/* =========================================================
   Microteaching — Mastering the Skills of Classroom Teaching
   Design tokens: deep navy / indigo / teal / coral on light neutral
   ========================================================= */
:root{
  --navy:        #16213E;
  --navy-soft:   #4B5675;
  --navy-faint:  #8B93A8;
  --bg:          #FAFBFC;
  --card:        #FFFFFF;
  --line:        #E4E8F0;
  --indigo:      #5B4FE0;
  --indigo-deep: #4638C2;
  --indigo-tint: #EEECFC;
  --blue:        #2F6FED;
  --blue-tint:   #E8F0FE;
  --teal:        #17A398;
  --teal-tint:   #E3F6F4;
  --coral:       #F2703C;
  --coral-deep:  #D8551F;
  --coral-tint:  #FFEBE0;
  --magenta:     #C43B8E;
  --magenta-tint:#FBE7F1;
  --amber:       #D9891E;
  --amber-tint:  #FBF0DD;
  --cyan:        #0E93A8;
  --cyan-tint:   #E1F3F6;
  --violet:      #7C3FE0;
  --violet-tint: #F0EAFD;
  --gold:        #C9971F;
  --gold-tint:   #FBF3DE;
  --accent:      var(--indigo);
  --accent-tint: var(--indigo-tint);
  --danger:      #E0483E;
  --danger-tint: #FCE7E5;
  --shadow: 0 1px 2px rgba(22,33,62,.05), 0 8px 24px rgba(22,33,62,.07);
  --shadow-lg: 0 10px 34px rgba(22,33,62,.16);
  --radius: 16px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sidebar-w: 280px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg); color:var(--navy); font-family:var(--font);
  line-height:1.55; -webkit-font-smoothing:antialiased; min-height:100vh;
}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--indigo);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){ *{animation-duration:.001ms !important;transition-duration:.001ms !important;} }
h1,h2,h3{margin:0 0 .4em;color:var(--navy);font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 .9em;}
.hidden{display:none !important;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---------- Signature motif: numbered skill chip ---------- */
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;background:var(--accent);color:#fff;
  font-weight:800;font-size:14px;flex-shrink:0;
}
.chip.done{background:var(--teal);}
.chip.outline{background:var(--accent-tint);color:var(--accent);}
.chip.lg{width:52px;height:52px;font-size:18px;border-radius:14px;}

/* ---------- App shell ---------- */
#app{display:flex;min-height:100vh;max-width:1180px;margin:0 auto;}

.topbar{
  position:sticky;top:0;z-index:50;display:none;align-items:center;gap:10px;
  padding:12px 16px;background:rgba(250,251,252,.94);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar .menu-btn{border:none;background:var(--indigo-tint);color:var(--indigo-deep);width:40px;height:40px;border-radius:10px;font-size:18px;cursor:pointer;}
.topbar .t-title{flex:1;font-weight:800;font-size:14px;}

.sidebar{
  width:var(--sidebar-w);flex-shrink:0;border-right:1px solid var(--line);
  padding:22px 16px;position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--card);
}
.brand{display:flex;align-items:center;gap:10px;margin-bottom:6px;padding:0 4px;}
.brand .mark{width:36px;height:36px;border-radius:10px;background:var(--navy);color:var(--coral);display:flex;align-items:center;justify-content:center;font-weight:900;}
.brand .name{font-weight:800;font-size:14px;line-height:1.2;}
.brand .name small{display:block;font-weight:600;color:var(--navy-faint);font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;}

.course-progress{margin:16px 4px 18px;}
.course-progress .pct{font-size:12px;font-weight:700;color:var(--indigo-deep);margin-bottom:5px;}
.progress-track{height:8px;border-radius:999px;background:var(--indigo-tint);overflow:hidden;}
.progress-track > i{display:block;height:100%;background:linear-gradient(90deg,var(--indigo),var(--teal));border-radius:999px;transition:width .3s ease;}

.nav-list{list-style:none;margin:0;padding:0;}
.nav-section-label{font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--navy-faint);margin:16px 6px 6px;}
.nav-item{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:none;background:transparent;
  padding:9px 8px;border-radius:10px;cursor:pointer;color:var(--navy-soft);font-size:13.5px;font-weight:600;margin-bottom:2px;
}
.nav-item:hover{background:var(--indigo-tint);}
.nav-item.active{background:var(--navy);color:#fff;}
.nav-item.active .mini-chip{background:var(--coral);color:#fff;}
.nav-item .mini-chip{
  width:24px;height:24px;border-radius:7px;background:var(--line);color:var(--navy-soft);
  display:flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:800;flex-shrink:0;
}
.nav-item.done .mini-chip{background:var(--teal);color:#fff;}
.nav-item .n-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.nav-item[aria-disabled="true"]{opacity:.4;cursor:not-allowed;}

.lang-toggle{display:flex;border:1.5px solid var(--navy);border-radius:999px;overflow:hidden;font-size:12px;font-weight:800;margin:0 4px 18px;}
.lang-toggle button{flex:1;border:none;background:var(--card);color:var(--navy);padding:8px 10px;cursor:pointer;min-height:38px;}
.lang-toggle button.active{background:var(--navy);color:#fff;}

.main-col{flex:1;min-width:0;}
main{padding:28px 32px 60px;max-width:760px;}

@media (max-width: 900px){
  .topbar{display:flex;}
  .sidebar{
    position:fixed;left:0;top:0;height:100vh;z-index:60;transform:translateX(-104%);
    transition:transform .22s ease;box-shadow:var(--shadow-lg);
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar-backdrop{position:fixed;inset:0;background:rgba(22,33,62,.4);z-index:55;display:none;}
  .sidebar-backdrop.open{display:block;}
  main{padding:18px 16px 48px;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:12px;
  font-weight:700;font-size:14.5px;padding:13px 20px;cursor:pointer;min-height:46px;
  transition:transform .1s ease, filter .1s ease;
}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--indigo);color:#fff;box-shadow:var(--shadow);}
.btn-primary:hover{background:var(--indigo-deep);}
.btn-coral{background:var(--coral);color:#fff;}
.btn-coral:hover{background:var(--coral-deep);}
.btn-outline{background:var(--card);border:1.5px solid var(--line);color:var(--navy);}
.btn-outline:hover{border-color:var(--indigo);}
.btn-ghost{background:transparent;color:var(--indigo-deep);padding:10px 12px;}
.btn-block{width:100%;}
.btn-sm{padding:9px 14px;font-size:13px;min-height:38px;}
.btn:disabled{opacity:.4;cursor:not-allowed;}

/* ---------- Welcome ---------- */
.hero{padding:8px 0 6px;}
.hero .eyebrow{color:var(--coral-deep);font-weight:800;font-size:12px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;}
.hero h1{font-size:32px;line-height:1.12;}
.hero .sub{font-size:16px;color:var(--navy-soft);margin:8px 0 20px;}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 26px;}
.badge{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 13px;font-size:12.5px;font-weight:700;color:var(--navy-soft);}
.badge.coral{background:var(--coral-tint);color:var(--coral-deep);border-color:transparent;}
.outcomes-list{list-style:none;margin:0;padding:0;}
.outcomes-list li{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.outcomes-list li:last-child{border-bottom:none;}
.outcomes-list li::before{content:"✓";color:var(--teal);font-weight:900;flex-shrink:0;}

/* ---------- Big idea diagram (recurring dark card) ---------- */
.bigidea{background:var(--navy);border-radius:var(--radius);padding:22px 18px;margin:18px 0 26px;color:#fff;}
.bigidea .bi-title{color:var(--coral);font-size:12px;letter-spacing:.08em;text-transform:uppercase;font-weight:800;margin-bottom:14px;}
.bi-step{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;font-weight:700;}
.bi-arrow{text-align:center;color:var(--coral);font-size:12px;opacity:.8;}

/* ---------- Course map ---------- */
.course-map{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0;}
.map-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px;}
.map-card .m-num{font-size:10.5px;font-weight:800;color:var(--navy-faint);text-transform:uppercase;}
.map-card .m-name{font-size:13px;font-weight:700;margin-top:2px;}
@media (max-width:480px){ .course-map{grid-template-columns:1fr;} }

/* ---------- Opening question ---------- */
.opening-q{background:var(--indigo-tint);border-radius:var(--radius);padding:22px 18px;margin:18px 0;}
.opening-q .q{font-size:19px;font-weight:800;color:var(--indigo-deep);margin-bottom:10px;}
.opening-q .a{font-size:15px;color:var(--navy-soft);}

/* ---------- Cards ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow);}
.card h3{font-size:18px;}
.section-label{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--indigo-deep);margin-bottom:8px;}

.module-header{display:flex;align-items:center;gap:14px;margin-bottom:6px;}
.module-header .m-meta{flex:1;}
.module-header .m-cat{font-size:11.5px;font-weight:800;color:var(--accent);text-transform:uppercase;letter-spacing:.06em;}
.module-title{font-size:24px;margin:2px 0 4px;}
.module-sub{color:var(--navy-soft);font-size:14.5px;margin-bottom:22px;}

/* ---------- Cycle tabs (Understand / See / Try / Reflect / Improve) ---------- */
.cycle-tabs{display:flex;gap:6px;margin-bottom:18px;overflow-x:auto;padding-bottom:2px;}
.cycle-tabs button{flex-shrink:0;border:1.5px solid var(--line);background:var(--card);color:var(--navy-soft);border-radius:999px;padding:8px 14px;font-size:12.5px;font-weight:700;cursor:pointer;}
.cycle-tabs button.active{background:var(--navy);border-color:var(--navy);color:#fff;}
.cycle-tabs button.done{border-color:var(--teal);color:var(--teal);}

/* pattern sub-section labels (used within the See/Try tabs) */
.subsec{margin-bottom:22px;}
.subsec .subsec-label{display:flex;align-items:center;gap:8px;font-weight:800;font-size:13.5px;color:var(--navy);margin-bottom:8px;}
.subsec .letter{width:24px;height:24px;border-radius:7px;background:var(--accent-tint);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:900;flex-shrink:0;}

.effective-box, .ineffective-box{border-left:4px solid var(--teal);background:var(--teal-tint);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:13px 15px;margin-bottom:10px;}
.ineffective-box{border-left-color:var(--danger);background:var(--danger-tint);}
.effective-box .tag, .ineffective-box .tag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;display:block;margin-bottom:4px;}
.effective-box .tag{color:#0f8074;}
.ineffective-box .tag{color:#b53a31;}

.takeaway-box{background:var(--navy);color:#fff;border-radius:var(--radius-sm);padding:16px 18px;}
.takeaway-box .tag{color:var(--coral);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:6px;}
.takeaway-box p{margin:0;font-size:14.5px;}

/* ---------- Options / activities ---------- */
.option-list{display:flex;flex-direction:column;gap:8px;margin:12px 0;}
.option-btn{text-align:left;border:1.5px solid var(--line);background:var(--card);border-radius:var(--radius-sm);padding:13px 14px;font-size:14.5px;cursor:pointer;min-height:46px;color:var(--navy);}
.option-btn:hover{border-color:var(--indigo);}
.option-btn.selected{border-color:var(--indigo);background:var(--indigo-tint);}
.option-btn.correct{border-color:var(--teal);background:var(--teal-tint);}
.option-btn.incorrect{border-color:var(--danger);background:var(--danger-tint);}
.option-btn.check-selected{outline:2px solid var(--indigo);}

.feedback-box{border-radius:var(--radius-sm);padding:13px 14px;margin-top:10px;font-size:14px;}
.feedback-box.correct{background:var(--teal-tint);color:#0f5c53;border:1px solid var(--teal);}
.feedback-box.incorrect{background:var(--danger-tint);color:#8a2c25;border:1px solid var(--danger);}

.activity-badge{display:inline-block;background:var(--accent-tint);color:var(--accent);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;padding:5px 10px;border-radius:999px;margin-bottom:10px;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:26px;margin:14px 0;}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--line);}
.t-item{position:relative;padding-bottom:20px;}
.t-item::before{content:"";position:absolute;left:-26px;top:3px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:3px solid var(--accent-tint);}
.t-item .t-year{font-weight:800;color:var(--accent);font-size:12.5px;}
.t-item .t-text{font-size:14px;color:var(--navy-soft);margin-top:2px;}

/* ---------- Cycle diagram ---------- */
.cycle-diagram{display:flex;flex-direction:column;gap:0;margin:14px 0;}
.cy-step{display:flex;align-items:center;gap:12px;background:var(--accent-tint);border-radius:var(--radius-sm);padding:12px 14px;}
.cy-step b{font-size:14.5px;}
.cy-step span{display:block;font-size:12.5px;color:var(--navy-soft);}
.cy-arrow{text-align:center;color:var(--accent);font-size:14px;padding:3px 0;}

/* ---------- Reorder ---------- */
.reorder-row{display:flex;align-items:center;gap:10px;}
.reorder-row .pos{font-weight:800;color:var(--indigo-deep);width:20px;}
.reorder-row .updown{display:flex;gap:4px;}

/* ---------- Checklist ---------- */
.checklist{list-style:none;margin:0;padding:0;}
.check-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--line);}
.check-item:last-child{border-bottom:none;}
.check-item input[type=checkbox]{width:20px;height:20px;flex-shrink:0;margin-top:2px;accent-color:var(--indigo);}
.check-item label{font-size:14px;cursor:pointer;}

/* ---------- Observation table ---------- */
.obs-row{border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 14px;margin-bottom:10px;}
.obs-row .obs-skill{font-weight:700;font-size:14px;margin-bottom:8px;}
.obs-toggle{display:flex;gap:8px;margin-bottom:8px;}
.obs-toggle button{flex:1;border:1.5px solid var(--line);background:var(--card);border-radius:8px;padding:8px;font-size:12.5px;font-weight:700;cursor:pointer;}
.obs-toggle button.sel-yes.active{background:var(--teal-tint);border-color:var(--teal);color:#0f5c53;}
.obs-toggle button.sel-no.active{background:var(--danger-tint);border-color:var(--danger);color:#8a2c25;}
.obs-row textarea{width:100%;border:1.5px solid var(--line);border-radius:8px;padding:9px 10px;font-size:13px;font-family:inherit;min-height:56px;}

/* ---------- Blackboard compare ---------- */
.board-mock{background:#1F4A3E;border:10px solid #6B4A2E;border-radius:6px;padding:14px;color:#EAF3EE;font-family:var(--font-mono);font-size:11px;line-height:1.7;min-height:170px;}
.board-mock.messy{font-family:cursive, var(--font);}

/* ---------- Forms ---------- */
.field{margin-bottom:16px;}
.field label{display:block;font-weight:700;font-size:13.5px;margin-bottom:5px;}
.field .hint{font-size:12px;color:var(--navy-faint);margin-bottom:6px;}
.field input[type=text], .field textarea{width:100%;border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:12px 13px;font-size:15px;font-family:inherit;background:var(--card);color:var(--navy);}
.field textarea{min-height:78px;resize:vertical;}
.field input:focus, .field textarea:focus{border-color:var(--indigo);}

/* ---------- Module nav row ---------- */
.module-nav{display:flex;gap:10px;margin-top:26px;padding-top:18px;border-top:1px solid var(--line);}
.module-nav .btn{flex:1;}
.complete-check{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--teal);margin-bottom:14px;}

/* ---------- Assessment ---------- */
.q-progress{font-size:12px;color:var(--navy-faint);font-weight:700;margin-bottom:8px;}
.q-text{font-size:16.5px;font-weight:700;margin-bottom:14px;}
.score-ring{width:130px;height:130px;border-radius:50%;margin:16px auto;display:flex;align-items:center;justify-content:center;flex-direction:column;border:9px solid var(--indigo);}
.score-ring b{font-size:30px;}
.score-ring span{font-size:11px;color:var(--navy-soft);}

/* ---------- Certificate ---------- */
.certificate{background:var(--card);border:2px solid var(--indigo);border-radius:var(--radius);padding:34px 24px;text-align:center;position:relative;}
.certificate::before{content:"";position:absolute;inset:9px;border:1px solid var(--indigo-tint);border-radius:12px;pointer-events:none;}
.certificate .cert-eyebrow{color:var(--coral-deep);font-weight:800;letter-spacing:.12em;font-size:11px;text-transform:uppercase;}
.certificate h2{font-size:21px;margin:10px 0 2px;}
.certificate .cert-sub{color:var(--navy-soft);font-size:13px;margin-bottom:20px;}
.certificate .cert-awarded{font-size:12px;color:var(--navy-faint);text-transform:uppercase;letter-spacing:.06em;font-weight:700;}
.certificate .cert-name{font-size:27px;font-weight:800;border-bottom:2px solid var(--navy);display:inline-block;padding:0 10px 6px;margin:8px 0 16px;}
.certificate .cert-body{font-size:13.5px;color:var(--navy-soft);max-width:440px;margin:0 auto 18px;}
.cert-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:11px;color:var(--navy-faint);border-top:1px dashed var(--line);padding-top:14px;font-family:var(--font-mono);}
.cert-qr{width:64px;height:64px;border:1.5px dashed var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:9px;color:var(--navy-faint);text-align:center;margin:0 auto 14px;}

.completion-badges{display:flex;flex-direction:column;gap:8px;margin:16px 0;}
.completion-badges .cb{display:flex;align-items:center;gap:10px;background:var(--teal-tint);color:#0f5c53;border-radius:var(--radius-sm);padding:11px 14px;font-weight:700;font-size:14px;}

/* ---------- Toast ---------- */
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:12px 18px;border-radius:999px;font-size:13.5px;font-weight:600;box-shadow:var(--shadow-lg);z-index:100;opacity:0;pointer-events:none;transition:opacity .2s ease, transform .2s ease;}
#toast.show{opacity:1;transform:translateX(-50%) translateY(-4px);}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);color:var(--navy-faint);font-size:12.5px;}
.site-footer b{display:block;color:var(--navy-soft);font-size:13px;margin-bottom:2px;}

/* ---------- Print ---------- */
@media print{
  .sidebar, .topbar, .module-nav, #toast, .btn, .no-print{display:none !important;}
  main{padding:0;max-width:100%;}
  #app{display:block;}
  body{background:#fff;}
}

@media (min-width: 480px){ .hero h1{font-size:36px;} }