/* KC Engine — Interactive Assessment Experience */

.kce-engine {
  max-width: 740px;
  margin: 0 auto;
}

/* Start screen */
.kce-start {
  background: #0F2B3C;
  border: 1px solid #1a3f55;
  border-radius: 12px;
  padding: 48px 32px;
  text-align: center;
}
.kce-start-icon { margin-bottom: 16px; }
.kce-start-title {
  font-size: 22px;
  font-weight: 700;
  color: #f1f5f9;
  margin: 0 0 12px;
}
.kce-start-desc {
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.65;
  margin: 0 0 24px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}
.kce-start-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
  color: #64748b;
  margin-bottom: 28px;
}
.kce-meta-item strong { color: #e2e8f0; }
.kce-meta-sep { color: #334155; }
.kce-start-btn {
  background: #E86A2A;
  color: #fff;
  border: none;
  padding: 12px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.kce-start-btn:hover { background: #d45d22; }

/* Progress bar */
.kce-progress-bar {
  height: 4px;
  background: #e3dacc;
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 8px;
}
.kce-progress-fill {
  height: 100%;
  background: #E86A2A;
  border-radius: 2px;
  transition: width 0.4s ease;
}
.kce-progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: #3d3224;
  margin-bottom: 20px;
}
.kce-timer {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 12px;
  color: #6b5d4d;
}

/* Question screen */
.kce-question-body {
  background: #e3dacc;
  border: 1px solid #d4cbbe;
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
.kce-scenario-label {
  font-size: 11px;
  font-weight: 700;
  color: #E86A2A;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.kce-scenario-text {
  font-size: 14px;
  color: #1a1612;
  line-height: 1.7;
  margin: 0;
}

/* Options */
.kce-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.kce-option {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #f5f3ed;
  border: 2px solid #d4cbbe;
  border-radius: 10px;
  padding: 14px 18px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  text-align: left;
  font-family: inherit;
  font-size: 14px;
  color: #1a1612;
  line-height: 1.6;
  width: 100%;
}
.kce-option:hover {
  border-color: #E86A2A;
  background: #fef7f3;
  transform: translateX(2px);
}
.kce-option-letter {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e3dacc;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #3d3224;
  transition: background 0.15s, color 0.15s;
}
.kce-option:hover .kce-option-letter {
  background: #E86A2A;
  color: #fff;
}
.kce-option-text { flex: 1; padding-top: 3px; }

/* Locked state (after answering) */
.kce-option.kce-locked {
  pointer-events: none;
  opacity: 0.6;
  transform: none;
}
.kce-option.kce-correct {
  opacity: 1;
  border-color: #059669;
  background: rgba(5, 150, 105, 0.06);
}
.kce-option.kce-correct .kce-option-letter {
  background: #059669;
  color: #fff;
}
.kce-option.kce-wrong {
  opacity: 1;
  border-color: #dc2626;
  background: rgba(220, 38, 38, 0.06);
}
.kce-option.kce-wrong .kce-option-letter {
  background: #dc2626;
  color: #fff;
}

/* Feedback overlay */
.kce-feedback {
  margin-top: 20px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #d4cbbe;
}
.kce-feedback-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 700;
}
.kce-feedback-correct .kce-feedback-header {
  background: rgba(5, 150, 105, 0.1);
  color: #059669;
}
.kce-feedback-incorrect .kce-feedback-header {
  background: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}
.kce-feedback-icon { font-size: 20px; }
.kce-feedback-wrong,
.kce-feedback-right {
  padding: 14px 20px;
  border-top: 1px solid #d4cbbe;
}
.kce-feedback-wrong { background: rgba(220, 38, 38, 0.03); }
.kce-feedback-right { background: rgba(5, 150, 105, 0.03); }
.kce-feedback-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  color: #6b5d4d;
}
.kce-feedback-wrong p,
.kce-feedback-right p {
  font-size: 14px;
  color: #1a1612;
  line-height: 1.6;
  margin: 0 0 6px;
}
.kce-feedback-expl {
  font-size: 13px !important;
  color: #3d3224 !important;
  font-style: italic;
}
.kce-next-btn {
  display: block;
  width: 100%;
  background: #0F2B3C;
  color: #fff;
  border: none;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.kce-next-btn:hover { background: #1a3f55; }

/* Results screen */
.kce-results { padding: 0 0 20px; }
.kce-results-header {
  text-align: center;
  padding: 32px 24px;
  border-radius: 12px;
  border: 2px solid;
  margin-bottom: 24px;
}
.kce-results-score {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
}
.kce-results-pct {
  font-size: 18px;
  font-weight: 600;
  margin-top: 4px;
}
.kce-results-grade {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 8px;
}
.kce-results-time {
  font-size: 13px;
  color: #6b5d4d;
  margin-top: 8px;
}
.kce-results-breakdown {
  background: #f5f3ed;
  border: 1px solid #d4cbbe;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.kce-results-breakdown h4 {
  margin: 0 0 12px;
  font-size: 14px;
  color: #1a1612;
}
.kce-result-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #e3dacc;
  font-size: 13px;
  color: #3d3224;
}
.kce-result-row:last-child { border-bottom: none; }
.kce-result-icon { font-size: 16px; font-weight: 700; flex-shrink: 0; }
.kce-result-num { font-weight: 700; color: #1a1612; flex-shrink: 0; width: 28px; }
.kce-result-preview { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kce-result-time {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 12px;
  color: #6b5d4d;
}
.kce-result-wrong { background: rgba(220, 38, 38, 0.04); border-radius: 6px; padding: 8px 10px; }

/* Review section */
.kce-review {
  background: #e3dacc;
  border: 1px solid #d4cbbe;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.kce-review h4 {
  margin: 0 0 14px;
  font-size: 14px;
  color: #1a1612;
}
.kce-review-item {
  padding: 12px 0;
  border-bottom: 1px solid #d4cbbe;
}
.kce-review-item:last-child { border-bottom: none; }
.kce-review-q {
  font-size: 13px;
  color: #1a1612;
  line-height: 1.5;
  margin-bottom: 6px;
}
.kce-review-answer {
  font-size: 13px;
  color: #059669;
  line-height: 1.5;
  margin-bottom: 4px;
}
.kce-review-expl {
  font-size: 12px;
  color: #3d3224;
  line-height: 1.5;
  font-style: italic;
}
.kce-restart-btn {
  display: block;
  width: 100%;
  background: #e3dacc;
  color: #1a1612;
  border: 2px solid #d4cbbe;
  padding: 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.kce-restart-btn:hover {
  border-color: #E86A2A;
  background: #fef7f3;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .kce-start { padding: 28px 20px; }
  .kce-start-title { font-size: 18px; }
  .kce-start-meta { flex-wrap: wrap; font-size: 12px; }
  .kce-question-body { padding: 16px; }
  .kce-option { padding: 12px 14px; font-size: 13px; }
  .kce-option-letter { width: 24px; height: 24px; font-size: 12px; }
  .kce-results-score { font-size: 32px; }
  .kce-result-preview { display: none; }
}

/* Dark mode */
[data-theme="dark"] .kce-start { background: #1a2a3a; border-color: #1a3348; }
[data-theme="dark"] .kce-start-title { color: #e2e8f0; }
[data-theme="dark"] .kce-start-desc { color: #94a3b8; }
[data-theme="dark"] .kce-start-meta { color: #94a3b8; }
[data-theme="dark"] .kce-question-body { background: #1a2a3a; border-color: #1a3348; }
[data-theme="dark"] .kce-scenario-text { color: #e2e8f0; }
[data-theme="dark"] .kce-option { background: #112436; border-color: #1a3348; color: #cbd5e1; }
[data-theme="dark"] .kce-option:hover { border-color: #E86A2A; background: #1a2e42; }
[data-theme="dark"] .kce-option-letter { background: #1a3348; color: #94a3b8; }
[data-theme="dark"] .kce-results-breakdown { background: #112436; border-color: #1a3348; }
[data-theme="dark"] .kce-review { background: #1a2a3a; border-color: #1a3348; }