/* CSS Variables for Theme Support */
:root {
    /* Light theme colors */
    --bg-primary: #f5f5f5;
    --bg-secondary: white;
    --bg-tertiary: #f8f9fa;
    --bg-success: #d4edda;
    --bg-highlight: #ddae19;
    --bg-bar-highlight: #f2e8ce;
    --bg-hover: #f0f0f0;
    
    --text-primary: #333;
    --text-secondary: #555;
    --text-tertiary: #666;
    --text-success: #155724;
    --text-muted: #495057;
    --text-info: #007bff;
    
    --border-primary: #ddd;
    --border-secondary: #dee2e6;
    --border-success: #c3e6cb;
    
    --btn-primary: #007bff;
    --btn-primary-hover: #0056b3;
    --btn-success: #28a745;
    --btn-success-hover: #218838;
    --btn-danger: #dc3545;
    --btn-danger-hover: #c82333;
    --btn-secondary: #6c757d;
    --btn-secondary-hover: #5a6268;
    
    --stroke-r: #dc3545;
    --stroke-l: #0d6efd;
    --stroke-k: #198754;
    --stroke-m: #404040;
    
    --shadow-light: rgba(0,0,0,0.1);
    --shadow-medium: rgba(0,0,0,0.2);
    --shadow-glow: rgba(255, 234, 167, 0.8);
}

/* Dark theme colors */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --bg-success: #1e3a2e;
    --bg-highlight: #4a4a2a;
    --bg-bar-highlight: #cecece9a;
    --bg-hover: #404040;
    
    --text-primary: #e0e0e0;
    --text-secondary: #cccccc;
    --text-tertiary: #aaaaaa;
    --text-success: #90ee90;
    --text-muted: #b0b0b0;
    --text-info: #4da6ff;
    
    --border-primary: #555;
    --border-secondary: #444;
    --border-success: #4a5d4a;
    
    --btn-primary: #0d6efd;
    --btn-primary-hover: #0b5ed7;
    --btn-success: #198754;
    --btn-success-hover: #157347;
    --btn-danger: #dc3545;
    --btn-danger-hover: #bb2d3b;
    --btn-secondary: #6c757d;
    --btn-secondary-hover: #5c636a;
    --btn-secondary-active: #4c535a;
    
    --stroke-r: #ff6b6b;
    --stroke-l: #4dabf7;
    --stroke-k: #51cf66;
    --stroke-m: #404040;
    
    --shadow-light: rgba(0,0,0,0.3);
    --shadow-medium: rgba(0,0,0,0.4);
    --shadow-glow: rgba(255, 234, 167, 0.3);
}

body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    background-color: var(--bg-secondary);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--shadow-light);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

h1 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 30px;
}

.tab-buttons {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 0;
    border-bottom: 2px solid var(--border-primary);
}

.tab-button {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 12px 30px;
    border: 2px solid var(--border-primary);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    font-size: 16px;
    cursor: pointer;
    margin-right: 2px;
    position: relative;
    transition: all 0.3s ease;
    top: 2px;
}

.tab-button:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.tab-button:last-child {
    margin-right: 0;
}

.selected-tab {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-primary);
    top: 2px;
    z-index: 1;
}

.selected-tab::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--bg-secondary);
}

.exercise-tab {
    border: 2px solid var(--border-primary);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 20px;
    background-color: var(--bg-secondary);
}


.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-row.strokes-row {
    flex-direction: column;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-secondary);
}

input[type="text"], input[type="number"], select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    font-size: 16px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

input[type="text"]:focus, input[type="number"]:focus, select:focus {
    outline: none;
    border-color: var(--btn-primary);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.submit-btn {
    background-color: var(--btn-primary);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
    transition: background-color 0.3s ease;
}

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

.textarea-container {
    padding: 10px;
    min-height: 100px;
    resize: vertical;
}

#exercise-editor-input {
    width: 100%;
    font-size: 16px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.exercise-div {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--bg-success);
    border: 1px solid var(--border-success);
    border-radius: 4px;
    color: var(--text-success);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.stroke-r {
    color: var(--stroke-r);
    font-weight: bold;
}

.stroke-l {
    color: var(--stroke-l);
    font-weight: bold;
}

.stroke-k {
    color: var(--stroke-k);
    font-weight: bold;
}

.stroke-m {
    color: var(--stroke-m);
    font-weight: bold;
}

.stroke-r-lower {
    color: var(--stroke-r);
    font-weight: bold;
    font-size: 20px;
}

.stroke-l-lower {
    color: var(--stroke-l);
    font-weight: bold;
    font-size: 20px;
}

.metronome-section {
    margin-top: 30px;
    padding: 20px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-secondary);
    border-radius: 8px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.metronome-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 15px;
}

.metronome-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.play-btn {
    background-color: var(--btn-success);
    color: white;
}

.play-btn:hover {
    background-color: var(--btn-success-hover);
}

.stop-btn {
    background-color: var(--btn-danger);
    color: white;
}

.stop-btn:hover {
    background-color: var(--btn-danger-hover);
}

.bpm-display {
    font-size: 18px;
    font-weight: bold;
    color: var(--text-muted);
}

.stroke-highlight {
    background-color: var(--bg-highlight);
    padding: 0px;
    border-radius: 3px;
    box-shadow: 0 0 8px var(--shadow-glow);
    transition: all 0.1s ease;
}

.bar-highlight {
    background-color: var(--bg-bar-highlight);
    padding: 0px;
    border-radius: 3px;
    box-shadow: 0 0 8px var(--shadow-glow);
    transition: all 0.1s ease;
}

.exercise-display {
    font-family: monospace;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.5;
    /* Disable text selection so cycling through strokes doesn't select the text */
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.stroke-span {
    cursor: pointer;
    padding: 0px 0px;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.stroke-span:hover {
    background-color: var(--bg-hover);
    transform: scale(1.1);
    box-shadow: 0 2px 4px var(--shadow-medium);
}

.highlight-on-click {
    margin-top: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.highlight-on-click-label {
    font-size: 12px;
    color: var(--text-primary);
}

.copy-button {
    background-color: var(--btn-secondary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s ease;
}

.copy-button:hover {
    background-color: var(--btn-secondary-hover);
}

.copy-button.copied {
    background-color: var(--btn-success);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--btn-secondary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-medium);
    transition: all 0.3s ease;
    z-index: 1000;
}

.theme-toggle:hover {
    background-color: var(--btn-secondary-hover);
    transform: scale(1.1);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.debug-button {
    position: fixed;
    top: 70px;
    right: 20px;
    background-color: var(--btn-secondary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 8px var(--shadow-medium);
    transition: all 0.3s ease;
    z-index: 1000;
}

.debug-button:hover {
    background-color: var(--btn-primary);
    transform: scale(1.1);
}

.debug-button:active {
    transform: scale(0.95);
    
}

.debug-button-enabled {
    background-color: var(--btn-primary);
}

/* Footer styles */
.footer {
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid var(--border-secondary);
    color: var(--text-tertiary);
    transition: border-color 0.3s ease;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-item {
    font-size: 14px;
}

.footer-item strong {
    color: var(--text-primary);
}

/* Footer link styles */
.footer-item a {
    color: var(--text-info);
    text-decoration: none;
    font-weight: 500;
}

.footer-item a:hover {
    color: var(--btn-primary);
    text-decoration: underline;
}

.footer-item a:visited {
    color: var(--text-info);
}

/* Responsive footer */
@media (max-width: 600px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .theme-toggle {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}