:root {
  --bg: #16181d;
  --panel: #1f232b;
  --panel-2: #262b35;
  --text: #e8e6e0;
  --muted: #9aa0ab;
  --accent: #e2a44a;
  --accent-2: #7ec8a3;
  --diagram-line: #9aa0ab;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 14px 22px;
  background: var(--panel);
  border-bottom: 1px solid #333a46;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

h1 { font-size: 19px; margin: 0; }

.controls {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.controls label {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 7px;
}

select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 6px;
  padding: 5px 9px;
  font-size: 14px;
}

.sounding-key {
  font-size: 13px;
  color: var(--accent-2);
  background: rgba(126, 200, 163, 0.1);
  border: 1px solid rgba(126, 200, 163, 0.3);
  border-radius: 20px;
  padding: 4px 13px;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 22px 60px;
}

h2 {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
  margin: 18px 0 8px;
  letter-spacing: 0.06em;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 7px; }

.degree-btn, .quality-btn {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid #3c4454;
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.12s;
}

.degree-btn.diatonic { color: var(--text); font-weight: 600; }

.degree-btn:hover, .quality-btn:hover { border-color: var(--accent); }

.degree-btn.active, .quality-btn.active {
  background: var(--accent);
  color: #1d1508;
  border-color: var(--accent);
  font-weight: 700;
}

.quality-btn { font-size: 13px; padding: 6px 11px; }

.display {
  margin-top: 22px;
  background: var(--panel);
  border: 1px solid #333a46;
  border-radius: 14px;
  padding: 18px 20px 10px;
}

.chord-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.chord-name { font-size: 38px; font-weight: 800; color: var(--accent); }

.voicing-label { font-size: 14px; color: var(--muted); }

.play-btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 20px;
  padding: 8px 18px;
  font-size: 14px;
  cursor: pointer;
}

.play-btn:hover { border-color: var(--accent-2); color: var(--accent-2); }

.board-wrap { overflow-x: auto; padding-bottom: 6px; }

.board-wrap svg { display: block; }

.fret-num { fill: var(--muted); font-size: 12px; font-family: inherit; }
.capo-label { fill: #8fa9d0; font-size: 11px; font-family: inherit; }
.mute-mark { fill: #c05b5b; font-size: 15px; font-family: inherit; }

.string-hit { cursor: pointer; }
.string-hit:hover { fill: rgba(226, 164, 74, 0.07); }

.hint { font-size: 12px; color: var(--muted); margin: 4px 0 8px; }

.voicing-list { display: flex; flex-wrap: wrap; gap: 12px; }

.voicing-card {
  background: var(--panel);
  border: 1px solid #333a46;
  border-radius: 12px;
  padding: 10px 8px 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.12s;
}

.voicing-card:hover { border-color: var(--accent); }

.voicing-card.active {
  border-color: var(--accent);
  background: rgba(226, 164, 74, 0.08);
}

.voicing-name { font-size: 11px; color: var(--muted); margin-top: 4px; max-width: 110px; }

.mini-open { fill: #c05b5b; font-size: 10px; }
.mini-frnum { fill: var(--muted); font-size: 11px; }

.empty { color: var(--muted); font-size: 14px; }

/* コード進行 */
.prog-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.prog-controls label {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

#prog-bpm {
  width: 64px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 14px;
}

#prog-loop { accent-color: var(--accent-2); width: 15px; height: 15px; }

.prog-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 8px;
  padding: 7px 7px 7px 13px;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.12s;
}

.prog-chip:hover { border-color: var(--accent); }

.prog-chip.playing {
  background: var(--accent);
  color: #1d1508;
  border-color: var(--accent);
  font-weight: 700;
}

.chip-beats {
  background: #3c4454;
  border: none;
  color: var(--text);
  border-radius: 5px;
  font-size: 11px;
  padding: 3px 7px;
  cursor: pointer;
}

.chip-beats:hover { background: #4a5468; }

.prog-chip.playing .chip-beats { background: rgba(0, 0, 0, 0.18); color: #1d1508; }

.prog-save-row { margin-top: 14px; }

#prog-name {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  width: 240px;
}

.prog-chip.saved { border-color: rgba(126, 200, 163, 0.45); }

.prog-chip.saved:hover { border-color: var(--accent-2); }

.chip-del {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 11px;
  cursor: pointer;
  padding: 2px 4px;
}

.prog-chip.playing .chip-del { color: #1d1508; }

.chip-del:hover { color: #c05b5b; }

/* コード登録エディタ */
.edit-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

#shape-name {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid #3c4454;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  width: 170px;
}

#btn-register:disabled { opacity: 0.4; cursor: default; }

.ed-hit { cursor: pointer; }
.ed-hit:hover { fill: rgba(226, 164, 74, 0.12); }

.voicing-card { position: relative; }

.voicing-card.user { border-style: dashed; }

.del-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  padding: 2px 5px;
}

.del-btn:hover { color: #c05b5b; }

/* ソロ練習スケールボード */
.scale-legend { font-size: 12px; color: var(--muted); display: inline-flex; align-items: center; gap: 5px; }

.lg { font-size: 14px; }
.lg-root { color: var(--accent); }
.lg-chord { color: var(--accent-2); }
.lg-note { color: #565e6e; }

.sc-dot { cursor: pointer; }
.sc-dot:hover circle { stroke: #fff; stroke-width: 1.5; }

.sc-label {
  font-size: 9.5px;
  font-family: inherit;
  fill: #16181d;
  font-weight: 700;
  pointer-events: none;
}

.sc-note .sc-label { fill: #d5d9e0; font-weight: 500; }

/* 作曲ピアノロール */
#melody-svg { user-select: none; }

.mel-note { fill: var(--accent); cursor: pointer; }
.mel-note.ct { fill: var(--accent-2); }
.mel-note:hover { stroke: #fff; stroke-width: 1.2; }

#backing-svg { user-select: none; }

.bk-note { fill: var(--accent-2); cursor: pointer; }
.bk-note:hover { stroke: #fff; stroke-width: 1.2; }

.seg-handle { cursor: col-resize; }
.seg-handle:hover { fill: rgba(255, 255, 255, 0.15); }

.mel-row-label { font-size: 11px; font-family: inherit; }
.mel-row-label.lo { fill: #6b7280; }
.mel-row-label.hi { fill: #b8bfc9; }

.mel-chord-label { font-size: 12px; fill: var(--text); font-weight: 600; font-family: inherit; }

/* インポート / エクスポート */
.share-status { font-size: 13px; color: var(--accent-2); }

.share-status.error { color: #c05b5b; }

#share-zone.dragging {
  outline: 2px dashed var(--accent-2);
  outline-offset: -4px;
  border-radius: 10px;
}

/* エフェクトパネル */
.fx-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.fx-card {
  background: var(--panel);
  border: 1px solid #333a46;
  border-radius: 12px;
  padding: 12px 14px;
  transition: border-color 0.12s;
}

.fx-card.on { border-color: var(--accent-2); }

.fx-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 8px;
}

.fx-card:not(.on) .fx-head { color: var(--muted); }

.fx-head input[type="checkbox"] { accent-color: var(--accent-2); width: 16px; height: 16px; }

.fx-param {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: 12px;
  color: var(--muted);
}

.fx-label { min-width: 74px; }

.fx-param input[type="range"] { flex: 1; accent-color: var(--accent); min-width: 0; }

.fx-card:not(.on) input[type="range"] { opacity: 0.35; }

.fx-value { min-width: 42px; text-align: right; color: var(--text); }