* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 30px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 10px;
    font-size: 2rem;
}

.download-link {
    text-align: center;
    margin-bottom: 25px;
}

.download-link a {
    color: #667eea;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.download-link a:hover {
    color: #764ba2;
    text-decoration: underline;
}

h2 {
    color: #555;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
    margin-top: 30px;
}

.input-section {
    margin-bottom: 30px;
}

#abc-input {
    width: 100%;
    height: 200px;
    font-family: 'Courier New', Consolas, monospace;
    font-size: 14px;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    resize: vertical;
    transition: border-color 0.3s;
}

#abc-input:focus {
    outline: none;
    border-color: #667eea;
}

.controls {
    margin-top: 15px;
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.controls label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: #555;
}

.speed-control {
    min-width: 160px;
}

.speed-control input[type="range"] {
    width: 80px;
    cursor: pointer;
}

#speed-value {
    min-width: 40px;
    text-align: right;
    font-size: 12px;
}

.controls select {
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
}

.controls button {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

#render-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

#render-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

#export-btn {
    background: #28a745;
    color: white;
}

#export-btn:hover {
    background: #218838;
    transform: translateY(-2px);
}

#play-btn {
    background: #17a2b8;
    color: white;
}

#play-btn:hover:not(:disabled) {
    background: #138496;
    transform: translateY(-2px);
}

#play-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

#stop-btn {
    background: #dc3545;
    color: white;
}

#stop-btn:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
}

#stop-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.audio-controls {
    margin: 15px 0;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
}

.audio-controls:empty {
    display: none;
}

.output-section {
    background: #fafafa;
    border-radius: 12px;
    padding: 20px;
    min-height: 200px;
}

#paper {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 10px;
}

#paper svg {
    width: 100%;
    height: auto;
}

#tablature {
    background: white;
    border-radius: 8px;
    padding: 10px;
    overflow-x: auto;
    min-height: 0;
}

/* Inline tablature styling */
.flute-tab circle {
    transition: opacity 0.2s;
}

#paper svg {
    overflow: visible;
}

.tab-container {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    justify-content: flex-start;
    align-items: flex-start;
}

.tab-measure {
    display: flex;
    align-items: flex-start;
    padding-right: 15px;
    border-right: 2px solid #333;
    margin-right: 10px;
}

.tab-measure:last-child {
    border-right: none;
}

.tab-note {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 4px;
    min-width: 24px;
}

.tab-note-name {
    font-size: 11px;
    font-weight: bold;
    color: #333;
    margin-bottom: 4px;
    height: 16px;
}

.tab-holes {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.tab-hole {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
}

.tab-hole.closed {
    background: #333;
}

.tab-hole.open {
    background: white;
}

.tab-hole.half {
    background: linear-gradient(90deg, #333 50%, white 50%);
}

.tab-octave {
    font-size: 14px;
    font-weight: bold;
    color: #667eea;
    margin-top: 4px;
    height: 18px;
}

.tab-rest {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 8px;
    min-width: 24px;
}

.tab-rest-symbol {
    font-size: 24px;
    color: #666;
    height: 100px;
    display: flex;
    align-items: center;
}

/* Tune Library Section */
.tune-library-section {
    margin-top: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border: 1px solid #dee2e6;
}

.tune-library-section h2 {
    margin-top: 0;
    color: #495057;
    border-bottom-color: #667eea;
}

.tune-library-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

#tune-select {
    flex: 1;
    min-width: 200px;
    padding: 12px 15px;
    font-size: 16px;
    border: 2px solid #667eea;
    border-radius: 8px;
    background: white;
    color: #333;
    cursor: pointer;
    transition: all 0.3s;
}

#tune-select:focus {
    outline: none;
    border-color: #764ba2;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

#tune-select:hover {
    border-color: #764ba2;
}

#load-tune-btn {
    padding: 12px 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

#load-tune-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

#load-tune-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.examples-section {
    margin-top: 30px;
}

.example-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.example-btn {
    padding: 10px 20px;
    border: 2px solid #667eea;
    background: white;
    color: #667eea;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.example-btn:hover {
    background: #667eea;
    color: white;
}

.help-section {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
}

.legend {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend .hole {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid #333;
}

.legend .hole.filled {
    background: #333;
}

.legend .hole.open {
    background: white;
}

.legend .hole.half {
    background: linear-gradient(90deg, #333 50%, white 50%);
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 15px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .controls button {
        width: 100%;
    }
}

/* Footer */
.site-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.site-footer a {
    color: #888;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.site-footer a:hover {
    color: #667eea;
}

/* Print styles */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .container {
        box-shadow: none;
    }
    
    .input-section,
    .examples-section,
    .tune-library-section,
    .help-section,
    .controls,
    .site-footer {
        display: none;
    }
    
    #paper, #tablature {
        break-inside: avoid;
    }
}