* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', sans-serif; font-size: 13px; background: #1a1a2e; color: #e0e0e0; display: flex; flex-direction: column; height: 100vh; }

/* Feedback Banner */
#feedback-bar {
  display: flex; justify-content: center; padding: 6px 12px;
  background: #1a0a2e; border-bottom: 1px solid #444;
}
#feedback-btn {
  display: inline-block; padding: 8px 40px;
  background: #e94560; color: #fff; font-size: 22px; font-weight: bold;
  text-decoration: none; border-radius: 6px; letter-spacing: 1px;
}
#feedback-btn:hover { background: #ff6b6b; }

/* Upload Bar */
#upload-bar {
  display: flex; align-items: center; gap: 15px; padding: 8px 12px;
  background: #16213e; border-bottom: 1px solid #333;
  font-size: 24px; flex-wrap: wrap;
}
#upload-bar label { display: flex; align-items: center; gap: 6px; font-size: 24px; }
#upload-bar input[type="file"] { width: 340px; font-size: 21px; }
#upload-bar input[type="number"] { width: 75px; background: #0f3460; border: 1px solid #555; color: #fff; padding: 4px 5px; border-radius: 4px; font-size: 24px; }
#load-btn { padding: 8px 22px; background: #e94560; color: #fff; border: none; border-radius: 5px; cursor: pointer; font-weight: bold; font-size: 24px; }
#load-btn:hover { background: #ff6b6b; }
#load-status { color: #aaa; font-size: 19px; }
#page-nav { display: inline-flex; align-items: center; gap: 6px; }
#page-nav button { padding: 4px 12px; background: #0f3460; color: #e0e0e0; border: 1px solid #555; border-radius: 4px; cursor: pointer; font-size: 24px; }
#page-nav button:hover { background: #1a1a5e; }
#page-indicator { font-size: 22px; color: #e0e0e0; min-width: 60px; text-align: center; }

/* Toolbar */
#toolbar {
  display: flex; align-items: center; gap: 8px; padding: 6px 12px;
  background: #0f3460; border-bottom: 1px solid #333; flex-wrap: wrap;
  font-size: 24px;
}
.tool-group { display: flex; align-items: center; gap: 4px; padding: 0 6px; border-right: 1px solid #333; }
.tool-group:last-child { border-right: none; }
.tool-group.right { margin-left: auto; }
#toolbar button {
  padding: 6px 11px; background: #16213e; color: #e0e0e0; border: 1px solid #555;
  border-radius: 3px; cursor: pointer; font-size: 24px;
}
#toolbar button:hover { background: #1a1a5e; border-color: #888; }
#toolbar button:active { background: #e94560; }
#btn-download { background: #1b6b1b; border-color: #2a2; }
#btn-download:hover { background: #2a8a2a; }
#toolbar label { font-size: 24px; }
#toolbar input[type="number"] { font-size: 24px; width: 68px; }
#toolbar input[type="range"] { width: 112px; height: 12px; }

#zoom-slider { width: 112px; vertical-align: middle; }
#zoom-label { font-size: 21px; color: #aaa; min-width: 38px; display: inline-block; }

/* Shortcut Reference Bar */
#shortcut-bar {
  display: flex; flex-wrap: wrap; gap: 6px 18px; padding: 6px 12px;
  background: #12122a; border-bottom: 1px solid #2a2a4a;
  font-size: 20px; color: #888;
}
#shortcut-bar b { color: #bbb; }

/* Progress Bar */
#progress-bar-container {
  position: relative; height: 38px; background: #0a0a1a; border-bottom: 1px solid #333;
  cursor: pointer; user-select: none;
}
#progress-bar-fill {
  height: 100%; width: 0%; background: linear-gradient(90deg, #e94560, #ff6b6b);
  transition: none; pointer-events: none;
}
#progress-time {
  position: absolute; top: 0; right: 8px; line-height: 38px;
  font-size: 15px; color: #aaa; pointer-events: none;
}

/* Main Canvas */
#canvas-wrapper {
  flex: 1; overflow: auto; background: #111; position: relative;
}
#canvas-container {
  position: relative; display: inline-block;
  transform-origin: top left;
}
#score-image {
  display: block; user-select: none; -webkit-user-drag: none;
}
#marker-svg {
  position: absolute; top: 0; left: 0; pointer-events: none;
}

/* Markers */
.marker {
  pointer-events: all; cursor: pointer;
  transition: r 0.1s, stroke-width 0.1s;
}
.marker:hover { r: 10; }
.marker.selected { stroke: #ffd700; stroke-width: 3; r: 10; }
.marker.playback-highlight { stroke: #ff3333; stroke-width: 3; r: 11; fill: rgba(255,50,50,0.9); }
.marker.modified { stroke: #00ff88; stroke-width: 2.5; filter: drop-shadow(0 0 3px #00ff88); }
.marker.modified.selected { stroke: #ffd700; stroke-width: 3; filter: drop-shadow(0 0 4px #00ff88); }
.marker.voice1 { fill: rgba(68, 136, 255, 0.7); stroke: #4488ff; stroke-width: 1; }
.marker.voice2 { fill: rgba(255, 68, 68, 0.7); stroke: #ff4444; stroke-width: 1; }
.marker.voice3 { fill: rgba(68, 170, 68, 0.7); stroke: #44aa44; stroke-width: 1; }
.marker.voice4 { fill: rgba(255, 170, 0, 0.7); stroke: #ffaa00; stroke-width: 1; }
.marker.rest-marker { fill: rgba(150, 150, 150, 0.4); stroke: #888; stroke-width: 1; r: 6; }

/* Accidental label next to marker */
.acc-label {
  pointer-events: none; font-size: 10px; fill: #ffd700; font-weight: bold;
}
/* Ghost marker for add mode */
.ghost-marker {
  fill: rgba(255, 50, 50, 0.5); stroke: #ff3333; stroke-width: 2.5;
  stroke-dasharray: 4 2;
}
.ghost-label {
  fill: #ff3333; font-size: 14px; font-weight: bold; opacity: 0.9;
}

/* Chord Popup */
#chord-popup {
  position: absolute; background: #16213e; border: 1px solid #e94560;
  border-radius: 6px; padding: 6px 0; z-index: 100; min-width: 140px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}
#chord-popup.hidden { display: none; }
#chord-popup-title { padding: 4px 12px; font-size: 11px; color: #aaa; border-bottom: 1px solid #333; }
#chord-popup-list { list-style: none; }
#chord-popup-list li {
  padding: 6px 12px; cursor: pointer; font-size: 13px;
}
#chord-popup-list li:hover { background: #0f3460; }
#chord-popup-list li .voice-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px;
}

/* Status Bar */
#status-bar {
  display: flex; justify-content: space-between; padding: 5px 12px;
  background: #16213e; border-top: 1px solid #333; font-size: 19px; color: #aaa;
}