #fff4df; border-left: 3px solid var(--orange); color: #614719; line-height: 1.4; margin: 0; padding: .65rem .75rem; }
.install-native-action { align-items: center; background: #f7f3ea; border: 1px solid var(--line-soft); border-radius: 9px; display: flex; flex-wrap: wrap; gap: .65rem 1rem; justify-content: space-between; padding: .7rem; }
.install-native-action .button-link { flex: 0 0 auto; min-height: 2.65rem; }
.install-native-action p { color: var(--muted); flex: 1 1 15rem; font-size: .88rem; line-height: 1.35; margin: 0; }
.install-step-list { counter-reset: none; display: grid; gap: .85rem; list-style: none; margin: 0; padding: 0; }
.install-step-list li { align-items: start; display: grid; gap: .75rem; grid-template-columns: 2rem minmax(0, 1fr); }
.install-step-number { align-items: center; background: var(--ink); border-radius: 50%; color: var(--paper); display: inline-flex; font-size: .83rem; font-weight: 900; height: 1.85rem; justify-content: center; line-height: 1; width: 1.85rem; }
.install-step-list li > div { display: grid; gap: .2rem; padding-top: .12rem; }
.install-step-list strong { font-size: 1rem; }
.install-step-list p { color: var(--muted); line-height: 1.4; margin: 0; }
.install-step-list figure { margin: .55rem 0 0; max-width: 25rem; }
.install-step-list figure img { border: 1px solid var(--line); border-radius: 9px; display: block; height: auto; max-width: 100%; }
.install-step-list figcaption { color: var(--muted); font-size: .78rem; margin-top: .25rem; }
.install-troubleshooting { display: grid; gap: .55rem; }
.install-troubleshooting details { border-bottom: 1px solid var(--line-soft); padding: .45rem 0 .7rem; }
.install-troubleshooting details:last-child { border-bottom: 0; padding-bottom: 0; }
.install-troubleshooting summary { cursor: pointer; font-weight: 850; line-height: 1.35; }
.install-troubleshooting p { color: var(--muted); line-height: 1.42; margin: .5rem 0 0; }
@media (max-width: 560px) {
    .install-guide { gap: .75rem; padding-top: .75rem; }
    .install-guide-hero,
    .install-platform-picker,
    .install-platform-panel,
    .install-troubleshooting { border-radius: 11px; padding: 1rem; }
    .install-platform-tabs { gap: .35rem; }
    .install-platform-tabs button { font-size: .76rem; min-height: 2.55rem; padding-inline: .25rem; }
    .install-panel-intro { align-items: stretch; flex-direction: column; }
    .install-panel-badge { align-self: start; }
    .install-native-action { align-items: stretch; flex-direction: column; }
    .install-native-action .button-link { justify-content: center; width: 100%; }
    .install-step-list { gap: .75rem; }
}