/* Audio Editor Specific Styles */

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::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" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-top: 32px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.trust-item i {
    font-size: 16px;
    color: #f6ad55;
}

/* Upload Section */
.upload-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.upload-area {
    max-width: 800px;
    margin: 0 auto;
}

.upload-zone {
    background: var(--bg-primary);
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    user-select: none;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: rgba(49, 130, 206, 0.02);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.upload-zone.dragover {
    border-color: var(--primary-color) !important;
    background: rgba(49, 130, 206, 0.05) !important;
    transform: scale(1.02) !important;
    box-shadow: var(--shadow-lg) !important;
}

.upload-zone:active {
    transform: scale(0.98);
}

.upload-icon {
    font-size: 64px;
    color: var(--primary-color);
    margin-bottom: 24px;
    opacity: 0.8;
    transition: var(--transition);
}

.upload-zone:hover .upload-icon {
    opacity: 1;
    transform: scale(1.1);
}

.upload-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.upload-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.upload-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: underline;
    cursor: pointer;
}

.upload-link:hover {
    color: var(--primary-dark);
}

.supported-formats {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 24px 0;
}

.format-tag {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.upload-note {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* Progress Bar */
.progress-container {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    margin-top: 24px;
}

.progress-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* Editor Section */
.editor-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.editor-workspace {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* File List */
.file-list {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: between;
    padding: 16px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.file-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.file-item:last-child {
    margin-bottom: 0;
}

.file-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.file-details h4 {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: var(--text-primary);
}

.file-details p {
    margin: 0;
    font-size: 12px;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    gap: 8px;
}

.btn-file-action {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-file-action:hover {
    color: var(--error-color);
    background: rgba(245, 101, 101, 0.1);
}

/* Waveform Container */
.waveform-container {
    padding: 24px;
    background: var(--bg-primary);
}

.waveform {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

#waveform-canvas {
    width: 100%;
    height: 120px;
    display: block;
    border-radius: var(--radius-sm);
    cursor: crosshair;
}

#waveform-canvas.trim-mode {
    cursor: crosshair;
    border: 2px dashed var(--primary-color);
}

#waveform-canvas.trim-mode:hover {
    background: rgba(49, 130, 206, 0.05);
}

/* Control Panels */

/* Control Panels */
.controls-panel {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.controls-panel h4 {
    margin: 0 0 16px 0;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.trim-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--text-secondary);
}

.trim-actions {
    display: flex;
    gap: 12px;
}

.slider-control {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

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

.slider-control input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.slider-control input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
}

#volume-value, #speed-value {
    min-width: 50px;
    font-weight: 600;
    color: var(--primary-color);
}

/* Message Display */
.message-display {
    margin-top: 20px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    text-align: center;
    display: none;
}

.message-display.info {
    background: var(--info-bg, #e3f2fd);
    color: var(--info-color, #1976d2);
    border: 1px solid var(--info-border, #bbdefb);
    display: block;
}

.message-display.success {
    background: var(--success-bg, #e8f5e8);
    color: var(--success-color, #2e7d32);
    border: 1px solid var(--success-border, #c8e6c9);
    display: block;
}

.message-display.error {
    background: var(--error-bg, #ffebee);
    color: var(--error-color, #c62828);
    border: 1px solid var(--error-border, #ffcdd2);
    display: block;
    font-weight: 500;
}

/* Timeline Controls */
.timeline-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.time-display {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 80px;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.volume-control i {
    color: var(--text-muted);
    font-size: 16px;
}

#volume-slider {
    width: 100px;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

#volume-slider::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

#volume-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

/* Editing Tools */
.editing-tools {
    padding: 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.editing-tools h4 {
    margin: 0 0 16px 0;
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-group {
    margin-bottom: 24px;
}

.tool-group:last-child {
    margin-bottom: 0;
}

.tool-group h4 {
    margin-bottom: 12px;
}

.tool-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Export Settings */
.export-settings {
    padding: 24px;
    background: var(--bg-primary);
}

.export-settings h4 {
    margin: 0 0 20px 0;
    font-size: 16px;
    color: var(--text-primary);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-item label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.setting-item select {
    padding: 10px 12px;
    font-size: 14px;
}

.filename-setting {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filename-setting label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.filename-setting input {
    padding: 10px 12px;
    font-size: 14px;
}

/* Action Buttons */
.action-buttons {
    padding: 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 48px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 48px;
}

.step-card {
    text-align: center;
    padding: 32px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.step-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.step-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Formats Section */
.formats-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.format-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.format-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.format-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.format-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.format-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

/* Privacy Section */
.privacy-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.privacy-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.privacy-item {
    text-align: center;
    padding: 32px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.privacy-item i {
    font-size: 32px;
    color: var(--secondary-color);
    margin-bottom: 16px;
}

.privacy-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.privacy-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Related Tools */
.related-tools {
    padding: 80px 0;
    background: var(--bg-primary);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.tool-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.tool-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.tool-card i {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.tool-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.tool-card p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-question i {
    transition: var(--transition);
    color: var(--primary-color);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: none;
}

.faq-answer.active {
    display: block;
}

.faq-answer p {
    margin: 0;
}

/* Ad Section */
.ad-section {
    padding: 40px 0;
    background: var(--bg-secondary);
}

.ad-container {
    max-width: 800px;
    margin: 0 auto;
}

.adsense-placeholder {
    background: var(--bg-primary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .trust-indicators {
        gap: 16px;
    }
    
    .trust-item {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .upload-zone {
        padding: 40px 20px;
    }
    
    .upload-icon {
        font-size: 48px;
    }
    
    .upload-title {
        font-size: 1.25rem;
    }
    
    .supported-formats {
        gap: 8px;
    }
    
    .format-tag {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .steps-grid,
    .formats-grid,
    .privacy-grid,
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .timeline-controls {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .volume-control {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .upload-zone {
        padding: 30px 15px;
    }
    
    .editor-workspace {
        margin: 0 -15px;
        border-radius: 0;
    }
    
    .file-list,
    .waveform-container,
    .editing-tools,
    .export-settings,
    .action-buttons {
        padding: 20px 15px;
    }
}

/* Dark mode for audio editor */
@media (prefers-color-scheme: dark) {
    .upload-zone {
        background: var(--bg-secondary);
    }
    
    .file-item {
        background: var(--bg-primary);
    }
    
    .waveform {
        background: var(--bg-secondary);
    }
    
    .timeline-controls {
        background: var(--bg-secondary);
    }
    
    .controls-panel {
        background: var(--bg-secondary);
    }
    
    .tool-card,
    .format-card,
    .feature-card,
    .step-card,
    .privacy-item,
    .faq-item {
        background: var(--bg-secondary);
    }
}