/* Leonardo's Mechanical Ensemble - Renaissance Styling */

/* CSS Custom Properties for Renaissance Theme */
:root {
    /* Renaissance Color Palette */
    --color-primary: #8B4513; /* Saddle Brown - Leonardo's manuscript brown */
    --color-secondary: #D2691E; /* Chocolate - Warm accent */
    --color-accent: #FFD700; /* Gold - Renaissance luxury */
    --color-accent-dark: #B8860B; /* Dark Goldenrod */
    --color-parchment: #F4E4C1; /* Antique parchment */
    --color-parchment-dark: #E8D4A8;
    --color-ink: #2C1810; /* Dark brown ink */
    --color-ink-light: #5D4037;
    --color-crimson: #8B0000; /* Deep crimson */
    --color-crimson-light: #CD5C5C;
    --color-sage: #87A96B; /* Sage green */
    --color-sage-light: #A4C2A5;
    
    /* Text Colors */
    --text-primary: var(--color-ink);
    --text-secondary: var(--color-ink-light);
    --text-accent: var(--color-accent);
    --text-on-dark: #FFFFFF;
    
    /* Background Colors */
    --bg-primary: var(--color-parchment);
    --bg-secondary: var(--color-parchment-dark);
    --bg-court: linear-gradient(135deg, #F5E6D3, #E8D4A8, #D4B896);
    --bg-panel: rgba(244, 228, 193, 0.95);
    --bg-overlay: rgba(44, 24, 16, 0.8);
    
    /* Typography */
    --font-primary: 'Cinzel', serif; /* Renaissance-style display font */
    --font-secondary: 'Crimson Text', serif; /* Body text font */
    --font-mono: 'Courier New', monospace; /* For technical elements */
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(44, 24, 16, 0.1);
    --shadow-md: 0 4px 8px rgba(44, 24, 16, 0.15);
    --shadow-lg: 0 8px 16px rgba(44, 24, 16, 0.2);
    --shadow-xl: 0 12px 24px rgba(44, 24, 16, 0.25);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-court);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Main App Container */
.renaissance-court {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styling */
.court-header {
    background: linear-gradient(135deg, 
        var(--color-primary) 0%, 
        var(--color-secondary) 50%, 
        var(--color-primary) 100%);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    border-bottom: 4px solid var(--color-accent);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.court-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M0,0 L100,100 M100,0 L0,100" stroke="rgba(255,215,0,0.1)" stroke-width="0.5"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.header-decoration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.fleur-de-lis {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    clip-path: polygon(50% 0%, 35% 25%, 35% 45%, 20% 45%, 20% 60%, 35% 60%, 35% 80%, 50% 100%, 65% 80%, 65% 60%, 80% 60%, 80% 45%, 65% 45%, 65% 25%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.page-title {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    color: var(--text-on-dark);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.05em;
}

.subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--color-accent);
    font-style: italic;
    font-weight: 400;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Main Content Area */
.court-main {
    flex: 1;
    padding: var(--spacing-lg) var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* Court Scene Styling */
.court-scene {
    position: relative;
    background: var(--bg-court);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    border: 3px solid var(--color-primary);
    overflow: hidden;
}

.court-floor {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(180deg, 
        rgba(139, 69, 19, 0.1) 0%, 
        rgba(139, 69, 19, 0.3) 100%);
    border-top: 2px solid var(--color-secondary);
}

.court-walls {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(180deg, 
        rgba(44, 24, 16, 0.2) 0%, 
        transparent 100%);
}

.tapestry {
    position: absolute;
    top: 20px;
    width: 80px;
    height: 120px;
    background: linear-gradient(135deg, 
        var(--color-crimson) 0%, 
        var(--color-crimson-light) 50%, 
        var(--color-crimson) 100%);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.tapestry::before {
    content: '\2756';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    opacity: 0.7;
}

.left-tapestry {
    left: 20px;
}

.right-tapestry {
    right: 20px;
}

/* Instruments Stage */
.instruments-stage {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
    margin-top: var(--spacing-lg);
}

.instrument-container {
    background: var(--bg-panel);
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    cursor: pointer;
}

.instrument-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.instrument-container.active {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 20px rgba(255, 215, 0, 0.3); }
    to { box-shadow: 0 0 30px rgba(255, 215, 0, 0.5); }
}

.instrument-canvas {
    width: 100%;
    height: auto;
    max-width: 300px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.8) 0%, 
        rgba(255, 255, 255, 0.6) 100%);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.instrument-label h3 {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    color: var(--color-primary);
    margin: var(--spacing-sm) 0 var(--spacing-xs);
}

.instrument-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Music Visualization Section */
.music-visualization {
    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);
}

.notation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.notation-header h2 {
    font-family: var(--font-primary);
    color: var(--color-primary);
    font-size: 1.8rem;
}

.view-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.view-btn {
    background: var(--color-secondary);
    color: var(--text-on-dark);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-secondary);
}

.view-btn:hover {
    background: var(--color-primary);
}

.view-btn.active {
    background: var(--color-accent);
    color: var(--color-ink);
}

.notation-display {
    background: var(--color-parchment);
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    overflow: auto;
}

.notation-canvas {
    width: 100%;
    height: auto;
    display: block;
}

.timeline-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.timeline-track {
    flex: 1;
    height: 8px;
    background: var(--color-secondary);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.timeline-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
    width: 0%;
    transition: width 0.1s linear;
}

.timeline-marker {
    position: absolute;
    top: -4px;
    left: 0%;
    width: 16px;
    height: 16px;
    background: var(--color-accent);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    transition: left 0.1s linear;
}

.time-display {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-width: 100px;
    text-align: center;
}

/* Control Panel */
.control-panel {
    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);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-lg);
}

.playback-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.control-btn {
    background: var(--color-secondary);
    color: var(--text-on-dark);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.control-btn:hover:not(:disabled) {
    background: var(--color-primary);
    transform: scale(1.1);
}

.control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tempo-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 200px;
}

.tempo-control label {
    font-weight: 600;
    color: var(--color-primary);
    min-width: 60px;
}

.tempo-control input[type="range"] {
    flex: 1;
    height: 6px;
    background: var(--color-secondary);
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.tempo-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-accent);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

.tempo-display {
    font-family: var(--font-mono);
    min-width: 80px;
    text-align: center;
    color: var(--text-secondary);
}

.composition-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-width: 200px;
}

.composition-selector label {
    font-weight: 600;
    color: var(--color-primary);
}

.composition-selector select {
    padding: var(--spacing-xs);
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-sm);
    background: var(--color-parchment);
    color: var(--text-primary);
    font-family: var(--font-secondary);
    cursor: pointer;
}

/* Footer */
.court-footer {
    background: var(--color-primary);
    color: var(--text-on-dark);
    text-align: center;
    padding: var(--spacing-lg);
    border-top: 3px solid var(--color-accent);
    margin-top: auto;
}

.footer-content p {
    margin: var(--spacing-xs) 0;
    opacity: 0.9;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity var(--transition-slow);
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
    color: var(--text-on-dark);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 215, 0, 0.3);
    border-top: 4px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp var(--transition-medium) ease-out;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Voice Panel */
.leonardo-voice-panel {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(244, 228, 193, 0.95);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    max-width: 300px;
    z-index: 100;
    transition: all var(--transition-medium);
    cursor: pointer;
}

.leonardo-voice-panel:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
}

.leonardo-voice-panel .leonardo-mirror-decoder {
    margin-bottom: var(--spacing-sm);
}

.leonardo-voice-panel .leonardo-marginalia {
    font-size: 0.8rem;
    line-height: 1.4;
    color: var(--text-secondary);
    font-style: italic;
    border-left: 2px solid var(--color-accent);
    padding-left: var(--spacing-sm);
    margin: 0;
}

.leonardo-mirror-decoder {
    position: relative;
    display: inline-block;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--color-primary);
}

.leonardo-mirror-decoder .mirror-text {
    display: inline-block;
    transform: scaleX(-1);
    direction: rtl;
    unicode-bidi: bidi-override;
    opacity: 0.7;
    transition: all var(--transition-medium);
    letter-spacing: 0.1em;
}

.leonardo-mirror-decoder:hover .mirror-text {
    opacity: 1;
    transform: scaleX(1);
    color: var(--color-accent);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.leonardo-mirror-decoder .decoder-hint {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--color-accent-dark);
    opacity: 0;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
    background: rgba(44, 24, 16, 0.8);
    padding: 2px 6px;
    border-radius: 3px;
}

.leonardo-mirror-decoder:hover .decoder-hint {
    opacity: 1;
}

/* Instrument Cards */
.instrument-leonardo-note {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    font-style: italic;
    color: var(--color-primary);
    opacity: 0;
    transform: scale(0.8);
    transition: all var(--transition-medium);
    z-index: 10;
}

.instrument-container:hover .instrument-leonardo-note {
    opacity: 1;
    transform: scale(1);
}

/* Loading Screen */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        var(--color-parchment) 0%, 
        var(--color-parchment-dark) 50%, 
        var(--color-parchment) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-slow);
}

.loading-content {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-parchment);
    border-top: 4px solid var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-content p {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    color: var(--color-primary);
    margin: 0;
}

.leonardo-loading-quote {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
    opacity: 0.8;
}

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

.info-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-secondary);
}

.tab-btn {
    background: none;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    border-bottom: 3px solid transparent;
}

.tab-btn:hover {
    color: var(--color-accent);
    background: rgba(255, 215, 0, 0.1);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-accent);
}

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

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

.tab-panel h3 {
    font-family: var(--font-primary);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.tab-panel p {
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.tab-panel ul {
    list-style: none;
    padding-left: 0;
}

.tab-panel li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--text-secondary);
}

.tab-panel li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* Responsive Design */
@media (max-width: 768px) {
    .leonardo-voice-panel {
        position: relative;
        top: auto;
        right: auto;
        margin: var(--spacing-md) auto;
        max-width: none;
    }
    
    .instrument-leonardo-note {
        position: relative;
        top: auto;
        right: auto;
        margin: var(--spacing-xs) 0;
        opacity: 1;
        transform: scale(1);
    }
    
    .info-tabs {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .tab-btn {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }
}
/* Loading Progress */
.loading-progress {
    margin-top: var(--spacing-lg);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(44, 24, 16, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, 
        var(--color-accent-dark) 0%, 
        var(--color-accent) 50%, 
        var(--color-accent-dark) 100%);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
    animation: progressGlow 2s ease-in-out infinite alternate;
}

@keyframes progressGlow {
    from { box-shadow: 0 0 5px rgba(255, 215, 0, 0.5); }
    to { box-shadow: 0 0 15px rgba(255, 215, 0, 0.8); }
}

.progress-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
}