/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Upload section */
.upload-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.upload-area {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fafafa;
}

.upload-area:hover {
    border-color: #667eea;
    background: #f0f4ff;
}

.upload-area.dragover {
    border-color: #667eea;
    background: #e8f2ff;
    transform: scale(1.02);
}

.upload-content {
    pointer-events: none;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.upload-area p {
    color: #666;
    font-size: 1.1rem;
}

/* Progress bar */
.upload-progress {
    margin-top: 20px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.9rem;
    color: #666;
}

/* Files section */
.files-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.section-header h2 {
    color: #333;
    font-size: 1.5rem;
}

.file-count {
    background: #667eea;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Audio Player */
.audio-player {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    color: white;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}

.player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.now-playing {
    flex: 1;
}

.track-title {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.track-artist {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
}

.close-player {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.close-player:hover {
    background: rgba(255,255,255,0.3);
}

.player-controls {
    margin-bottom: 15px;
}

.player-controls audio {
    width: 100%;
    height: 40px;
    border-radius: 8px;
}

.player-progress {
    text-align: center;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Files list */
.files-list {
    min-height: 100px;
}

.no-files {
    text-align: center;
    color: #999;
    font-style: italic;
    padding: 40px;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    margin-bottom: 10px;
    transition: all 0.2s ease;
    background: #fafafa;
}

.file-item:hover {
    background: #f0f4ff;
    border-color: #667eea;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.file-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    color: #667eea;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: #333;
    margin-bottom: 5px;
    word-break: break-all;
}

.file-details {
    font-size: 0.9rem;
    color: #666;
}

.file-actions {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

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

.btn-primary:hover {
    background: #5a6fd8;
    transform: translateY(-1px);
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

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

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 0;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    color: #333;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.close-modal:hover {
    background: #f0f0f0;
    color: #333;
}

.modal-body {
    padding: 30px;
}

.share-link-container {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

.share-link-input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.9rem;
    background: #f8f9fa;
}

.share-info {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}

.share-info p {
    margin: 5px 0;
    color: #666;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .upload-area {
        padding: 30px 20px;
    }
    
    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .file-actions {
        flex-direction: column;
        gap: 8px;
        width: 100%;
    }
    
    .file-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .share-link-container {
        flex-direction: column;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
}