/* ==========================================================================
   THE COGNITIVE CRIME LAB — Design System
   Tokens: case-file / evidence-room aesthetic.
   Ink navy backdrop, manila-parchment panels, gold evidence tape,
   maroon department seal. Typewriter display face for stamps/labels,
   serif for long-form reading, clean sans reserved for interactive chrome.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Special+Elite&family=Source+Serif+4:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --ink:        #0F1B2C;
  --ink-2:      #16283F;
  --ink-3:      #1E3350;
  --parchment:  #EDE3C8;
  --parchment-2:#E3D5AE;
  --parchment-3:#F5EFDD;
  --gold:       #D4A63A;
  --gold-dim:   #A9812B;
  --maroon:     #7A2331;
  --maroon-dim: #5C1A24;
  --ink-text:   #201A10;
  --muted-text: #6B5F45;
  --paper-line: #C9B98A;
  --good:       #3F6B3F;
  --bad:        #9A2E2E;

  --font-stamp: 'Special Elite', 'Courier New', monospace;
  --font-read:  'Source Serif 4', Georgia, serif;
  --font-ui:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 3px;
  --shadow-lift: 0 14px 30px rgba(6,10,18,.45);
  --shadow-soft: 0 4px 12px rgba(6,10,18,.28);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  min-height:100vh;
  background:
    radial-gradient(1200px 800px at 15% -10%, #16283F 0%, transparent 60%),
    radial-gradient(1000px 700px at 110% 10%, #17223a 0%, transparent 55%),
    var(--ink);
  color: var(--parchment);
  font-family: var(--font-read);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection{ background: var(--gold); color: var(--ink); }

button{ font-family: var(--font-ui); cursor:pointer; }
input, select, textarea{ font-family: var(--font-ui); }

a{ color: var(--gold); }
a:hover{ color: #e9c874; }

.visually-hidden{
  position:absolute !important; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap; border:0; padding:0; margin:-1px;
}

/* Focus visibility for keyboard users */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* --------------------------------------------------------------------
   Shell / chrome
   -------------------------------------------------------------------- */

.app-shell{
  max-width: 1040px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

.topbar{
  display:flex;
  flex-wrap: wrap;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
  margin-bottom: 22px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 14px;
}
.brand img{
  width: 52px; height:52px; border-radius:50%;
  box-shadow: 0 0 0 3px var(--gold), var(--shadow-soft);
  flex-shrink:0;
}
.brand-text h1{
  font-family: var(--font-stamp);
  font-size: 1.15rem;
  letter-spacing: .04em;
  margin: 0 0 2px;
  color: var(--parchment-3);
}
.brand-text p{
  margin:0;
  font-family: var(--font-ui);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold-dim);
}

.topbar-actions{ display:flex; gap:10px; flex-wrap:wrap; align-items:flex-start; }
.topbar-info-buttons{ display:flex; flex-direction:column; gap:8px; }

.btn-instructions{
  background: var(--ink-3);
  border: 1px solid var(--gold-dim);
  color: var(--parchment-3);
  font-weight: 600;
  font-size: .85rem;
  padding: 12px 16px;
  min-height: 44px;
  border-radius: 999px;
  display:flex; align-items:center; gap:8px;
  transition: background .15s ease, transform .1s ease;
  white-space: nowrap;
}
.btn-instructions:hover{ background:#254160; }
.btn-instructions:active{ transform: scale(.97); }
.btn-instructions .badge-key{
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-stamp);
  font-size: .72rem;
  padding: 1px 6px;
  border-radius: 3px;
}

/* --------------------------------------------------------------------
   Screens
   -------------------------------------------------------------------- */

.screen{ display:none; }
.screen.is-active{ display:block; animation: fade-up .38s ease both; }

@keyframes fade-up{
  from{ opacity:0; transform: translateY(10px); }
  to{ opacity:1; transform: translateY(0); }
}

.folder{
  background: var(--parchment);
  color: var(--ink-text);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lift);
  position: relative;
  border: 1px solid #cbb987;
  margin-top: 32px;
}
.folder::before{
  /* manila folder tab */
  content: attr(data-tab);
  position:absolute;
  top:-26px; left: 28px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-stamp);
  font-size: .78rem;
  letter-spacing:.06em;
  padding: 6px 18px 8px;
  border-radius: 6px 6px 0 0;
  box-shadow: 0 -2px 6px rgba(0,0,0,.15);
}
.folder-inner{ padding: 42px 34px 34px; }

@media (max-width: 620px){
  .folder-inner{ padding: 34px 18px 24px; }
  .folder::before{ left: 16px; font-size: .68rem; padding: 5px 12px 6px; }
}

.case-stamp{
  font-family: var(--font-stamp);
  color: var(--maroon);
  font-size: .82rem;
  letter-spacing: .08em;
  border: 2px solid var(--maroon);
  display:inline-block;
  padding: 4px 10px;
  transform: rotate(-2deg);
  margin-bottom: 14px;
  border-radius: 2px;
}

h2.screen-title{
  font-family: var(--font-stamp);
  font-size: 1.5rem;
  margin: 0 0 6px;
  color: var(--maroon-dim);
}
.screen-subtitle{
  font-family: var(--font-ui);
  font-size: .82rem;
  color: var(--muted-text);
  margin: 0 0 26px;
  letter-spacing: .02em;
}

hr.tear{
  border: none;
  border-top: 1px dashed var(--paper-line);
  margin: 26px 0;
}

/* --------------------------------------------------------------------
   Intake form
   -------------------------------------------------------------------- */

.field-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 22px;
}
@media (max-width: 560px){ .field-grid{ grid-template-columns: 1fr; } }

.field label{
  display:block;
  font-family: var(--font-ui);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted-text);
  margin-bottom: 6px;
}
.field input[type="text"], .field input[type="date"], .field select{
  width:100%;
  padding: 11px 12px;
  border: 1px solid var(--paper-line);
  border-bottom: 2px solid var(--gold-dim);
  background: var(--parchment-3);
  color: var(--ink-text);
  border-radius: 2px;
  font-size: .95rem;
}
.field input:focus, .field select:focus{ background:#fff; }

.hero-actions{
  margin-top: 34px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 10px;
}

.btn-big{
  font-family: var(--font-stamp);
  font-size: 1.15rem;
  letter-spacing: .05em;
  color: var(--parchment-3);
  background: linear-gradient(180deg, var(--maroon) 0%, var(--maroon-dim) 100%);
  border: 2px solid #3a0f16;
  padding: 18px 38px;
  border-radius: 999px;
  box-shadow: 0 10px 0 #3a0f16, 0 16px 26px rgba(0,0,0,.4);
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn-big:hover{ transform: translateY(-2px); }
.btn-big:active{
  transform: translateY(4px);
  box-shadow: 0 6px 0 #3a0f16, 0 10px 18px rgba(0,0,0,.35);
}
.btn-big:disabled{
  opacity:.45;
  cursor:not-allowed;
  transform:none;
  box-shadow: 0 10px 0 #3a0f16, 0 16px 26px rgba(0,0,0,.4);
}
.hero-hint{
  font-family: var(--font-ui);
  font-size: .78rem;
  color: var(--muted-text);
}

/* --------------------------------------------------------------------
   Briefing screen
   -------------------------------------------------------------------- */

.briefing-lede p{
  font-size: 1.02rem;
  margin: 0 0 14px;
}

.categories-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 8px;
}
@media (max-width: 760px){ .categories-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .categories-grid{ grid-template-columns: 1fr; } }

.category-card{
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-radius: 4px;
  padding: 14px 14px 16px;
}
.category-card h3{
  font-family: var(--font-ui);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform:uppercase;
  color: var(--maroon);
  margin: 0 0 10px;
}
.category-card ul{ margin:0; padding-left: 18px; }
.category-card li{ margin-bottom: 4px; font-size: .92rem; }

.concept-select{
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--paper-line);
  border-bottom: 2px solid var(--gold-dim);
  border-radius: 2px;
  background: #fff;
  color: var(--ink-text);
  font-size: .88rem;
  margin-bottom: 10px;
}
.concept-definition{
  margin: 0;
  font-size: .84rem;
  color: var(--muted-text);
  min-height: 3.2em;
  line-height: 1.45;
}

.suspect-card{
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-left: 5px solid var(--gold-dim);
  border-radius: 3px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.suspect-card h4{
  margin: 0 0 4px;
  font-family: var(--font-ui);
  font-weight:700;
  font-size: .98rem;
  color: var(--ink-text);
}
.suspect-card p{ margin:0; font-size: .88rem; color: var(--muted-text); }

/* --------------------------------------------------------------------
   Clue board
   -------------------------------------------------------------------- */

.clue-board{
  display:grid;
  gap: 10px;
}
.clue-card{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-radius: 3px;
  padding: 12px 14px;
}
.clue-num{
  font-family: var(--font-stamp);
  color: var(--maroon);
  font-size: .95rem;
  flex-shrink:0;
  width: 26px;
}
.clue-text{ font-size: .96rem; }

/* --------------------------------------------------------------------
   Deduction grid
   -------------------------------------------------------------------- */

.grid-wrap{ overflow-x:auto; }
table.deduction-grid{
  width:100%;
  border-collapse: collapse;
  min-width: 640px;
  background: var(--parchment-3);
}
table.deduction-grid th, table.deduction-grid td{
  border: 1px solid var(--paper-line);
  padding: 10px 12px;
  text-align:left;
  vertical-align: middle;
}
table.deduction-grid thead th{
  font-family: var(--font-ui);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--maroon);
  background: #ddc99b;
}
table.deduction-grid td.suspect-cell{
  font-weight:600;
  font-family: var(--font-ui);
  white-space: nowrap;
}
table.deduction-grid select{
  width:100%;
  padding: 8px 8px;
  border: 1px solid var(--paper-line);
  border-radius:2px;
  background:#fff;
  color: var(--ink-text);
  font-size: .9rem;
}

.grid-cell-label{ display:none; }

/* Below this width, both the deduction grid and the findings-review
   table (see "Findings" below) switch from a horizontally-scrolling
   4-column table to a stack of one card per suspect — the core
   interaction of the whole game shouldn't require side-scrolling on a
   phone. Table markup (and its semantics) is kept; only its display
   mode changes. */
@media (max-width: 680px){
  table.deduction-grid, table.deduction-grid tbody,
  table.deduction-grid tr, table.deduction-grid td{
    display: block;
    width: 100%;
  }
  table.deduction-grid{ min-width: 0; }
  table.deduction-grid thead{ display: none; } /* labels shown inline instead, see .grid-cell-label */
  table.deduction-grid tr{
    margin-bottom: 14px;
    border: 1px solid var(--paper-line);
    border-radius: 4px;
    overflow: hidden;
  }
  table.deduction-grid td{
    border: none;
    border-bottom: 1px solid var(--paper-line);
    padding: 12px 14px;
  }
  table.deduction-grid tr td:last-child{ border-bottom: none; }
  table.deduction-grid td.suspect-cell{
    background: #ddc99b;
    font-size: 1rem;
    white-space: normal;
  }
  .grid-cell-label{
    display:block;
    font-family: var(--font-ui);
    font-size: .68rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--maroon);
    margin-bottom: 6px;
  }
  table.deduction-grid select{
    padding: 11px 10px; /* taller tap target on touch devices */
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------
   Accusation
   -------------------------------------------------------------------- */

.accusation-box{
  background: var(--parchment-3);
  border: 1px dashed var(--maroon);
  border-radius: 4px;
  padding: 20px;
  margin-top: 8px;
}
.accusation-box label{
  display:block;
  font-family: var(--font-stamp);
  color: var(--maroon-dim);
  font-size: 1.02rem;
  margin-bottom: 10px;
}
.accusation-box textarea{
  width:100%;
  min-height: 64px;
  padding: 12px;
  border: 1px solid var(--paper-line);
  border-bottom: 2px solid var(--maroon);
  border-radius: 2px;
  background:#fff;
  color: var(--ink-text);
  font-size: .98rem;
  resize: vertical;
}
.accusation-hint{
  font-family: var(--font-ui);
  font-size: .76rem;
  color: var(--muted-text);
  margin-top: 8px;
}

.submit-row{
  margin-top: 30px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 10px;
}

.validation-msg{
  font-family: var(--font-ui);
  font-size: .82rem;
  color: var(--bad);
  min-height: 1.2em;
  text-align:center;
}

/* --------------------------------------------------------------------
   Findings / results screen
   -------------------------------------------------------------------- */

.verdict-banner{
  display:flex;
  align-items:center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 4px;
  margin-bottom: 22px;
  font-family: var(--font-ui);
}
.verdict-banner.correct{ background:#e3ecdd; border:1px solid var(--good); color:#294d29; }
.verdict-banner.incorrect{ background:#f2dede; border:1px solid var(--bad); color:#5c2020; }
.verdict-banner .verdict-title{ font-weight:700; font-size: 1rem; margin-bottom:2px; }
.verdict-banner .verdict-sub{ font-size: .85rem; opacity:.9; }

.summary-block{ margin-bottom: 22px; }
.summary-block h3{
  font-family: var(--font-ui);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--maroon);
  margin: 0 0 10px;
}

table.findings-table{ width:100%; border-collapse: collapse; }
table.findings-table th, table.findings-table td{
  border:1px solid var(--paper-line);
  padding: 8px 10px;
  font-size: .9rem;
  text-align:left;
}
table.findings-table thead th{
  background:#ddc99b;
  font-family: var(--font-ui);
  font-size:.68rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color: var(--maroon);
}
.cell-correct{ color: var(--good); font-weight:600; }
.cell-incorrect{ color: var(--bad); font-weight:600; }

@media (max-width: 680px){
  table.findings-table, table.findings-table tbody,
  table.findings-table tr, table.findings-table td{
    display: block;
    width: 100%;
  }
  table.findings-table thead{ display: none; }
  table.findings-table tr{
    margin-bottom: 12px;
    border: 1px solid var(--paper-line);
    border-radius: 4px;
    overflow: hidden;
  }
  table.findings-table td{
    border: none;
    border-bottom: 1px solid var(--paper-line);
  }
  table.findings-table tr td:last-child{ border-bottom: none; }
  table.findings-table td.suspect-cell{
    background: #ddc99b;
    font-weight: 700;
  }
}

.download-panel{
  background: var(--parchment-3);
  border: 2px solid var(--gold-dim);
  border-radius: 6px;
  padding: 22px;
  text-align:center;
  margin-top: 8px;
}
.download-panel p{ margin: 0 0 16px; font-size: .95rem; }

.btn-download{
  font-family: var(--font-stamp);
  font-size: 1rem;
  color: var(--ink);
  background: var(--gold);
  border: 2px solid var(--gold-dim);
  padding: 14px 28px;
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  transition: transform .12s ease;
}
.btn-download:hover{ transform: translateY(-2px); }

.new-case-row{ text-align:center; margin-top: 24px; }
.btn-ghost{
  background:transparent;
  border: 1px solid var(--muted-text);
  color: var(--ink-text);
  font-family: var(--font-ui);
  font-size: .85rem;
  padding: 9px 18px;
  border-radius: 999px;
}
.btn-ghost:hover{ border-color: var(--maroon); color: var(--maroon); }

/* --------------------------------------------------------------------
   Instructions modal
   -------------------------------------------------------------------- */

.modal-overlay{
  position: fixed;
  inset: 0;
  background: rgba(6,10,18,.72);
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding: 6vh 16px;
  z-index: 100;
  opacity:0;
  pointer-events:none;
  transition: opacity .18s ease;
}
.modal-overlay.is-open{ opacity:1; pointer-events:auto; }

.modal-box{
  background: var(--parchment);
  color: var(--ink-text);
  max-width: 560px;
  width:100%;
  border-radius: 6px;
  box-shadow: var(--shadow-lift);
  padding: 30px 28px 26px;
  max-height: 84vh;
  overflow-y:auto;
  position:relative;
  transform: translateY(-12px);
  transition: transform .18s ease;
}
.modal-overlay.is-open .modal-box{ transform: translateY(0); }

.modal-box h2{
  font-family: var(--font-stamp);
  color: var(--maroon-dim);
  margin: 0 0 16px;
  font-size: 1.2rem;
  padding-right: 56px;
}
.modal-box ol{ padding-left: 20px; margin:0; }
.modal-box li{ margin-bottom: 10px; font-size: .93rem; }

.modal-close{
  position:absolute;
  top: 14px; right: 14px;
  background: var(--ink-3);
  color: var(--parchment-3);
  border:none;
  width: 40px; height:40px;
  border-radius:50%;
  font-size: 1.1rem;
  line-height:1;
  display:flex; align-items:center; justify-content:center;
}
.modal-close:hover{ background: var(--maroon); }

/* Reference Guide modal — a wider variant with a search bar and a long,
   scrollable, chapter-organized glossary. */
.modal-box-wide{ max-width: 760px; }

.reference-search-row{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-bottom: 16px;
  position: sticky;
  top: 0;
  background: var(--parchment);
  padding: 4px 0 8px;
  z-index: 1;
}
#reference-search{
  flex:1;
  font-family: var(--font-ui);
  font-size: .92rem;
  padding: 10px 14px;
  border: 1px solid var(--paper-line);
  border-radius: 4px;
  background: #fff;
  color: var(--ink-text);
}
#reference-search:focus{ outline: 2px solid var(--gold); outline-offset: 1px; }
.reference-search-count{
  font-family: var(--font-ui);
  font-size: .78rem;
  color: var(--muted-text);
  white-space: nowrap;
}

.reference-content{ font-size: .9rem; }
.reference-chapter{ margin-bottom: 22px; }
.reference-chapter:last-child{ margin-bottom: 0; }
.reference-chapter-title{
  font-family: var(--font-stamp);
  color: var(--maroon-dim);
  font-size: 1.02rem;
  border-bottom: 2px solid var(--gold-dim);
  padding-bottom: 6px;
  margin: 0 0 12px;
}
.reference-section{ margin-bottom: 14px; }
.reference-section-title{
  font-family: var(--font-ui);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted-text);
  margin: 0 0 8px;
}
.reference-terms{ margin: 0; }
.reference-term{
  padding: 6px 0;
  border-bottom: 1px dotted var(--paper-line);
}
.reference-term:last-child{ border-bottom: none; }
.reference-term dt{
  font-weight: 700;
  color: var(--ink-text);
  display: inline;
}
.reference-term dt::after{ content: " — "; font-weight: 400; color: var(--muted-text); }
.reference-term dd{
  display: inline;
  margin: 0;
  color: var(--ink-text);
}
.reference-framework-table{
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.reference-framework-table th, .reference-framework-table td{
  text-align: left;
  padding: 8px 10px;
  border: 1px solid var(--paper-line);
  vertical-align: top;
}
.reference-framework-table th{
  background: var(--parchment-3);
  font-family: var(--font-ui);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted-text);
}
@media (max-width: 560px){
  .reference-framework-table, .reference-framework-table thead, .reference-framework-table tbody, .reference-framework-table th, .reference-framework-table td, .reference-framework-table tr{ display:block; }
  .reference-framework-table thead{ display:none; }
  .reference-framework-table tr{ margin-bottom: 10px; border: 1px solid var(--paper-line); border-radius: 3px; padding: 6px 8px; }
  .reference-framework-table td::before{ content: attr(data-label); display:block; font-family: var(--font-ui); font-size: .65rem; text-transform:uppercase; letter-spacing:.05em; color: var(--muted-text); }
}

/* --------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------- */

.app-footer{
  text-align:center;
  margin-top: 40px;
  font-family: var(--font-ui);
  font-size: .72rem;
  color: #6f83a1;
  letter-spacing: .04em;
}
.app-footer a{ color:#8fa8cb; }

/* ==========================================================================
   EVIDENCE BOARD (HUB) + CHAPTER EXERCISE + QUIZ
   Added for the study-guide pivot: 15 Evidence Bags, a reusable chapter
   exercise screen, and the aggregated "Case File" recap panel.
   ========================================================================== */

.btn-textlink{
  background:none;
  border:none;
  color: var(--muted-text);
  font-family: var(--font-ui);
  font-size: .78rem;
  text-decoration: underline;
  cursor:pointer;
  padding: 4px;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
}
.btn-textlink:hover{ color: var(--maroon); }

.hub-progress{
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-radius: 4px;
  padding: 12px 16px;
  margin-bottom: 22px;
  font-family: var(--font-ui);
  font-size: .85rem;
  color: var(--ink-text);
  display:flex;
  align-items:center;
  gap: 12px;
  flex-wrap: wrap;
}
.hub-progress-bar{
  flex: 1 1 160px;
  height: 10px;
  background: #ddd2ab;
  border-radius: 999px;
  overflow:hidden;
  min-width: 120px;
}
.hub-progress-bar-fill{
  height:100%;
  background: linear-gradient(90deg, var(--gold-dim), var(--gold));
  border-radius: 999px;
  transition: width .3s ease;
}

.bag-grid{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px 14px;
  margin-bottom: 10px;
}
@media (max-width: 900px){ .bag-grid{ grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 700px){ .bag-grid{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px){ .bag-grid{ grid-template-columns: repeat(2, 1fr); gap: 16px 10px; } }
@media (max-width: 480px){ .match-wrap{ flex-direction: column; } .match-col{ min-width: 0; } }

.bag-tile{
  background:none;
  border:none;
  padding: 0;
  cursor:pointer;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  border-radius: 8px;
  transition: transform .12s ease;
}
.bag-tile:hover:not(.is-locked){ transform: translateY(-3px); }
.bag-tile.is-locked{ cursor: default; }
.bag-tile svg{ width:100%; max-width:100px; height:auto; filter: drop-shadow(0 4px 8px rgba(0,0,0,.28)); }
.bag-tile.is-available svg{ filter: drop-shadow(0 0 0 2px var(--gold)) drop-shadow(0 4px 10px rgba(0,0,0,.3)); }
.bag-caption{
  margin-top: 6px;
  font-family: var(--font-ui);
  font-size: .68rem;
  font-weight: 600;
  color: var(--ink-text);
  line-height: 1.3;
}
.bag-caption .bag-num{
  display:block;
  font-family: var(--font-stamp);
  font-size: .72rem;
  color: var(--gold);
  margin-bottom: 2px;
}
.bag-caption .bag-status{
  display:block;
  font-size: .6rem;
  text-transform:uppercase;
  letter-spacing: .06em;
  color: var(--muted-text, #9aa9c4);
  margin-top: 2px;
}
.bag-tile.is-completed .bag-caption .bag-status{ color: #2f6b2f; }
.bag-tile.is-available .bag-caption .bag-status{ color: var(--gold); }

.hub-reset-row{ text-align:center; margin-top: 18px; }

/* Chapter exercise screen */
.section-heading{
  font-family: var(--font-ui);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--maroon);
  margin: 24px 0 14px;
}

.case-file-panel{
  background: var(--parchment-3);
  border: 1px dashed var(--gold-dim);
  border-radius: 4px;
  padding: 14px 16px;
  margin: 8px 0 6px;
}
.case-file-panel h4{
  margin: 0 0 8px;
  font-family: var(--font-stamp);
  font-size: .88rem;
  color: var(--maroon-dim);
}
.case-file-chips{ display:flex; flex-wrap:wrap; gap: 6px; }
.case-file-chip{
  background: #ddc99b;
  border: 1px solid var(--gold-dim);
  color: var(--ink-text);
  font-family: var(--font-ui);
  font-size: .74rem;
  padding: 3px 10px;
  border-radius: 999px;
}

.flashcard-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}
.flashcard{
  perspective: 1000px;
  height: 130px;
  cursor: pointer;
}
.flashcard-inner{
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform .5s;
  transform-style: preserve-3d;
}
.flashcard.is-flipped .flashcard-inner{ transform: rotateY(180deg); }
.flashcard-front, .flashcard-back{
  position: absolute;
  width: 100%; height: 100%;
  border-radius: 3px;
  display:flex; align-items:center; justify-content:center;
  text-align:center; padding: 12px;
  backface-visibility: hidden;
  font-family: var(--font-ui);
}
.flashcard-front{
  background: linear-gradient(135deg, var(--ink), #1e3350);
  color: #f2ead0;
  font-weight: 700;
  font-size: .95rem;
  border: 1px solid var(--gold);
}
.flashcard-back{
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-left: 4px solid var(--maroon);
  transform: rotateY(180deg);
  color: var(--ink-text);
  font-size: .82rem;
  font-weight: 400;
}

.match-wrap{ display:flex; gap:20px; flex-wrap:wrap; }
.match-col{ flex:1; min-width: 200px; }
.match-item{
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 10px;
  border-radius: 3px;
  background: var(--parchment-3);
  border: 2px solid var(--paper-line);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: .85rem;
  color: var(--ink-text);
  transition: .15s;
}
.match-badge{
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--parchment-3);
  font-weight: 700;
  font-size: .72rem;
  margin-top: 1px;
}
.match-text{ flex: 1; }
.match-item.is-selected{ border-color: var(--gold); background: #fbf2d6; }
.match-item.is-selected .match-badge{ background: var(--gold); color: var(--ink-text); }
.match-item.is-matched{
  background: #dcecd8;
  border-color: #5a8a52;
  opacity: .65;
  cursor: default;
}
.match-item.is-matched .match-badge{ background: #5a8a52; color: #fff; }
.match-item.is-shaking{ animation: match-shake .35s; border-color: var(--maroon); }
@keyframes match-shake{ 25%{ transform: translateX(-6px); } 75%{ transform: translateX(6px); } }
.match-status{
  text-align:center;
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--maroon);
  min-height: 1.2em;
}
.source-line{ display: inline-block; }
.source-line em{ color: var(--muted-text); font-size: .82rem; }

.quiz-question{
  background: var(--parchment-3);
  border: 1px solid var(--paper-line);
  border-radius: 4px;
  padding: 14px 16px;
  margin-bottom: 14px;
}
.quiz-question.is-review{ border-left: 4px solid var(--gold-dim); }
.quiz-question .quiz-prompt{
  font-size: .96rem;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--ink-text);
}
.quiz-question .quiz-tag{
  display:inline-block;
  font-family: var(--font-ui);
  font-size: .62rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--gold-dim);
  border: 1px solid var(--gold-dim);
  border-radius: 999px;
  padding: 1px 8px;
  margin-bottom: 8px;
}
.quiz-choice{
  display:flex;
  align-items:flex-start;
  gap: 8px;
  padding: 8px 4px;
  min-height: 36px;
  box-sizing: border-box;
  cursor:pointer;
  font-size: .9rem;
  border-radius: 3px;
}
.quiz-choice:hover{ background: rgba(0,0,0,.03); }
.quiz-choice input{ margin-top: 3px; }
.quiz-feedback{
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 3px;
  font-size: .85rem;
  display:none;
}
.quiz-question.is-graded .quiz-feedback{ display:block; }
.quiz-question.is-correct .quiz-feedback{ background:#e3ecdd; color:#294d29; }
.quiz-question.is-incorrect .quiz-feedback{ background:#f2dede; color:#5c2020; }

.chapter-results{ margin-top: 20px; }
.chapter-results:empty{ display:none; }
.capture-banner{
  background: var(--parchment-3);
  border: 2px solid var(--gold-dim);
  border-radius: 6px;
  padding: 20px;
  text-align:center;
  margin-bottom: 16px;
}
.capture-banner h3{
  font-family: var(--font-stamp);
  color: var(--maroon-dim);
  margin: 0 0 8px;
}
.capture-banner p{ margin: 0 0 16px; font-size: .92rem; }

.chapter-sources{
  font-family: var(--font-ui);
  font-size: .78rem;
  color: var(--muted-text);
  margin-top: 18px;
}
.chapter-sources a{ color: var(--maroon); }

.uat-banner{
  background: #4a3a12;
  border: 1px solid var(--gold);
  color: #f5dfa0;
  font-family: var(--font-ui);
  font-size: .78rem;
  padding: 10px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
}