:root{
  --primary-green: #1a5f1a;
  --accent-green: #2d7a2d;
  --light-green: #4a9a4a;
  --dark-green: #0f3f0f;
  --bg:#ffffff;
  --ink:#0a0a0a;
  --ink-2:#444;
  --border: #e0e0e0;
  --shadow: rgba(0, 0, 0, 0.1);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);color:var(--ink)}

#app{height:100%;display:flex;flex-direction:column}
.toolbar{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  padding:16px 15px;
  border-bottom:2px solid var(--border);
  background:linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
  box-shadow:0 2px 4px var(--shadow);
}
/* Constrain logo size in toolbar */
.toolbar .home_logo img{
  min-height:50px;
  width:auto;
  max-height:50px;
  display:block;
  margin-right: 10px;
}
.toolbar button{
  background:linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
  color:#fff;
  border:0;
  border-radius:8px;
  padding:8px 16px;
  cursor:pointer;
  font-weight:500;
  font-size:14px;
  box-shadow:0 2px 4px var(--shadow);
  transition:all 0.2s ease;
  min-width:120px;
  flex-shrink:0;
}

#applySettingsBtn{
  min-width:60px;
}

#loadAudioBtn{
  min-width:120px;
  padding:16px 16px;
}

.toolbar button:hover{
  background:linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
  box-shadow:0 4px 8px var(--shadow);
}
.toolbar button:active{
  transform:translateY(1px);
  box-shadow:0 1px 2px var(--shadow);
}
.toolbar .control{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:500;
  color:var(--ink);
  min-width:140px;
  flex-shrink:0;
}
.toolbar select{
  padding:8px 12px;
  border:2px solid var(--border);
  border-radius:6px;
  background:#fff;
  color:var(--ink);
  font-weight:500;
  transition:border-color 0.2s ease;
}
.toolbar select:focus{
  outline:none;
  border-color:var(--primary-green);
  box-shadow:0 0 0 3px rgba(26, 95, 26, 0.1);
}

.content{
  flex:1;
  display:flex;
  flex-direction:column;
  background:#fafafa;
  position:relative;
}
.top{
  flex:0 0 30vh;
  position:relative;
  border-bottom:2px solid var(--border);
  box-shadow:0 2px 4px var(--shadow);
  overflow-x:auto;
  overflow-y:hidden;
  min-height:150px;
  max-height:80vh;
}
#spectroCanvas{
  width:100%;
  height:100%;
  display:block;
  background:#fff;
  min-width:100%;
}
.zoom-controls{
  position:absolute;
  top:8px;
  right:8px;
  display:flex;
  gap:4px;
  z-index:20;
  pointer-events:none;
}
.zoom-controls button{
  pointer-events:auto;
  width:32px;
  height:32px;
  border:0;
  border-radius:6px;
  background:#fff;
  color:var(--ink);
  font-size:20px;
  font-weight:500;
  cursor:pointer;
  box-shadow:0 2px 6px var(--shadow);
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all 0.2s ease;
  line-height:1;
  padding:0;
}
.zoom-controls button:hover{
  background:#f0f0f0;
  box-shadow:0 3px 8px var(--shadow);
}
.zoom-controls button:active{
  transform:translateY(1px);
  box-shadow:0 1px 3px var(--shadow);
}

.bottom{
  flex:1;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:16px;
  background:#fafafa;
}
.stave-row{display:flex;align-items:flex-start;}
.clef{height:200px}
.notes-row{
  display:flex;
  gap:0;
  flex-wrap:nowrap;
  overflow:auto;
  align-items:flex-start;
}
.notes-row .note-container{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
}
.notes-row .note-container img{
  height:200px;
  display:block;
}
.notes-row .note-container .dynamics{
  height:24px;
  display:block;
}
.dyn-row{
  display:none; /* Hide the old separate dynamics row */
}
.pitches{
  width:100%;
  padding:12px;
  border:2px solid var(--border);
  background:#fff;
  border-radius:8px;
  font-family:monospace;
  font-size:14px;
  color:var(--ink);
  box-shadow:0 2px 4px var(--shadow);
  transition:border-color 0.2s ease;
}
.pitches:focus{
  outline:none;
  border-color:var(--primary-green);
  box-shadow:0 0 0 3px rgba(26, 95, 26, 0.1);
}

/* Frequency to Pitch Button Styling */
.frequency-to-pitch-btn {
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 8px 16px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  box-shadow: 0 2px 4px var(--shadow);
  transition: all 0.2s ease;
  margin-top: 8px;
  align-self: flex-start;
  min-width: 180px;
}

.frequency-to-pitch-btn:hover {
  background: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
  box-shadow: 0 4px 8px var(--shadow);
}

.frequency-to-pitch-btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px var(--shadow);
}

.frequency-to-pitch-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  opacity: 0.6;
}

/* Custom Range Slider Styling */
.toolbar input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 6px;
  background: #e0e0e0;
  border-radius: 3px;
  outline: none;
  margin: 0 8px;
}

.toolbar input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px var(--shadow);
  border: 3px solid #fff;
  transition: all 0.2s ease;
}

.toolbar input[type="range"]::-webkit-slider-thumb:hover {
  background: linear-gradient(135deg, var(--dark-green) 0%, var(--primary-green) 100%);
  box-shadow: 0 4px 12px var(--shadow);
  transform: scale(1.1);
}

.toolbar input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 6px var(--shadow);
  border: 3px solid #fff;
  transition: all 0.2s ease;
}

.toolbar input[type="range"]::-moz-range-track {
  width: 100%;
  height: 6px;
  background: #e0e0e0;
  border-radius: 3px;
  border: none;
}

.cursor-line{
  position:absolute;
  top:0;
  bottom:0;
  width:1px;
  background:cyan;
  pointer-events:none;
  box-shadow:0 0 4px cyan;
}

.playhead-line{
  position:absolute;
  top:0;
  bottom:0;
  width:1px;
  background:cyan;
  pointer-events:none;
  opacity:0.9;
  box-shadow:0 0 4px cyan;
}

/* Loading Modal Styles */
.loading-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.loading-modal-content {
  background: var(--bg);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e7e7e7;
  border-top: 4px solid var(--primary-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-modal-content h3 {
  margin: 0 0 12px 0;
  color: var(--ink);
  font-size: 18px;
}

.loading-modal-content p {
  margin: 0 0 8px 0;
  color: var(--ink-2);
  font-size: 14px;
}

.loading-note {
  font-style: italic;
  color: var(--ink-2);
  font-size: 13px;
}

.cancel-btn {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
  color: white;
  border: 0;
  border-radius: 8px;
  padding: 12px 24px;
  cursor: pointer !important;
  font-size: 14px;
  font-weight: 500;
  margin-top: 20px;
  box-shadow: 0 2px 4px var(--shadow);
  transition: all 0.2s ease;
}

.cancel-btn:hover {
  background: linear-gradient(135deg, #c82333 0%, #a71e2a 100%);
  box-shadow: 0 4px 8px var(--shadow);
}

/* Audio Player Styling */
.toolbar audio {
  border-radius: 8px;
  background: #fff;
  border: 2px solid var(--border);
  box-shadow: 0 2px 4px var(--shadow);
  transition: border-color 0.2s ease;
  min-width: 200px;
  flex-shrink: 1;
}

/* WebKit browsers (Chrome, Safari, Edge) */
.toolbar audio::-webkit-media-controls-panel {
  background-color: #fff;
}

.toolbar audio::-webkit-media-controls-enclosure {
  background-color: #fff;
  border-radius: 8px;
}

/* Firefox - more limited styling options */
.toolbar audio::-moz-media-controls {
  background-color: #fff;
}

.toolbar audio:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(26, 95, 26, 0.1);
}

/* Enhanced Visual Hierarchy */
.stave-row {
  display: flex;
  align-items: flex-start;
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 4px var(--shadow);
  border: 1px solid var(--border);
}

/* Professional Typography */
.toolbar .control span {
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

/* Value Display for Slider */
.toolbar .control span:last-child {
  background: var(--primary-green);
  color: #fff;
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
  min-width: 32px;
  text-align: center;
  font-size: 12px;
}

/* Resize Handle Styles */
.resize-handle {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 8px;
  background: var(--border);
  cursor: ns-resize;
  z-index: 30;
  transition: background 0.2s ease;
}

.resize-handle:hover {
  background: var(--primary-green);
}

.resize-handle:active {
  background: var(--accent-green);
}

/* Placeholder Message Styles */
.placeholder-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

.placeholder-message h2 {
  margin: 0 0 8px 0;
  color: var(--ink-2);
  font-size: 18px;
  font-weight: 500;
}

.placeholder-message p {
  margin: 0;
  color: var(--ink-2);
  font-size: 14px;
  opacity: 0.8;
}

/* Responsive Design for Screens Below 1200px */
@media (max-width: 1300px) {
  .toolbar {
    gap: 12px;
    padding: 12px 16px;
  }
  
  .toolbar button {
    min-width: 100px;
    padding: 8px 10px;
    font-size: 13px;
  }
  
  #loadAudioBtn {
    min-width: 120px;
  }
  
  .toolbar .control {
    min-width: 110px;
    gap: 6px;
  }
  
  .toolbar .control span {
    font-size: 11px;
  }
  
  .toolbar select {
    padding: 6px 10px;
    font-size: 13px;
  }
  
  .toolbar input[type="range"] {
    width: 100px;
  }
  
  .toolbar audio {
    min-width: 180px;
  }
}

/* Further responsive adjustments for smaller screens */
@media (max-width: 768px) {
  .toolbar {
    gap: 8px;
    padding: 8px 12px;
  }
  
  .toolbar button {
    min-width: 80px;
    padding: 6px 10px;
    font-size: 12px;
  }
  
  #loadAudioBtn {
    min-width: 120px;
  }
  
  .toolbar .control {
    min-width: 100px;
  }
  
  .toolbar audio {
    min-width: 150px;
  }
}

/* Remove padding and border radius for very small screens */
@media (max-width: 700px) {
  .bottom {
    padding: 0;
  }
  
  .stave-row {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    padding: 16px;
  }
  
  .pitches {
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    margin: 0;
  }
}