The home on phones: the questions and the API samples are folds (#23)

ddiff --git a/public/css/domains.css b/public/css/domains.css
iindex 7c9e5e6..4520205 100644
---- a/public/css/domains.css
++++ b/public/css/domains.css
@@@ -262,3 +262,56 @@ html[data-ov-motion=reduced] .dm-bar span { transform: none !important; transiti
    .ov-room article a::after { content: ''; position: absolute; left: 0; right: 0; top: -4px; bottom: -4px; }
    .dm-more::after { content: ''; position: absolute; left: 0; right: 0; top: -14px; bottom: -14px; }
  }
++
++/* The phone home (2026-10-30, the owner's short-pages rule): the questions and the API samples are folds, and the
++   endings are one sideways row (every ending is still there). A wider screen shows the grid and no chips. */
++/* Pick (the owner's short-pages rule, 2026-10-30): on a phone the front page's blocks of the same kind are one at a
++   time, picked with a row of chips. Radio inputs and :has(), no script: the chips and the one-pane rule live under
++   640 px and only where :has() is understood, so a wider screen, or an older browser, shows every pane and no chips.
++   Every pane stays in the page for crawlers. */
++.pick-head { display: none; }
++.pick-row { display: none; }
++@supports selector(:has(*)) { @media (max-width: 640px) {
++  .pick-bar { margin-top: 30px; }
++  .pick-head { display: block; }
++  .pick-head h2 { margin: 0 0 4px; font: 700 clamp(20px, 2.4vw, 28px)/1.2 var(--ov-font, 'Inter', system-ui, sans-serif); letter-spacing: -.02em; }
++  .pick-row { display: flex; gap: 8px; overflow-x: auto; margin: 10px -16px 0; padding: 2px 16px 4px; scrollbar-width: none; overscroll-behavior-x: contain; }
++  .pick-row::-webkit-scrollbar { display: none; }
++  .pick-row input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
++  .pick-row label { display: inline-flex; align-items: center; flex: none; min-height: 44px; padding: 0 15px; border-radius: 999px; border: 1px solid var(--border, #1f2d47); color: var(--text-secondary, #96a7c2); font-size: .9rem; font-weight: 650; white-space: nowrap; cursor: pointer; }
++  .pick-row input:checked + label { color: var(--text-primary, #e6edf7); border-color: var(--accent, #3b82f6); background: color-mix(in srgb, var(--accent, #3b82f6) 12%, transparent); }
++  .pick-row input:focus-visible + label { outline: 2px solid var(--accent, #3b82f6); outline-offset: 2px; }
++  .pick .pick-pane { display: none; }
++  /* A link that points at a pane opens that pane on a phone too. */
++  .pick .pick-pane:target { display: block !important; }
++  .pick:has(.pick-pane:target) .pick-pane:not(:target) { display: none !important; }
++  /* The chip names the pane, so the pane's own heading gives way to it; the link to more stays. */
++  .pick .pick-pane > h2, .pick .pick-pane > h3 { display: none; }
++} }
++
++/* The fold (the owner's short-pages rule): closed on a phone, and where there is room it looks like the section it
++   replaces: a heading and its content, with no card around it. */
++.hm-fold-block { margin-top: 32px; }
++.hm-fold-block > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-height: 44px; cursor: pointer; list-style: none; }
++.hm-fold-block > summary::-webkit-details-marker { display: none; }
++.hm-fold-block > summary h2 { margin: 0; font: 700 clamp(19px, 2.2vw, 26px)/1.2 var(--ov-font, 'Inter', system-ui, sans-serif); }
++.hm-fold-block > summary span { color: var(--text-muted, #7386a3); font-weight: 600; font-size: .86rem; white-space: nowrap; }
++.hm-fold-block > summary:focus-visible { outline: 2px solid var(--accent, #3b82f6); outline-offset: 2px; }
++@media (min-width: 641px) {
++  .hm-fold-block { border: 0; background: none; border-radius: 0; margin: 56px auto 0; padding: 0; }
++  .hm-fold-block > summary { display: block; min-height: 0; }
++  .hm-fold-block > summary h2 { margin: 0 0 6px; font: 700 clamp(22px, 2.6vw, 30px)/1.2 var(--ov-font, 'Inter', system-ui, sans-serif); }
++  .hm-fold-block > summary span { display: none; }
++  .hm-fold-block .hm-sec, .hm-fold-block .sc-sec { margin: 0; max-width: none; padding: 0; }
++}
++@media (max-width: 640px) { .hm-fold-block { margin-top: 24px; } .hm-fold-block > summary h2 { font-size: 1.05rem; } }
++/* A fold that sits inside the section it replaces adds no space of its own. */
++:where(.sc-sec, .cm-sec, .hm-sec, .section) > .hm-fold-block { margin: 0; }
++/* The fold holds the questions and the samples, so they get the room the section gave them. */
++.hm-fold-block .sc-faq, .hm-fold-block .sc-code { margin: 0; padding: 0 16px 16px; }
++/* The endings on a phone: one sideways row of tiles, every ending still in the page. */
++@media (max-width: 599px) {
++  .dm-board { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: 16px; gap: 10px; margin-left: -16px; margin-right: -16px; padding: 0 16px 4px; scrollbar-width: none; }
++  .dm-board::-webkit-scrollbar { display: none; }
++  .dm-board > li { flex: 0 0 62%; min-width: 0; scroll-snap-align: start; }
++}
ddiff --git a/server/views/index.js b/server/views/index.js
iindex ca542fc..6a4f7a7 100644
---- a/server/views/index.js
++++ b/server/views/index.js
@@@ -22,6 +22,7 @@ const kit = require('openvibe-shared/kit');
  const sc = require('openvibe-shared/showcase');
  const rooms = require('openvibe-shared/rooms');
  const { priceRows } = require('../pricing');
++const { foldSection } = require('./short');
  
  const NAME = 'OpenVibe.Domains';
  const NETWORK = 'https://openvibe.network';
@@@ -149,7 +150,7 @@ function home({ endings, lists } = {}) {
          + `<ul class="dm-board">${rows.slice(0, 12).map(tile).join('')}</ul></section>` : '';
      const looked = lists && Array.isArray(lists.most_looked_up) ? lists.most_looked_up.slice(0, 8) : [];
      const lookedHTML = looked.length ? `<section class="dm-looked" aria-labelledby="dm-looked-h"><h2 id="dm-looked-h">Looked up most</h2><ul class="dm-chips">${looked.map((d) => `<li><a href="/d/${encodeURIComponent(d.domain || d.name || '')}">${esc(d.domain || d.name || '')}</a></li>`).join('')}</ul></section>` : '';
--    const body = sc.room({
++    let body = sc.room({
          room: 'domains',
          hero: {
              title: ROOM.line,
@@@ -182,6 +183,10 @@ function home({ endings, lists } = {}) {
              ['Is a name I search for kept?', 'Searches are not tied to you. A domain\'s public history is kept only after it has been looked up five times, and holds public registration facts only.'],
          ] },
      });
++    // The home on a phone (the owner's short-pages rule, 2026-10-30): the questions and the API samples are folds, so
++    // the room is one or two screens. Both stay in the page for the crawlers and open where there is room.
++    body = foldSection(body, 'class="sc-faq"', 'faq-fold');
++    body = foldSection(body, 'class="sc-code"', 'dev-fold');
      return layout({ title: null, canonical: undefined, body: `<div class="dm-wrap">${body}</div>`, active: '/', jsonLd: [{ '@context': 'https://schema.org', '@type': 'WebSite', name: NAME, url: 'https://openvibe.domains/', potentialAction: { '@type': 'SearchAction', target: 'https://openvibe.domains/search?q={name}', 'query-input': 'required name=name' } }] });
  }
  
ddiff --git a/server/views/short.js b/server/views/short.js
nnew file mode 100644
iindex 0000000..d201b02
---- /dev/null
++++ b/server/views/short.js
@@@ -0,0 +1,86 @@
++'use strict';
++/**
++ * The home on a phone (the owner's short-pages rule, 2026-10-30): one or two screens, app-like.
++ *
++ *   pickBlock()  several blocks of the same kind, one at a time on a phone, picked with a row of chips. Radio
++ *                inputs and :has(), no script: every block stays in the page for crawlers, and a wider screen (or a
++ *                browser without :has()) shows them all and no chips.
++ *   foldBlock()  a part a reader rarely needs, closed on a phone and open where there is room. The page's own markup
++ *                keeps it open, so a browser without the script shows it as before; the script closes it on a narrow
++ *                screen and remembers the reader's choice.
++ *
++ * The CSS for both lives in the site's own stylesheet; the rule that shows the picked block is written for the
++ * page, because there is one per block.
++ */
++const esc = (s) => String(s == null ? '' : s).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
++
++/**
++ * A pick block. The panes are the page's own blocks; each one keeps its heading on a wide screen, and on a phone the
++ * heading gives way to the chip that names it.
++ *
++ *   pickBlock({ key, label, head, panes })   head: the heading of the block, or '' when the block already has one.
++ *                                           panes: [{ id, label, html }]
++ */
++function pickBlock({ key, label, head = '', panes, bodyClass = '' }) {
++    // A pane with nothing to show is left out, so the chips and the rules that show them match the page.
++    panes = (panes || []).filter((p) => p.html);
++    if (!panes.length) return '';
++    const chips = panes.map((p, i) => `<input type="radio" name="pick-${esc(key)}" id="pk-${esc(key)}-${esc(p.id)}" value="${esc(p.id)}"${i === 0 ? ' checked' : ''}><label for="pk-${esc(key)}-${esc(p.id)}">${esc(p.label)}</label>`).join('');
++    // The pane carries the id the page already links to (an anchor in the hero, for instance), so a link to it still
++    // opens that pane on a phone (the CSS shows the pane a link points at).
++    const body = panes.map((p) => `<div class="pick-pane" id="${esc(p.id)}">${p.html}</div>`).join('');
++    const bar = `${head ? `<div class="pick-head"><h2>${esc(head)}</h2></div>` : ''}<div class="pick-row" role="radiogroup" aria-label="${esc(label)}">${chips}</div>`;
++    return `<div class="pick" id="pick-${esc(key)}"><div class="pick-bar">${bar}</div><div class="pick-body${bodyClass ? ' ' + esc(bodyClass) : ''}">${body}</div></div>`;
++}
++
++/** The rule that shows the picked block of a pick block: one per block, so the CSS is written for the page. */
++function pickRule(key, id) {
++    return `.pick:has(#pk-${key}-${id}:checked) #${id}{display:block}`;
++}
++
++/** The rules for every block of a pick block, in the order they appear. */
++function pickRules(key, ids) {
++    return ids.map((id) => pickRule(key, id)).join('');
++}
++
++/**
++ * A fold. The head is the heading the block had; the html is what it holds.
++ *
++ *   foldBlock({ id, head, html })
++ */
++function foldBlock({ id, head, html }) {
++    return `<details class="hm-fold hm-fold-block" id="${esc(id)}" open><summary>${head}<span>tap to open</span></summary>${html}</details>${foldScript(id)}`;
++}
++
++/** The script a fold carries: closed on a phone unless the reader opened it before, and it remembers that. */
++function foldScript(id) {
++    return `<script>(function(){var d=document.getElementById(${JSON.stringify(id)});if(!d)return;var k='ov_fold_'+${JSON.stringify(id)};var s=null;try{s=localStorage.getItem(k)}catch(e){}if(s==='open'){d.open=true;return}if(s==='closed'){d.open=false;return}var t=0;if(window.matchMedia&&window.matchMedia('(max-width:640px)').matches){t=Date.now();d.open=false}d.addEventListener('toggle',function(){if(Date.now()-t<300)return;try{localStorage.setItem(k,d.open?'open':'closed')}catch(e){}})})();</script>`;
++}
++
++/**
++ * A section of the page's own markup as a fold. The section stays where it was; its own heading becomes the fold's
++ * heading, and the fold is closed on a phone (the script) and open where there is room.
++ *
++ *   foldSection(html, needle, id)   needle: a mark of the part to fold (a class, for instance)
++ */
++function foldSection(html, needle, id) {
++    const at = html.indexOf(needle);
++    if (at < 0) return html;
++    const start = html.lastIndexOf('<section', at);
++    const close = html.indexOf('</section>', at);
++    if (start < 0 || close < 0) return html;
++    const openEnd = html.indexOf('>', start) + 1;
++    const openTag = html.slice(start, openEnd);
++    let inner = html.slice(openEnd, close);
++    const h2 = /<h2[^>]*>[\s\S]*?<\/h2>/.exec(inner);
++    if (!h2) return html;
++    const head = h2[0];
++    inner = inner.slice(h2.index + head.length);
++    // The lede under the heading goes with it: the fold's heading says enough on a phone.
++    const lede = /<p class="sc-lede"[^>]*>[\s\S]*?<\/p>/.exec(inner);
++    if (lede) inner = inner.slice(0, lede.index) + inner.slice(lede.index + lede[0].length);
++    const fold = `<details class="hm-fold hm-fold-block" id="${esc(id)}" open><summary>${head}<span>tap to open</span></summary>${inner.trim()}</details>${foldScript(id)}`;
++    return html.slice(0, start) + openTag + fold + html.slice(close);
++}
++
++module.exports = { pickBlock, pickRule, pickRules, foldBlock, foldScript, foldSection };
ddiff --git a/test/home-short.test.js b/test/home-short.test.js
nnew file mode 100644
iindex 0000000..fc7a12b
---- /dev/null
++++ b/test/home-short.test.js
@@@ -0,0 +1,38 @@
++'use strict';
++/**
++ * The home on a phone (the owner's short-pages rule, 2026-10-30): the questions and the API samples are folds, closed
++ * on a phone and open where there is room, and the endings are one sideways row. Everything stays in the page for the
++ * crawlers.
++ */
++const assert = require('assert');
++const fs = require('fs');
++const path = require('path');
++const { boot, check, done } = require('./helpers');
++
++(async () => {
++    const t = await boot();
++    try {
++        await check('the questions and the API samples are folds, open in the page and closed on a phone', async () => {
++            const r = await t.get('/');
++            assert.strictEqual(r.status, 200, r.text);
++            for (const id of ['faq-fold', 'dev-fold']) {
++                assert.ok(r.text.includes(`<details class="hm-fold hm-fold-block" id="${id}" open>`), `${id} is a fold, open in the page`);
++                assert.ok(r.text.includes(`document.getElementById("${id}")`), `${id} has the script that closes it on a phone`);
++            }
++            // The content of the folds stays in the page.
++            assert.match(r.text, /Where do the prices come from\?/);
++            assert.match(r.text, /Price a name/);
++            assert.ok(r.text.includes('<section class="sc-sec" id="faq"') || r.text.includes('aria-labelledby="sc-questions"'), 'the questions keep their section');
++        });
++
++        await check('the CSS guard: the folds are closed on a phone only, and the endings are one row', async () => {
++            const css = fs.readFileSync(path.join(__dirname, '..', 'public', 'css', 'domains.css'), 'utf8');
++            assert.match(css, /\.hm-fold-block > summary \{[^}]*min-height: 44px/, 'a fold is a 44 px target');
++            assert.match(css, /@media \(max-width: 599px\) \{\s*\.dm-board \{ display: flex; overflow-x: auto;/, 'the endings are one sideways row on a phone');
++            assert.match(css, /\.dm-board > li \{ flex: 0 0/, 'every ending keeps its place in the row');
++        });
++    } finally {
++        await t.close();
++    }
++    done();
++})().catch((e) => { console.error(e); process.exit(1); });