* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #dcd5d5;
    color: #333;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 885px;
    margin: 0 auto;
    padding: 8px;
    border-radius: 12px;
}

.content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    width: 100%;
}

.toolbar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    border-bottom: 1px solid #eee;
}

.toolbar-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.add-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.add-btn svg {
    width: 18px;
    height: 18px;
}

.file-list {
    min-height: 400px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: #999;
    background: #fafafa;
    border-radius: 12px;
    margin: 20px;
    text-align: center;
}

.empty-state svg {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    opacity: 0.4;
    transition: opacity 0.2s ease;
}

.empty-state:hover svg {
    opacity: 0.6;
}

.empty-state p {
    font-size: 18px;
    margin-bottom: 8px;
    color: #666;
}

.empty-state .hint {
    font-size: 14px;
    color: #ccc;
    max-width: 300px;
    line-height: 1.5;
}

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: #999;
    background: #fafafa;
    border-radius: 12px;
    margin: 20px;
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-state p {
    font-size: 16px;
    color: #666;
}

.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: #e53935;
    background: #ffebee;
    border-radius: 12px;
    margin: 20px;
    text-align: center;
}

.error-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    color: #e53935;
}

.error-state p {
    font-size: 16px;
    color: #e53935;
    margin-bottom: 8px;
}

.error-state .hint {
    font-size: 14px;
    color: #ef5350;
    max-width: 300px;
    line-height: 1.5;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s ease;
    background: white;
}

.file-item:hover {
    background-color: #f8f9ff;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
}

.file-item:last-child {
    border-bottom: none;
}

.file-info {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

.file-name {
    font-size: 15px;
    font-weight: 500;
    color: #147b3f;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.2s ease;
}

.file-item:hover .file-name {
    color: #27ae60;
}

.file-url {
    font-size: 13px;
    color: #999;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.file-item:hover .file-url {
    opacity: 1;
}

.file-actions {
    display: flex;
    gap: 8px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.file-item:hover .file-actions {
    opacity: 1;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: none;
}

.action-btn:hover {
    background: #f0f0f0;
    color: #666;
    transform: none;
    box-shadow: none;
}

.action-btn.delete:hover {
    background: #ffebee;
    color: #e53935;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
}

.modal.visible {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 420px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: #f5f5f5;
    border-radius: 8px;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: #e74c3c;
    color: white;
}

.modal-body {
    padding: 24px;
}

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

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.form-group input::placeholder {
    color: #ccc;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid #eee;
    background: #fafafa;
}

.btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-cancel {
    background: #f5f5f5;
    color: #666;
}

.btn-cancel:hover {
    background: #eee;
}

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

.btn-confirm:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 24px;
    background: #333;
    color: white;
    border-radius: 8px;
    font-size: 14px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2000;
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: #27ae60;
}

.toast.error {
    background: #e74c3c;
}