/* Music Notation and Visualization Styles */

/* Education Panels */
.education-panels {
    background: var(--bg-panel);
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.info-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--color-secondary);
    color: var(--text-on-dark);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    position: relative;
}

.tab-btn:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: var(--color-accent);
    color: var(--color-ink);
    font-weight: 600;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid var(--color-accent);
}

.tab-content {
    position: relative;
    min-height: 200px;
}

.tab-panel {
    display: none;
    animation: fadeIn var(--transition-medium) ease-in;
}

.tab-panel.active {
    display: block;
}

.tab-panel h3 {
    font-family: var(--font-primary);
    color: var(--color-primary);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-md);
}

.tab-panel p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.tab-panel ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.tab-panel li {
    margin-bottom: var(--spacing-xs);
}

/* Music Notation Display */
.notation-canvas {
    background: var(--color-parchment);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-sm);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Staff Line Styling */
.staff-line {
    stroke: var(--color-ink);
    stroke-width: 1;
    opacity: 0.8;
}

.staff-line.highlighted {
    stroke: var(--color-accent);
    stroke-width: 2;
    opacity: 1;
}

/* Note Styling */
.note-head {
    fill: var(--color-ink);
    stroke: var(--color-ink);
    stroke-width: 1;
}

.note-head.active {
    fill: var(--color-accent);
    stroke: var(--color-accent-dark);
    stroke-width: 2;
    filter: drop-shadow(0 0 3px rgba(255, 215, 0, 0.5));
}

.note-stem {
    stroke: var(--color-ink);
    stroke-width: 2;
}

.note-stem.active {
    stroke: var(--color-accent-dark);
    stroke-width: 3;
}

.note-flag {
    fill: var(--color-ink);
}

.note-flag.active {
    fill: var(--color-accent);
}

/* Rest Styling */
.rest-symbol {
    fill: var(--color-ink);
    opacity: 0.8;
}

.rest-symbol.active {
    fill: var(--color-accent);
    opacity: 1;
}

/* Clef and Key Signature */
.clef-symbol {
    fill: var(--color-ink);
    font-size: 48px;
    font-family: 'Bravura', 'Maestro', serif;
}

.key-signature {
    fill: var(--color-ink);
    font-size: 32px;
    font-family: 'Bravura', 'Maestro', serif;
}

.time-signature {
    fill: var(--color-ink);
    font-size: 36px;
    font-family: 'Bravura', 'Maestro', serif;
    font-weight: bold;
}

/* Bar Lines */
.bar-line {
    stroke: var(--color-ink);
    stroke-width: 2;
}

.bar-line.double {
    stroke-width: 1;
}

.bar-line.final {
    stroke-width: 3;
}

/* Tempo and Dynamics Indicators */
.tempo-marking {
    fill: var(--color-crimson);
    font-size: 18px;
    font-family: var(--font-secondary);
    font-style: italic;
}

.dynamic-marking {
    fill: var(--color-crimson);
    font-size: 24px;
    font-family: 'Bravura', 'Maestro', serif;
}

/* Instrument Part Indicators */
.instrument-part {
    fill: var(--color-ink);
    font-size: 14px;
    font-family: var(--font-secondary);
    font-weight: 600;
}

.instrument-part.carillon {
    fill: var(--color-secondary);
}

.instrument-part.drum {
    fill: var(--color-primary);
}

.instrument-part.organ {
    fill: var(--color-sage);
}

.instrument-part.trumpeter {
    fill: var(--color-accent-dark);
}

.instrument-part.flute {
    fill: var(--color-crimson-light);
}

.instrument-part.viola {
    fill: var(--color-sage-light);
}

/* Playback Position Indicator */
.playback-line {
    stroke: var(--color-crimson);
    stroke-width: 3;
    opacity: 0.8;
    animation: playbackPulse 1s ease-in-out infinite;
}

@keyframes playbackPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; }
}

.playback-head {
    fill: var(--color-crimson);
    filter: drop-shadow(0 0 4px rgba(139, 0, 0, 0.5));
}

/* Measure Highlighting */
.measure-highlight {
    fill: rgba(255, 215, 0, 0.1);
    stroke: var(--color-accent);
    stroke-width: 1;
    stroke-dasharray: 5, 5;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.measure-highlight.active {
    opacity: 1;
    animation: measureGlow 2s ease-in-out infinite;
}

@keyframes measureGlow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* Note Connection Lines (for chords) */
.chord-line {
    stroke: var(--color-ink);
    stroke-width: 1;
    opacity: 0.6;
}

.chord-line.active {
    stroke: var(--color-accent);
    stroke-width: 2;
    opacity: 1;
}

/* Slur and Tie Styling */
.slur {
    fill: none;
    stroke: var(--color-ink);
    stroke-width: 2;
    opacity: 0.8;
}

.slur.active {
    stroke: var(--color-accent);
    stroke-width: 3;
    opacity: 1;
}

.tie {
    fill: none;
    stroke: var(--color-ink);
    stroke-width: 1.5;
    opacity: 0.7;
}

.tie.active {
    stroke: var(--color-accent);
    stroke-width: 2;
    opacity: 1;
}

/* Articulation Markings */
.staccato-dot {
    fill: var(--color-ink);
}

.staccato-dot.active {
    fill: var(--color-accent);
}

.accent-mark {
    fill: var(--color-ink);
}

.accent-mark.active {
    fill: var(--color-accent);
}

/* Ornamentation */
.trill-mark {
    fill: var(--color-ink);
    font-size: 16px;
    font-family: 'Bravura', 'Maestro', serif;
}

.trill-mark.active {
    fill: var(--color-accent);
}

.mordent-mark {
    fill: var(--color-ink);
    font-size: 16px;
    font-family: 'Bravura', 'Maestro', serif;
}

.mordent-mark.active {
    fill: var(--color-accent);
}

/* Lyrics and Text */
.lyric-text {
    fill: var(--color-ink);
    font-size: 12px;
    font-family: var(--font-secondary);
    font-style: italic;
}

.lyric-text.active {
    fill: var(--color-accent);
    font-weight: 600;
}

.direction-text {
    fill: var(--color-crimson);
    font-size: 14px;
    font-family: var(--font-secondary);
    font-style: italic;
}

/* Responsive Notation Display */
@media (max-width: 768px) {
    .notation-canvas {
        height: 200px;
    }
    
    .clef-symbol {
        font-size: 36px;
    }
    
    .key-signature {
        font-size: 24px;
    }
    
    .time-signature {
        font-size: 28px;
    }
    
    .tempo-marking {
        font-size: 14px;
    }
    
    .dynamic-marking {
        font-size: 18px;
    }
    
    .instrument-part {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .notation-canvas {
        height: 150px;
    }
    
    .clef-symbol {
        font-size: 28px;
    }
    
    .key-signature {
        font-size: 20px;
    }
    
    .time-signature {
        font-size: 24px;
    }
    
    .tempo-marking {
        font-size: 12px;
    }
    
    .dynamic-marking {
        font-size: 16px;
    }
    
    .instrument-part {
        font-size: 10px;
    }
    
    .lyric-text {
        font-size: 10px;
    }
    
    .direction-text {
        font-size: 12px;
    }
}

/* Notation Loading State */
.notation-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-secondary);
    font-style: italic;
}

.notation-loading::before {
    content: 'MVSICA';
    font-family: var(--font-primary);
    font-size: 1.2rem;
    margin-right: var(--spacing-sm);
    animation: spin 2s linear infinite;
}

/* Notation Error State */
.notation-error {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--color-crimson);
    text-align: center;
    padding: var(--spacing-md);
}

.notation-error::before {
    content: 'ERROR';
    font-family: var(--font-primary);
    font-size: 1.2rem;
    margin-right: var(--spacing-sm);
}

/* Accessibility Enhancements */
.notation-canvas:focus {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.note-head:focus,
.rest-symbol:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .staff-line {
        stroke: var(--color-ink);
        stroke-width: 2;
        opacity: 1;
    }
    
    .note-head {
        stroke-width: 2;
    }
    
    .note-stem {
        stroke-width: 3;
    }
    
    .bar-line {
        stroke-width: 3;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .playback-line {
        animation: none;
    }
    
    .measure-highlight.active {
        animation: none;
    }
    
    .notation-loading::before {
        animation: none;
    }
}