/* ============================================================
 * Thai Tone Visual Indicators - SVG-based pitch contours
 * Version: 2.0.0
 * ============================================================ */

/* Tone indicator container */
.tone-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 4px;
  background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: relative;
  margin-right: 8px;
}

/* SVG styling */
.tone-indicator svg {
  width: 24px;
  height: 24px;
}

/* Tone-specific background colors (subtle) */
.tone-indicator.mid {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.tone-indicator.low {
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
}

.tone-indicator.falling {
  background: linear-gradient(135deg, #fce4ec 0%, #f8bbd0 100%);
}

.tone-indicator.high {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.tone-indicator.rising {
  background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
}

/* Tone curves - main path color */
.tone-curve {
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tone-indicator.mid .tone-curve {
  stroke: #1976d2; /* Blue */
}

.tone-indicator.low .tone-curve {
  stroke: #f57c00; /* Orange */
}

.tone-indicator.falling .tone-curve {
  stroke: #c2185b; /* Pink */
}

.tone-indicator.high .tone-curve {
  stroke: #388e3c; /* Green */
}

.tone-indicator.rising .tone-curve {
  stroke: #7b1fa2; /* Purple */
}

/* Arrow markers */
.tone-arrow {
  fill: currentColor;
}

/* Hover effect */
.tone-indicator:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  transition: all 0.2s ease;
}

/* Tooltip on hover */
.tone-indicator::after {
  content: attr(data-tone);
  position: absolute;
  bottom: -28px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 10;
}

.tone-indicator:hover::after {
  opacity: 1;
}

/* Large version for cards */
.tone-indicator-large {
  width: 48px;
  height: 48px;
}

.tone-indicator-large svg {
  width: 36px;
  height: 36px;
}

.tone-indicator-large .tone-curve {
  stroke-width: 3;
}

/* Small version for inline text */
.tone-indicator-small {
  width: 24px;
  height: 24px;
  margin-right: 4px;
}

.tone-indicator-small svg {
  width: 18px;
  height: 18px;
}

.tone-indicator-small .tone-curve {
  stroke-width: 2;
}

/* Tone badge with indicator (replaces old color dots) */
.tone-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  background: #f5f5f5;
}

/* Animation for learning/practice mode */
@keyframes tone-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.tone-indicator.active {
  animation: tone-pulse 1s ease-in-out infinite;
}

/* Accessibility - focus states */
.tone-indicator:focus-visible {
  outline: 3px solid #2196f3;
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .tone-indicator {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .tone-indicator {
    background: linear-gradient(135deg, #424242 0%, #303030 100%);
  }
  
  .tone-badge {
    background: #424242;
    color: #e0e0e0;
  }
}