/* ============================================
   CIRCLE OF FIFTHS - PAGE SPECIFIC STYLES
   ============================================ */

/* Circle Display Area */
.circle-display {
    padding: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.circle-container {
    width: 100%;
    max-width: 420px;
    aspect-ratio: 1;
}

.circle-container svg {
    width: 100%;
    height: 100%;
}

/* Circle Segments */
.key-segment {
    cursor: pointer;
    transition: all 0.2s ease;
}

.key-segment:hover .segment-bg {
    fill: rgba(20, 184, 166, 0.15);
}

.key-segment.active .segment-bg {
    fill: rgba(20, 184, 166, 0.25);
}

.key-segment.related .segment-bg {
    fill: rgba(245, 158, 11, 0.15);
}

.segment-bg {
    fill: transparent;
    stroke: var(--border);
    stroke-width: 1;
    transition: fill 0.2s ease;
}

.key-label-major {
    font-size: 14px;
    font-weight: 700;
    fill: var(--text);
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

.key-label-minor {
    font-size: 11px;
    font-weight: 500;
    fill: var(--text-light);
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

.key-segment.active .key-label-major {
    fill: var(--primary);
}

.center-circle {
    fill: var(--card);
    stroke: var(--border);
    stroke-width: 2;
}

.center-label {
    font-size: 10px;
    font-weight: 600;
    fill: var(--text-light);
    text-anchor: middle;
    dominant-baseline: middle;
}

/* Direction Arrows */
.direction-indicator {
    position: absolute;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

.direction-cw {
    right: 20px;
    top: 50%;
}

.direction-ccw {
    left: 20px;
    top: 50%;
}

/* Key Info Panel */
.key-info-panel {
    padding: 20px;
    border-top: 1px solid var(--border);
    background: var(--bg);
}

.key-info-placeholder {
    text-align: center;
    padding: 20px;
    color: var(--text-light);
    font-size: 14px;
}

.key-info-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.info-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.info-card-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.info-card-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}

.info-card-sub {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
}

/* Key Signature Display */
.key-sig-display {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.accidental {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--bg);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

/* Related Keys */
.related-keys-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.related-key {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 16px;
    background: var(--bg);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.related-key:hover {
    background: rgba(20, 184, 166, 0.1);
}

.related-key-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.related-key-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-top: 2px;
}

/* Quick Reference Grid */
.key-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.key-column {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
}

.column-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    text-align: center;
}

.column-title::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    margin-right: 8px;
}

.key-column:first-child .column-title::before {
    background: #ef4444;
}

.key-column:last-child .column-title::before {
    background: #3b82f6;
}

.key-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.key-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.key-item:hover {
    background: rgba(20, 184, 166, 0.1);
}

.key-item.active {
    background: var(--primary);
}

.key-item.active .key-name,
.key-item.active .key-accidentals {
    color: white;
}

.key-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.key-accidentals {
    font-size: 12px;
    color: var(--text-light);
}

/* Play Circle Button */
.play-circle-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-left: auto;
}

.play-circle-btn:hover {
    background: #0d9488;
    transform: translateY(-1px);
}

.play-circle-btn:disabled {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
}

/* Responsive */
@media (max-width: 768px) {
    .circle-display {
        padding: 16px;
        min-height: 320px;
    }

    .circle-container {
        max-width: 320px;
    }

    .key-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .key-info-content {
        grid-template-columns: 1fr;
    }

    .controls-row {
        flex-wrap: wrap;
        gap: 12px;
    }

    .play-circle-btn {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .circle-container {
        max-width: 280px;
    }

    .key-label-major {
        font-size: 12px;
    }

    .key-label-minor {
        font-size: 9px;
    }
}