:root {
  --background-color: #fff;
  --text-color: #000;
  --primary-color: #007BFF;
  --secondary-color: #f8f8f8;
  --border-color: #ddd;
  --control-bg-color: #e0e0e0;
  --control-hover-bg-color: #d0d0d0;
  --control-disabled-opacity: 0.5;
  --play-color: #4CAF50; /* Green */
  --pause-color: #FF4444; /* Red */
  --icon-color: #000;
  --svg-stroke-color: #000;
}

body.dark {
  --background-color: #000;
  --text-color: #fff;
  --primary-color: #007BFF;
  --secondary-color: #333;
  --border-color: #555;
  --control-bg-color: #555;
  --control-hover-bg-color: #666;
  --control-disabled-opacity: 0.5;
  --play-color: #4CAF50; /* Green */
  --pause-color: #FF4444; /* Red */
  --icon-color: #fff;
  --svg-stroke-color: #fff;
}

/* General Styles */
body {
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
}

.container {
  background: var(--secondary-color);
  padding: 20px;
  border-radius: 10px;
  max-width: 840px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* Info Section */
.info-section {
  display: flex;
  align-items: flex-start; /* Align to the top */
  margin-bottom: 20px;
}

#infoButton, #themeToggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 24px;
  margin-right: 10px;
  color: var(--icon-color);
}

#infoButton:hover, #themeToggle:hover {
  color: var(--primary-color);
}

#infoButton.active {
  color: var(--primary-color);
}

#infoContent {
  padding: 0 10px;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  margin-top: 13px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease-out;
  font-style: italic;
}

#infoContent.collapsed {
  max-height: 0;
}

/* Top Controls */
.top-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 15px;
  background: var(--background-color);
  border-radius: 5px;
  border: 1px solid var(--border-color);
}

.frequency-input {
  display: flex;
  align-items: center;
  gap: 10px;
}

.frequency-input input {
  padding: 8px;
  width: 40px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--background-color);
  color: var(--text-color);
}

.playback-controls {
  display: flex;
  gap: 10px;
}

.control-btn {
  border: 1px solid var(--text-color);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
  font-weight: bold;
  width: 50px;
  height: 33px;
  font-size: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--control-bg-color);
  color: var(--text-color);
}

.control-btn:hover:not(:disabled) {
  background-color: var(--control-hover-bg-color);
}

.control-btn:disabled {
  opacity: var(--control-disabled-opacity);
  cursor: not-allowed;
  background-color: transparent;
}

.control-btn.active {
  background-color: var(--control-active-bg-color);
}

#playBtn {
  color: var(--play-color);
  border-color: var(--play-color);
}

#pauseBtn {
  color: var(--pause-color);
  border-color: var(--pause-color);
}

/* Beatbox */
.beatbox {
  margin-bottom: 20px;
  padding: 15px;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
}

.beatbox h3 {
  margin: 0 0 10px 0;
  color: var(--text-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.voices-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 65px;
  padding: 15px;
  background: var(--secondary-color);
  border-radius: 5px;
  border: 1px solid var(--border-color);
}

.voice {
  position: relative;
  padding: 8px 30px 8px 12px;
  background: var(--control-bg-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.voice .controls-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-right: 10px;
}

.voice .up-arrow,
.voice .down-arrow {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  padding: 2px;
  color: var(--icon-color);
}

.voice .up-arrow:hover,
.voice .down-arrow:hover {
  color: var(--primary-color);
}

.voice .fraction-container {
  display: inline-block;
  text-align: center;
  cursor: pointer;
  border: 1px solid var(--text-color);
  border-radius: 4px;
  padding: 2px;
}

.voice .numerator,
.voice .denominator {
  display: block;
  text-align: center;
  color: var(--text-color);
}

.voice .fraction-line {
  display: block;
  width: 20px;
  height: 1px;
  background-color: var(--text-color);
  margin: 2px auto;
}

.voice .fraction-container:hover .numerator,
.voice .fraction-container:hover .denominator {
  color: var (--primary-color);
}

.voice .fraction-container:hover .fraction-line {
  background-color: var(--primary-color);
}

.voice .fraction-container:hover {
  border: 1px solid var(--primary-color);
}

.voice .remove {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-color);
  padding: 2px;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.voice .remove:hover {
  color: #ff4444;
}

#waveContainer {
  width: 100%;
  height: auto;
  background: var(--background-color);
  margin: 20px 0;
  border: 1px solid var(--border-color);
  border-radius: 5px;
}

#wavePath {
  stroke: var(--svg-stroke-color);
}

/* Controls */
.controls {
  padding: 15px;
  background: var(--background-color);
  border-radius: 5px;
  border: 1px solid var(--border-color);
}

/* Order Header */
.order-header {
  cursor: pointer;
  padding: 10px 0;
  background: none;
  border: none;
  font-size: 1.2em;
}

.order-header:hover {
  color: var(--primary-color);
}

.toggle-icon {
  margin-right: 5px;
  font-size: 14px;
  display: inline-block;
  width: 1.5em;
  text-align: center;
}

.header-line {
  display: none; /* Hide the additional top border */
}

.order-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out, border-width 0.3s ease-out;
  background: var(--secondary-color);
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
}

.order-content.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0;
}

/* Level Styles */
.level {
  width: 100%;
  height: 60px;
  position: relative;
  margin-bottom: 20px;
}

.level .fraction-button,
.level .placeholder {
  position: absolute;
}

.fraction-button {
  transform: translateX(-50%);
  background: var(--control-bg-color);
  border: 1px solid var(--text-color);
  border-radius: 4px;
  padding: 2px;
  cursor: pointer;
  font-size: 14px;
  text-align: center;
  transition: all 0.3s;
}

.fraction-button .fraction-container {
  display: inline-block;
  text-align: center;
}

.fraction-button .numerator,
.fraction-button .denominator {
  display: block;
  text-align: center;
  color: var(--text-color);
}

.fraction-button .fraction-line {
  display: block;
  width: 20px;
  height: 1px;
  background-color: var(--text-color);
  margin: 2px auto;
}

.fraction-button:hover .numerator,
.fraction-button:hover .denominator {
  color: var(--primary-color);
}

.fraction-button:hover .fraction-line {
  background-color: var(--primary-color);
}

.fraction-button:hover {
  border: 1px solid var(--primary-color);
}

.fraction-button:focus {
  outline: none;
}

/* Placeholder (vertical grey bar) */
.placeholder {
  width: 1px;
  height: 60px;
  background: var(--border-color);
  transform: translateX(-50%);
  pointer-events: none;
}

/* Fraction Dialog */
.fraction-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.fraction-dialog .dialog-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fraction-dialog label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.fraction-dialog input {
  width: 60px;
  padding: 5px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--background-color);
  color: var(--text-color);
}

.fraction-dialog button {
  padding: 8px 12px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.fraction-dialog button#dialogSave {
  background: var(--primary-color);
  color: var(--text-color);
}

.fraction-dialog button#dialogCancel {
  background: #f44336;
  color: #fff;
}

/* Resizable Footer */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 33vh;
  background: var(--secondary-color);
  border-top: 1px solid var(--border-color);
  overflow: auto;
  box-sizing: border-box;
  padding: 10px;
}

.resize-handle {
  width: 100%;
  height: 20px;
  cursor: ns-resize;
  background: var(--border-color);
  position: fixed;
  bottom: 33vh;
  left: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
}

.resize-handle::before {
  content: '';
  width: 50px;
  height: 10px;
  background: var(--text-color);
  border-radius: 5px;
}

.no-scroll {
  overflow: hidden;
}