/* Product UI · semantic tokens. Legacy utilities remain supported by app.css. */
:root {
    --hub-bg: #101513; --hub-panel: #181f1b; --hub-raised: #202a24;
    --hub-text: #f1f5ee; --hub-muted: #b0bdb3; --hub-border: #38483d;
    --hub-accent: #c8ee91; --hub-on-accent: #182211; --hub-focus: #e2ffb8;
    --hub-success: #9be3bb; --hub-warning: #f4d18a; --hub-danger: #ffaca8;
    --hub-radius: 16px; --hub-shadow: 0 20px 60px #0003;
    --accent-primary: #c8ee91; --accent-light: #d9f7b0; --accent-dark: #b3d97e; --accent-rgb: 200 238 145;
}
html.classic {
    --accent-primary: #27533c; --accent-light: #336d4f; --accent-dark: #1d422f; --accent-rgb: 39 83 60;
    --hub-bg: #f4f6f1; --hub-panel: #ffffff; --hub-raised: #e9eee5;
    --hub-text: #1b2b22; --hub-muted: #526459; --hub-border: #b7c5ba;
    --hub-accent: #27533c; --hub-on-accent: #fff; --hub-focus: #27533c;
    --hub-success: #17643b; --hub-warning: #825311; --hub-danger: #ac302e;
}
.hub-ui, html.classic body.hub-ui { background: var(--hub-bg); color: var(--hub-text); }
html:has(.hub-public), body.hub-ui:has(.hub-public) { height: auto; min-height: 100%; overflow: visible; }
.hub-ui :where(button, a, input, select, textarea, summary):focus-visible { outline: 3px solid var(--hub-focus); outline-offset: 4px; }
.hub-ui [hidden] { display: none !important; }
.hub-ui .text-gray-500, .hub-ui .text-gray-600 { color: var(--hub-muted); }
.hub-ui .glass { border-color: var(--hub-border); box-shadow: none; backdrop-filter: none; }
.hub-ui .dh-input, .hub-ui .dh-textarea, .hub-ui .dh-editor-shell { background: var(--hub-raised); border-color: #74877a; color: var(--hub-text); }
.hub-ui .dh-input::placeholder, .hub-ui .dh-textarea::placeholder { color: var(--hub-muted); }
.hub-ui .dh-input:focus, .hub-ui .dh-textarea:focus { background: var(--hub-panel); outline: 2px solid var(--hub-focus); outline-offset: 2px; }
.hub-ui .app-custom-accent { min-width: 44px; min-height: 44px; border: 3px solid var(--hub-panel); }
.hub-ui .dh-input--error, .hub-ui .dh-textarea--error { border-color: var(--hub-danger); }
.hub-icon { width: 20px; height: 20px; flex-shrink: 0; }
.hub-assistant-toggle { min-width: 52px; min-height: 48px; gap: 8px; padding: 12px 16px; font-size: 12px; font-weight: 650; }
.hub-assistant-toggle svg { width: 20px; height: 20px; }
.hub-skip { position: fixed; top: -100px; left: 16px; z-index: 10001; padding: 12px 20px; background: var(--hub-accent); color: var(--hub-on-accent); border-radius: 8px; }
.hub-skip:focus { top: 12px; }
.hub-skip:not(:focus) { clip-path:inset(50%); width:1px; height:1px; overflow:hidden; padding:0; }
.hub-shell { display: flex; height: 100vh; height: 100dvh; overflow: hidden; }
.hub-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.hub-scroll { flex: 1; min-height: 0; overflow: auto; scroll-padding-top: 24px; }
.hub-content { padding: 32px; max-width: 1440px; margin-inline: auto; }
.hub-sidebar { position: relative; width: 240px; flex-shrink: 0; display: flex; flex-direction: column; background: var(--hub-panel); border-right: 1px solid var(--hub-border); z-index: 50; }
.hub-brand { height: 88px; display: flex; align-items: center; gap: 12px; padding: 20px; color: var(--hub-text); }
.dh-brand-icon { display: block; width: 100%; height: 100%; object-fit: contain; }
.hub-brand-mark { width: 42px; height: 42px; display: grid; place-items: center; flex-shrink: 0; }
.hub-brand strong { font-size: 14px; letter-spacing: -.4px; display: block; }
.hub-brand small { display: block; font-size: 10px; color: var(--hub-muted); margin-top: 3px; }
.hub-nav-links { flex: 1; overflow-y: auto; padding: 18px 12px; }
.hub-nav-links > .hub-eyebrow { padding: 0 12px; margin-bottom: 14px; font-size: 10px; }
.hub-nav-link { min-height: 46px; padding: 11px 12px; display: flex; gap: 12px; align-items: center; border-radius: 10px; color: var(--hub-muted); font-size: 13px; margin-bottom: 4px; text-decoration: none; transition: background 140ms, color 140ms; }
.hub-nav-link:hover { color: var(--hub-text); background: var(--hub-raised); }
.hub-nav-link.is-active { color: var(--hub-accent); background: color-mix(in srgb, var(--hub-accent) 10%, var(--hub-panel)); font-weight: 650; box-shadow: inset 3px 0 var(--hub-accent); }
.hub-nav-footer { padding: 12px; border-top: 1px solid var(--hub-border); }
.hub-nav-more { margin-top: 18px; }
.hub-nav-more summary { cursor: pointer; list-style: none; }
.hub-nav-more summary::-webkit-details-marker { display: none; }
.hub-nav-sub { padding: 4px 0 8px 44px; display: grid; gap: 2px; }
.hub-nav-sub a { padding: 10px 4px; font-size: 13px; color: var(--hub-muted); }
.hub-nav-sub a:hover { color: var(--hub-text); text-decoration: underline; }
.hub-nav-sub .hub-nav-admin { display:flex; align-items:center; justify-content:space-between; gap:8px; }
.hub-icon-button { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; color: var(--hub-muted); }
.hub-icon-button:hover { background: var(--hub-raised); color: var(--hub-text); }
.hub-collapse { position: absolute; right: -22px; top: 67px; background: var(--hub-panel); border: 1px solid var(--hub-border); }
.hub-collapse svg { transform: rotate(180deg); }
.hub-sidebar.is-collapsed { width: 76px; }
.hub-sidebar.is-collapsed .nav-text { display: none; }
.hub-sidebar.is-collapsed .hub-brand { padding: 16px; justify-content: center; }
.hub-sidebar.is-collapsed .hub-collapse svg { transform: none; }
.hub-sidebar.is-collapsed .hub-nav-sub { position: absolute; left: 76px; background: var(--hub-panel); padding: 12px 20px; width: 220px; border: 1px solid var(--hub-border); border-radius: 12px; box-shadow: var(--hub-shadow); }
.hub-header { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 32px; border-bottom: 1px solid var(--hub-border); flex-shrink: 0; }
.hub-header-start, .hub-header-actions { display: flex; align-items: center; gap: 10px; min-width: 0; }
.hub-breadcrumb { display: flex; gap: 10px; align-items: center; color: var(--hub-muted); font-size: 12px; min-width: 0; }
.hub-breadcrumb span:last-child { color: var(--hub-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hub-search-trigger { min-height: 40px; display: flex; align-items: center; gap: 10px; padding: 8px 12px; border: 1px solid var(--hub-border); border-radius: 10px; color: var(--hub-muted); font-size: 12px; }
.hub-search-trigger kbd { font: inherit; opacity: .8; margin-left: 16px; }
.hub-balance { font-size: 12px; color: var(--hub-muted); white-space: nowrap; }
.hub-balance strong { color: var(--hub-text); font-variant-numeric: tabular-nums; }
.hub-mobile-nav, .hub-mobile-toggle { display: none; }
.hub-page-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin: 10px 0 28px; }
.hub-eyebrow { font-size: 11px; font-weight: 650; letter-spacing: .13em; text-transform: uppercase; color: var(--hub-muted); }
.hub-title { font-size: clamp(28px, 3vw, 40px); font-weight: 650; letter-spacing: -1.4px; line-height: 1.15; margin: 10px 0 12px; }
.hub-lead { color: var(--hub-muted); font-size: 15px; line-height: 1.7; max-width: 65ch; }
.hub-section-title { font-size: 19px; font-weight: 650; letter-spacing: -.45px; }
.hub-btn { min-height: 44px; padding: 11px 18px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; border-radius: 10px; border: 1px solid var(--hub-border); background: var(--hub-raised); color: var(--hub-text); font: inherit; font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none; transition: background 140ms, transform 140ms; }
.hub-btn:hover:not(:disabled) { background: color-mix(in srgb, var(--hub-raised) 85%, var(--hub-text)); }
.hub-btn:active:not(:disabled) { transform: translateY(1px); }
.hub-btn-primary { background: var(--hub-accent); border-color: var(--hub-accent); color: var(--hub-on-accent); }
.hub-btn-primary:hover:not(:disabled) { background: color-mix(in srgb, var(--hub-accent) 88%, white); }
.hub-btn-quiet { background: transparent; }
.hub-btn-danger { color: var(--hub-danger); }
.hub-btn:disabled { opacity: .55; cursor: not-allowed; }
.hub-partner-invite { display:flex; gap:14px; margin-top:24px; padding:20px; border:1px solid var(--hub-border); border-radius:14px; background:linear-gradient(120deg,var(--hub-raised),var(--hub-panel)); text-decoration:none; }
.hub-partner-invite strong { display:block; color:var(--hub-text); font-size:14px; }
.hub-partner-invite small { display:block; color:var(--hub-muted); font-size:12px; line-height:1.7; margin-top:7px; }
.hub-partner-invite b { display:block; color:var(--hub-accent); font-size:12px; margin-top:12px; }
.hub-partner-mark { flex-shrink:0; display:grid; place-items:center; width:35px; height:35px; border-radius:10px; background:var(--hub-accent); color:var(--hub-on-accent); font-size:22px; }
.hub-link { color: var(--hub-accent); text-decoration: underline; text-underline-offset: 4px; font-size: 13px; }
.hub-card { border: 1px solid var(--hub-border); border-radius: var(--hub-radius); background: var(--hub-panel); padding: 24px; min-width: 0; }
.hub-grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.hub-grid-three { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.hub-choice { display: flex; flex-direction: column; gap: 14px; }
.hub-choice h2 { font-size: 22px; font-weight: 600; letter-spacing: -.6px; }
.hub-choice p { color: var(--hub-muted); font-size: 13px; line-height: 1.65; }
.hub-choice .hub-btn { align-self: flex-start; margin-top: auto; }
.hub-choice-icon { width: 44px; height: 44px; border: 1px solid var(--hub-border); background: var(--hub-raised); border-radius: 12px; display: grid; place-items: center; color: var(--hub-accent); }
.hub-choice-meta { padding-top: 12px; border-top: 1px solid var(--hub-border); font-size: 12px; color: var(--hub-muted); }
.hub-resume { display: flex; align-items: center; gap: 18px; padding: 20px 24px; border: 1px solid var(--hub-border); border-left: 3px solid var(--hub-accent); border-radius: 12px; background: var(--hub-panel); margin-bottom: 24px; }
.hub-resume > div { flex: 1; min-width: 0; }
.hub-resume strong { display: block; margin: 5px 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.hub-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin: 28px 0 20px; }
.hub-filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.hub-input { padding: 11px 13px; min-height: 44px; border: 1px solid var(--hub-border); border-radius: 10px; background: var(--hub-bg); color: var(--hub-text); font-size: 14px; max-width: 100%; }
.hub-input::placeholder { color: var(--hub-muted); }
.hub-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 9px; border-radius: 7px; border: 1px solid var(--hub-border); font-size: 11px; font-weight: 550; color: var(--hub-muted); }
.hub-badge[data-state="Running"], .hub-badge[data-state="Built"], .hub-badge[data-state="Completed"] { color: var(--hub-success); }
.hub-badge[data-state="Building"], .hub-badge[data-state="Approved"], .hub-badge[data-state="PendingApproval"] { color: var(--hub-warning); }
.hub-badge[data-state="BuildFailed"], .hub-badge[data-state="Rejected"], .hub-badge[data-state="Failed"] { color: var(--hub-danger); }
.hub-empty { text-align: center; padding: 40px 20px; color: var(--hub-muted); border: 1px dashed var(--hub-border); border-radius: 16px; margin: 24px 0; }
.hub-empty h2, .hub-empty h3 { font-size: 20px; color: var(--hub-text); margin-bottom: 10px; }
.hub-help { margin: 20px 0; padding: 14px 18px; display: flex; gap: 12px; align-items: flex-start; background: var(--hub-raised); border-radius: 10px; font-size: 13px; color: var(--hub-muted); line-height: 1.65; }
.hub-tabs { display: flex; gap: 6px; overflow-x: auto; border-bottom: 1px solid var(--hub-border); padding: 0 0 10px; margin: 20px 0; }
.hub-tabs a, .hub-tabs button { padding: 10px 14px; min-height: 44px; white-space: nowrap; font-size: 13px; color: var(--hub-muted); border-radius: 8px; }
.hub-tabs [aria-current="page"], .hub-tabs [aria-selected="true"] { background: var(--hub-raised); color: var(--hub-text); }
.hub-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 24px 0; }
.hub-stat { padding: 22px; background: var(--hub-panel); border: 1px solid var(--hub-border); border-radius: 14px; }
.hub-stat strong { display: block; font-size: 30px; font-weight: 600; letter-spacing: -.8px; margin: 12px 0 8px; font-variant-numeric: tabular-nums; }
.hub-stat p { color: var(--hub-muted); font-size: 12px; line-height: 1.6; }
.hub-data { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; }
.hub-data dt { color: var(--hub-muted); font-size: 12px; margin-bottom: 5px; }
.hub-data dd { font-size: 14px; overflow-wrap: anywhere; }
.hub-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.hub-status-message { font-size: 13px; line-height: 1.65; margin-top: 12px; color: var(--hub-muted); }
.hub-status-message.is-error { color: var(--hub-danger); }
.hub-table-wrap { overflow-x: auto; border: 1px solid var(--hub-border); border-radius: 14px; }
.hub-table { width: 100%; border-collapse: collapse; font-size: 13px; text-align: left; }
.hub-table th { color: var(--hub-muted); font-size: 11px; font-weight: 600; background: var(--hub-raised); }
.hub-table th, .hub-table td { padding: 16px 20px; border-bottom: 1px solid var(--hub-border); }
.hub-table tr:last-child td { border-bottom: 0; }
.hub-table tr:hover td { background: var(--hub-raised); }
.hub-table td:last-child { font-variant-numeric: tabular-nums; }
.hub-table.is-compact th, .hub-table.is-compact td { padding: 10px 16px; }
.hub-dialog { padding: 0; background: var(--hub-panel); color: var(--hub-text); border: 1px solid var(--hub-border); border-radius: 18px; width: min(640px, calc(100% - 32px)); max-height: 88dvh; box-shadow: var(--hub-shadow); }
.hub-dialog::backdrop { background: #030906b3; backdrop-filter: blur(4px); }
.hub-dialog-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 20px 24px; border-bottom: 1px solid var(--hub-border); }
.hub-dialog-body { padding: 24px; }
.hub-command-input { border: 0; width: 100%; outline: none; background: transparent; font-size: 16px; color: var(--hub-text); }
.hub-command-list { padding: 10px; max-height: 50dvh; overflow-y: auto; }
.hub-command-list a { display: flex; padding: 13px 16px; border-radius: 8px; font-size: 14px; color: var(--hub-text); }
.hub-command-list a:hover, .hub-command-list a:focus { background: var(--hub-raised); }
.hub-command-hint { padding: 12px 24px; color: var(--hub-muted); font-size: 11px; border-top: 1px solid var(--hub-border); }
/* Public product demonstration */
.hub-public { background: var(--hub-bg); color: var(--hub-text); }
.hub-public-header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 12px max(24px, calc((100vw - 1280px)/2)); border-bottom: 1px solid var(--hub-border); background: var(--hub-bg); position: sticky; top: 0; z-index: 40; }
.hub-public-header .hub-brand { height: auto; padding: 0; }
.hub-public-links { display: flex; align-items: center; gap: 26px; color: var(--hub-muted); font-size: 13px; }
.hub-public-links a:hover { color: var(--hub-text); }
.hub-story { max-width: 1280px; margin: auto; padding: 82px 32px; scroll-margin-top: 90px; border-bottom: 1px solid var(--hub-border); }
.hub-story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hub-story h1 { font-size: clamp(38px, 4.7vw, 64px); font-weight: 600; letter-spacing: -2.8px; line-height: 1.08; margin: 20px 0 26px; }
.hub-story h1 em { color: var(--hub-accent); font-style: normal; }
.hub-story h2 { font-size: clamp(29px, 3vw, 42px); font-weight: 600; letter-spacing: -1.5px; line-height: 1.18; margin: 18px 0; }
.hub-story-copy { color: var(--hub-muted); font-size: 16px; line-height: 1.8; }
.hub-story-number { color: var(--hub-accent); font-family: 'Fira Code', monospace; font-size: 12px; margin-right: 12px; }
.hub-story-nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 36px; }
.hub-story-nav a { color: var(--hub-muted); font-size: 12px; padding: 10px 0; }
.hub-story-index { max-width: 1216px; margin: 0 auto; padding: 18px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.hub-story-index a { color: var(--hub-muted); font-size: 12px; padding: 8px 12px; border-radius: 7px; }
.hub-story-index a[aria-current="step"] { color: var(--hub-accent); background: var(--hub-panel); }
.hub-demo { border: 1px solid var(--hub-border); border-radius: 18px; background: var(--hub-panel); box-shadow: var(--hub-shadow); overflow: hidden; }
.hub-demo-top { padding: 14px 18px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--hub-border); color: var(--hub-muted); font-size: 10px; }
.hub-demo-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--hub-border); }
.hub-demo-top > span:last-child { margin-left: auto; }
.hub-demo-content { padding: 26px; }
.hub-demo-content h3 { font-size: 23px; letter-spacing: -.7px; font-weight: 600; margin: 10px 0 6px; }
.hub-demo-content p { font-size: 12px; line-height: 1.7; color: var(--hub-muted); }
.hub-demo-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 22px 0; }
.hub-demo-stats > div { background: var(--hub-raised); padding: 15px 10px; border-radius: 10px; }
.hub-demo-stats strong { font-size: 24px; display: block; font-weight: 600; }
.hub-demo-stats small { font-size: 10px; color: var(--hub-muted); }
.hub-demo-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 14px 0; border-top: 1px solid var(--hub-border); font-size: 12px; }
.hub-demo-row > span:not(.hub-demo-tag):not(.hub-badge) { flex: 1; }
.hub-demo-tag { color: var(--hub-success); font-size: 10px; background: var(--hub-raised); padding: 5px 8px; border-radius: 6px; }
.hub-demo-bubble { padding: 16px; border-radius: 12px; font-size: 13px; line-height: 1.75; background: var(--hub-raised); margin: 16px 0; }
.hub-demo-bubble.is-ai { border-left: 2px solid var(--hub-accent); }
.hub-demo-caption { font-size: 11px; color: var(--hub-muted); text-align: center; padding: 14px; }
.hub-timeline { list-style: none; margin: 18px 0; padding: 0; }
.hub-timeline li { display: flex; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--hub-border); font-size: 13px; align-items: flex-start; }
.hub-timeline li > .hub-icon { color: var(--hub-accent); }
.hub-timeline p { color: var(--hub-muted); margin-top: 5px; font-size: 12px; }
.hub-public-footer { max-width: 1280px; margin: auto; padding: 28px 32px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; font-size: 12px; color: var(--hub-muted); }
/* Existing workspaces use the same rhythm without changing their DOM contracts. */
.hub-ui #ideas-hero { min-height: 0; }
.hub-ui #new-idea-form { margin-top: 24px; }
.hub-ui #ideas-dashboard { margin-top: 30px; }
.hub-ui #ideas-dashboard > .grid { gap: 18px; }
.hub-ui #ideas-dashboard > .grid > div { background: var(--hub-panel); border-color: var(--hub-border); }
.hub-ui .proposal-wizard { max-width: 1000px; margin: auto; }
.hub-ui #wizard-step-report { text-align: left; }
.hub-ui #wizard-step-report [id^="report-"] { line-height: 1.8; }
.hub-ui #wizard-step-report p.text-xs { font-size: 14px; }
.hub-ui #bc-shell { min-height: 0; height: auto; }
.hub-ui #bc-step-chat { min-height: 650px; }
.hub-ui #bc-step-chat > div > .glass { background: var(--hub-panel); }
.hub-ui #app-custom-error { color: var(--hub-danger); }
.hub-ui #bc-messages { min-height: 260px; max-height: 55dvh; }
.hub-ui #bc-coverage-fab { bottom: 90px; }
.hub-review { margin-top: 20px; }
.hub-review-content { max-width: 75ch; line-height: 1.8; font-size: 14px; }
.hub-review-content p { margin-bottom: 12px; }
.hub-review #app-custom-error { font-size: 13px; }
.hub-review-actions { position: sticky; bottom: 0; padding: 16px 0; background: var(--hub-panel); display: flex; justify-content: flex-end; gap: 10px; border-top: 1px solid var(--hub-border); margin-top: 20px; }
.hub-ui .hub-app-frame { height: calc(100dvh - 180px); min-height: 420px; }
.hub-ui #app-frame { background: white; }
@media (max-width: 1100px) {
    .hub-header { padding-inline: 24px; }
    .hub-search-trigger span, .hub-search-trigger kbd, .hub-balance > span { display: none; }
    .hub-story-grid { gap: 32px; }
    .hub-public-links { gap: 16px; }
}
@media (max-width: 767px) {
    .hub-ui #chat-widget { bottom: 82px; right: 16px !important; }
    .hub-assistant-toggle span { display: none; }
    .hub-public ~ #chat-widget, .hub-ui:has(.hub-public) #chat-widget { bottom: 20px; }
    .hub-sidebar { position: fixed; top: 0; left: 0; bottom: 0; width: min(290px, 85vw); transform: translateX(-105%); transition: transform 160ms; }
    .hub-sidebar.is-open { transform: none; }
    .hub-sidebar.is-collapsed { width: min(290px, 85vw); }
    .hub-sidebar.is-collapsed .nav-text { display: initial; }
    .hub-sidebar.is-collapsed .hub-brand { justify-content: flex-start; }
    .hub-sidebar.is-collapsed .hub-nav-sub { position: static; width: auto; padding-left: 44px; border: 0; }
    .hub-nav-backdrop { position: fixed; inset: 0; background: #0008; z-index: 49; }
    .hub-collapse { display: none; }
    .hub-mobile-toggle { display: inline-flex; }
    .hub-header { height: 64px; padding: 0 14px; gap: 8px; }
    .hub-header-actions { gap: 4px; }
    .hub-breadcrumb a, .hub-breadcrumb .hub-icon, .hub-balance { display: none; }
    .hub-content { padding: 22px 16px 90px; }
    .hub-mobile-nav { position: fixed; bottom: 0; left: 0; right: 0; display: grid; grid-template-columns: repeat(4, 1fr); background: var(--hub-panel); border-top: 1px solid var(--hub-border); padding: 6px 8px max(6px, env(safe-area-inset-bottom)); z-index: 35; }
    .hub-mobile-nav a { min-height: 52px; display: flex; flex-direction: column; gap: 4px; align-items: center; justify-content: center; font-size: 10px; color: var(--hub-muted); }
    .hub-mobile-nav a[aria-current="page"] { color: var(--hub-accent); }
    .hub-mobile-nav.hub-mobile-nav-five { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .hub-ui:has(#new-idea-form:not(.hidden)) .hub-mobile-nav, .hub-ui:has(#wizard-step-phase:not(.hidden)) .hub-mobile-nav, .hub-ui:has(#bc-step-chat:not(.hidden)) .hub-mobile-nav { display: none; }
    .hub-ui:has(#new-idea-form:not(.hidden)) .hub-content, .hub-ui:has(#bc-step-chat:not(.hidden)) .hub-content { padding-bottom: 24px; }
    .hub-grid-two, .hub-grid-three, .hub-stats, .hub-story-grid { grid-template-columns: 1fr; }
    .hub-grid-two, .hub-grid-three { gap: 14px; }
    .hub-choice { gap: 9px; padding: 18px; }
    .hub-choice h2 { font-size: 19px; }
    .hub-choice-icon { display: none; }
    .hub-page-heading { align-items: flex-start; margin-bottom: 20px; }
    .hub-page-heading > .hub-link { display: none; }
    .hub-resume { padding: 16px; gap: 10px; }
    .hub-resume .hub-icon { display: none; }
    .hub-resume .hub-btn { padding: 10px; }
    .hub-input { font-size: 16px; }
    .hub-filters { width: 100%; }
    .hub-filters input { flex: 1; min-width: 120px; }
    .hub-dialog { max-height: 90dvh; }
    .hub-card, .hub-dialog-body { padding: 20px; }
    .hub-table td, .hub-table th { padding: 12px; }
    .hub-public-header { padding: 12px 16px; gap: 10px; }
    .hub-public-header .hub-brand strong { font-size: 12px; }
    .hub-public-header .hub-brand small, .hub-public-links { display: none; }
    .hub-public-header .hub-brand-mark { width: 34px; height: 34px; }
    .hub-public-header .hub-btn { padding: 10px 12px; font-size: 12px; }
    .hub-story { padding: 42px 20px; }
    .hub-story h1 { letter-spacing: -1.6px; font-size: 40px; }
    .hub-story h2 { letter-spacing: -1px; }
    .hub-story-copy { font-size: 15px; }
    .hub-story-index { padding: 14px; gap: 2px; justify-content: flex-start; }
    .hub-story-index a { padding: 8px; font-size: 11px; }
    .hub-demo-content { padding: 20px; }
    .hub-demo-content h3 { font-size: 20px; }
    .hub-story-grid { gap: 28px; }
    .hub-story-nav { margin-top: 24px; }
    .hub-public-footer { padding: 24px 20px; }
    .hub-ui #bc-step-chat { min-height: 0; }
    .hub-ui #bc-messages { max-height: 52dvh; }
    .hub-ui #bc-step-chat > div { padding-inline: 0; }
    .hub-ui #bc-step-select > div { padding-inline: 0; padding-top: 12px; }
    .hub-ui .hub-app-frame { min-height: 55dvh; height: 65dvh; }
}
@media (prefers-reduced-motion: reduce) {
    .hub-ui *, .hub-ui *::before, .hub-ui *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; transition-duration: .001ms !important; }
}