/* ============================================================================
 * Klangraum — Popover für Skalen, Akkorde, Griffmuster
 * ========================================================================= */

/* Page-Modus: Klangraum-Inhalt zentriert mit Max-Width-Constraint.
   Bei kleinen Viewports volle Breite. */
.klangraum-page-root {
  width: 100%;
  max-width: 720px;
  margin: 40px auto 60px;
  font-family: var(--mono);
  color: var(--paper);
}

.klangraum-popover {
  width: 100%;
  max-width: 720px;
  margin: 40px auto 60px;
  font-family: var(--mono);
  color: var(--paper);
}

.kr-frame {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(255,255,255,0.04) 0%, transparent 60%),
    linear-gradient(180deg, var(--ink-1) 0%, var(--ink-0) 100%);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
  padding: 28px 32px 0;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

/* ---- Head ---- */
.kr-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 20px;
}
.kr-head-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--grey-3);
  margin-bottom: 8px;
}
.kr-head-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 38px;
  line-height: 1.05;
  color: var(--paper);
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}
.kr-head-mood {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper-soft);
  margin: 0 0 6px;
  max-width: 600px;
}
.kr-head-usage {
  font-family: var(--serif);
  font-size: 14px;
  line-height: 1.55;
  color: var(--grey-3);
  margin: 0;
  max-width: 600px;
}

/* ---- Section ---- */
.kr-section {
  margin-bottom: 22px;
}
.kr-section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.kr-section-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--paper);
}
.kr-section-hint {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--grey-3);
}
.kr-row-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--grey-3);
  margin: 14px 0 6px;
}
.kr-row-label:first-child { margin-top: 0; }

/* ---- Selektoren ---- */
.kr-selectors { margin-bottom: 24px; }
.kr-root-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.kr-root-pill {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey-3);
  background: rgba(8,10,14,0.5);
  border: 1px solid var(--line);
  padding: 7px 11px;
  min-width: 36px;
  text-align: center;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.kr-root-pill:hover { color: var(--paper); border-color: var(--line-strong); }
.kr-root-pill.is-active {
  color: var(--paper);
  border-color: var(--paper);
  background: rgba(255,255,255,0.06);
}
.kr-select {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--paper);
  background: rgba(8,10,14,0.5);
  border: 1px solid var(--line);
  padding: 8px 12px;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  min-width: 180px;
  border-radius: 0;
}
.kr-select:hover { border-color: var(--paper); }
.kr-inst-row {
  display: flex;
  gap: 8px;
}
.kr-inst-row .kr-select { flex: 1; }

/* ---- Notes ---- */
.kr-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.kr-note-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(8,10,14,0.5);
  transition: background 0.15s, border-color 0.15s;
}
.kr-note-card .kr-note-degree {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--grey-3);
  margin-bottom: 4px;
}
.kr-note-card .kr-note-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  color: var(--paper);
  line-height: 1;
}
.kr-note-card.is-root {
  background: rgba(255,255,255,0.92);
  border-color: var(--paper);
}
.kr-note-card.is-root .kr-note-degree { color: rgba(8,10,14,0.55); }
.kr-note-card.is-root .kr-note-name { color: var(--ink-0); font-weight: 500; }

.kr-note-card.is-char {
  background: rgba(232,200,120,0.16);
  border-color: rgba(232,200,120,0.7);
}
.kr-note-card.is-char .kr-note-degree { color: rgba(232,200,120,0.9); }
.kr-note-card.is-char .kr-note-name { color: rgba(248,220,170,1); }

.kr-note-card.is-color {
  background: rgba(160,180,210,0.12);
  border-color: rgba(180,200,230,0.55);
}
.kr-note-card.is-color .kr-note-degree { color: rgba(180,200,230,0.8); }
.kr-note-card.is-color .kr-note-name { color: rgba(210,225,240,1); }

.kr-notes-legend {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--grey-3);
}
.kr-legend-item { display: inline-flex; align-items: center; gap: 6px; }
.kr-legend-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 1px solid var(--line);
}
.kr-legend-swatch.is-root { background: var(--paper); border-color: var(--paper); }
.kr-legend-swatch.is-char { background: rgba(232,200,120,0.85); border-color: rgba(232,200,120,0.9); }
.kr-legend-swatch.is-color { background: rgba(160,180,210,0.55); border-color: rgba(180,200,230,0.85); }

/* ---- Fretboard ---- */
.kr-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.kr-tab {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--grey-3);
  background: transparent;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.kr-tab:hover { color: var(--paper); }
.kr-tab.is-active {
  color: var(--paper);
  border-bottom-color: var(--paper);
}
.kr-fretboard {
  padding: 10px 0 6px;
  overflow-x: auto;
}
.kr-fb-svg {
  width: 100%;
  height: auto;
  display: block;
  min-width: 480px;
}

/* ---- Akkorde ---- */
.kr-chord-toggle {
  display: flex;
  gap: 4px;
}
.kr-chord-btn {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--grey-3);
  background: rgba(8,10,14,0.5);
  border: 1px solid var(--line);
  padding: 6px 10px;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s;
}
.kr-chord-btn:hover { color: var(--paper); }
.kr-chord-btn.is-active {
  color: var(--paper);
  border-color: var(--paper);
  background: rgba(255,255,255,0.06);
}
.kr-chords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.kr-chord-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 76px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(8,10,14,0.5);
}
.kr-chord-card .kr-chord-roman {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey-3);
  margin-bottom: 4px;
}
.kr-chord-card .kr-chord-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 20px;
  color: var(--paper);
  line-height: 1;
}
.kr-chord-card .kr-chord-diag {
  width: 56px;
  height: auto;
  display: block;
  margin: 10px auto 0;
  opacity: 0.88;
}

/* ---- Play-Button unter jedem Akkord ---- */
.kr-chord-play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin: 10px auto 0;
  border: 1px solid var(--line);
  background: rgba(8,10,14,0.5);
  color: var(--grey-3);
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s, transform 0.08s;
  padding: 0;
}
.kr-chord-play:hover {
  color: var(--paper);
  border-color: var(--paper);
  background: rgba(255,255,255,0.06);
}
.kr-chord-play:active { transform: scale(0.94); }
.kr-play-icon {
  font-size: 9px;
  line-height: 1;
  display: inline-block;
  margin-left: 1px; /* optisch zentriert beim ▶ */
}
.kr-chord-play .kr-play-icon { font-size: 8.5px; }

/* ---- Tempo-Slider in der Progressions-Section-Head ---- */
.kr-tempo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey-3);
}
.kr-tempo input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 120px;
  height: 2px;
  background: rgba(237,237,234,0.18);
  outline: none;
  margin: 0;
  cursor: pointer;
}
.kr-tempo input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px; height: 10px;
  background: var(--paper);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.4);
}
.kr-tempo input[type="range"]::-moz-range-thumb {
  width: 10px; height: 10px;
  background: var(--paper);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}
.kr-tempo-value {
  color: var(--paper);
  letter-spacing: 0.04em;
  min-width: 22px;
  text-align: right;
}
.kr-tempo-unit { color: var(--grey-2); }

/* ---- Progressions ---- */
.kr-progressions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kr-progression {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 8px 14px;
  background: rgba(8,10,14,0.4);
  border-left: 1px solid var(--line);
  transition: border-color 0.12s, background 0.12s;
}
.kr-progression:hover {
  border-left-color: var(--paper);
  background: rgba(8,10,14,0.6);
}
.kr-progression.is-playing {
  border-left-color: rgba(232,200,120,0.85);
  background: rgba(232,200,120,0.06);
}

/* ---- Play/Stop-Button am Anfang jeder Progression ---- */
.kr-prog-play {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: rgba(8,10,14,0.5);
  color: var(--grey-3);
  border-radius: 50%;
  cursor: pointer;
  padding: 0;
  margin-right: 2px;
  transition: color 0.15s, border-color 0.15s, background 0.15s, transform 0.08s;
}
.kr-prog-play:hover {
  color: var(--paper);
  border-color: var(--paper);
  background: rgba(255,255,255,0.06);
}
.kr-prog-play:active { transform: scale(0.94); }
.kr-progression.is-playing .kr-prog-play {
  color: rgba(232,200,120,1);
  border-color: rgba(232,200,120,0.85);
  background: rgba(232,200,120,0.12);
}

/* ---- Highlight des aktuell klingenden Akkords in der Progression ---- */
.kr-prog-chord.is-current .kr-prog-chord-label {
  color: rgba(248,220,170,1);
  text-shadow: 0 0 4px rgba(232,200,120,0.4);
}
.kr-prog-chord.is-current .kr-chord-diag {
  opacity: 1;
}
.kr-prog-name {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey-3);
  min-width: 200px;
}
.kr-prog-chords {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
}
.kr-prog-chord {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.kr-prog-chord-label {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--paper);
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  line-height: 1;
}
.kr-prog-chord-label sub {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.06em;
  color: var(--grey-3);
  margin-left: 1px;
  vertical-align: baseline;
}
.kr-prog-chord-diag .kr-chord-diag {
  width: 38px;
  height: auto;
  display: block;
  opacity: 0.75;
}
.kr-prog-sep {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--grey-2);
  margin: 0 2px;
  align-self: flex-start;
  padding-top: 2px;
}

/* Mit Diagrammen: Zeile am oberen Rand ausrichten, größerer Gap */
.kr-progression.has-diagrams {
  align-items: flex-start;
  padding: 12px 14px 14px;
}
.kr-progression.has-diagrams .kr-prog-name {
  padding-top: 4px;
}
.kr-progression.has-diagrams .kr-prog-chords {
  align-items: flex-start;
  gap: 8px;
}

.kr-empty {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--grey-3);
  padding: 14px 0;
}

/* ---- Foot ---- */
.kr-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  margin-top: auto;
  border-top: 1px solid var(--line);
}
.kr-foot-brand {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--grey-2);
}
.kr-close-btn {
  background: none;
  border: none;
  color: var(--grey-3);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 4px 6px;
  border-bottom: 1px dotted var(--grey-2);
  transition: color 0.15s, border-color 0.15s;
}
.kr-close-btn:hover { color: var(--paper); border-color: var(--paper); }

/* ---- Mobile ---- */
@media (max-width: 760px) {
  .klangraum-page-root,
  .klangraum-popover {
    margin: 24px auto;
    padding: 0 12px;
  }
  .kr-frame { padding: 20px 18px 0; }
  .kr-head-title { font-size: 28px; }
  .kr-prog-name { min-width: auto; }
  .kr-progression { flex-direction: column; gap: 4px; }
}