/* css/personalised.css — "Questions for your test" pages (/personalised, A Level
   personalised page) and the builder (js/personalised-builder.js). Tokens only
   (css/tokens.css); no new colours or fonts. */
.ps { font-family: var(--ibm-font); color: var(--ibm-ink); background: #fff; }
.ps *, .ps *::before, .ps *::after { box-sizing: border-box; }
.ps-wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.ps-hero { padding-top: 28px; padding-bottom: 8px; }
.ps-hero h1 { font: 800 2.1rem/1.15 var(--ibm-font); letter-spacing: -0.02em; color: var(--ibm-dark); margin: 0 0 10px; }
.ps-lede { font-size: 1.08rem; color: var(--ibm-ink-2); margin: 0 0 12px; max-width: 62ch; line-height: 1.55; }
.ps-price { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 18px; padding: 0; list-style: none; font-size: var(--ibm-text-sm); color: var(--ibm-ink-2); }
.ps-price li { display: flex; align-items: center; gap: 6px; }
.ps-price li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ibm-primary); flex: none; }
.ps-price strong { color: var(--ibm-dark); }
.ps-crumbs { padding-top: 14px; }
.ps-sec { padding-top: 36px; padding-bottom: 8px; }
.ps-sec h2 { font: 700 1.4rem/1.3 var(--ibm-font); color: var(--ibm-dark); margin: 0 0 14px; letter-spacing: -0.01em; }
.ps-get { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 0; padding: 0; list-style: none; }
.ps-get li { background: var(--ibm-surface-2); border: 1px solid var(--ibm-line); border-radius: var(--ibm-r-card); padding: 16px; font-size: var(--ibm-text-sm); color: var(--ibm-ink-2); line-height: 1.5; }
.ps-get li strong { display: block; color: var(--ibm-dark); font-size: var(--ibm-text-md); margin-bottom: 4px; }
.ps-plans { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ps-plan { border: 1px solid var(--ibm-line-strong); border-radius: var(--ibm-r-card); padding: 18px; background: #fff; }
.ps-plan .amt { font: 800 1.9rem/1.1 var(--ibm-font); color: var(--ibm-dark); letter-spacing: -0.02em; }
.ps-plan .amt small { font-size: var(--ibm-text-sm); font-weight: 500; color: var(--ibm-muted); letter-spacing: 0; }
.ps-plan p { margin: 6px 0 0; font-size: var(--ibm-text-sm); color: var(--ibm-ink-2); }
.ps-faq details { border-bottom: 1px solid var(--ibm-line); padding: 14px 0; }
.ps-faq summary { cursor: pointer; font-weight: 700; color: var(--ibm-dark); min-height: 28px; }
.ps-faq details p { margin: 8px 0 0; color: var(--ibm-ink-2); line-height: 1.6; }
.ps-faq a, .ps-sec a { color: var(--ibm-primary); }
.ps-foot-note { font-size: var(--ibm-text-xs); color: var(--ibm-muted); margin: 18px 0 40px; }

/* ---- builder ---- */
.pb-card { background: #fff; border: 1px solid var(--ibm-line); border-radius: var(--ibm-r-card); box-shadow: var(--ibm-shadow); padding: 22px; margin: 0 0 16px; }
.pb-card:focus { outline: none; }
.pb-step { border: 0; padding: 0; margin: 0 0 20px; min-width: 0; }
.pb-step legend { display: flex; align-items: center; gap: 10px; font: 700 var(--ibm-text-md)/1.3 var(--ibm-font); color: var(--ibm-dark); padding: 0; margin: 0 0 10px; }
.pb-n { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; background: var(--ibm-primary-soft); color: var(--ibm-primary); font-size: var(--ibm-text-sm); font-weight: 800; flex: none; }
.pb-hint, .pb-sub { margin: -4px 0 10px; font-size: var(--ibm-text-sm); color: var(--ibm-muted); }
.pb-sub { margin: 14px 0 8px; font-weight: 600; color: var(--ibm-ink-2); }
.pb-sel { margin: 8px 0 0; font-size: var(--ibm-text-sm); color: var(--ibm-ink-2); min-height: 1.2em; }
.pb-seg { display: flex; flex-wrap: wrap; gap: 8px; }
.pb-seg label { position: relative; }
.pb-seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.pb-seg span { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border: 1px solid var(--ibm-line-strong); border-radius: var(--ibm-r-pill); font: 600 var(--ibm-text-sm)/1.2 var(--ibm-font); color: var(--ibm-ink-2); background: #fff; cursor: pointer; transition: border-color .15s, background .15s; }
.pb-seg label:hover span { border-color: var(--ibm-primary); }
.pb-seg input:checked + span { background: var(--ibm-primary); border-color: var(--ibm-primary); color: #fff; }
.pb-seg input:focus-visible + span { box-shadow: var(--ibm-focus); }
.pb-picker { min-height: 120px; }
.pb-ask .pb-picker { min-height: 0; }
.pb-go { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; padding-top: 4px; }
.pb-big { min-height: 48px; padding: 12px 22px; font-size: var(--ibm-text-md); }
.pb-go-note { font-size: var(--ibm-text-sm); color: var(--ibm-muted); }
.pb-credits { background: var(--ibm-green-soft); color: var(--ibm-green); border-radius: var(--ibm-r); padding: 10px 14px; margin: 0 0 16px; font-size: var(--ibm-text-sm); }
.pb-eyebrow { margin: 0 0 4px; font: 700 var(--ibm-text-xs)/1.2 var(--ibm-font); letter-spacing: .06em; text-transform: uppercase; color: var(--ibm-primary); }
.pb-h { font: 800 1.35rem/1.25 var(--ibm-font); color: var(--ibm-dark); margin: 0 0 14px; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.pb-h2 { font: 700 1.2rem/1.3 var(--ibm-font); color: var(--ibm-dark); margin: 8px 0 10px; }
.pb-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0 0 16px; }
.pb-facts div { background: var(--ibm-surface-2); border-radius: var(--ibm-r); padding: 10px 12px; font-size: var(--ibm-text-sm); color: var(--ibm-muted); }
.pb-facts b { display: block; font-size: 1.4rem; color: var(--ibm-dark); line-height: 1.2; }
.pb-cover { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 6px; }
.pb-cover li { display: flex; align-items: center; gap: 10px; font-size: var(--ibm-text-sm); padding: 6px 0; border-bottom: 1px solid var(--ibm-line); }
.pb-tick { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: var(--ibm-green-soft); color: var(--ibm-green); font-weight: 800; font-size: 0.8rem; flex: none; }
.pb-cover li.is-short .pb-tick { background: var(--ibm-amber-soft); color: var(--ibm-amber); }
.pb-cl { flex: 1; min-width: 0; color: var(--ibm-ink); }
.pb-cn { color: var(--ibm-muted); white-space: nowrap; }
.pb-cover li.is-short .pb-cn { color: var(--ibm-amber); }
.pb-q1, .pb-qs li, .pb-scheme li { border: 1px solid var(--ibm-line); border-radius: var(--ibm-r); padding: 14px; background: #fff; }
.pb-qh { display: flex; justify-content: space-between; gap: 10px; font: 700 var(--ibm-text-sm)/1.3 var(--ibm-font); color: var(--ibm-dark); margin-bottom: 8px; }
.pb-qh span + span { color: var(--ibm-muted); font-weight: 600; }
.pb-qp { font-size: 1rem; line-height: 1.6; overflow-x: auto; overflow-wrap: anywhere; }
.pb-qp p { margin: 0 0 8px; }
.pb-qp img, .pb-qp svg:not([role="img"]) { max-width: 100%; height: auto; }
.pb-qp mjx-container { max-width: 100%; overflow-x: auto; overflow-y: hidden; }
.pb-more { margin: 12px 0 16px; color: var(--ibm-ink-2); font-size: var(--ibm-text-sm); }
.pb-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; }
.pb-thin { background: var(--ibm-amber-soft); border-radius: var(--ibm-r); padding: 14px 16px; color: var(--ibm-ink); }
.pb-thin p { margin: 0 0 10px; line-height: 1.55; }
.pb-err { color: var(--ibm-red); background: var(--ibm-red-soft); border-radius: var(--ibm-r); padding: 10px 14px; margin: 12px 0 0; }
.pb-qs, .pb-scheme ol { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 10px; }
.pb-scheme { margin-top: 14px; }
.pb-scheme summary { cursor: pointer; font-weight: 700; color: var(--ibm-primary); min-height: 44px; display: flex; align-items: center; }
.pb-next { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--ibm-line); }
.pb-next .ibm-button { min-height: 44px; }
.pb-mine { margin: 8px 0 16px; }
.pb-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.pb-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; border: 1px solid var(--ibm-line); border-radius: var(--ibm-r); padding: 10px 14px; background: #fff; }
.pb-list li div { min-width: 0; }
.pb-list strong { display: block; color: var(--ibm-dark); font-size: var(--ibm-text-sm); overflow-wrap: anywhere; }
.pb-list span { font-size: var(--ibm-text-xs); color: var(--ibm-muted); }
.pb-list .ibm-button { min-height: 44px; flex: none; }
@media screen { .pb-print { position: absolute; left: -10000px; top: 0; width: 210mm; } }

@media (max-width: 640px) {
  .ps-hero { padding-top: 18px; }
  .ps-hero h1 { font-size: 1.6rem; }
  .ps-lede { font-size: 1rem; }
  .ps-get, .ps-plans { grid-template-columns: 1fr; }
  .pb-card { padding: 16px; }
  .pb-big { width: 100%; }
  .pb-facts b { font-size: 1.2rem; }
}

/* Topic list upload / paste (psReadTopicList) */
.pb-tl { margin: 0 0 12px; border: 1px solid var(--ibm-line, #d6dfec); border-radius: 10px; padding: 10px 12px; background: var(--ibm-surface-2, #f8fafd); }
.pb-tl summary { cursor: pointer; font-weight: 600; color: var(--ibm-ink-2); min-height: 44px; display: flex; align-items: center; }
.pb-tl-body { display: grid; gap: 8px; margin-top: 8px; }
.pb-tl-file, .pb-tl-paste { font-size: var(--ibm-text-sm); font-weight: 600; color: var(--ibm-ink-2); }
.pb-tl-file input { display: block; margin-top: 6px; max-width: 100%; }
.pb-tl textarea { width: 100%; box-sizing: border-box; font: inherit; font-size: var(--ibm-text-sm); padding: 8px; border: 1px solid var(--ibm-line, #d6dfec); border-radius: 8px; resize: vertical; }
.pb-tl #pb-list-go { justify-self: start; }
.pb-tl-note { margin: 0; }
.pb-tl-out { font-size: var(--ibm-text-sm); }
.pb-tl-lines { margin: 6px 0; padding-left: 18px; }
.pb-tl-lines span { color: var(--ibm-muted); }

/* Mix choice (weighted to weak spots) */
.pb-seg--stack { flex-direction: column; align-items: stretch; }
.pb-seg--stack span { width: 100%; box-sizing: border-box; border-radius: 12px; line-height: 1.3; }
.pb-mix-line { margin: 8px 0 0; }
.pb-mix-out { margin: 0 0 14px; padding: 10px 12px; border-radius: 10px; background: var(--ibm-surface-2, #f4f7fc); font-size: var(--ibm-text-sm); }
.pb-mix-out p { margin: 0; }
.pb-why summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 600; color: var(--ibm-primary); }
.pb-why ul { margin: 4px 0 8px; padding-left: 18px; }
.pb-why li span { color: var(--ibm-muted); }

/* Teacher: send to your class (wsTopicListPlan → wsAssign) */
.pb-class { display: grid; gap: 10px; }
.pb-class .pb-h2 { margin: 0; }
.pb-class .pb-hint { margin: 0; }
.pb-class-pick { display: grid; gap: 6px; font-size: var(--ibm-text-sm); font-weight: 600; color: var(--ibm-ink-2); }
.pb-class-pick select, .pb-class-pick input { min-height: 44px; font: inherit; font-weight: 400; padding: 8px 10px; border: 1px solid var(--ibm-line-strong); border-radius: 10px; background: #fff; max-width: 100%; box-sizing: border-box; }
.pb-class-out { font-size: var(--ibm-text-sm); display: grid; gap: 10px; }
.pb-class-out p { margin: 0; }
.pb-class-lines { margin: 0; padding-left: 18px; display: grid; gap: 4px; }
.pb-class-done { padding: 10px 12px; border-radius: 10px; background: #e9f7ee; }