:root {
  --bg: #0b1020;
  --panel: #141a33;
  --panel-2: #1a2147;
  --text: #e8ecf5;
  --muted: #9aa3b8;
  --accent: #c4b5fd;
  --good: #8fd67a;
  --bad: #ef4444;
  --warn: #f59e0b;
  --line: rgba(255,255,255,0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(ellipse at top, #2a1a50 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}
a, .back-link {
  color: var(--accent);
  text-decoration: none;
}
.back-link {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border: 1px solid rgba(196,181,253,0.3);
  border-radius: 999px;
  margin: 1rem 0 0 1rem;
  font-size: 0.85rem;
}
header {
  text-align: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
header h1 {
  font-size: 1.8rem;
  margin: 0.5rem 0;
  color: var(--accent);
}
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}
/* Üben-Card aus dem 900px-Layout ausbrechen → volle Viewport-Breite */
#panel-practice {
  width: 100vw;
  position: relative;
  left: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  border-radius: 0;
  border-left: none;
  border-right: none;
  padding: 1.2rem 2rem;
  box-sizing: border-box;
}
.panel {
  background: var(--panel);
  border-radius: 14px;
  padding: 1.2rem 1.3rem;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
}
.panel.hidden { display: none; }
.panel h2 {
  margin: 0 0 0.8rem;
  font-size: 1.15rem;
  color: var(--accent);
}
.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 0.8rem;
}
.hint code {
  background: rgba(255,255,255,0.07);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

/* Tabs */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 0.8rem; flex-wrap: wrap; }
.tab {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.9rem;
}
.tab.active {
  background: var(--accent);
  color: #0b1020;
  font-weight: 600;
}
.tab-body { display: none; }
.tab-body.active { display: block; }

input[type="text"], input[type="search"] {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 8px;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
button {
  background: var(--accent);
  color: #0b1020;
  border: none;
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 999px;
  cursor: pointer;
  margin: 0.2rem 0.2rem 0.2rem 0;
}
button:hover { filter: brightness(1.1); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary { background: var(--good); }

/* Upload */
.upload-drop {
  display: block;
  padding: 1.8rem;
  background: var(--panel-2);
  border: 2px dashed rgba(196,181,253,0.3);
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
}
.upload-drop input { display: none; }
.upload-drop span { color: var(--muted); }

/* Results list */
/* Bibliothek */
.lib-filters {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin-bottom: 0.8rem;
}
.lib-filter-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.lib-filter-label {
  color: var(--muted);
  font-size: 0.85rem;
  min-width: 7em;
}
.chip-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.chip {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid transparent;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}
.chip:hover { border-color: var(--muted); }
.chip.active {
  background: var(--accent);
  color: #1c1917;
  font-weight: 600;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.7rem;
  margin-top: 0.6rem;
}
.song-card {
  background: var(--panel-2);
  padding: 0.8rem 0.9rem;
  border-radius: 10px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: border-color 0.15s, transform 0.15s;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.song-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.song-card .sc-title { font-weight: 600; line-height: 1.2; }
.song-card .sc-artist { color: var(--muted); font-size: 0.85rem; }
.song-card .sc-tags {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 0.2rem;
}
.song-card .sc-tag {
  background: rgba(255,255,255,0.06);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  color: var(--muted);
}
.song-card .sc-tag.diff-einfach { color: #8fd67a; }
.song-card .sc-tag.diff-mittel { color: #fcd34d; }
.song-card .sc-tag.diff-schwer { color: #fca5a5; }

.results {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.result-item {
  background: var(--panel-2);
  border: 1px solid var(--line);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.result-item:hover { border-color: var(--accent); }
.result-item.online { cursor: default; }
.result-item.online:hover { border-color: var(--line); }
.result-item .conf {
  color: var(--muted);
  font-size: 0.8rem;
}
.result-item .title { font-weight: 600; }
.result-item .sub { color: var(--muted); font-size: 0.85rem; }
.online-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  font-size: 0.95rem;
}
.online-btn:hover { border-color: var(--accent); }
.online-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.online-player midi-player { width: 100%; max-width: 400px; }
.search-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.5rem;
  align-items: start;
}
@media (max-width: 760px) {
  .search-cols { grid-template-columns: 1fr; }
}
.online-open {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.upload-box {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--line);
  border-radius: 8px;
}
.upload-box input[type="file"] { margin-top: 0.5rem; }

/* Kuratierte Starter-Liste */
.curated-grid {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.curated-group h3 {
  margin: 0 0 0.4rem;
  color: var(--accent);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.curated-songs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.5rem;
}
.curated-song {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  cursor: pointer;
  transition: border 0.15s;
}
.curated-song:hover, .curated-song:active {
  border-color: var(--accent);
}
.curated-song .ct { font-weight: 600; }
.curated-song .ca { color: var(--muted); font-size: 0.85rem; }
.curated-song .cg { color: var(--accent); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 0.3rem; }

/* Levels list */
.levels-list { display: flex; flex-direction: column; gap: 0.5rem; }
.level-item {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.level-item:hover { border-color: var(--accent); }
.level-item.current { border-color: var(--good); }
.level-badge {
  background: var(--good);
  color: #0b1020;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  margin-right: 0.7rem;
}
.song-info {
  padding: 0.6rem 0.8rem;
  background: var(--panel-2);
  border-radius: 8px;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
}

/* Practice */
.tempo-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}
.hand-toggle {
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  border: 2px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, filter 0.15s;
  color: #1c1917;
}
.hand-toggle.hand-left  { background: #5ab0f5; border-color: #5ab0f5; }
.hand-toggle.hand-right { background: #f4d06f; border-color: #f4d06f; }
.hand-toggle:not(.active) {
  background: transparent;
  color: var(--muted);
  filter: grayscale(0.7);
  opacity: 0.55;
}
.practice-grid {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(420px, 3fr) minmax(200px, 1fr);
  gap: 0.9rem;
  align-items: stretch;
}
.practice-side {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 0;
}
.practice-center {
  min-width: 0;
}
.side-block {
  background: var(--panel-2);
  padding: 0.7rem 0.8rem;
  border-radius: 8px;
}
/* Bestehende Hintergründe haben Vorrang, kein Doppel-Container nötig */
.side-block.midi-input-status,
.side-block.result {
  background: var(--panel-2);
  padding: 0.7rem 0.8rem;
}
.side-block.score-live {
  flex-direction: column;
  gap: 0.4rem;
  margin: 0;
  padding: 0.7rem 0.8rem;
}
.side-block.score-live .stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255,255,255,0.04);
  padding: 0.35rem 0.6rem;
}
.side-block.score-live .stat-label {
  color: var(--muted);
  font-size: 0.85rem;
}
.side-block.score-live .stat.big .stat-label {
  color: var(--accent);
  font-size: 0.9rem;
}
.current-song { font-weight: 600; }
.current-level { color: var(--muted); font-size: 0.9rem; margin-top: 0.2rem; }
.practice-controls {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
}
.practice-controls button {
  width: 100%;
}
@media (max-width: 820px) {
  .practice-grid {
    grid-template-columns: 1fr;
  }
  .practice-controls {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .practice-controls button {
    width: auto;
    flex: 1 1 auto;
  }
}
.speed-ctrl {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--panel-2);
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--muted);
}
.speed-ctrl #speed-label {
  font-weight: 600;
  color: var(--text, #f5f5f4);
  min-width: 3.2em;
  text-align: right;
}
.speed-ctrl input[type="range"] { width: 130px; }
.midi-input-status {
  background: var(--panel-2);
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  margin-bottom: 0.8rem;
  font-size: 0.9rem;
  color: var(--muted);
}
#midi-state.ok { color: var(--good); }
#midi-state.bad { color: var(--bad); }
.mic-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}
.mic-toggle {
  background: var(--panel);
  color: var(--text, #f5f5f4);
  border: 1px solid var(--muted);
  padding: 0.3rem 0.7rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
}
.mic-toggle.active {
  background: #ef4444;
  border-color: #ef4444;
  color: #fff;
}
.mic-state-text { font-size: 0.8rem; color: var(--muted); }

#piano-roll {
  width: 100%;
  height: 520px;
  background: #0a0e1e;
  border-radius: 8px;
  display: block;
  touch-action: none;
}

.score-live {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin: 0.7rem 0;
}
.score-live .stat {
  background: var(--panel-2);
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
}
.score-live .stat.big { font-weight: 700; color: var(--accent); }

.result {
  background: var(--panel-2);
  border-radius: 10px;
  padding: 1rem;
  margin-top: 0.5rem;
  border-left: 4px solid var(--good);
}
.result.hidden { display: none; }
.result h3 { margin: 0 0 0.3rem; }
.result p { margin: 0 0 0.8rem; color: var(--muted); }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 1rem;
}