/* v311 · Conversation activities in the owner's mockup look ("easier to read and understand"): a light panel, the scene as
   a pill, a segmented progress bar, the instruction in a task card with a green ribbon, and every line of the conversation
   as a white transcript card — round avatar, who says it, a ▶ / 🔊 Hear button, the line in bold, its meaning under it.
   The line you're on has a green border. Used by 🎭 Role-play (#vcSitDuo), 💬 Conversation challenge (#vcSitQ) and the
   lesson-plan panel (#vcLpTeach). */
:root{ --tr-bg:#f8fafc; --tr-card:#fff; --tr-line:#e2e8f0; --tr-ink:#0f172a; --tr-sub:#64748b; --tr-green:#0F766E; --tr-green2:#10b981; --tr-mint:#ecfdf5; --tr-mint2:#a7f3d0; }

/* ---- panel ---- */
#vcSitDuo, #vcSitQ{ background:var(--tr-bg) !important; color:var(--tr-ink); border:1px solid var(--tr-line); }
#vcSitDuo .vc-sit-duo-top, #vcSitQ .vc-sit-duo-top{ gap:8px; padding-bottom:8px; }
.vc-tr-pill{ display:inline-flex; align-items:center; gap:6px; padding:5px 12px; border-radius:999px; background:var(--tr-mint); border:1px solid var(--tr-mint2); color:#065f46; font-size:14px; font-weight:700; max-width:60%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
#vcSitDuo .vc-sit-duo-top > span{ font-size:12.5px; color:var(--tr-sub); }
#vcSitDuo .vc-drill-x, #vcSitQ .vc-drill-x{ width:34px; height:34px; border-radius:50%; border:1px solid var(--tr-line); background:#fff; color:#475569; flex:none; }
.vc-tr-steprow{ display:flex; justify-content:space-between; align-items:center; font-size:12.5px; color:var(--tr-sub); margin:2px 0 6px; }
.vc-tr-steprow b{ color:#047857; }
.vc-tr-seg{ display:flex; gap:4px; margin:0 0 10px; }
.vc-tr-seg span{ flex:1; height:6px; border-radius:99px; background:#e2e8f0; }
.vc-tr-seg span.done{ background:#059669; }
.vc-tr-seg span.on{ background:#059669; box-shadow:0 0 0 2px #fff, 0 0 0 4px #6ee7b7; }

/* ---- task card ---- */
.vc-tr-task{ position:relative; background:var(--tr-card); border:1px solid var(--tr-line); border-radius:16px; padding:14px 14px 12px; margin:0 0 12px; box-shadow:0 4px 6px -1px rgba(15,23,42,.04), 0 2px 4px -2px rgba(15,23,42,.04); overflow:hidden; }
.vc-tr-task::before{ content:''; position:absolute; left:0; right:0; top:0; height:4px; background:linear-gradient(90deg, #14b8a6, #10b981); }
.vc-tr-task-h{ display:flex; align-items:center; justify-content:space-between; gap:8px; flex-wrap:wrap; margin-bottom:8px; }
.vc-tr-tag{ display:inline-flex; align-items:center; gap:6px; padding:3px 10px; border-radius:7px; background:#f0fdfa; border:1px solid #99f6e4; color:#115e59; font-size:11.5px; font-weight:800; letter-spacing:.05em; text-transform:uppercase; }
.vc-tr-mode{ font-size:12px; color:var(--tr-sub); background:#f1f5f9; padding:3px 10px; border-radius:999px; }
.vc-tr-task .vc-sd-how{ background:none !important; padding:0 !important; margin:8px 0 0 !important; font-size:15px; font-weight:600; color:var(--tr-ink); line-height:1.45; }
.vc-tr-task .vc-sd-modes{ margin:0; }
.vc-tr-task .vc-sd-twist{ margin:10px 0 0; }
.vc-tr-task .vc-sitq-hint{ font-size:15.5px; font-weight:600; margin:0 0 8px; line-height:1.45; }
.vc-tr-task .vc-sitq-hint b{ color:#047857; }
.vc-tr-task .vc-sitq-input{ margin:4px 0 0; }

/* ---- conversation head + cards ---- */
.vc-tr-head{ display:flex; align-items:center; gap:8px; margin:4px 2px 8px; }
.vc-tr-head b{ font-size:12px; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--tr-ink); }
.vc-tr-count{ font-size:11.5px; font-weight:700; padding:2px 9px; border-radius:999px; background:#d1fae5; color:#065f46; }
#vcSitDuo .vc-sd-chat{ gap:10px; padding:2px 2px 10px; max-height:min(58vh, 520px); }
.vc-tr, #vcSitDuo .vc-sd-b.vc-tr, #vcSitQ .vc-sit-duo-line.vc-tr{ display:block; max-width:none !important; width:100%; box-sizing:border-box; align-self:stretch !important;
  background:var(--tr-card) !important; border:1px solid var(--tr-line); border-radius:16px !important; padding:12px 14px !important; margin:0 0 10px;
  box-shadow:0 1px 3px rgba(15,23,42,.05); cursor:pointer; opacity:1 !important; }
#vcSitDuo .vc-sd-b.vc-tr{ margin:0; }
.vc-tr:hover{ border-color:#cbd5e1; }
.vc-tr.cur, #vcSitDuo .vc-sd-b.vc-tr.cur{ border:2px solid var(--tr-green2) !important; box-shadow:0 4px 14px rgba(16,185,129,.12) !important; padding:11px 13px !important; cursor:default; }
.vc-tr-h{ display:flex; align-items:center; gap:8px; min-height:30px; }
.vc-tr-av{ width:28px; height:28px; border-radius:50%; flex:none; display:inline-flex; align-items:center; justify-content:center; background:#d1fae5; font-size:14px; }
.vc-tr-av.me{ background:#f1f5f9; }
.vc-tr-who{ font-size:13.5px; font-weight:700; color:var(--tr-ink); min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.vc-tr-chip{ display:inline-flex; align-items:center; gap:5px; font-size:11px; font-weight:700; color:#047857; background:var(--tr-mint); border:1px solid var(--tr-mint2); padding:1px 7px; border-radius:6px; white-space:nowrap; }
.vc-tr-chip i{ width:6px; height:6px; border-radius:50%; background:#10b981; animation:vcTrPulse 1.4s ease-in-out infinite; }
@keyframes vcTrPulse{ 50%{ opacity:.35; } }
@media (prefers-reduced-motion: reduce){ .vc-tr-chip i{ animation:none; } }
.vc-tr-play{ margin-left:auto !important; flex:none; width:32px; height:32px; border-radius:50%; border:0; background:#f1f5f9; color:#475569; font-size:12px; cursor:pointer; display:inline-flex; align-items:center; justify-content:center; }
.vc-tr-play:hover{ background:#e2e8f0; }
.vc-tr-play.on{ width:auto; min-width:32px; padding:0 12px; border-radius:999px; background:var(--tr-green); color:#fff; font-size:13px; font-weight:700; gap:4px; }
.vc-tr-play.on:hover{ background:#0b5f58; }
.vc-tr-body{ padding:6px 0 0 36px; }
.vc-tr .sit-t{ font-size:16px !important; font-weight:700; color:var(--tr-ink) !important; line-height:1.4; }
.vc-tr .sit-g{ font-size:13.5px !important; font-weight:500; color:var(--tr-sub) !important; margin-top:3px; line-height:1.4; }
.vc-tr.cur .sit-t{ font-size:19px !important; font-weight:800; }
.vc-tr.hid .vc-sd-goal{ font-size:15.5px; } .vc-tr.hid .vc-sd-peek{ margin:10px 0 0 !important; }
#vcSitDuo .vc-sd-done{ background:var(--tr-mint); border:1px solid var(--tr-mint2); border-radius:16px; padding:14px; text-align:center; color:#065f46; }

/* ---- footer ---- */
#vcSitDuo .vc-sit-duo-btns, #vcSitQ .vc-sit-duo-btns{ border-top:1px solid var(--tr-line); padding-top:10px; gap:8px; }
#vcSitDuo .vc-sit-duo-btns .skip-btn, #vcSitQ .vc-sit-duo-btns .skip-btn{ background:#fff; border:1px solid #cbd5e1; border-radius:12px; min-height:44px; font-weight:700; }
#vcSitDuo .vc-sit-duo-btns .check-btn, #vcSitQ .vc-sit-duo-btns .check-btn{ flex:1; min-height:46px; border-radius:12px; font-weight:800; background:var(--tr-green); box-shadow:0 6px 14px rgba(15,118,110,.22); }

/* ---- conversation challenge replies ---- */
#vcSitQ .vc-sitq-list{ border-top:0; }
#vcSitQ .vc-sitq-ans{ background:#fff; border:1px solid var(--tr-line); border-radius:12px; padding:9px 12px; margin:0 0 6px; border-bottom-style:solid; }
#vcSitQ .vc-sitq-ans.ok{ border-color:#a7f3d0; background:#f0fdf4; }
#vcSitQ .vc-sitq-acc-list span{ background:#f1f5f9; border:1px solid var(--tr-line); }
#vcSitQ .vc-sitq-input input{ border:1px solid #cbd5e1; border-radius:12px; background:#fff; }

/* ---- lesson-plan panel: the same light header, a ribboned task card, transcript-style sentences ---- */
#vcLpTeach{ background:var(--tr-bg); }
#vcLpTeach .vc-lpt-top{ background:#fff; color:var(--tr-ink); border-bottom:1px solid var(--tr-line); }
#vcLpTeach .vc-lpt-title{ display:inline-block; padding:5px 12px; border-radius:999px; background:var(--tr-mint); border:1px solid var(--tr-mint2); color:#065f46; font-size:14px; max-width:70%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
#vcLpTeach .vc-lpt-x{ background:#fff !important; color:#475569 !important; border:1px solid var(--tr-line) !important; border-radius:50% !important; width:34px; height:34px; }
#vcLpTeach .vc-lpt-x.vc-lpt-aa{ border-radius:999px !important; width:auto; padding:0 10px; }
#vcLpTeach .vc-lpt-x.vc-lpt-aa.on{ background:var(--tr-green) !important; color:#fff !important; border-color:var(--tr-green) !important; }
#vcLpTeach .vc-lpt-now{ background:var(--tr-bg); border-bottom:1px solid var(--tr-line); }
#vcLpTeach .vc-lpt-prog span{ height:6px; background:#e2e8f0; } #vcLpTeach .vc-lpt-prog span.done{ background:#059669; }
#vcLpTeach .vc-lpt-prog span.on{ background:#059669; box-shadow:0 0 0 2px #fff, 0 0 0 4px #6ee7b7; }
#vcLpTeach .vc-lpt-do{ position:relative; overflow:hidden; border-radius:16px; border-color:var(--tr-line); box-shadow:0 4px 6px -1px rgba(15,23,42,.04); padding-top:13px; }
#vcLpTeach .vc-lpt-do:not(.vc-lpt-sees)::before{ content:''; position:absolute; left:0; right:0; top:0; height:4px; background:linear-gradient(90deg, #14b8a6, #10b981); }
#vcLpTeach .vc-lpt-do.vc-lpt-sees{ background:#f8fafc; border-style:solid; padding-top:9px; }
#vcLpTeach .vc-lpt-do p:not(.vc-lpt-do-alt){ font-weight:600; color:var(--tr-ink) !important; }
#vcLpTeach .vc-lpt-do p.vc-lpt-do-alt{ font-style:italic; }
#vcLpTeach .vc-lpt-w{ background:#fff; border:1px solid var(--tr-line); border-radius:14px; padding:9px 12px; margin:0 0 8px; align-items:flex-start; }
#vcLpTeach .vc-lpt-w b{ display:block; color:var(--tr-ink); }
#vcLpTeach .vc-lpt-nav .check-btn{ border-radius:12px; background:var(--tr-green); box-shadow:0 6px 14px rgba(15,118,110,.22); }
#vcLpTeach .vc-lpt-nav .skip-btn{ border-radius:12px; background:#fff; border:1px solid #cbd5e1; }

/* ---- computers: one step larger ---- */
@media (min-width:1024px){
  .vc-tr .sit-t{ font-size:18px !important; } .vc-tr .sit-g{ font-size:15px !important; }
  .vc-tr.cur .sit-t{ font-size:22px !important; }
  .vc-tr-who{ font-size:14.5px; }
  .vc-tr-task .vc-sd-how, .vc-tr-task .vc-sitq-hint{ font-size:17px; }
}
html.vc-teach-lg .vc-tr .sit-t{ font-size:20px !important; } html.vc-teach-lg .vc-tr .sit-g{ font-size:17px !important; }
html.vc-teach-lg .vc-tr.cur .sit-t{ font-size:26px !important; }
html.vc-teach-lg .vc-tr-task .vc-sd-how, html.vc-teach-lg .vc-tr-task .vc-sitq-hint{ font-size:19px; }

/* ---- dark mode ---- */
body.dark-mode{ --tr-bg:#0f1a17; --tr-card:#16231f; --tr-line:#2b3d38; --tr-ink:#e6f1ec; --tr-sub:#a9bdb5; --tr-mint:#123128; --tr-mint2:#2b5a4c; }
body.dark-mode .vc-tr-pill, body.dark-mode #vcLpTeach .vc-lpt-title, body.dark-mode .vc-tr-chip, body.dark-mode .vc-tr-count{ color:#bff0dc; }
body.dark-mode .vc-tr-tag{ background:#12302b; border-color:#2b5a4c; color:#a7f3d0; }
body.dark-mode .vc-tr-av, body.dark-mode .vc-tr-mode, body.dark-mode .vc-tr-play:not(.on){ background:#20332d; color:#cfe3da; }
body.dark-mode #vcSitDuo .vc-drill-x, body.dark-mode #vcSitQ .vc-drill-x, body.dark-mode #vcLpTeach .vc-lpt-x, body.dark-mode #vcLpTeach .vc-lpt-top,
body.dark-mode #vcSitDuo .vc-sit-duo-btns .skip-btn, body.dark-mode #vcSitQ .vc-sit-duo-btns .skip-btn, body.dark-mode #vcSitQ .vc-sitq-ans, body.dark-mode #vcLpTeach .vc-lpt-w,
body.dark-mode #vcLpTeach .vc-lpt-nav .skip-btn, body.dark-mode #vcSitQ .vc-sitq-input input{ background:#16231f !important; color:#e6f1ec !important; border-color:#2b3d38 !important; }
body.dark-mode #vcSitQ .vc-sitq-ans.ok{ background:#143026 !important; }
body.dark-mode #vcLpTeach .vc-lpt-do.vc-lpt-sees{ background:#13201c; }

/* the panels are flex columns — nothing in the challenge may shrink (the task card was squashed to a sliver) */
#vcSitQ > *{ flex-shrink:0; }
#vcSitDuo > :not(.vc-sd-chat){ flex-shrink:0; }
/* a reply: name + text on the first line, the partner check / accept underneath */
#vcSitQ .vc-sitq-ans{ flex-wrap:wrap; row-gap:6px; }
#vcSitQ .vc-sitq-txt{ flex:1 1 60%; font-size:15px; font-weight:600; }
#vcSitQ .vc-sitq-pc{ flex:1 1 100%; order:3; }
#vcSitQ .vc-sitq-ans .vc-sitq-acc{ order:4; }