/* Quiz shell + MultipleChoice component */

.quiz-slot {
  background: var(--surface-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .quiz-slot {
    padding: var(--space-6);
  }
}

.quiz-slot__head {
  margin-bottom: var(--space-4);
}

.quiz-slot__title {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: var(--type-h2);
  color: var(--ink);
  margin-bottom: var(--space-3);
}

.quiz-slot__intro {
  font-size: var(--type-lede);
  color: var(--ink-muted);
  line-height: 1.45;
  max-width: 56ch;
}

.quiz-slot__outro {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--line);
  font-size: var(--type-small);
  color: var(--ink-muted);
  line-height: 1.55;
}

.quiz-slot__placeholder {
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  color: var(--ink-muted);
  font-size: var(--type-small);
  text-align: center;
}

.quiz-shell {
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

@media (min-width: 768px) {
  .quiz-shell {
    padding: var(--space-5);
  }
}

.quiz-shell__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.quiz-shell__eyebrow {
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-size: var(--type-micro);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.quiz-shell__prompt {
  font-family: "Fraunces", serif;
  font-weight: 500;
  font-size: var(--type-h3);
  color: var(--ink);
  margin: 0 0 var(--space-5);
  line-height: 1.35;
}

.quiz-shell__reset {
  font-size: var(--type-small);
  color: var(--brand-red);
  background: none;
  border: 0;
  padding: 0;
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
  cursor: pointer;
}

.quiz-shell__reset:hover {
  text-decoration-color: var(--brand-red);
}

.quiz-shell__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line);
  font-size: var(--type-small);
  color: var(--ink-muted);
}

.quiz-shell__score {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
}

.quiz-shell__score-icon {
  width: 18px;
  height: 18px;
  display: none;
}

.quiz-shell.is-correct .quiz-shell__score-icon--correct,
.quiz-shell.is-incorrect .quiz-shell__score-icon--incorrect {
  display: inline-block;
}

.quiz-shell.is-correct .quiz-shell__score { color: var(--success); }
.quiz-shell.is-incorrect .quiz-shell__score { color: var(--error); }

.quiz-shell__actions {
  display: flex;
  gap: var(--space-4);
}

/* Multiple choice options */

.mc-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.mc-fieldset legend {
  position: absolute;
  left: -10000px;
}

.mc-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.mc-option {
  position: relative;
}

.mc-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mc-option label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--quiz-option-padding);
  background: var(--quiz-option-bg);
  border: 1px solid var(--quiz-option-border);
  border-radius: var(--quiz-option-radius);
  min-height: 44px;
  cursor: pointer;
  transition: background var(--motion-fast) var(--easing),
    border-color var(--motion-fast) var(--easing),
    box-shadow var(--motion-fast) var(--easing);
  font-size: var(--type-body);
  line-height: 1.5;
}

.mc-option label:hover {
  background: var(--surface-alt);
  border-color: var(--quiz-option-border-hover);
}

.mc-option__dot {
  flex: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--line-strong);
  border-radius: 50%;
  margin-top: 2px;
  background: var(--surface);
  transition: border-color var(--motion-fast) var(--easing),
    background var(--motion-fast) var(--easing);
  position: relative;
}

.mc-option input[type="radio"]:checked ~ label {
  background: var(--quiz-option-selected-bg);
  border-color: var(--quiz-option-selected-border);
  box-shadow: var(--quiz-option-selected-ring);
}

.mc-option input[type="radio"]:checked ~ label .mc-option__dot {
  border-color: var(--brand-red);
}

.mc-option input[type="radio"]:checked ~ label .mc-option__dot::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--brand-red);
  border-radius: 50%;
}

.mc-option input[type="radio"]:focus-visible ~ label {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.mc-option__text {
  flex: 1;
}

.mc-option__icon {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  display: none;
}

/* State-driven styling. Controlled by JS: .is-correct and .is-incorrect classes on the mc-option. */

.mc-option.is-correct label,
.mc-option.is-correct input[type="radio"]:checked ~ label {
  background: var(--quiz-option-correct-bg);
  border-color: var(--quiz-option-correct-border);
  box-shadow: none;
}

.mc-option.is-correct .mc-option__icon--correct {
  display: inline-block;
  color: var(--success);
}

.mc-option.is-correct .mc-option__dot,
.mc-option.is-correct input[type="radio"]:checked ~ label .mc-option__dot {
  border-color: var(--success);
}
.mc-option.is-correct .mc-option__dot::after,
.mc-option.is-correct input[type="radio"]:checked ~ label .mc-option__dot::after {
  background: var(--success) !important;
}

.mc-option.is-incorrect label,
.mc-option.is-incorrect input[type="radio"]:checked ~ label {
  background: var(--quiz-option-incorrect-bg);
  border-color: var(--quiz-option-incorrect-border);
  box-shadow: none;
}

.mc-option.is-incorrect .mc-option__icon--incorrect {
  display: inline-block;
  color: var(--error);
}

.mc-option.is-incorrect .mc-option__dot,
.mc-option.is-incorrect input[type="radio"]:checked ~ label .mc-option__dot {
  border-color: var(--error);
}
.mc-option.is-incorrect .mc-option__dot::after,
.mc-option.is-incorrect input[type="radio"]:checked ~ label .mc-option__dot::after {
  background: var(--error) !important;
}

.mc-option.is-revealed-correct label {
  background: var(--quiz-option-correct-bg);
  border-color: var(--quiz-option-correct-border);
}
.mc-option.is-revealed-correct .mc-option__icon--correct {
  display: inline-block;
  color: var(--success);
}

.mc-option.is-disabled label {
  opacity: var(--quiz-option-disabled-opacity);
  cursor: not-allowed;
  pointer-events: none;
}

.mc-explanation {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--surface-alt);
  border-left: 4px solid var(--brand-red);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--type-small);
  color: var(--ink-muted);
  line-height: 1.55;
  display: none;
}

.mc-explanation.is-visible {
  display: block;
}

/* ------------------------------------------------------------------ */
/* Drag to order                                                      */
/* ------------------------------------------------------------------ */

.quiz-shell__help {
  font-size: var(--type-small);
  color: var(--ink-muted);
  margin: calc(-1 * var(--space-3)) 0 var(--space-4);
}

.quiz-shell__live {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.dto-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.dto-item {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  min-height: 48px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  cursor: grab;
  user-select: none;
  transition: background var(--motion-fast) var(--easing),
    border-color var(--motion-fast) var(--easing),
    box-shadow var(--motion-fast) var(--easing),
    transform var(--motion-fast) var(--easing);
}

.dto-item:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.dto-item.is-grabbed {
  background: var(--surface-alt);
  border-color: var(--brand-red);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
  cursor: grabbing;
  transform: translateY(-2px);
}

.dto-item.is-drag-target {
  border-color: var(--brand-red);
  box-shadow: 0 0 0 2px var(--brand-red-light);
}

.dto-item__handle {
  color: var(--ink-subtle);
  display: inline-flex;
}

.dto-item__num {
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink-muted);
  font-size: var(--type-small);
  min-width: 20px;
  text-align: right;
}

.dto-item__label {
  font-size: var(--type-body);
  color: var(--ink);
}

.dto-item__result {
  display: none;
}

.dto-item.is-correct {
  background: var(--quiz-option-correct-bg, #e8f4ec);
  border-color: var(--success);
}

.dto-item.is-correct .dto-item__result,
.dto-item.is-incorrect .dto-item__result {
  display: inline-flex;
}

.dto-item.is-correct .dto-item__result-icon--correct {
  display: inline-block;
  color: var(--success);
}
.dto-item.is-correct .dto-item__result-icon--incorrect { display: none; }

.dto-item.is-incorrect {
  background: var(--quiz-option-incorrect-bg, #fbecec);
  border-color: var(--error);
}
.dto-item.is-incorrect .dto-item__result-icon--incorrect {
  display: inline-block;
  color: var(--error);
}
.dto-item.is-incorrect .dto-item__result-icon--correct { display: none; }

.dto-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

/* ------------------------------------------------------------------ */
/* Hazard spot                                                        */
/* ------------------------------------------------------------------ */

.hs-progress {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.hs-progress__bar {
  flex: 1;
  height: 8px;
  background: var(--surface-alt);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.hs-progress__bar span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--success);
  transition: width var(--motion-fast) var(--easing);
}

.hs-progress__label {
  font-size: var(--type-small);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.hs-figure {
  margin: 0 0 var(--space-4);
}

.hs-scene {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #cfe3f5;
  line-height: 0;
}

.hs-scene__svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
}

.hs-spot {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
}

.hs-spot::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.hs-spot__marker {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px dashed transparent;
  transition: border-color var(--motion-fast) var(--easing),
    background var(--motion-fast) var(--easing);
}

.hs-spot:hover .hs-spot__marker,
.hs-spot:focus-visible .hs-spot__marker {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.08);
}

.hs-spot:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.hs-spot.is-found .hs-spot__marker {
  background: rgba(49, 153, 95, 0.35);
  border: 3px solid var(--success);
  animation: hs-pulse 0.5s ease-out;
}

@keyframes hs-pulse {
  0% { transform: scale(0.6); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.hs-miss-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hs-miss {
  position: absolute;
  width: 32px;
  height: 32px;
  transform: translate(-50%, -50%);
  border: 2px solid var(--error);
  background: rgba(200, 60, 60, 0.35);
  border-radius: 50%;
  pointer-events: none;
  animation: hs-miss-fade 1.5s ease-out forwards;
}

@keyframes hs-miss-fade {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(0.6); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.2); }
}

.hs-figure__caption {
  font-size: var(--type-small);
  color: var(--ink-muted);
  margin-top: var(--space-2);
  line-height: 1.5;
}

.hs-list {
  margin: var(--space-4) 0;
  padding: var(--space-4);
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: var(--type-small);
}

.hs-list summary {
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}

.hs-list p {
  margin: var(--space-2) 0;
  color: var(--ink-muted);
}

.hs-list__items {
  list-style: none;
  padding: 0;
  margin: var(--space-3) 0 0;
  display: grid;
  gap: var(--space-2);
}

.hs-list__btn {
  text-align: left;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--ink);
  transition: background var(--motion-fast) var(--easing),
    border-color var(--motion-fast) var(--easing);
}

.hs-list__btn:hover,
.hs-list__btn:focus-visible {
  background: var(--surface-alt);
  border-color: var(--line-strong);
}

.hs-list__btn.is-found {
  background: rgba(49, 153, 95, 0.12);
  border-color: var(--success);
  color: var(--success);
}

@media (prefers-reduced-motion: reduce) {
  .hs-spot.is-found .hs-spot__marker,
  .hs-miss {
    animation: none;
  }
}