body {
    background-color: #f3f4f6;
}
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 8px;
    margin-top: 40px;
    position: relative;
}
.language-switcher {
    position: absolute;
    top: 10px;
    right: 10px;
}
.language-switcher button {
    background: none;
    border: none;
    cursor: pointer;
    outline: none;
}
.todo-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    border-bottom: 1px solid #e5e7eb;
}
.todo-item:last-child {
    border-bottom: none;
}
.todo-text {
    flex-grow: 1;
    margin-right: 10px;
}
.todo-actions {
    min-width: 60px;
    text-align: right;
}
.btn {
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.btn:hover {
    background-color: #e5e7eb;
}
.btn-primary {
    background-color: #2563eb;
    color: #ffffff;
    border: none;
}
.btn-primary:hover {
    background-color: #1d4ed8;
}
.btn-danger {
    background-color: #ef4444;
    color: #ffffff;
    border: none;
}
.btn-danger:hover {
    background-color: #dc2626;
}
.input-field {
    margin-bottom: 10px;
}