.lyrics_container.layout-lyrics .application-content,
.lyrics_container.layout-guide .application-content {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    overflow: hidden;
}

.lyrics_container.layout-guide #guide-panel {
    flex: 0 0 var(--guide-panel-width, 320px);
    width: var(--guide-panel-width, 320px);
    min-width: 240px;
}

.lyrics_container.layout-guide #lyrics-output {
    flex: 1 1 auto;
    overflow: auto;
}

.lyrics_container.layout-guide {
    background: transparent;
    border: none;
    --guide-panel-width: 320px;
    overflow: hidden;
}

.lyrics_container.layout-lyrics .guide-panel {
    display: none;
}

.lyrics_container.layout-guide textarea {
    display: none;
}

.lyrics_container.layout-guide .guide-panel {
    display: flex;
}

.lyrics_container.layout-guide .lyrics-output {
    flex: 1 1 auto;
}

.lyrics_container.layout-guide #piano-score-editor {
    display: none;
}

.lyrics_container.layout-chords textarea,
.lyrics_container.layout-chords .guide-panel {
    display: none;
}

.lyrics_container.layout-lyrics .lyrics-output,
.lyrics_container.layout-guide .lyrics-output,
.lyrics_container.layout-chords .lyrics-output {
    
   
}

.lyrics_container.layout-lyrics .lyrics-output,
.lyrics_container.layout-guide .lyrics-output,
.lyrics_container.layout-chords .lyrics-output {
    background: var(--theme-surface-2);
    border: 1px solid var(--theme-border-soft);
}

.lyrics_container.layout-lyrics .lyrics-output,
.lyrics_container.layout-guide .lyrics-output,
.lyrics_container.layout-chords .lyrics-output {
    padding-bottom: 48px;
    scroll-padding-bottom: 48px;
    scrollbar-color: var(--theme-accent) var(--theme-surface-2);
}

.lyrics_container.layout-lyrics .lyrics-output::after,
.lyrics_container.layout-guide .lyrics-output::after,
.lyrics_container.layout-chords .lyrics-output::after {
    content: "";
    display: block;
    height: 24px;
    flex-shrink: 0;
}

.lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar,
.lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar,
.lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar {
    width: 8px;
}

.lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar-track,
.lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar-track,
.lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar-track {
    background: var(--theme-surface-2);
    border-radius: 999px;
}

.lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar-thumb,
.lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar-thumb,
.lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar-thumb {
    background: var(--theme-accent);
    border-radius: 999px;
}

.lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar-thumb:hover,
.lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar-thumb:hover,
.lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar-thumb:hover {
    background: var(--theme-accent-strong);
}


.guide-panel {
    display: none;
    position: relative;
    flex: 0 0 var(--guide-panel-width, auto);
    min-width: 240px;
    max-width: 65%;
    width: var(--guide-panel-width, auto);
    max-height: 100%;
    padding: 12px;
    padding-bottom: 28px;
    border-radius: 0;
    background: var(--theme-gradient);
    border: 1px solid var(--rgba-94-96-206-0_28);
    background-clip: padding-box;
    color: var(--theme-text);
    flex-direction: column;
    gap: 12px;
    overflow: auto;
    scroll-padding-bottom: 28px;
    scrollbar-width: thin;
    scrollbar-color: var(--theme-accent) var(--theme-surface-2);
    box-sizing: border-box;
}

.guide-panel::-webkit-scrollbar {
    width: 8px;
}

.guide-panel::-webkit-scrollbar-track {
    background: var(--theme-surface-2);
    border-radius: 999px;
}

.guide-panel::-webkit-scrollbar-thumb {
    background: var(--theme-accent);
    border-radius: 999px;
}

.guide-panel::-webkit-scrollbar-thumb:hover {
    background: var(--theme-accent-strong);
}

.guide-panel-resizer {
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 100%;
    cursor: col-resize;
    display: none;
    touch-action: none;
}

.guide-panel-resizer::after {
    content: "";
    position: absolute;
    top: 20px;
    bottom: 20px;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    border-radius: 999px;
    background: var(--rgba-255-255-255-0_2);
    transition: background 0.2s ease;
}

.guide-panel.is-resizing .guide-panel-resizer::after,
.guide-panel-resizer:hover::after {
    background: var(--theme-accent);
}

.lyrics_container.layout-guide .guide-panel-resizer {
    display: block;
}

body.guide-resize-active {
    cursor: col-resize;
    user-select: none;
}

.guide-panel h3 {
    margin: 0;
    font-size: 18px;
}


.lyrics_container.layout-guide {
    min-height: 0;
}

.lyrics_container.layout-guide .guide-panel {
    display: flex;
    flex: 0 0 var(--guide-panel-width, 320px);
    width: var(--guide-panel-width, 320px);
    max-width: 65%;
    min-width: 240px;
    height: 100%;
    max-height: 100%;
    overflow-y: auto;
}

.lyrics_container.layout-guide .lyrics-output {
    display: block;
    flex: 1 1 auto;
    max-width: none;
    min-height: 0;
}

.guitar-guide-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 2;
    padding: 12px;
    margin: -12px 0 0;
    background: var(--theme-gradient);
    border-radius: 12px;
    border: 1px solid var(--rgba-0-0-0-0_08);
}

.guide-quality-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--rgba-0-0-0-0_7);
}

.guide-quality-select {
    min-width: 120px;
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--rgba-0-0-0-0_2);
    background: var(--rgba-255-255-255-0_95);
    font-size: 14px;
    font-weight: 600;
    color: var(--theme-text);
}

.guide-filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.guide-filter-btn {
    padding: 6px 14px;
    border: 1px solid var(--rgba-0-0-0-0_15);
    border-radius: 999px;
    background: var(--rgba-255-255-255-0_9);
    color: var(--theme-text);
    font-weight: 600;
    cursor: pointer;
}

.guide-filter-btn:hover,
.guide-filter-btn:focus-visible {
    background: var(--theme-surface-1);
    color: var(--theme-text);
    transform: translateY(-1px);
    outline: none;
}

.guide-filter-btn.is-active {
    background: #3cc56b;
    color: #0a1f0a;
    border-color: #2ca75a;
}

.guide-filter-btn.is-active:focus-visible {
}

.guide-filter-btn--unknown {
    background: rgba(220, 53, 69, 0.85);
    border-color: rgba(220, 53, 69, 0.95);
    color: #fff;
}

.guide-filter-btn--unknown:hover,
.guide-filter-btn--unknown:focus-visible {
    background: rgba(220, 53, 69, 1);
    border-color: rgba(220, 53, 69, 1);
    color: #fff;
}

.guide-filter-btn--unknown.is-active {
    background: #ff9800;
    border-color: #cc7a00;
    color: #1f1200;
}

.guide-filter-btn--unknown.is-active:hover,
.guide-filter-btn--unknown.is-active:focus-visible {
    background: #ffb347;
    border-color: #cc7a00;
    color: #1f1200;
}

.guide-chord-detail {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 24px;
    border-radius: 18px;
    border: 1px solid var(--rgba-94-96-206-0_12);
    background: var(--theme-surface-2);
    box-shadow: 0 12px 30px var(--rgba-29-45-83-0_08);
}

.guide-chord-detail__header {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    align-items: center;
}

.guide-chord-detail__title {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--theme-text);
}

.guide-chord-detail__intro {
    margin: 0;
    font-size: 0.95rem;
    color: var(--rgba-29-45-83-0_7);
}

.guide-chord-detail__layout {
    display: grid;
    grid-template-columns: minmax(200px, 300px) minmax(0, 1fr);
    gap: 24px;
    align-items: flex-start;
}

.guide-chord-detail__diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--rgba-94-96-206-0_12);
    background: var(--rgba-255-255-255-0_95);
    min-height: 220px;
}

.guide-chord-detail__diagram-image {
    width: 100%;
    max-width: 240px;
    height: auto;
    object-fit: contain;
}

.guide-chord-detail__diagram-placeholder {
    margin: 0;
    font-size: 0.9rem;
    text-align: center;
    color: var(--rgba-29-45-83-0_65);
}

.guide-chord-detail__tab {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--rgba-94-96-206-0_12);
    background: var(--rgba-255-255-255-0_92);
    min-height: 220px;
}

.guide-chord-detail__tab-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--theme-text);
}

.guide-chord-detail__tab-text {
    margin: 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95rem;
    line-height: 1.45;
    white-space: pre;
}

.guide-chord-detail__tab-empty {
    margin: auto 0 0;
    font-size: 0.9rem;
    color: var(--rgba-29-45-83-0_6);
}

.guide-chord-detail__variations {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.guide-chord-detail__nav-btn {
    border: 1px solid var(--rgba-94-96-206-0_35);
    background: var(--theme-surface-1);
    color: var(--theme-text);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    min-width: 44px;
}

.guide-chord-detail__nav-btn:hover:not(:disabled),
.guide-chord-detail__nav-btn:focus-visible:not(:disabled) {
    outline: none;
    transform: translateY(-1px);
    background: var(--rgba-255-255-255-0_98);
}

.guide-chord-detail__nav-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
}

.guide-chord-detail__indicator {
    font-weight: 600;
    color: var(--theme-text);
    min-width: 70px;
    text-align: center;
}

.guide-chord-detail__tips {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 18px;
    border-radius: 16px;
    border: 1px solid var(--rgba-94-96-206-0_12);
    background: #fff;
    box-shadow: 0 10px 26px var(--rgba-29-45-83-0_06);
}

.guide-chord-detail__tips-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--theme-text);
}

.guide-chord-detail__tips-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.guide-chord-detail__tips-list li {
    position: relative;
    padding-left: 1.6em;
    font-size: 0.9rem;
    color: var(--theme-text);
    line-height: 1.4;
}

.guide-chord-detail__tips-list li::before {
    content: "➡️";
    position: absolute;
    left: 0;
    top: 0;
}

.guide-chord-detail__tips-empty {
    margin: 0;
    font-size: 0.9rem;
    color: var(--rgba-29-45-83-0_6);
}

@media (max-width: 960px) {
    .guide-chord-detail__layout {
        grid-template-columns: 1fr;
    }

    .guide-chord-detail__diagram,
    .guide-chord-detail__tab {
        min-height: auto;
    }
}

.guide-no-result {
    margin: 0;
    font-size: 14px;
    color: var(--rgba-0-0-0-0_6);
}

.guide-placeholder {
    margin: 0;
    font-size: 14px;
    color: var(--rgba-0-0-0-0_54);
}

.guitar-guide-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.guitar-guide-display {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

@media (max-width: 768px) {
    .guide-filter-buttons {
        gap: 6px;
    }

    .guide-filter-btn {
        padding: 6px 12px;
    }

    .chord-card-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .chord-card-media img {
        width: 140px;
        height: 180px;
    }

    .chord-card header {
        flex-direction: column;
        align-items: flex-start;
    }

    .chord-card header audio {
        width: 100%;
    }

    .guitar-chord-layout {
        flex-direction: column;
        padding: 20px;
    }

    .guitar-chord-detail-title {
        font-size: 20px;
    }
}


.guide-panel ul {
    margin: 0 0 8px;
    padding-left: 18px;
}

.guide-panel .chord-tip-list {
    padding-left: 0;
    margin: 0;
}

.guide-panel pre:not(.chord-tip-diagram) {
    margin: 0;
    padding: 8px 10px;
    background: var(--rgba-0-0-0-0_1);
    border-radius: 8px;
    font-size: 13px;
    font-family: 'Courier New', Courier, monospace;
    line-height: 1.4;
}

.guide-panel .chord-fingering {
    font-size: 18px;
    background: var(--rgba-0-0-0-0_04);
    border: 1px solid var(--rgba-0-0-0-0_08);
}

.guide-error {
    color: var(--theme-text);
    font-weight: 600;
}

html.theme-claire .lyrics_container.layout-guide {
    background: transparent;
    border-color: transparent;
}

html.theme-claire .lyrics_container.layout-lyrics .lyrics-output,
html.theme-claire .lyrics_container.layout-guide .lyrics-output,
html.theme-claire .lyrics_container.layout-chords .lyrics-output {
    /*background: var(--claire-surface);*/
    border-color: var(--claire-border);
}

html.theme-claire .lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar-thumb,
html.theme-claire .lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar-thumb,
html.theme-claire .lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar-thumb {
    background: var(--rgba-94-96-206-0_4);
}

html.theme-claire .guide-panel {
    background: linear-gradient(135deg, var(--rgba-94-96-206-0_2), var(--rgba-100-223-223-0_24));
    
    color: var(--claire-text);
}

html.theme-claire .guide-panel::-webkit-scrollbar-thumb {
    background: var(--rgba-94-96-206-0_4);
}

html.theme-claire .lyrics_container.layout-guide {
    background: transparent;
    border-color: transparent;
}

html.theme-sombre .lyrics_container.layout-lyrics,
html.theme-sombre .lyrics_container.layout-guide {
    background: transparent;
    border-color: transparent;
}

html.theme-sombre .lyrics_container.layout-lyrics .lyrics-output,
html.theme-sombre .lyrics_container.layout-guide .lyrics-output,
html.theme-sombre .lyrics_container.layout-chords .lyrics-output {
    background: var(--modern-surface-1);
    border-color: var(--modern-border);
    color: var(--modern-text);
}

html.theme-sombre .lyrics_container.layout-lyrics .lyrics-output::-webkit-scrollbar-thumb,
html.theme-sombre .lyrics_container.layout-guide .lyrics-output::-webkit-scrollbar-thumb,
html.theme-sombre .lyrics_container.layout-chords .lyrics-output::-webkit-scrollbar-thumb {
    background: var(--modern-accent);
}

html.theme-sombre .guide-panel {
    background: var(--modern-surface-1);
    border-color: var(--modern-border);
    color: var(--modern-text);
}

html.theme-sombre .guide-panel::-webkit-scrollbar-thumb {
    background: var(--modern-accent);
}

html.theme-sombre .guide-chord-detail {
    background: var(--modern-surface-1);
    border-color: var(--modern-border);
    color: var(--modern-text);
    box-shadow: 0 14px 34px var(--rgba-9-16-48-0_35);
}

html.theme-sombre .guide-chord-detail__diagram,
html.theme-sombre .guide-chord-detail__tab,
html.theme-sombre .guide-chord-detail__tips {
    background: var(--modern-surface-2);
    border-color: var(--modern-border-soft, var(--modern-border));
    color: var(--modern-text);
}

html.theme-sombre .guide-chord-detail__diagram-placeholder,
html.theme-sombre .guide-chord-detail__tab-empty,
html.theme-sombre .guide-chord-detail__tips-empty {
    color: var(--modern-text-muted, var(--rgba-255-255-255-0_6));
}

html.theme-sombre .guide-chord-detail__nav-btn {
    background: var(--modern-surface-2);
    border-color: var(--modern-border);
    color: var(--modern-text);
}