* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}

:root {
  --primary: #3b97e3;
  --primary-dark: #1c79c4;
}

body {
  display: flex;
  flex-direction: column;
  height: 95vh;
  background-color: #f5f5f5;
  padding: 20px;
}

.container {
  display: flex;
  flex-direction: row;
  flex: 1;
  gap: 20px;
}

.code-panel {
  flex: 0 0 35%;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  height: auto; /* Fixed height for the commands panel */
}

.canvas-panel {
  flex: 0 0 64%;
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
}

.panel-header {
  padding: 15px;
  background-color: var(--primary);
  color: white;
  font-weight: bold;
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
}

.panel-content {
  flex: 1;
  padding: 15px;
  display: flex;
  flex-direction: column;
}

#editor {
  width: 100%;
  flex: 1;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 10px;
  font-family: monospace;
  resize: none;
}

#editor:focus {
  outline: none;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

#canvas-container {
  flex: 1;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}

#turtle-canvas {
  width: 100%;
  height: 100%;
  background-color: #fff;
}

.controls {
  display: flex;
  gap: 10px;
  padding: 15px;
}

button {
  padding: 8px 16px;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: var(--primary-dark);
}

.examples h4 {
  margin-bottom: 10px;
}

.pattern-menu {
  background-color: #f8f9fa;
  border-radius: 6px;
  padding: 12px;
  margin-top: 15px;
}

.menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #e9ecef;
}

.menu-header h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: #2c3e50;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.filter-container {
  position: relative;
}

.select-arrow {
  position: absolute;
  right: 16px;
  pointer-events: none;
  color: #6c757d;
  transition: all 0.3s ease;
}

.custom-select {
  position: relative;
  display: inline-block;
  width: 100%;
  min-width: 140px;
}

.select-trigger {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border: 2px solid #e9ecef;
  border-radius: 12px;
  padding: 8px 36px 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: #495057;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.select-trigger:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(59, 151, 227, 0.15);
  transform: translateY(-1px);
}

.select-trigger.open {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 151, 227, 0.1);
}

.select-trigger.open .select-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.select-arrow {
  color: #6c757d;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.select-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: white;
  border: 2px solid #e9ecef;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  max-height: 250px;
  overflow-y: auto;
}

.select-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.select-option {
  padding: 12px 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  color: #495057;
}

.select-option:first-child {
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

.select-option:last-child {
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}

.select-option:hover {
  background: linear-gradient(
    135deg,
    rgba(59, 151, 227, 0.1),
    rgba(28, 121, 196, 0.1)
  );
  color: var(--primary);
}

.select-option.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
}

.select-option.active:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
  max-height: 250px;
  overflow-y: auto;
  padding: inherit;
}

.pattern-card {
  background-color: white;
  border: 1px solid #ddd;
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
}

.pattern-card:hover {
  transform: none;
  box-shadow: none;
}

.pattern-preview {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #eef2ff;
  border-bottom: 1px solid #ddd;
}

.preview-placeholder {
  font-size: 40px;
  color: #4a86e8;
}

.pattern-info {
  padding: 8px;
  text-align: center; /* Center the text content */
  display: flex;
  flex-direction: column;
  align-items: center; /* Center flex items horizontally */
}

.pattern-info h5 {
  margin: 0 0 4px 0;
  font-size: 14px;
}

.error-message {
  color: #e74c3c;
  margin-top: 10px;
  font-weight: bold;
  display: none;
  background-color: #fdf2f2;
  border: 1px solid #f5c6cb;
  border-radius: 4px;
  padding: 8px 12px;
  animation: shake 0.3s ease-in-out;
}

.error-message:empty {
  display: none;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

.pattern-card.active {
  border: 2px solid #4a86e8;
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#turtle-position {
  font-size: 12px;
  font-weight: normal;
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.9);
}

.pattern-card.active .pattern-preview {
  background-color: #e8f0fe;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .pattern-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}