/* Seitenspezifische Stile für den Akkorde-Explorer (Theory/Chord.html).
   Baut auf css/base.css auf und nutzt dessen Farb-Variablen. */

/* ── Kapitel-Layout ─────────────────────────── */
.chord-chapter {
    max-width: 900px;
    margin: 0 auto 48px;
    padding: 0 20px;
}

.chapter-head {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin: 0 auto 16px;
    max-width: 760px;
}

.chapter-num {
    font-size: 42px;
    font-weight: bold;
    line-height: 1;
    color: var(--color-interval);
    flex-shrink: 0;
}

.chapter-head h2 {
    margin: 0;
    font-size: 26px;
    color: #333;
}

/* Textblock im Stil der Erklärungs-Box, aber linksbündig für die Kapitel */
.chord-chapter .explainer-box {
    text-align: left;
}

/* ── Bedienelemente (Chips) ─────────────────── */
.control-label {
    max-width: 760px;
    margin: 20px auto 8px;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: bold;
    color: #666;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 760px;
    margin: 0 auto 20px;
}

.chip {
    padding: 8px 14px;
    font-size: 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    background: #f5f5f5;
    color: #333;
    cursor: pointer;
    transition: background .15s, box-shadow .15s;
}

.chip:hover {
    background: #e8e8e8;
}

.chip.active {
    background: var(--color-interval);
    border-color: var(--color-interval);
    color: #fff;
}

/* ── Halbton-Leiste (instrumentneutral) ─────── */
.semitone-strip {
    display: flex;
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    border: 2px solid var(--nut);
    border-radius: 6px;
    overflow: hidden;
    background: #fff;
    user-select: none;
}

.semitone-cell {
    flex: 1;
    min-width: 0;
    box-sizing: border-box;
    height: 84px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    background: #fff;
    color: #333;
    border-left: 1px solid var(--string);
    transition: background .12s;
}

.semitone-cell:first-child {
    border-left: 0;
}

/* Oktavgrenze (jedes C) dicker abtrennen */
.semitone-cell.octave {
    border-left: 2px solid var(--nut);
}

.semitone-cell:first-child.octave {
    border-left: 0;
}

/* C-Spalten leicht getönt, damit die Oktaven sichtbar sind */
.semitone-cell.octave-tint {
    background: #ececec;
}

.semitone-cell.active {
    background: var(--color-interval);
    color: #fff;
}

.semitone-cell.root {
    background: var(--color-root);
    color: #fff;
}

.semitone-cell .cell-name {
    font-size: 10px;
    letter-spacing: 0.04em;
    opacity: 0.7;
}

.semitone-cell.active .cell-name,
.semitone-cell.root .cell-name {
    opacity: 0.85;
}

.semitone-cell .cell-deg {
    font-weight: bold;
    font-size: 15px;
    min-height: 15px;
}

.strip-caption {
    max-width: 760px;
    margin: 10px auto 0;
    font-size: 13px;
    color: #888;
}

/* ── Ergebnis-Panel ─────────────────────────── */
.result-panel {
    max-width: 760px;
    margin: 20px auto 0;
    padding: 18px 24px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
    color: #333;
    line-height: 1.5;
}

.result-panel .result-eyebrow {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-interval);
    font-weight: bold;
    margin-bottom: 6px;
}

.result-panel .result-title {
    font-size: 22px;
    font-weight: bold;
}

.result-panel .result-desc {
    margin: 8px 0 0;
    font-size: 16px;
}

/* Kennzahlen-Raster (Akkord / Töne / Bauplan / Klang) */
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
    gap: 1px;
    max-width: 760px;
    margin: 20px auto 0;
    background: #e2e2e2;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    overflow: hidden;
}

.result-grid .grid-item {
    background: #fff;
    padding: 16px 18px;
}

.result-grid .grid-label {
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-interval);
    font-weight: bold;
}

.result-grid .grid-value {
    font-size: 22px;
    font-weight: bold;
    margin-top: 4px;
    color: #333;
}

.result-grid .grid-value.small {
    font-size: 15px;
    font-weight: normal;
    line-height: 1.4;
}

/* ── Explorer-Kopfzeile ─────────────────────── */
.exp-header {
    max-width: 760px;
    margin: 0 auto 24px;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
}

.exp-header .exp-symbol {
    font-size: 48px;
    font-weight: bold;
    line-height: 1;
    color: var(--color-interval);
}

.exp-header .exp-notes {
    font-size: 20px;
    font-weight: bold;
    color: #333;
}

.exp-header .exp-intervals {
    font-size: 13px;
    color: #666;
    margin-top: 2px;
}

/* ── Info-Tabelle (Intervallübersicht) ──────── */
.chord-table-wrap {
    max-width: 760px;
    margin: 28px auto 0;
    overflow-x: auto;
}

.chord-table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
    font-size: 15px;
}

.chord-table th,
.chord-table td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid #eee;
}

.chord-table th {
    background: var(--color-interval);
    color: #fff;
    font-size: 13px;
    letter-spacing: 0.04em;
}

.chord-table tr:last-child td {
    border-bottom: 0;
}

.chord-table tr:nth-child(even) td {
    background: #fafafa;
}

/* ── Akkordart-Abzeichen (Stufenakkorde) ────── */
.quality-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: bold;
    color: #fff;
    white-space: nowrap;
}

.quality-badge.q-dur {
    background: var(--color-root);
}

.quality-badge.q-moll {
    background: var(--color-interval);
}

.quality-badge.q-dim {
    background: #8a6d3b;
}

/* ── Abschluss-Band ("Zum Mitnehmen") ───────── */
.chord-summary {
    background: var(--color-interval);
    color: #fff;
    margin-top: 48px;
    padding: 56px 20px;
}

.chord-summary-inner {
    max-width: 900px;
    margin: 0 auto;
}

.chord-summary .summary-eyebrow {
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 16px;
}

.chord-summary h2 {
    font-size: 30px;
    line-height: 1.15;
    margin: 0 0 32px;
    max-width: 700px;
}

.chord-summary .summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, .4);
    border: 1px solid rgba(255, 255, 255, .4);
    border-radius: 8px;
    overflow: hidden;
}

.chord-summary .summary-item {
    background: var(--color-interval);
    padding: 20px 22px;
}

.chord-summary .summary-formula {
    font-size: 24px;
    font-weight: bold;
}

.chord-summary .summary-caption {
    font-size: 14px;
    margin-top: 6px;
    opacity: 0.9;
}