/* ==========================================================================
   BOSTON STUDY HUB ACADEMY — Band 8–9 track (#/band9) and Speaking partner (#/partner)
   Uses the theme tokens from styles.css / theme-light.css. Touch targets >= 44px,
   single column below 720px, no horizontal scroll at 360px.
   ========================================================================== */

/* ---------- shared ---------- */
.b9 .btn, .pt .btn { min-height: 44px; }
.b9 .btn-sm, .pt .btn-sm { min-height: 44px; padding: 8px 12px; }
.b9 h2.b9-h2, .pt h2.pt-h2 { font-size: 18px; margin: 22px 0 10px; color: var(--text, inherit); }
.pt h2.pt-h2 { margin: 0; }
.b9 .b9-sub { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim-2); margin: 14px 0 6px; font-weight: 700; }
.b9 kbd, .pt kbd { font-family: var(--mono, monospace); font-size: 11.5px; padding: 1px 6px; border: 1px solid var(--line-2); border-radius: 5px; background: var(--panel-2, transparent); }
.b9 :focus-visible, .pt :focus-visible { outline: 3px solid var(--brand, var(--mint)); outline-offset: 2px; }

/* ---------- band 9 tabs ---------- */
.b9-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 16px; }
.b9-tabs a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 14px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--dim); text-decoration: none; font-size: 13.5px; font-weight: 600; background: var(--panel); }
.b9-tabs a.on { background: var(--mint-soft); color: var(--mint-2, var(--mint)); border-color: var(--mint); }

/* ---------- levels ---------- */
.b9-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.b9-crit h3 { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 15.5px; }
.b9-ladder { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.b9-step { border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; background: var(--panel-2, transparent); }
.b9-step b { display: block; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 4px; }
.b9-step p { margin: 0; font-size: 12.8px; line-height: 1.5; color: var(--dim); }
.b9-step.s7 b { color: var(--amber); } .b9-step.s8 b { color: var(--sky); } .b9-step.s9 b { color: var(--mint-2, var(--mint)); }
.b9-step.s9 { border-color: var(--mint); }
.b9-obs { margin: 0; padding-left: 18px; font-size: 13.2px; line-height: 1.55; }
.b9-obs li { margin-bottom: 4px; }
.b9-ex { margin-top: 12px; border-top: 1px dashed var(--line-2); padding-top: 10px; display: grid; gap: 6px; }
.b9-ex-row { display: flex; gap: 8px; align-items: flex-start; }
.b9-ex-row p { margin: 0; font-size: 13.4px; line-height: 1.55; }
.b9-ex-tag { flex: none; display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 2px 7px; border-radius: 6px; background: var(--amber-soft); color: var(--amber); }
.b9-ex-row.b9r .b9-ex-tag { background: var(--mint-soft); color: var(--mint-2, var(--mint)); }
.b9-ex-row.b7 p { color: var(--dim); }
.b9-ex-why { margin: 2px 0 0; font-size: 12.8px; color: var(--dim); }
.b9-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 8px; }
.b9-table th, .b9-table td { border: 1px solid var(--line); padding: 6px 9px; text-align: left; }
.b9-table th { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim-2); }

/* ---------- drills hub ---------- */
.b9-cats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.b9-cat { display: flex; gap: 12px; align-items: center; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: var(--panel); }
.b9-cat-main { flex: 1; min-width: 0; display: grid; gap: 4px; }
.b9-cat-main b { font-size: 14px; }
.b9-meter { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; }
.b9-meter i { display: block; height: 100%; background: var(--mint); border-radius: 99px; }
.b9-mixed-card .btn { margin-top: 4px; }

/* ---------- drill items ---------- */
.b9-q .opt { min-height: 44px; align-items: center; }
.b9-q .opt input { width: 18px; height: 18px; flex: none; margin-top: 0; }
.b9-step-h { font-size: 13.6px; font-weight: 600; margin: 10px 0 6px; }
.b9-ctx { margin: 0 0 6px; padding: 8px 11px; border-radius: 8px; background: var(--sky-soft); font-size: 13.4px; }
.b9-orig { margin: 0 0 4px; font-size: 14px; display: flex; gap: 8px; align-items: flex-start; }
.b9-fix-sent { font-size: 15px; line-height: 1.9; margin: 2px 0 4px; }
.b9-seg { border-bottom: 2px solid var(--line-2); padding: 0 2px; }
.b9-seg sup { font-size: 10px; font-weight: 700; color: var(--violet); margin-right: 2px; }
.b9-q.is-right { border-color: var(--mint); }
.b9-q.is-wrong { border-color: var(--rose); }
.b9 .explain { color: var(--text, inherit); }
.b9-result { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; margin-top: 14px; padding: 14px; border: 1px solid var(--line-2); border-radius: 12px; }
.b9-result.ok { border-color: var(--mint); background: var(--mint-soft); }

/* ---------- upgrade studio ---------- */
.b9-studio { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 14px; align-items: start; }
.b9-text { width: 100%; min-height: 220px; font-size: 14.5px; line-height: 1.65; resize: vertical; box-sizing: border-box; }
.b9-hltext { font-size: 14.6px; line-height: 1.95; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel-2, transparent); overflow-wrap: anywhere; }
.b9-hl { position: relative; padding: 0 2px; border-radius: 4px; color: inherit; cursor: help; }
.b9-k-connector { background: #E8DDFF; box-shadow: inset 0 -2px 0 var(--violet); }
.b9-k-vague { background: #FFF0C7; box-shadow: inset 0 -2px 0 var(--amber); }
.b9-k-contraction { background: #FFE0E3; box-shadow: inset 0 -2px 0 var(--rose); }
.b9-k-absolute { background: #FFE2CC; box-shadow: inset 0 -2px 0 #D9480F; }
.b9-k-repeat { background: #DDEBFF; box-shadow: inset 0 -2px 0 var(--sky); }
.b9-k-startconj { background: #E3F6EE; box-shadow: inset 0 -2px 0 var(--mint); }
.b9-sent.b9-s-long { text-decoration: underline wavy var(--amber); text-underline-offset: 4px; }
.b9-sent.b9-s-conclusion { text-decoration: underline dashed var(--rose); text-underline-offset: 4px; }
.b9-badge { font-size: 10px; font-weight: 700; margin-left: 3px; padding: 1px 5px; border-radius: 6px; background: var(--amber-soft); color: var(--amber); cursor: help; position: relative; }
.b9-badge.b9-k-conclusion { background: var(--rose-soft); color: var(--rose); box-shadow: none; }
.b9-badge.b9-k-long { box-shadow: none; }
.b9-hl[data-tip]:hover::after, .b9-hl[data-tip]:focus::after, .b9-badge[data-tip]:hover::after, .b9-badge[data-tip]:focus::after {
  content: attr(data-tip); position: absolute; left: 0; top: calc(100% + 6px); z-index: 30; width: max-content; max-width: min(300px, 80vw);
  padding: 8px 10px; border-radius: 8px; background: #0f172a; color: #fff; font-size: 12.4px; line-height: 1.45; font-weight: 400;
  white-space: normal; text-transform: none; letter-spacing: 0; box-shadow: var(--shadow, 0 6px 20px rgba(0,0,0,.25)); pointer-events: none;
}
.b9-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 12px; }
.b9-stat { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; display: grid; gap: 1px; }
.b9-stat b { font-size: 18px; }
.b9-stat span { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim-2); font-weight: 700; }
.b9-stat small { font-size: 11.5px; color: var(--dim); }
.b9-advice { margin: 0; padding-left: 20px; display: grid; gap: 7px; font-size: 13.6px; line-height: 1.5; }
.b9-key { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 13px; }

/* ---------- samples ---------- */
.b9-placeholder p { max-width: 62ch; }
.b9-sample-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; }
.b9-sample-text p, .b9-comment p { font-size: 14px; line-height: 1.7; margin: 0 0 10px; }
.b9-comment { border-left: 3px solid var(--sky); padding-left: 12px; }
.b9-critmap { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; background: var(--panel-2, transparent); align-self: start; }
.b9-critrow { border-bottom: 1px solid var(--line); padding: 7px 0; }
.b9-critrow:last-of-type { border-bottom: 0; }
.b9-critrow ul { margin: 4px 0 0; padding-left: 16px; font-size: 12.8px; line-height: 1.5; }
.b9-band { font-size: 13px; }
.b9 .seg button, .pt .seg button { min-height: 44px; }

/* ==========================================================================
   Speaking partner
   ========================================================================== */
.pt-setup .card-h { flex-wrap: wrap; gap: 8px; }
.pt-names { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 10px; align-items: end; }
.pt-names .field { margin-bottom: 0; }
.pt-names .input { min-height: 44px; }
.pt-swap { align-self: end; }
.pt-fs { border: 0; padding: 0; margin: 16px 0 0; min-width: 0; }
.pt-fs legend { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim-2); font-weight: 700; margin-bottom: 8px; padding: 0; }
.pt-choices { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px; }
.pt-choice { display: grid; grid-template-columns: auto 1fr; column-gap: 8px; align-items: center; min-height: 52px; padding: 9px 12px; border: 1px solid var(--line-2); border-radius: 12px; cursor: pointer; background: var(--panel); }
.pt-choice input { width: 18px; height: 18px; grid-row: span 2; accent-color: var(--mint); }
.pt-choice b { font-size: 14px; }
.pt-choice span { font-size: 12px; color: var(--dim); }
.pt-choice.on { border-color: var(--mint); background: var(--mint-soft); }
.pt-choice.is-off { opacity: .6; cursor: not-allowed; }
.pt-topics { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-top: 16px; align-items: end; }
.pt-topics .field { margin-bottom: 0; }
.pt-topics .input { min-height: 44px; width: 100%; }
.pt-checks { display: grid; gap: 6px; margin-top: 14px; }
.pt-check { display: flex; gap: 9px; align-items: center; min-height: 44px; font-size: 13.6px; cursor: pointer; }
.pt-check input { width: 20px; height: 20px; flex: none; accent-color: var(--mint); }

/* examiner screen */
.pt-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.pt-bar .mini { margin-left: 6px; }
.pt-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.pt-grid.has-card { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
.pt-stage { min-height: 320px; display: flex; flex-direction: column; gap: 12px; }
.pt-stage:focus { outline: 3px solid var(--brand, var(--mint)); outline-offset: 2px; }
.pt-progress { letter-spacing: .1em; text-transform: uppercase; font-weight: 700; }
.pt-say, .pt-ask { margin: 0; font-family: var(--display, inherit); line-height: 1.38; }
.pt-say { font-size: clamp(19px, 2.6vw, 25px); color: var(--dim); }
.pt-ask { font-size: clamp(24px, 3.6vw, 34px); color: var(--text, inherit); font-weight: 500; }
.pt-tag { display: inline-block; vertical-align: middle; font-family: var(--font, inherit); font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; padding: 2px 7px; border-radius: 6px; margin-right: 8px; background: var(--violet-soft); color: var(--violet); }
.pt-ask .pt-tag { background: var(--mint-soft); color: var(--mint-2, var(--mint)); }
.pt-hint { margin: 0; font-size: 13.4px; color: var(--dim); border-left: 3px solid var(--sky); padding-left: 10px; }
.pt-stop { padding: 10px 12px; border-radius: 10px; background: var(--amber-soft); color: var(--text, inherit); font-size: 15px; }
.pt-ctrl { margin-top: auto; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; }
.pt-timer .timerbar { flex-wrap: wrap; }
.pt-timer .timer { font-size: 26px; }
.pt-timer [data-timer-toggle] { min-height: 44px; min-width: 88px; }
.pt-rec { gap: 8px; align-items: center; }
.pt-rec .is-rec { border-color: var(--rose); color: var(--rose); }
.pt-keys { margin: 0; }
.pt-cuecard h3 { font-size: clamp(22px, 3vw, 30px); }
.pt-cuecard li { font-size: 16px; }
.pt-big h3 { font-size: clamp(26px, 5vw, 40px); }
.pt-big li { font-size: clamp(17px, 2.6vw, 22px); }
.pt-notes { width: 100%; box-sizing: border-box; min-height: 96px; font-size: 15px; }
.pt-cand-ctrl { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-bottom: 12px; }
.pt-cand-ctrl .input { min-height: 44px; width: 100%; }

/* rating */
.pt-crit { border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px 6px; margin: 0 0 10px; min-width: 0; }
.pt-crit legend { font-size: 14px; padding: 0 4px; }
.pt-bands { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 6px; }
.pt-band { position: relative; display: inline-flex; }
.pt-band input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.pt-band span { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; min-height: 44px; padding: 0 8px; border: 1px solid var(--line-2); border-radius: 10px; font-weight: 600; font-size: 14px; background: var(--panel); }
.pt-band input:checked + span, .pt-band.on span { background: var(--mint); border-color: var(--mint); color: #fff; }
.pt-band input:focus-visible + span { outline: 3px solid var(--brand, var(--mint)); outline-offset: 2px; }
.pt-desc summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-size: 13px; color: var(--dim); }
.pt-desc dl { margin: 0 0 8px; display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; font-size: 12.8px; line-height: 1.5; }
.pt-desc dt { font-weight: 700; color: var(--violet); }
.pt-desc dd { margin: 0; color: var(--dim); }
.pt-obs { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2px 12px; }
.pt-check.plus span { color: var(--mint-2, var(--mint)); }
.qcard.q-missing, .pt-crit.q-missing { border-color: var(--rose); box-shadow: 0 0 0 3px var(--rose-soft); }

/* results */
.pt-overall { display: grid; justify-items: center; padding: 6px 14px; border-radius: 12px; background: var(--mint-soft); }
.pt-overall b { font-size: 28px; line-height: 1.1; color: var(--mint-2, var(--mint)); }
.pt-overall span { font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim-2); font-weight: 700; }
.pt-table-wrap { overflow-x: auto; }
.pt-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 280px; }
.pt-table th, .pt-table td { border: 1px solid var(--line); padding: 8px 10px; text-align: center; }
.pt-table th[scope="row"] { text-align: left; font-weight: 600; }
.pt-table .pt-mean td, .pt-table .pt-mean th { background: var(--panel-2, transparent); }
.pt-table td.weak { background: var(--rose-soft); }
.pt-obsum { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.pt-clips { display: grid; gap: 8px; margin-top: 10px; }
.pt-clip { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pt-clip audio { max-width: 100%; min-height: 40px; }
.pt-hist { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.pt-hist li { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; font-size: 13.4px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.pt-hist-b { margin-left: auto; font-weight: 700; color: var(--mint-2, var(--mint)); }

/* ---------- narrow screens ---------- */
@media (max-width: 900px) {
  .b9-studio, .b9-sample-grid, .pt-grid.has-card { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .b9-grid, .b9-cats { grid-template-columns: minmax(0, 1fr); }
  .b9-ladder { grid-template-columns: minmax(0, 1fr); }
  .b9-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .b9-cat { flex-wrap: wrap; }
  .pt-names { grid-template-columns: minmax(0, 1fr); }
  .pt-swap { justify-self: start; }
  .pt-stage { min-height: 260px; }
  .pt-ctrl .row { width: 100%; }
  .pt-ctrl .row .btn-lg { flex: 1; }
}
@media (max-width: 400px) {
  .pt-band span { min-width: 44px; padding: 0 4px; }
  .b9-tabs a { padding: 8px 11px; font-size: 13px; }
}
@media print {
  .b9-tabs, .pt-ctrl, .pt-rec { display: none !important; }
}