/* EnglishGate B2 Lesson 1 — organized integrated flow v2
   Scope: only .b2-integrated-workbook so no other lesson is changed. */

.b2-integrated-workbook{
  --b2-ink:#0f172a;
  --b2-muted:#64748b;
  --b2-line:#e2e8f0;
  --b2-soft:#f8fafc;
  --b2-blue:#2563eb;
  --b2-blue-dark:#17369f;
  --b2-blue-soft:#eff6ff;
  width:min(1180px,100%);
  margin:0 auto;
}

/* 1. Make this a single, intentional learning flow instead of the old
   left-sidebar workbook layout. */
.b2-integrated-workbook .eg-lesson-layout{
  display:grid!important;
  grid-template-columns:minmax(0,1fr)!important;
  gap:14px!important;
}
.b2-integrated-workbook .eg-stage-list{
  position:static!important;
  width:100%!important;
  max-width:none!important;
  margin:0!important;
  padding:14px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:18px!important;
  background:#fff!important;
  box-shadow:0 8px 24px rgba(15,23,42,.045)!important;
}
.b2-integrated-workbook .eg-stage-list>.eg-label,
.b2-integrated-workbook .eg-stage-list>.eg-goal{
  display:none!important;
}
.b2-integrated-workbook .eg-stage-list nav{
  display:grid!important;
  grid-template-columns:repeat(5,minmax(0,1fr))!important;
  gap:8px!important;
  width:100%!important;
}
.b2-integrated-workbook .eg-stage{
  position:relative;
  width:100%!important;
  min-width:0!important;
  min-height:54px!important;
  margin:0!important;
  padding:9px 10px!important;
  display:grid!important;
  grid-template-columns:30px minmax(0,1fr)!important;
  align-items:center!important;
  gap:8px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:13px!important;
  background:var(--b2-soft)!important;
  color:var(--b2-muted)!important;
  box-shadow:none!important;
  text-align:left!important;
}
.b2-integrated-workbook .eg-stage>span{
  width:30px!important;
  height:30px!important;
  min-width:30px!important;
  display:grid!important;
  place-items:center!important;
  border-radius:999px!important;
  background:#e9eef5!important;
  color:#475569!important;
  font-size:.76rem!important;
  font-weight:900!important;
}
.b2-integrated-workbook .eg-stage strong{
  min-width:0;
  color:#475569!important;
  font-size:.78rem!important;
  line-height:1.18!important;
  font-weight:850!important;
  text-transform:none!important;
  white-space:normal!important;
}
.b2-integrated-workbook .eg-stage.is-current{
  border-color:#9bbcff!important;
  background:var(--b2-blue-soft)!important;
  box-shadow:inset 0 0 0 1px rgba(37,99,235,.08)!important;
}
.b2-integrated-workbook .eg-stage.is-current>span{
  background:var(--b2-blue)!important;
  color:#fff!important;
}
.b2-integrated-workbook .eg-stage.is-current strong{
  color:var(--b2-blue-dark)!important;
}
.b2-integrated-workbook .eg-stage.is-done{
  border-color:#cbd5e1!important;
  background:#fff!important;
}
.b2-integrated-workbook .eg-stage.is-done>span{
  background:#0f766e!important;
  color:#fff!important;
}
.b2-integrated-workbook .eg-stage:disabled{
  opacity:.5!important;
  cursor:not-allowed!important;
}

/* 2. Remove duplicate nested-card styling from the legacy teaching surface. */
.b2-integrated-workbook .eg-workbook-teaching-surface{
  overflow:visible!important;
  border:0!important;
  border-radius:0!important;
  background:transparent!important;
  box-shadow:none!important;
}
.b2-integrated-workbook .eg-stage-heading{
  min-height:0!important;
  margin:0 0 10px!important;
  padding:4px 2px 8px!important;
  border:0!important;
  background:transparent!important;
}
.b2-integrated-workbook .eg-stage-heading .eg-label{
  margin:0 0 3px!important;
  color:var(--b2-muted)!important;
  font-size:.72rem!important;
  font-weight:800!important;
  letter-spacing:.08em!important;
  text-transform:uppercase!important;
}
.b2-integrated-workbook .eg-stage-heading h2{
  margin:0!important;
  color:var(--b2-ink)!important;
  font-size:1.08rem!important;
  line-height:1.25!important;
}
.b2-integrated-workbook .eg-workbook-stage-content{
  min-height:0!important;
  padding:0!important;
  border:0!important;
  background:transparent!important;
}
.b2-integrated-workbook .b2-flow-page{
  display:grid!important;
  gap:16px!important;
  width:100%!important;
  max-width:100%!important;
}

/* 3. One consistent stage hero. */
.b2-integrated-workbook .b2-flow-page .eg-skill-hero,
.b2-integrated-workbook .b2-scenario-hero{
  margin:0!important;
  padding:24px 26px!important;
  border:1px solid #d9e3f0!important;
  border-radius:20px!important;
  background:linear-gradient(180deg,#ffffff 0%,#f8fbff 100%)!important;
  box-shadow:0 10px 30px rgba(15,23,42,.05)!important;
}
.b2-integrated-workbook .b2-flow-page .eg-skill-hero{
  display:flex!important;
  align-items:flex-start!important;
  justify-content:space-between!important;
  gap:20px!important;
}
.b2-integrated-workbook .eg-skill-kicker{
  display:inline-flex!important;
  width:max-content!important;
  margin:0 0 8px!important;
  padding:5px 9px!important;
  border-radius:999px!important;
  background:#e8f0ff!important;
  color:var(--b2-blue-dark)!important;
  font-size:.7rem!important;
  line-height:1!important;
  font-weight:900!important;
  letter-spacing:.08em!important;
  text-transform:uppercase!important;
}
.b2-integrated-workbook .b2-flow-page .eg-skill-hero h1,
.b2-integrated-workbook .b2-scenario-hero h1{
  margin:0!important;
  max-width:760px!important;
  color:var(--b2-ink)!important;
  font-size:clamp(1.55rem,3vw,2.15rem)!important;
  line-height:1.12!important;
  letter-spacing:-.025em!important;
}
.b2-integrated-workbook .b2-flow-page .eg-skill-hero p,
.b2-integrated-workbook .b2-scenario-hero>p{
  margin:9px 0 0!important;
  max-width:72ch!important;
  color:#475569!important;
  font-size:.98rem!important;
  line-height:1.68!important;
}
.b2-integrated-workbook .eg-question-count,
.b2-integrated-workbook .b2-time{
  flex:0 0 auto!important;
  display:inline-flex!important;
  align-items:center!important;
  min-height:34px!important;
  padding:7px 10px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:999px!important;
  background:#fff!important;
  color:var(--b2-muted)!important;
  font-size:.72rem!important;
  font-weight:850!important;
  white-space:nowrap!important;
}

/* Scenario */
.b2-integrated-workbook .b2-scenario-hero{
  display:grid!important;
  gap:14px!important;
}
.b2-integrated-workbook .b2-goal-card{
  display:grid!important;
  gap:5px!important;
  max-width:820px!important;
  margin:2px 0 0!important;
  padding:15px 17px!important;
  border:1px solid #cfe0ff!important;
  border-radius:14px!important;
  background:#f2f7ff!important;
}
.b2-integrated-workbook .b2-goal-card small{
  color:#60728c!important;
  font-size:.68rem!important;
  font-weight:850!important;
  letter-spacing:.06em!important;
  text-transform:uppercase!important;
}
.b2-integrated-workbook .b2-goal-card strong{
  color:#17315f!important;
  font-size:.98rem!important;
  line-height:1.5!important;
}

/* Understand */
.b2-integrated-workbook .b2-conversation-source{
  display:grid!important;
  grid-template-columns:minmax(0,1.6fr) minmax(270px,.7fr)!important;
  gap:14px!important;
  align-items:start!important;
  padding:0!important;
  border:0!important;
  background:transparent!important;
}
.b2-integrated-workbook .b2-conversation-source>.eg-reading-article,
.b2-integrated-workbook .b2-conversation-source>.eg-audio-card{
  margin:0!important;
  border:1px solid var(--b2-line)!important;
  border-radius:17px!important;
  background:#fff!important;
  box-shadow:0 7px 22px rgba(15,23,42,.04)!important;
}
.b2-integrated-workbook .b2-conversation-source>.eg-reading-article{
  padding:20px!important;
}
.b2-integrated-workbook .b2-conversation-source>.eg-audio-card{
  position:sticky!important;
  top:78px!important;
  padding:18px!important;
}

/* Questions are visually one ordered sequence, not separate floating worksheets. */
.b2-integrated-workbook .activity-question-list{
  display:grid!important;
  gap:10px!important;
  width:100%!important;
  max-width:860px!important;
  margin:0 auto!important;
}
.b2-integrated-workbook .guided-question{
  margin:0!important;
  padding:18px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:16px!important;
  background:#fff!important;
  box-shadow:none!important;
}
.b2-integrated-workbook .guided-question .question-stage{
  margin:0 0 7px!important;
}
.b2-integrated-workbook .guided-question .question-stage span{
  color:var(--b2-muted)!important;
  font-size:.7rem!important;
  font-weight:850!important;
  letter-spacing:.04em!important;
}
.b2-integrated-workbook .guided-question>p{
  margin:0 0 13px!important;
  color:var(--b2-ink)!important;
  font-size:1rem!important;
  line-height:1.5!important;
  font-weight:750!important;
}

/* Interact */
.b2-integrated-workbook .b2-conversation-turns{
  position:relative!important;
  display:grid!important;
  gap:10px!important;
  max-width:860px!important;
  margin:0 auto!important;
  padding-left:18px!important;
}
.b2-integrated-workbook .b2-conversation-turns::before{
  content:"";
  position:absolute;
  left:6px;
  top:18px;
  bottom:18px;
  width:2px;
  border-radius:999px;
  background:#dbe5f1;
}
.b2-integrated-workbook .b2-turn-card{
  position:relative!important;
  display:grid!important;
  gap:9px!important;
  margin:0!important;
  padding:17px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:16px!important;
  background:#fff!important;
  box-shadow:none!important;
}
.b2-integrated-workbook .b2-turn-card::before{
  content:"";
  position:absolute;
  left:-18px;
  top:23px;
  width:12px;
  height:12px;
  border:3px solid #fff;
  border-radius:999px;
  background:var(--b2-blue);
  box-shadow:0 0 0 1px #bdd0ee;
}
.b2-integrated-workbook .b2-turn-card>span,
.b2-integrated-workbook .b2-message-task>span,
.b2-integrated-workbook .b2-message-reply>span,
.b2-integrated-workbook .b2-detected-error small{
  color:#718096!important;
  font-size:.68rem!important;
  font-weight:900!important;
  letter-spacing:.07em!important;
  text-transform:uppercase!important;
}
.b2-integrated-workbook .b2-turn-card>strong{
  color:var(--b2-ink)!important;
  font-size:1rem!important;
  line-height:1.45!important;
}
.b2-integrated-workbook .b2-turn-card textarea,
.b2-integrated-workbook .b2-message-task textarea,
.b2-integrated-workbook .b2-message-reply textarea{
  width:100%!important;
  box-sizing:border-box!important;
  margin:0!important;
  padding:12px 13px!important;
  border:1px solid #cbd5e1!important;
  border-radius:11px!important;
  background:#fff!important;
  color:var(--b2-ink)!important;
  font:inherit!important;
  line-height:1.5!important;
  resize:vertical!important;
}
.b2-integrated-workbook .b2-turn-card textarea:focus,
.b2-integrated-workbook .b2-message-task textarea:focus,
.b2-integrated-workbook .b2-message-reply textarea:focus{
  outline:3px solid rgba(37,99,235,.12)!important;
  border-color:#7aa5ee!important;
}
.b2-integrated-workbook .b2-mic-btn{
  justify-self:start!important;
  min-height:38px!important;
}

/* Produce */
.b2-integrated-workbook .b2-message-task,
.b2-integrated-workbook .b2-message-reply{
  display:grid!important;
  gap:10px!important;
  width:100%!important;
  max-width:860px!important;
  margin:0 auto!important;
  padding:20px!important;
  border:1px solid var(--b2-line)!important;
  border-radius:17px!important;
  background:#fff!important;
  box-shadow:none!important;
}
.b2-integrated-workbook .b2-message-task>strong{
  color:var(--b2-ink)!important;
  font-size:1.03rem!important;
}
.b2-integrated-workbook .b2-message-task>p{
  margin:0!important;
  color:#475569!important;
  line-height:1.55!important;
}
.b2-integrated-workbook .b2-message-reply blockquote{
  margin:0!important;
  padding:14px 16px!important;
  border:1px solid #dce7f5!important;
  border-left:4px solid var(--b2-blue)!important;
  border-radius:0 12px 12px 0!important;
  background:#f8fbff!important;
  color:#334155!important;
  line-height:1.58!important;
}
.b2-integrated-workbook .writing-share-choice{
  width:100%!important;
  max-width:860px!important;
  margin:0 auto!important;
}

/* Improve */
.b2-integrated-workbook .b2-detected-error{
  display:grid!important;
  gap:7px!important;
  width:100%!important;
  max-width:860px!important;
  margin:0 auto!important;
  padding:18px!important;
  border:1px solid #cfe0f3!important;
  border-radius:16px!important;
  background:#f8fbff!important;
  box-shadow:none!important;
}
.b2-integrated-workbook .b2-detected-error strong{
  color:var(--b2-ink)!important;
  font-size:1rem!important;
}
.b2-integrated-workbook .b2-detected-error p{
  margin:0!important;
  color:#475569!important;
  line-height:1.55!important;
}
.b2-integrated-workbook .b2-detected-error b{
  color:#166534!important;
  line-height:1.5!important;
}

/* Feedback + actions */
.b2-integrated-workbook #activityFeedback{
  width:100%!important;
  max-width:860px!important;
  margin:0 auto!important;
}
.b2-integrated-workbook .eg-workbook-footer{
  position:sticky!important;
  bottom:0!important;
  z-index:9!important;
  display:flex!important;
  align-items:center!important;
  justify-content:flex-end!important;
  gap:9px!important;
  min-height:66px!important;
  margin:8px 0 0!important;
  padding:10px 12px calc(10px + env(safe-area-inset-bottom))!important;
  border:1px solid var(--b2-line)!important;
  border-radius:16px!important;
  background:rgba(255,255,255,.96)!important;
  box-shadow:0 -4px 20px rgba(15,23,42,.055)!important;
  backdrop-filter:blur(12px)!important;
}
.b2-integrated-workbook .eg-workbook-footer:empty{
  display:none!important;
}
.b2-integrated-workbook .eg-workbook-footer button{
  min-height:44px!important;
}

/* Keep the lesson header compact so the activity starts above the fold. */
.b2-integrated-workbook>.eg-lesson-header{
  margin-bottom:12px!important;
  padding-top:8px!important;
  padding-bottom:8px!important;
}
.b2-integrated-workbook>.eg-lesson-header h1{
  font-size:1.16rem!important;
}
.b2-integrated-workbook>.eg-lesson-header p{
  margin-bottom:2px!important;
  font-size:.72rem!important;
}

/* Mobile: progress becomes one clean horizontal strip; content stays single-column. */
@media(max-width:820px){
  .b2-integrated-workbook{
    width:100%!important;
  }
  .b2-integrated-workbook .eg-stage-list{
    padding:10px!important;
    border-radius:14px!important;
  }
  .b2-integrated-workbook .eg-stage-list nav{
    display:flex!important;
    gap:7px!important;
    overflow-x:auto!important;
    overscroll-behavior-x:contain!important;
    scroll-snap-type:x proximity!important;
    scrollbar-width:none!important;
    padding:1px 0 3px!important;
  }
  .b2-integrated-workbook .eg-stage-list nav::-webkit-scrollbar{
    display:none!important;
  }
  .b2-integrated-workbook .eg-stage{
    flex:0 0 132px!important;
    min-height:48px!important;
    grid-template-columns:27px minmax(0,1fr)!important;
    padding:8px!important;
    scroll-snap-align:start!important;
  }
  .b2-integrated-workbook .eg-stage>span{
    width:27px!important;
    height:27px!important;
    min-width:27px!important;
  }
  .b2-integrated-workbook .eg-stage strong{
    font-size:.73rem!important;
  }
  .b2-integrated-workbook .b2-flow-page .eg-skill-hero,
  .b2-integrated-workbook .b2-scenario-hero{
    padding:18px!important;
    border-radius:16px!important;
  }
  .b2-integrated-workbook .b2-flow-page .eg-skill-hero{
    display:grid!important;
    gap:12px!important;
  }
  .b2-integrated-workbook .eg-question-count,
  .b2-integrated-workbook .b2-time{
    justify-self:start!important;
  }
  .b2-integrated-workbook .b2-conversation-source{
    grid-template-columns:1fr!important;
  }
  .b2-integrated-workbook .b2-conversation-source>.eg-audio-card{
    position:static!important;
  }
  .b2-integrated-workbook .guided-question,
  .b2-integrated-workbook .b2-turn-card,
  .b2-integrated-workbook .b2-message-task,
  .b2-integrated-workbook .b2-message-reply,
  .b2-integrated-workbook .b2-detected-error{
    padding:15px!important;
    border-radius:14px!important;
  }
  .b2-integrated-workbook .b2-conversation-turns{
    padding-left:14px!important;
  }
  .b2-integrated-workbook .b2-conversation-turns::before{
    left:4px!important;
  }
  .b2-integrated-workbook .b2-turn-card::before{
    left:-15px!important;
    width:10px!important;
    height:10px!important;
  }
  .b2-integrated-workbook .eg-workbook-footer{
    bottom:calc(66px + env(safe-area-inset-bottom))!important;
    display:grid!important;
    grid-template-columns:1fr!important;
    padding:9px!important;
    border-radius:14px!important;
  }
  .b2-integrated-workbook .eg-workbook-footer button{
    width:100%!important;
  }
}

@media(max-width:480px){
  .b2-integrated-workbook .b2-flow-page .eg-skill-hero h1,
  .b2-integrated-workbook .b2-scenario-hero h1{
    font-size:1.42rem!important;
  }
  .b2-integrated-workbook .b2-flow-page .eg-skill-hero p,
  .b2-integrated-workbook .b2-scenario-hero>p{
    font-size:.93rem!important;
    line-height:1.55!important;
  }
  .b2-integrated-workbook .guided-question>p{
    font-size:.96rem!important;
  }
}