/* ===================================
   Shared Styles - Common across all pages
   =================================== */

/* ===================================
   Training Mode Color Palette
   (Shared between training.css and analysis.css)
   =================================== */

:root {
  /* Move quality colors (Chess.com inspired) */
  --move-best: #96bc4b;
  --move-best-bg: rgba(150, 188, 75, 0.15);
  --move-good: #8bc44a;
  --move-good-bg: rgba(139, 196, 74, 0.15);
  --move-inaccuracy: #f7c631;
  --move-inaccuracy-bg: rgba(247, 198, 49, 0.15);
  --move-mistake: #e6912c;
  --move-mistake-bg: rgba(230, 145, 44, 0.15);
  --move-blunder: #ca3431;
  --move-blunder-bg: rgba(202, 52, 49, 0.15);
  
  /* Evaluation colors */
  --eval-positive: #4ade80;
  --eval-negative: #f87171;
  --eval-neutral: #94a3b8;
}


/* ===================================
   Common 3-Column Layout
   =================================== */

.training-content,
.analysis-content {
  flex: 1;
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-xl);
  margin: 0 auto;
  width: 100%;
  align-items: start;
}

.training-content {
  grid-template-columns: 280px 1fr 320px;
  max-width: 1500px;
}

.analysis-content {
  grid-template-columns: 300px 1fr 320px;
  max-width: 1550px;
}

@media (max-width: 1400px) {
  .training-content,
  .analysis-content {
    grid-template-columns: 1fr;
    max-width: 800px;
  }
  
  .training-left-panel,
  .training-right-panel,
  .analysis-left-panel,
  .analysis-right-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
  }
}

/* ===================================
   Common Panel Styles
   =================================== */

.training-left-panel,
.training-right-panel,
.analysis-left-panel,
.analysis-right-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ===================================
   Common Button Styles
   =================================== */

.btn-hint {
  background: linear-gradient(135deg, var(--move-best), #7ba63d);
  color: white;
  font-weight: 600;
}

.btn-hint:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-analysis-link,
.btn-training-link {
  text-decoration: none;
}

/* ===================================
   Common Evaluation Styles
   =================================== */

/* Horizontal Evaluation Bar */
.evaluation-bar-container {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.evaluation-bar {
  width: 160px;
  height: 24px;
  background: linear-gradient(90deg, var(--eval-negative) 0%, var(--eval-negative) 50%, var(--eval-positive) 50%, var(--eval-positive) 100%);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.eval-fill {
  position: absolute;
  top: 0;
  height: 100%;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.eval-fill.player1 {
  left: 50%;
  width: 0%;
  background: var(--player1);
}

.eval-fill.player2 {
  right: 50%;
  width: 0%;
  background: var(--player2);
}

.eval-center-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: white;
  transform: translateX(-50%);
  opacity: 0.8;
  z-index: 2;
}

.eval-value {
  font-size: 0.875rem;
  font-weight: 700;
  min-width: 40px;
  text-align: center;
  color: var(--text);
}

.eval-value.positive {
  color: var(--eval-positive);
}

.eval-value.negative {
  color: var(--eval-negative);
}

/* ===================================
   Eval Info Button & Tooltip
   =================================== */

.eval-info-wrapper {
  position: relative;
}

.eval-info-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}

.eval-info-btn:hover,
.eval-info-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.eval-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  background: #1a1a25;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  z-index: 100;
  font-size: 0.82rem;
  color: var(--text);
}

.eval-tooltip.hidden {
  display: none;
}

.eval-tooltip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-weight: 600;
  font-size: 0.83rem;
  gap: 8px;
}

.eval-tooltip-header i {
  color: var(--primary);
}

.eval-tooltip-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  line-height: 1;
  display: flex;
  align-items: center;
}

.eval-tooltip-close:hover {
  color: var(--text);
}

.eval-tooltip-body {
  padding: 10px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eval-tooltip-body p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.4;
}

.eval-tooltip-legend {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.eval-legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
}

.eval-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.eval-legend-dot.p1 {
  background: var(--player1);
}

.eval-legend-dot.p2 {
  background: var(--player2);
}

.eval-tooltip-scale ul {
  margin: 4px 0 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text-muted);
}

.eval-tooltip-scale p {
  margin: 0;
  color: var(--text-muted);
}

/* ===================================
   Common Move Quality Styles
   =================================== */

.move-stat,
.quality-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
}

.move-stat.best,
.quality-row.best {
  border-left-color: var(--move-best);
}

.move-stat.good,
.quality-row.good {
  border-left-color: var(--move-good);
}

.move-stat.inaccuracy,
.quality-row.inaccuracy {
  border-left-color: var(--move-inaccuracy);
}

.move-stat.mistake,
.quality-row.mistake {
  border-left-color: var(--move-mistake);
}

.move-stat.blunder,
.quality-row.blunder {
  border-left-color: var(--move-blunder);
}

/* Icon colors */
.move-stat.best .move-stat-icon,
.quality-row.best .quality-icon { color: var(--move-best); }

.move-stat.good .move-stat-icon,
.quality-row.good .quality-icon { color: var(--move-good); }

.move-stat.inaccuracy .move-stat-icon,
.quality-row.inaccuracy .quality-icon { color: var(--move-inaccuracy); }

.move-stat.mistake .move-stat-icon,
.quality-row.mistake .quality-icon { color: var(--move-mistake); }

.move-stat.blunder .move-stat-icon,
.quality-row.blunder .quality-icon { color: var(--move-blunder); }

/* Value colors */
.move-stat.best .move-stat-value,
.quality-row.best .quality-value { color: var(--move-best); }

.move-stat.good .move-stat-value,
.quality-row.good .quality-value { color: var(--move-good); }

.move-stat.inaccuracy .move-stat-value,
.quality-row.inaccuracy .quality-value { color: var(--move-inaccuracy); }

.move-stat.mistake .move-stat-value,
.quality-row.mistake .quality-value { color: var(--move-mistake); }

.move-stat.blunder .move-stat-value,
.quality-row.blunder .quality-value { color: var(--move-blunder); }

/* ===================================
   Common Moves List Styles
   =================================== */

.moves-section {
  max-height: 250px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.moves-list {
  flex: 1;
  overflow-y: auto;
  padding-right: var(--space-sm);
}

.moves-empty {
  text-align: center;
  padding: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.move-pair {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
}

.move-number {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 24px;
}

.move {
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  flex: 1;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.move:hover {
  filter: brightness(1.2);
}

.move.player1 {
  background: rgba(244, 63, 94, 0.2);
  color: var(--player1);
}

.move.player2 {
  background: rgba(250, 204, 21, 0.2);
  color: var(--player2);
}

.move.best::after { content: " ✓✓"; color: var(--move-best); }
.move.good::after { content: " ✓"; color: var(--move-good); }
.move.inaccuracy::after { content: " ?!"; color: var(--move-inaccuracy); }
.move.mistake::after { content: " ?"; color: var(--move-mistake); }
.move.blunder::after { content: " ??"; color: var(--move-blunder); }

.move.current {
  box-shadow: 0 0 0 2px var(--accent);
}

/* ===================================
   Common Chart Section Styles
   =================================== */

.chart-section {
  min-height: 180px;
}

.evaluation-chart-container {
  height: 140px;
  position: relative;
}

/* ===================================
   Common Session/Summary Stats
   =================================== */

.session-stats,
.game-summary-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.session-stat,
.summary-stat {
  text-align: center;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.session-stat-value,
.stat-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-light);
}

.session-stat-value.accuracy,
.stat-value.accuracy {
  color: var(--move-best);
}

.session-stat-label,
.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================================
   Common Feedback Panel
   =================================== */

.feedback-panel {
  width: 100%;
  max-width: calc(7 * var(--cell-size) + 6 * var(--cell-gap) + 2 * var(--board-padding));
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  transition: all var(--transition-normal);
}

.feedback-content {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.feedback-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  flex-shrink: 0;
  transition: all var(--transition-normal);
  background: var(--surface-hover);
  color: var(--text-secondary);
}

.feedback-icon.best {
  background: var(--move-best-bg);
  color: var(--move-best);
}

.feedback-icon.good {
  background: var(--move-good-bg);
  color: var(--move-good);
}

.feedback-icon.inaccuracy {
  background: var(--move-inaccuracy-bg);
  color: var(--move-inaccuracy);
}

.feedback-icon.mistake {
  background: var(--move-mistake-bg);
  color: var(--move-mistake);
}

.feedback-icon.blunder {
  background: var(--move-blunder-bg);
  color: var(--move-blunder);
}

.feedback-text h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
  color: var(--text);
}

.feedback-text p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===================================
   Common Scrollbar Styling
   =================================== */

.moves-list::-webkit-scrollbar {
  width: 6px;
}

.moves-list::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 3px;
}

.moves-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.moves-list::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* ===================================
   Common Animations
   =================================== */

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

.feedback-panel.animate {
  animation: feedbackSlideIn 0.3s ease-out;
}

@keyframes evalPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.eval-value.changing {
  animation: evalPulse 0.5s ease-in-out;
}

/* ===================================
   Common Modal Styles
   =================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.visible {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 450px;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-overlay.visible .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 600;
}

.modal-header h3 i {
  color: var(--accent);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  color: var(--text);
  background: var(--surface);
}

.modal-body {
  padding: var(--space-lg);
}

.modal-body label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.modal-body .text-input {
  width: 100%;
  margin-bottom: var(--space-sm);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-top: 1px solid var(--border);
}