/* ── Install guide (/install) ─────────────────────────────────────────────── */
.install-page {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 28px 16px 8px;
    flex: 1;
    width: 100%;
}

.install-hero { max-width: 720px; margin: 0 auto 8px; text-align: center; }
.install-hero h1 { font-size: 1.9rem; color: var(--text-heading); margin-bottom: 10px; }
.install-hero p { color: var(--text-muted); font-size: 1rem; line-height: 1.55; }

.install-cta { margin: 20px 0 26px; text-align: center; }
.install-cta[hidden] { display: none; }
.install-cta .submit-btn { font-size: 1rem; padding: 12px 28px; }
.install-cta p { margin-top: 8px; font-size: 0.82rem; color: var(--text-muted); }

.installed-banner {
    margin: 20px auto 26px;
    max-width: 520px;
    text-align: center;
    background: var(--primary-tint);
    color: var(--primary-700);
    border-radius: var(--radius);
    padding: 14px 16px;
    font-size: 0.95rem;
}
.installed-banner[hidden] { display: none; }

/* Platform tabs */
.install-tabs { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px; }
.install-tab {
    padding: 9px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.install-tab:hover { color: var(--text-heading); border-color: var(--border-strong); }
.install-tab[aria-selected="true"] {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* Panels */
.install-panel { max-width: 760px; margin: 0 auto; }
.install-panel[hidden] { display: none; }
.install-panel h2 { font-size: 1.25rem; color: var(--text-heading); margin-bottom: 6px; }
.install-note { color: var(--text-muted); font-size: 0.92rem; line-height: 1.55; margin-bottom: 18px; }

.browser-block { margin-top: 26px; }
.browser-block > h3 {
    font-size: 1rem;
    color: var(--text-heading);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.browser-badge {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--primary-700);
    background: var(--primary-tint);
    border-radius: var(--radius-pill);
    padding: 3px 9px;
}

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps > li {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}
/* Only the step lists that carry a screenshot use the two-column layout. */
@media (min-width: 720px) {
    .steps--shots > li {
        display: grid;
        gap: 20px;
        align-items: start;
        grid-template-columns: minmax(0, 1fr) 196px;
    }
}
.step-body { display: grid; gap: 6px; align-content: start; }
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary-tint);
    color: var(--primary-700);
    font-weight: 700;
    font-size: 0.85rem;
}
.step-body h3 { font-size: 1rem; color: var(--text-heading); margin: 0; }
.step-body p { color: var(--text-muted); font-size: 0.9rem; margin: 0; line-height: 1.55; }
.step-body strong { color: var(--text); }

/* Screenshots. The highlight ring is baked into each PNG (see
   docs/install-page.md), so there is no overlay to keep in sync here. */
.shot { margin: 0; }
.shot img {
    display: block;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-subtle);
}
.shot figcaption { margin-top: 6px; font-size: 0.78rem; color: var(--text-muted); }

.shot-fallback { display: none; }
.shot-missing img { display: none; }
.shot-missing .shot-fallback {
    display: grid;
    place-items: center;
    text-align: center;
    aspect-ratio: 9 / 19.5;
    padding: 12px;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--bg-subtle);
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Desktop QR */
.qr-card {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
    margin-top: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}
.qr-card img { width: 148px; height: 148px; background: #fff; padding: 8px; border-radius: var(--radius-sm); }
.qr-card div { flex: 1; min-width: 200px; }
.qr-card h3 { font-size: 1rem; color: var(--text-heading); margin-bottom: 4px; }
.qr-card p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.5; }

.install-footnote {
    max-width: 760px;
    margin: 32px auto 0;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.6;
}