/* ============================================================================
   chapter.css — W.H. Academy
   ----------------------------------------------------------------------------
   Every chapter on the platform is styled by this one file. It replaces the
   per-chapter style.css that v16 shipped inside each chapter folder.

   Nothing here is subject-specific. Subject identity comes entirely through
   --subject-accent / --subject-accent-tint, which chapter-engine.js sets on
   :root once, from the chapter's subjectKey.

   Everything is built from the tokens in variables.css — no new colours, no
   new type scale. A chapter should read as the same product as the dashboard.
   ========================================================================== */

/* ---- Layout helpers the engine relies on -------------------------------
   These class names are used throughout chapter-engine.js (reading-column,
   stack, stack-sm, stack-lg, cluster) but were never defined anywhere, so
   the Theory stage in particular rendered as unstyled, awkwardly aligned
   text. Defining them here gives every stage a consistent rhythm. */

.stack > * + * { margin-top: var(--space-4); }
.stack-sm > * + * { margin-top: var(--space-3); }
.stack-lg > * + * { margin-top: var(--space-6); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

/* The reading column keeps prose at a comfortable measure and left-aligned,
   rather than stranded against the centred card edge. */
.reading-column {
  text-align: left;
  line-height: 1.7;
}
.reading-column h2 {
  font: var(--type-h3);
  margin-bottom: var(--space-2);
}
.reading-column section p {
  color: var(--color-text-secondary);
}
.reading-column section + section { margin-top: var(--space-6); }

/* The chapter shell caps content at 680px and centres it; on the Theory
   stage that left a big empty gutter on wide screens. Pull the reading
   column to the full comfortable width and give it breathing room. */
#chapter-stage-content { padding-inline: var(--space-4); }

/* ---- Practice hub ------------------------------------------------------- */

.practice-intro h2 { font: var(--type-h2); margin-bottom: var(--space-2); }

.practice-overall { margin-bottom: var(--space-2); }
.progress--lg { height: 14px; }

.practice-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 560px) { .practice-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .practice-grid { grid-template-columns: repeat(3, 1fr); } }

.practice-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,0,0,0.06);
  background: var(--color-bg-surface-solid);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: transform var(--motion-quick) var(--ease-out), box-shadow var(--motion-quick) var(--ease-out);
}
.practice-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(0,0,0,0.12); }
.practice-card--done { opacity: 0.96; }

/* Eight vivid, colorful gradients — one per game type. On these saturated
   fills the text and chips flip to white for contrast (see rules below). */
.practice-card--c1 { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.practice-card--c2 { background: linear-gradient(135deg, #06b6d4, #3b82f6); }
.practice-card--c3 { background: linear-gradient(135deg, #f97316, #f59e0b); }
.practice-card--c4 { background: linear-gradient(135deg, #10b981, #22c55e); }
.practice-card--c5 { background: linear-gradient(135deg, #d946ef, #a855f7); }
.practice-card--c6 { background: linear-gradient(135deg, #ef4444, #f43f5e); }
.practice-card--c7 { background: linear-gradient(135deg, #d97706, #f59e0b); }
.practice-card--c8 { background: linear-gradient(135deg, #0ea5e9, #14b8a6); }

/* Any coloured card: white text, no border, a stronger lift on hover. */
.practice-card[class*="--c"] {
  border: none;
  color: #fff;
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}
.practice-card[class*="--c"]:hover { box-shadow: 0 12px 28px rgba(0,0,0,0.24); }

.practice-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.practice-card__title { font: var(--type-h4); margin: 0; color: #1e293b; }
.practice-card__desc { color: #475569; flex: 1; }

/* Force inner text, badge, progress bar and Play button to read on the fill. */
.practice-card[class*="--c"] .practice-card__title { color: #fff; }
.practice-card[class*="--c"] .practice-card__desc,
.practice-card[class*="--c"] .text-caption { color: rgba(255,255,255,0.92); }
.practice-card[class*="--c"] .badge {
  background: rgba(255,255,255,0.22);
  color: #fff;
  border: none;
}
.practice-card[class*="--c"] .progress { background: rgba(255,255,255,0.30); }
.practice-card[class*="--c"] .progress__fill { background: #fff; }
.practice-card[class*="--c"] .progress__fill--done { background: #bbf7d0; }
.practice-card[class*="--c"] .btn--primary {
  background: #fff;
  color: #1e293b;
  border: none;
  font-weight: 700;
}
.practice-card[class*="--c"] .btn--primary:hover { background: #f1f5f9; }

.progress {
  height: 8px;
  border-radius: var(--radius-pill);
  background: rgba(0,0,0,0.08);
  overflow: hidden;
}
.progress__fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: var(--subject-accent, var(--color-brand-ink));
  transition: width var(--motion-base) var(--ease-out);
}
.progress__fill--done { background: var(--color-success); }

/* In-question toolbar (exit / previous) — prominent so they're clearly buttons */
.q-toolbar {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}
.q-toolbar .btn {
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-5);
  font-weight: 600;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
/* Exit = solid subject accent; Previous = soft neutral. Both read as buttons. */
.q-toolbar .btn:first-child {
  background: var(--subject-accent, var(--color-brand-ink));
  color: #fff;
}
.q-toolbar .btn:first-child:hover { filter: brightness(1.08); }
.q-toolbar .btn:last-child {
  background: var(--neutral-200);
  color: var(--color-text-primary);
}
.q-toolbar .btn:last-child:hover { background: var(--neutral-300); }
.q-toolbar .btn:disabled { opacity: 0.4; box-shadow: none; }

/* ---- Drag and drop (shared) --------------------------------------------- */

.drag-source { cursor: grab; user-select: none; }
.drag-source--dragging { opacity: 0.35; }
.drag-ghost {
  opacity: 0.95;
  transform: scale(1.04);
  box-shadow: 0 10px 24px rgba(0,0,0,0.28);
  border-radius: var(--radius-pill);
}
.drop-zone--over {
  outline: 3px dashed var(--subject-accent, var(--color-brand-ink));
  outline-offset: 2px;
  background: var(--subject-accent-tint, var(--color-brand-ink-tint)) !important;
}
.drop-zone-tray { min-height: 56px; border: 2px dashed var(--color-border-strong); border-radius: var(--radius-sm); padding: var(--space-3); }

/* ---- Match the Pairs (arrow board) -------------------------------------- */

.match-board {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;              /* the space in the middle where arrows are drawn */
  margin-bottom: var(--space-4);
}
.match-col { display: flex; flex-direction: column; gap: var(--space-3); }

.match-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}
.match-line { stroke: var(--subject-accent, #3730a3); stroke-width: 3; }
.match-line--temp { stroke-dasharray: 6 4; opacity: 0.8; }
.match-line--right { stroke: var(--color-success); }
.match-line--wrong { stroke: var(--color-error); }

.match-node {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font: var(--type-body-sm);
  min-height: var(--touch-target-min);
}
.match-node--left {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border: 1px solid #c7d2fe;
  justify-content: space-between;
}
.match-node--right {
  background: linear-gradient(135deg, #ecfeff, #cffafe);
  border: 1px solid #a5f3fc;
}
.match-node--target { outline: 3px solid var(--subject-accent, #3730a3); outline-offset: 2px; }

.match-node.match-node--right { background: var(--color-success-surface); border-color: var(--color-success); }
.match-node.match-node--wrong { background: var(--color-error-surface); border-color: var(--color-error); }

.match-node__text { flex: 1; }
/* The grab handle on the left = the arrow-head the child pulls across. */
.match-node__handle {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--subject-accent, #3730a3);
  cursor: grab;
  flex-shrink: 0;
  position: relative;
  touch-action: none;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}
.match-node__handle::after {
  content: '\2192';
  color: #fff;
  font-weight: 700;
  position: absolute;
  inset: 0;
  display: flex; align-items: center; justify-content: center;
}
.match-node__dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: #06b6d4; flex-shrink: 0;
}

/* ---- Reorder grip ------------------------------------------------------- */

.reorder-item__grip {
  cursor: grab;
  touch-action: none;
  padding: 0 var(--space-2);
  color: var(--color-text-secondary);
  font-size: 20px;
  user-select: none;
}

/* ---- Stage stepper ------------------------------------------------------ */

.stage-stepper {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  list-style: none;
  scrollbar-width: none;
}
.stage-stepper::-webkit-scrollbar { display: none; }

.stage-step {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  font: var(--type-caption);
  background: var(--neutral-100);
  color: var(--color-text-secondary);
  white-space: nowrap;
}
:is([data-theme="dark"], [data-theme="midnight"]) .stage-step { background: var(--color-bg-surface); }
.stage-step--done { background: var(--color-success-surface); color: var(--color-success); }
.stage-step--clickable { cursor: pointer; }
.stage-step--clickable:hover { filter: brightness(0.95); }
.stage-step--active {
  background: var(--subject-accent, var(--color-brand-ink));
  color: #fff;
  font-weight: 700;
}

/* ---- Question shell ----------------------------------------------------- */

.question-prompt { font: var(--type-h3); margin-top: var(--space-3); }
.question-body { margin-top: var(--space-4); }

.option-btn {
  justify-content: flex-start;
  text-align: left;
  white-space: normal;
  line-height: 1.5;
  min-height: var(--touch-target-min);
  padding-block: var(--space-3);
}

/* Inside a game (the card the student sees while playing): keep it calm but
   clearly coloured — a soft tint on the question card, and gentle pastel
   answer options. Scoped under .question-body so the colours always win over
   the base .btn--secondary styles (including its hover). */
.card--question {
  background: linear-gradient(160deg, #eef3ff, #dfe7fb);
}

.question-body .option-btn {
  color: #1e293b;
  font-weight: 600;
  border-width: 1px;
}
.question-body .option-btn:nth-child(4n+1) { background: linear-gradient(135deg, #dbeafe, #bfdbfe); border-color: #93c5fd; }
.question-body .option-btn:nth-child(4n+2) { background: linear-gradient(135deg, #dcfce7, #bbf7d0); border-color: #86efac; }
.question-body .option-btn:nth-child(4n+3) { background: linear-gradient(135deg, #fef3c7, #fde68a); border-color: #fcd34d; }
.question-body .option-btn:nth-child(4n+4) { background: linear-gradient(135deg, #f3e8ff, #e9d5ff); border-color: #d8b4fe; }
.question-body .option-btn:hover { filter: brightness(0.96); }
.question-body .option-btn:disabled { opacity: 0.92; }

/* The live XP box: a soft coloured gradient so it feels alive. The up/down
   correct/wrong feedback still shows through the border colour. */
.xp-box {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  border-color: #c7d2fe;
}
.xp-box__value { color: #4f46e5; }

.hint-text {
  font: var(--type-body-sm);
  color: var(--color-text-secondary);
  padding: var(--space-3);
  border-left: 3px solid var(--color-warning);
  background: var(--color-warning-surface);
  border-radius: var(--radius-xs);
}

/* Answer feedback state. Animations.showAnswerFeedback() sets this attribute
   but v16 never styled it, so a correct and an incorrect answer looked
   identical apart from the text. */
.card[data-feedback="correct"] { border-color: var(--color-success); }
.card[data-feedback="incorrect"] { border-color: var(--color-error); }

.feedback { margin-top: var(--space-4); }
.feedback__verdict { font: var(--type-h4); }
.card[data-feedback="correct"] .feedback__verdict { color: var(--color-success); }
.card[data-feedback="incorrect"] .feedback__verdict { color: var(--color-error); }

/* ---- Notices ------------------------------------------------------------ */

.notice { padding: var(--space-4); border-radius: var(--radius-sm); }
.notice--warning { background: var(--color-warning-surface); border-left: 4px solid var(--color-warning); }
.notice--info { background: var(--color-info-surface); }
.notice__title { font: var(--type-h4); margin-bottom: var(--space-2); }
.notice__detail {
  font: var(--type-body-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
  word-break: break-word;
}

/* ---- Theory ------------------------------------------------------------- */

.def-row { margin-top: var(--space-2); }
.exam-tips { border-left: 4px solid var(--subject-accent, var(--color-brand-ink)); }
.fact-panel { min-height: 72px; }

/* ---- Countdown ---------------------------------------------------------- */

.countdown {
  font: var(--type-h3);
  font-family: var(--font-mono);
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}
.countdown--urgent { color: var(--color-error); }

/* ---- Scenario + sequence ------------------------------------------------ */

.scenario-box {
  background: var(--neutral-100);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}
:is([data-theme="dark"], [data-theme="midnight"]) .scenario-box { background: var(--color-bg-surface); }

.sequence-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.sequence-strip__item {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--subject-accent-tint, var(--color-brand-ink-tint));
  font-family: var(--font-mono);
  font-weight: 700;
}
.sequence-strip__item--blank {
  background: transparent;
  border: 2px dashed var(--color-border-strong);
  color: var(--color-text-secondary);
}

/* ---- Typed answers ------------------------------------------------------ */

.input--mono { font-family: var(--font-mono); }

.given-list {
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
  font: var(--type-body-sm);
  color: var(--color-text-secondary);
}
.given-list li { margin-bottom: var(--space-1); }

.code-block {
  background: var(--neutral-950);
  color: #e2e8f0;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre;
  tab-size: 2;
}

/* ---- Reorderable list --------------------------------------------------- */

.reorder-list { list-style: none; margin-bottom: var(--space-4); }
.reorder-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
  background: var(--color-bg-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--motion-quick) var(--ease-out);
}
.reorder-item__label { flex: 1; min-width: 0; }
.reorder-item__controls { display: flex; gap: var(--space-1); flex-shrink: 0; }
.reorder-item__meta { color: var(--color-text-secondary); font-family: var(--font-mono); font-size: 12px; }
.reorder-item--right { border-color: var(--color-success); background: var(--color-success-surface); }
.reorder-item--wrong { border-color: var(--color-error); background: var(--color-error-surface); }

/* ---- Chips (sentence builder, classification, labelling) ---------------- */

.chip-tray,
.sentence-pool,
.sentence-answer {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}
.sentence-answer {
  min-height: 56px;
  padding: var(--space-3);
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}
.sentence-pool { margin-bottom: var(--space-4); }
.chip-tray { margin-bottom: var(--space-4); min-height: 44px; }

.word-chip {
  min-height: 40px;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-surface-solid);
  color: var(--color-text-primary);
  font: var(--type-body-sm);
  cursor: pointer;
  transition: all var(--motion-quick) var(--ease-out);
}
.word-chip:hover:not(:disabled) { border-color: var(--subject-accent, var(--color-brand-ink)); }
.word-chip:disabled { opacity: 0.35; cursor: not-allowed; }
.word-chip--selected {
  background: var(--subject-accent, var(--color-brand-ink));
  border-color: var(--subject-accent, var(--color-brand-ink));
  color: #fff;
}
.word-chip--chosen {
  background: var(--subject-accent-tint, var(--color-brand-ink-tint));
  border-color: var(--subject-accent, var(--color-brand-ink));
}
.word-chip--right { background: var(--color-success-surface); border-color: var(--color-success); color: var(--color-success); opacity: 1; }
.word-chip--wrong { background: var(--color-error-surface); border-color: var(--color-error); color: var(--color-error); opacity: 1; }

/* ---- Classification buckets --------------------------------------------- */

.bucket-grid { display: grid; gap: var(--space-3); grid-template-columns: 1fr; margin-bottom: var(--space-4); }
@media (min-width: 640px) { .bucket-grid { grid-template-columns: repeat(2, 1fr); } }

.bucket {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  min-height: 110px;
  transition: border-color var(--motion-quick) var(--ease-out);
}
.bucket--armed { border-color: var(--subject-accent, var(--color-brand-ink)); cursor: pointer; }
.bucket__title { font: var(--type-h4); margin-bottom: var(--space-3); }
.bucket__items { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ---- Matching ----------------------------------------------------------- */

.match-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin-bottom: var(--space-4); }
.match-col { display: flex; flex-direction: column; gap: var(--space-2); }
.match-col__title { font: var(--type-caption); }

.match-btn {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
  min-height: var(--touch-target-min);
  padding: var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-surface-solid);
  color: var(--color-text-primary);
  font: var(--type-body-sm);
  cursor: pointer;
  transition: all var(--motion-quick) var(--ease-out);
}
.match-btn:disabled { cursor: not-allowed; }
.match-btn--active {
  border-color: var(--subject-accent, var(--color-brand-ink));
  box-shadow: 0 0 0 2px var(--subject-accent-tint, var(--color-brand-ink-tint));
}
.match-btn--paired { background: var(--subject-accent-tint, var(--color-brand-ink-tint)); }
.match-btn__partner { font-size: 12px; color: var(--color-text-secondary); }
.match-btn--right { background: var(--color-success-surface); border-color: var(--color-success); }
.match-btn--wrong { background: var(--color-error-surface); border-color: var(--color-error); }

/* ---- Memory match ------------------------------------------------------- */

.memory-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
}
@media (min-width: 640px) { .memory-board { grid-template-columns: repeat(4, 1fr); } }

.memory-card {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: var(--subject-accent, var(--color-brand-ink));
  color: transparent;
  padding: var(--space-2);
  cursor: pointer;
  font: var(--type-body-sm);
  overflow: hidden;
  transition: background var(--motion-quick) var(--ease-out);
}
.memory-card__face { display: block; opacity: 0; transition: opacity var(--motion-quick) var(--ease-out); }
.memory-card--up,
.memory-card--done { background: var(--color-bg-surface-solid); color: var(--color-text-primary); }
.memory-card--up .memory-card__face,
.memory-card--done .memory-card__face { opacity: 1; }
.memory-card--done { border-color: var(--color-success); background: var(--color-success-surface); cursor: default; }

/* ---- Diagrams ----------------------------------------------------------- */

.diagram-canvas {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--subject-accent-tint, var(--color-brand-ink-tint)), var(--color-bg-surface-solid));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-4);
}
.diagram-canvas__image { width: 100%; height: 100%; object-fit: contain; }

.diagram-point {
  position: absolute;
  transform: translate(-50%, -50%);
  min-width: 34px;
  height: 34px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-pill);
  border: none;
  background: var(--subject-accent, var(--color-brand-ink));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.55);
}
:is([data-theme="dark"], [data-theme="midnight"]) .diagram-point { box-shadow: 0 0 0 5px rgba(0, 0, 0, 0.35); }
.diagram-point--pulse { animation: pulse-ring 2s ease-out infinite; }
.diagram-point--visited,
.diagram-point--right { background: var(--color-success); animation: none; }
.diagram-point--wrong { background: var(--color-error); animation: none; }
.diagram-point--filled { background: var(--color-brand-ink-light); animation: none; }

@media (prefers-reduced-motion: reduce) {
  .diagram-point--pulse { animation: none; }
}

/* ---- Find the mistakes -------------------------------------------------- */

.select-row {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-surface-solid);
  color: var(--color-text-primary);
  font: var(--type-body-md);
  cursor: pointer;
  transition: all var(--motion-quick) var(--ease-out);
}
.select-row--picked {
  border-color: var(--subject-accent, var(--color-brand-ink));
  background: var(--subject-accent-tint, var(--color-brand-ink-tint));
}
.select-row--right { border-color: var(--color-success); background: var(--color-success-surface); }
.select-row--wrong { border-color: var(--color-error); background: var(--color-error-surface); }

/* ---- Flashcards --------------------------------------------------------- */

.flashcard {
  padding: var(--space-6) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--subject-accent-tint, var(--color-brand-ink-tint));
  text-align: center;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}
.flashcard__front { font: var(--type-h2); }
.flashcard__back {
  font: var(--type-body-lg);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-strong);
  width: 100%;
}

/* ---- Summary cards ------------------------------------------------------ */

.summary-card { text-align: center; }
.summary-card--final { padding: var(--space-8) var(--space-5); }
.summary-card__rewards { justify-content: center; margin-top: var(--space-5); }

/* ---- Live XP box (Games practice) --------------------------------------- */
.xp-box {
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: var(--radius-lg, 14px);
  background: var(--color-surface, #ffffff);
  padding: var(--space-3, 12px) var(--space-4, 16px);
  margin-bottom: var(--space-3, 12px);
  text-align: center;
  transition: border-color 0.2s ease;
}
.xp-box__label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted, #6b7280);
}
.xp-box__value {
  display: block;
  margin-top: 2px;
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--subject-accent, #3730a3);
}
.xp-box__change {
  margin: 4px 0 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted, #6b7280);
}
.xp-box--up { border-color: #16a34a; }
.xp-box--up .xp-box__change { color: #16a34a; }
.xp-box--down { border-color: #dc2626; }
.xp-box--down .xp-box__change { color: #dc2626; }

/* ---- Answer feedback FX (emoji + gif; Next reveals after the sound) ------ */
.feedback-fx {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-4) 0 var(--space-2);
  text-align: center;
}
.feedback-fx__emoji {
  font-size: 2.4rem;
  line-height: 1;
  animation: fx-pop 0.32s ease-out both;
}
.feedback-fx__gif {
  max-width: 180px;
  width: 60%;
  height: auto;
  border-radius: var(--radius-lg, 16px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  animation: fx-pop 0.32s ease-out both;
}
@keyframes fx-pop {
  0%   { transform: scale(0.6); opacity: 0; }
  70%  { transform: scale(1.06); opacity: 1; }
  100% { transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .feedback-fx__emoji,
  .feedback-fx__gif { animation: none; }
}