:root {
  --bg-primary: #121212;
  --bg-secondary: #1e1e1e;
  --bg-tertiary: #2a2a2a;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --accent-color: #bb86fc;
  --chord-color: #03dac6;
  --border-color: #333333;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.header-container h1 {
  font-size: 1.5rem;
  color: var(--accent-color);
  white-space: nowrap;
}

.search-form {
  display: flex;
  flex: 1;
  max-width: 650px;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-form input {
  flex: 1;
  min-width: 200px;
  padding: 0.6rem 1rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.search-form input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.toggle-filter {
  display: inline-flex;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px;
}

.toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn:hover {
  color: var(--text-primary);
}

.toggle-btn.active {
  background-color: var(--accent-color);
  color: #000;
}

.btn {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.btn:hover {
  opacity: 0.85;
}

.btn-primary {
  background-color: var(--accent-color);
  color: #000;
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.main-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
  flex: 1;
  width: 100%;
}

.hidden {
  display: none !important;
}

.search-results-section {
  margin-bottom: 2rem;
}

.search-results-section h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.results-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.result-item {
  background-color: var(--bg-secondary);
  padding: 1rem;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--border-color);
  transition: background-color 0.2s;
}

.result-item:hover {
  background-color: var(--bg-tertiary);
}

.result-title {
  font-weight: bold;
  font-size: 1.1rem;
}

.result-artist {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.song-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.5rem;
}

.song-meta h2 {
  font-size: 2rem;
  color: var(--text-primary);
}

.song-meta h3 {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.offset-display {
  display: inline-block;
  min-width: 1.5rem;
  text-align: center;
  font-weight: bold;
}

.chord-display-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
}

.chord-display {
  font-family: "Courier New", Courier, monospace;
  font-size: 1.05rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

.chord {
  color: var(--chord-color);
  font-weight: bold;
}