/* Memory Trace - Game-specific styles */

/* ===== Game Container ===== */
#mt-game {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  min-height: 400px;
}

/* ===== Phase containers ===== */
.mt-phase {
  display: none;
  width: 100%;
}

.mt-phase.active {
  display: block;
}

/* ===== Start Screen ===== */
#mt-start {
  text-align: center;
  padding: 40px 20px;
}

#mt-start h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 12px;
}

#mt-start h2:after {
  display: none;
}

.mt-subtitle {
  color: var(--text-light);
  font-size: 1.05rem;
  margin-bottom: 28px;
  line-height: 1.7;
}

.mt-how-to {
  text-align: left;
  background: var(--sidebar-bg);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 0 auto 28px;
  max-width: 480px;
}

.mt-how-to h3 {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--primary-color);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mt-how-to ol {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 0;
}

.mt-how-to ol li {
  counter-increment: step;
  padding: 6px 0 6px 32px;
  position: relative;
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.mt-how-to ol li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 6px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mt-strength-legend {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin: 20px 0;
}

.mt-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.mt-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.mt-legend-dot--strong {
  background: #5b8fd9;
  box-shadow: 0 0 8px rgba(91, 143, 217, 0.6);
}

.mt-legend-dot--weak {
  background: #00d68f;
  box-shadow: 0 0 6px rgba(0, 214, 143, 0.4);
}

/* ===== HUD Bar ===== */
.mt-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--sidebar-bg);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
}

.mt-hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.mt-hud-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-light);
  opacity: 0.7;
}

.mt-hud-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-color);
}

.mt-hud-value--green {
  color: #00d68f;
}

.mt-hud-value--amber {
  color: #f5a623;
}

/* ===== Grid ===== */
.mt-grid-wrapper {
  display: flex;
  justify-content: center;
  padding: 20px 0;
}

.mt-grid {
  display: grid;
  gap: 8px;
}

.mt-grid--4 {
  grid-template-columns: repeat(4, 1fr);
  width: 320px;
}

.mt-grid--5 {
  grid-template-columns: repeat(5, 1fr);
  width: 370px;
}

.mt-grid--6 {
  grid-template-columns: repeat(6, 1fr);
  width: 420px;
}

.mt-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 10px;
  background: var(--sidebar-bg);
  border: 2px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  color: transparent;
  cursor: default;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.1s ease, box-shadow 0.3s ease;
  user-select: none;
  position: relative;
  overflow: hidden;
}

/* Study phase: cell lighting up */
.mt-cell.study-active {
  color: #fff;
  transform: scale(1.05);
}

.mt-cell.study-strong {
  border-color: #5b8fd9;
  background: rgba(91, 143, 217, 0.15);
  box-shadow: 0 0 20px rgba(91, 143, 217, 0.5), 0 0 40px rgba(91, 143, 217, 0.2), inset 0 0 15px rgba(91, 143, 217, 0.15);
  animation: pulse-strong 0.8s ease-in-out infinite alternate;
}

.mt-cell.study-weak {
  border-color: #00d68f;
  background: rgba(0, 214, 143, 0.08);
  box-shadow: 0 0 10px rgba(0, 214, 143, 0.3), inset 0 0 8px rgba(0, 214, 143, 0.08);
  animation: pulse-weak 0.6s ease-in-out infinite alternate;
}

@keyframes pulse-strong {
  0% { box-shadow: 0 0 20px rgba(91, 143, 217, 0.5), 0 0 40px rgba(91, 143, 217, 0.2); }
  100% { box-shadow: 0 0 28px rgba(91, 143, 217, 0.7), 0 0 56px rgba(91, 143, 217, 0.3); }
}

@keyframes pulse-weak {
  0% { box-shadow: 0 0 10px rgba(0, 214, 143, 0.3); }
  100% { box-shadow: 0 0 16px rgba(0, 214, 143, 0.45); }
}

/* Recall phase: clickable cells */
.mt-cell.recall-ready {
  cursor: pointer;
  border-color: var(--border-light);
  color: transparent;
}

.mt-cell.recall-ready:hover {
  border-color: var(--accent-color);
  background: rgba(91, 143, 217, 0.08);
  transform: scale(1.04);
}

.mt-cell.recall-ready:active {
  transform: scale(0.96);
}

/* Recall feedback */
.mt-cell.recall-correct {
  border-color: #00d68f;
  background: rgba(0, 214, 143, 0.2);
  box-shadow: 0 0 16px rgba(0, 214, 143, 0.4);
  color: #fff;
  cursor: default;
  animation: flash-correct 0.4s ease;
}

.mt-cell.recall-wrong {
  border-color: #ff6b6b;
  background: rgba(255, 107, 107, 0.2);
  box-shadow: 0 0 16px rgba(255, 107, 107, 0.4);
  cursor: default;
  animation: flash-wrong 0.4s ease;
}

.mt-cell.recall-missed {
  border-color: #f5a623;
  background: rgba(245, 166, 35, 0.1);
  color: var(--text-light);
  opacity: 0.6;
  cursor: default;
}

@keyframes flash-correct {
  0% { transform: scale(1.1); }
  50% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

@keyframes flash-wrong {
  0%, 20%, 40% { transform: translateX(-3px); }
  10%, 30% { transform: translateX(3px); }
  50%, 100% { transform: translateX(0); }
}

/* Sequence number badge */
.mt-cell-badge {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.mt-cell.recall-correct .mt-cell-badge,
.mt-cell.recall-missed .mt-cell-badge {
  opacity: 1;
}

/* ===== Study phase instruction ===== */
.mt-study-instruction {
  text-align: center;
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 8px;
  min-height: 28px;
}

.mt-study-counter {
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== Distractor Phase ===== */
#mt-distractor {
  text-align: center;
  padding: 40px 20px;
}

.mt-distractor-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.4rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.mt-distractor-desc {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.mt-math-problem {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.02em;
}

.mt-math-input-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 16px;
}

#mt-math-input {
  width: 120px;
  padding: 12px 16px;
  font-size: 1.3rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-align: center;
  background: var(--sidebar-bg);
  border: 2px solid var(--border-light);
  border-radius: 10px;
  color: var(--text-dark);
  outline: none;
  transition: border-color 0.2s ease;
}

#mt-math-input:focus {
  border-color: var(--accent-color);
}

#mt-math-input.correct {
  border-color: #00d68f;
  background: rgba(0, 214, 143, 0.08);
}

#mt-math-input.wrong {
  border-color: #ff6b6b;
  background: rgba(255, 107, 107, 0.08);
}

.mt-distractor-timer {
  width: 100%;
  max-width: 300px;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin: 0 auto 12px;
}

[data-theme="light"] .mt-distractor-timer {
  background: rgba(0, 0, 0, 0.08);
}

.mt-distractor-timer-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--neural-gradient);
  transition: width 0.2s linear;
}

.mt-distractor-stats {
  color: var(--text-light);
  font-size: 0.8rem;
  opacity: 0.7;
}

/* ===== Recall Phase ===== */
.mt-recall-instruction {
  text-align: center;
  margin-bottom: 12px;
}

.mt-recall-instruction p {
  text-align: center;
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.mt-recall-progress {
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== Round Results ===== */
#mt-results {
  text-align: center;
  padding: 30px 20px;
}

.mt-results-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.6rem;
  color: var(--primary-color);
  margin-bottom: 4px;
}

.mt-results-subtitle {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.mt-score-display {
  font-size: 2.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #5b8fd9 0%, #00d68f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 8px 0 20px;
}

.mt-results-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 360px;
  margin: 0 auto 24px;
}

.mt-result-stat {
  background: var(--sidebar-bg);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 14px 12px;
}

.mt-result-stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
}

.mt-result-stat-value--green { color: #00d68f; }
.mt-result-stat-value--red { color: #ff6b6b; }
.mt-result-stat-value--blue { color: #5b8fd9; }

.mt-result-stat-label {
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* Serial position detail */
.mt-serial-detail {
  max-width: 420px;
  margin: 0 auto 24px;
}

.mt-serial-detail h4 {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.mt-serial-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.85rem;
}

.mt-serial-row:last-child {
  border-bottom: none;
}

.mt-serial-pos {
  width: 24px;
  color: var(--text-light);
  font-weight: 600;
  text-align: center;
}

.mt-serial-word {
  flex: 1;
  color: var(--text-dark);
  font-weight: 500;
}

.mt-serial-type {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
}

.mt-serial-type--strong {
  background: rgba(91, 143, 217, 0.15);
  color: #5b8fd9;
}

.mt-serial-type--weak {
  background: rgba(0, 214, 143, 0.15);
  color: #00d68f;
}

.mt-serial-result {
  font-size: 0.8rem;
  font-weight: 600;
  width: 20px;
  text-align: center;
}

.mt-serial-result--hit { color: #00d68f; }
.mt-serial-result--miss { color: #ff6b6b; }

/* ===== Game Over ===== */
#mt-gameover {
  text-align: center;
  padding: 40px 20px;
}

.mt-gameover-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.mt-gameover-summary {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.mt-final-score {
  font-size: 3.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #5b8fd9 0%, #00d68f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0 0 24px;
}

.mt-gameover-stats {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.mt-go-stat {
  background: var(--sidebar-bg);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 14px 20px;
  min-width: 100px;
}

.mt-go-stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-color);
}

.mt-go-stat-label {
  font-size: 0.72rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* ===== Shared Buttons ===== */
.mt-btn {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(135deg, #5b8fd9 0%, #00d68f 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.1s ease;
  font-family: 'Inter', sans-serif;
}

.mt-btn:hover {
  opacity: 0.85;
  transform: scale(1.02);
}

.mt-btn:active {
  transform: scale(0.97);
}

.mt-btn--secondary {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--border-light);
  padding: 10px 24px;
  font-size: 0.9rem;
  margin-top: 10px;
}

.mt-btn--secondary:hover {
  border-color: var(--primary-color);
  opacity: 1;
}

/* ===== Lives / Fails indicator ===== */
.mt-lives {
  display: flex;
  gap: 6px;
}

.mt-life {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff6b6b;
  opacity: 0.25;
  transition: opacity 0.3s ease;
}

.mt-life.used {
  opacity: 1;
}

/* ===== Fade transitions ===== */
.mt-fade-in {
  animation: mt-fadeIn 0.4s ease;
}

@keyframes mt-fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .mt-grid--4 { width: 260px; gap: 6px; }
  .mt-grid--5 { width: 300px; gap: 5px; }
  .mt-grid--6 { width: 336px; gap: 4px; }

  .mt-cell { border-radius: 8px; font-size: 0.7rem; }

  #mt-start h2 { font-size: 1.7rem; }
  .mt-math-problem { font-size: 2rem; }
  .mt-score-display { font-size: 2.2rem; }
  .mt-final-score { font-size: 2.5rem; }

  .mt-results-breakdown { grid-template-columns: 1fr 1fr; gap: 8px; }
  .mt-gameover-stats { gap: 10px; }
  .mt-go-stat { min-width: 80px; padding: 10px 14px; }

  .mt-strength-legend { flex-direction: column; align-items: center; gap: 8px; }
}