@charset "UTF-8";

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--font-color);
    padding-top: 40px;
}

.main-container {
    width: 940px;
    margin: 20px auto;
    padding: 0 20px;
}

.analyzer-container {
    background: var(--content-bg-color);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    padding: 30px;
    border: 1px solid var(--border-color);
}

h1 {
    text-align: center;
    color: var(--font-color);
    margin-bottom: 30px;
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    color: var(--font-color);
    margin-bottom: 15px;
    font-size: 1.3rem;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

/* Privacy Notice */
.privacy-notice {
    display: flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, #e8f5e8 0%, #f0f8f0 100%);
    border-left: 4px solid #4CAF50;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
}

[data-theme="dark"] .privacy-notice {
    background: linear-gradient(135deg, #1a3d1a 0%, #2a4d2a 100%);
    border-color: #4a7c4a;
}

.privacy-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.privacy-title {
    color: #2d5a2d;
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 8px 0;
}

[data-theme="dark"] .privacy-title {
    color: #66cc66;
}

.privacy-description {
    color: #4a7c4a;
    font-size: 0.95rem;
    margin: 0;
}

[data-theme="dark"] .privacy-description {
    color: #88aa88;
}

/* Input Section */
.input-section {
    margin-bottom: 30px;
    padding: 0 20px 20px 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.input-controls {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-group label {
    font-weight: 600;
    color: var(--font-color);
    white-space: nowrap;
}

.input-group select,
.input-group input[type="file"] {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    background: var(--content-bg-color);
    color: var(--font-color);
    font-size: 0.9rem;
}

/* Button Styles */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    font-size: 1.1rem;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--alt-content-bg-color);
    color: var(--font-color);
    border: 2px solid var(--border-color);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Controls Section */
.controls-section {
    margin-bottom: 30px;
    padding: 0 20px 20px 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-group label {
    font-weight: 600;
    color: var(--font-color);
    font-size: 0.9rem;
}

.control-group select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    background: var(--content-bg-color);
    color: var(--font-color);
    font-size: 0.9rem;
}

.control-group input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #007bff;
    cursor: pointer;
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #007bff;
    cursor: pointer;
    border: none;
}

/* Level Section */
.level-section {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.level-meter-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--content-bg-color);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.level-meter {
    flex: 1;
    height: 20px;
    background: #333;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.level-bar {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50 0%, #FFEB3B 70%, #F44336 100%);
    width: 0%;
    transition: width 0.1s ease;
    border-radius: 10px;
}

.level-labels {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 120px;
}

.level-value,
.peak-value {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--font-color);
}

/* Visualization Section */
.visualization-section {
    margin-bottom: 30px;
    padding: 0 20px 20px 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Canvas Container Updates */
.canvas-container {
    position: relative;
    width: 100%;
    height: 400px;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

#spectrumCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.canvas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.pause-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 20px 40px;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    z-index: 10;
}

.pause-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
}

.frequency-labels {
    position: absolute;
    bottom: 5px;
    left: 35px; /* Move right to avoid overlap with amplitude labels */
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 10px;
    font-size: 0.8rem;
    color: #ccc;
    font-family: 'Courier New', monospace;
    pointer-events: none;
}

.amplitude-labels {
    position: absolute;
    top: 0;
    left: 5px;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 0 25px 0; /* Add bottom padding to avoid overlap */
    font-size: 0.8rem;
    color: #ccc;
    font-family: 'Courier New', monospace;
    pointer-events: none;
}

/* Playback Section */
.playback-section {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Playback Progress (within input section) */
.playback-progress {
    margin-top: 20px;
    padding: 15px;
    background: var(--content-bg-color);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.playback-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
}

.file-info {
    font-size: 0.9rem;
    color: var(--font-color);
    opacity: 0.8;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.time-display {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    font-weight: bold;
    color: var(--font-color);
    flex-shrink: 0;
}

.time-separator {
    margin: 0 6px;
    color: var(--font-color);
    opacity: 0.6;
}

.progress-container {
    position: relative;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50 0%, #2196F3 100%);
    width: 0%;
    transition: width 0.1s ease;
    border-radius: 4px;
}

.progress-handle {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background: #2196F3;
    border: 2px solid white;
    border-radius: 50%;
    cursor: pointer;
    transition: left 0.1s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.progress-handle:hover {
    transform: translate(-50%, -50%) scale(1.2);
}

/* Peak Section */
.peak-section {
    margin-bottom: 30px;
    padding: 0 20px 20px 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.peak-frequencies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.peak-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: var(--content-bg-color);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.peak-freq {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #007bff;
}

.peak-amp {
    font-family: 'Courier New', monospace;
    color: var(--font-color);
}

/* Info Section */
.info-section {
    margin-bottom: 30px;
    padding: 0 20px 20px 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: var(--content-bg-color);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.info-item label {
    font-weight: 600;
    color: var(--font-color);
}

.info-item span {
    font-family: 'Courier New', monospace;
    color: #007bff;
}

/* Export Section */
.export-section {
    padding: 20px;
    background: var(--alt-content-bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.export-controls {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.export-controls .btn {
    min-width: 200px;
    justify-content: center;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .main-container {
        width: 100%;
        max-width: 800px;
        margin: 10px auto;
        padding: 0 15px;
    }
    
    .analyzer-container {
        padding: 20px;
    }
    
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .input-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .input-group {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 768px) {
    .main-container {
        padding: 0 10px;
    }
    
    .analyzer-container {
        padding: 15px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .canvas-container {
        height: 300px;
    }
    
    .level-meter-container {
        flex-direction: column;
        gap: 10px;
    }
    
    .peak-frequencies {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .export-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .export-controls .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .playback-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .file-info {
        max-width: 100%;
    }
    
    .playback-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .playback-buttons .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .analyzer-container {
        padding: 10px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .canvas-container {
        height: 250px;
    }
    
    .privacy-notice {
        flex-direction: column;
        text-align: center;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .playback-controls {
        gap: 10px;
    }
    
    .time-display {
        font-size: 1rem;
    }
    
    .file-info {
        font-size: 0.8rem;
    }
    
    .progress-handle {
        width: 14px;
        height: 14px;
    }
    
    .level-meter-container {
        padding: 10px;
    }
    
    .level-meter {
        height: 16px;
    }
    
    .canvas-container {
        height: 250px;
    }
    
    .pause-overlay {
        padding: 10px 20px;
    }
    
    .pause-indicator {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .playback-progress {
        margin-top: 15px;
        padding: 12px;
    }
    
    .playback-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-bottom: 15px;
    }
    
    .file-info {
        max-width: 100%;
        order: 1;
    }
    
    .time-display {
        font-size: 0.9rem;
        align-self: flex-end;
        order: 2;
    }
    
    .progress-container {
        height: 10px;
    }
    
    .progress-handle {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    .playback-progress {
        padding: 10px;
    }
    
    .playback-info {
        margin-bottom: 12px;
    }
    
    .time-display {
        font-size: 0.85rem;
    }
    
    .file-info {
        font-size: 0.8rem;
    }
    
    .progress-handle {
        width: 16px;
        height: 16px;
    }
}

/* Add these styles for better dark mode visibility */

/* Peak Frequencies Section - Dark Mode */
@media (prefers-color-scheme: dark) {
    .peak-frequencies .peak-freq {
        color: #64B5F6; /* Light blue for better contrast */
    }
    
    .peak-frequencies .peak-amp {
        color: #81C784; /* Light green for amplitude values */
    }
    
    .info-grid .info-item span {
        color: #64B5F6; /* Light blue for analysis info values */
    }
    
    .level-value {
        color: #64B5F6; /* Light blue for level values */
    }
    
    .peak-value {
        color: #FFB74D; /* Light orange for peak values */
    }
}

/* Also add explicit dark mode styles for the body class approach */
body.dark-mode .peak-frequencies .peak-freq {
    color: #64B5F6 !important;
}

body.dark-mode .peak-frequencies .peak-amp {
    color: #81C784 !important;
}

body.dark-mode .info-grid .info-item span {
    color: #64B5F6 !important;
}

body.dark-mode .level-value {
    color: #64B5F6 !important;
}

body.dark-mode .peak-value {
    color: #FFB74D !important;
}

/* For systems using a dark theme class on html */
html.dark .peak-frequencies .peak-freq,
html.dark-theme .peak-frequencies .peak-freq {
    color: #64B5F6 !important;
}

html.dark .peak-frequencies .peak-amp,
html.dark-theme .peak-frequencies .peak-amp {
    color: #81C784 !important;
}

html.dark .info-grid .info-item span,
html.dark-theme .info-grid .info-item span {
    color: #64B5F6 !important;
}

html.dark .level-value,
html.dark-theme .level-value {
    color: #64B5F6 !important;
}

html.dark .peak-value,
html.dark-theme .peak-value {
    color: #FFB74D !important;
}

/* Additional contrast improvements for dark mode */
@media (prefers-color-scheme: dark) {
    .frequency-labels,
    .amplitude-labels {
        color: #E0E0E0; /* Lighter gray for axis labels */
    }
    
    .time-display {
        color: #E0E0E0; /* Lighter color for time display */
    }
    
    .file-info {
        color: #B0B0B0; /* Lighter gray for file info */
    }
}

/* Ensure consistent dark mode text colors */
body.dark-mode .frequency-labels,
body.dark-mode .amplitude-labels {
    color: #E0E0E0 !important;
}

body.dark-mode .time-display {
    color: #E0E0E0 !important;
}

body.dark-mode .file-info {
    color: #B0B0B0 !important;
}